modification dates for phil's home page:

cur year :  2007 2006 : 2005 : 2004 : 2003 : 2002 : 2001 : 2000

• 06oct08   fractional occurence of rfi for sep08
• 06oct08  Alfa Tsys for the month of sep08
• 06oct08   alfalfa (a2010) monitoring of data for month of sep08
• 06oct08   alfa stability (using a2010 date) PolA/polB ratios for sep08
• 06oct08   ages (a2048) monitoring of data for month of sep08
• 06oct08  tiedown tensions for sep08
• 06oct08  azimuth motor torques vs velocity for aug08
• 02oct08   psrfits test program to time cfitsio i/o rates.
  
• 29sep08   sbw cal values updaed from 26sep08 cal measurements.
  
• 26sep08   lbw cals updated from 26sep08 cal measurements.
  
• 26sep08   alfa long recovery times vs alfa rotation angle. data taken 24sep08.
  
• 24sep08   pdev adc blanking of faa, remy 1290 radar. az=180, za=17 to 17.5
  
• 23sep08   alfa long recovery times after bias changes (on sky)
  
• 21sep08   check alfa stability after bias voltages changed.
  
• 18sep08   added idl routines for satellite predection at AO.
  
• 18sep08   alfa long recovery. modify 3a bias board. Change V,I bias for 3A and 3B
  
• 16sep08   alfa long recovery. Remove zener 3b, amp3 bias circuit. Modify Vd,I
  
• 16sep08   picture showing alfa, pdev layout.
  
• 12sep08   Modifying the bias currents with pulsed noise into the alfa horn.
  
• 05sep08   fractional occurence of rfi for aug08
• 05sep08  Alfa Tsys for the month of aug08
• 05sep08   alfalfa (a2010) monitoring of data for month of aug08
• 05sep08   alfa stability (using a2010 date) PolA/polB ratios for aug08
• 05sep08   ages (a2048) monitoring of data for month of aug08
• 05sep08  tiedown tensions for aug08
• 05sep08  azimuth motor torques vs velocity for aug08
• 04sep08   22-28aug08 gps sv26 flies thru beam during proj a2010.
  
• 02sep08    measure pdev pfb overflow vs a/d rms and fftlen using a sine wave input.
  
• 29aug08   lbw cal values meaured and installed.
  
• 28aug08   fractional occurence of rfi for jul08
• 28aug08  Alfa Tsys for the month of jul08
• 28aug08   ages (a2048) monitoring of data for month of jul08
• 28aug08  tiedown tensions for jul08
• 28aug08  azimuth motor torques vs velocity for jul08
• 27aug08  Pulsed noise into alfa horn shows long recovery is in dewar.
  
• 16jul08    tsys 327 vs date,hr,ra,dec
  
• 10jul08    pdev spectral  bandpass shape and spectral jumps with low a/drms
  
• 04jul08   fractional occurence of rfi for jun08
• 04jul08   Alfa Tsys for the month of jun08
• 04jul08   ages (a2048) monitoring of data for month of jun08
• 04jul08   tiedown tensions for jun08
• 04jul08   azimuth motor torques vs velocity for jun08
• 02jul08    lbw cooldowns.. omt stage not getting below 180K
  
• 25jun08   faa radar cause pdev a/d to overflow causing spectral artifacts.
  
• 25jun08   intermods/harmonics created when clipping a sine wave.
  
• 24jun08   modeling the faa radar total power period for pulsar observers.
  
• 24jun08   pdev spectrometer added list of datafiles taken by month.
  
• 23jun08   added tiedown loadcell locations and serial numbers.
  
• 23jun08    SEFDA/SEFDB for 327 rcvr shows TsysB/TSYSA=1.1
  
• 23jun08   added 327 dewar to receiver monitoring.
  
• 23jun08   11jun08 mot82 azTq reads nonzero when power off.
  
• 22jun08   fit 1az, 3az term to pointing runs to update model.
  
• 19jun08   pdev take 12 secs of data with galfacts setup (sitting 270,10).
  
• 15jun08   pdev time domain sampling does not have an 8bytes record header.
  
• 14jan08   pdev spectrometer specifications.
  
• 13jun08   added cal values for 327 cooled receiver.
  
• 13jun08   pdev spectrometer. spectral bandpass, rms  vs Ashift param for 16 bit sampling.
  
• 12jun08   more a1300 calibrate oh spectra for tom..
• 10jun08   fractional occurence of rfi for may08
• 10jun08   Alfa Tsys for the month of may08
• 10jun08   alfalfa (a2010) monitoring of data for month of may08
• 10jun08   ages (a2048) monitoring of data for month of may08
• 10jun08   alfa stability (using a2010 date) PolA/polB ratios for may08
• 10jun08   tiedown tensions for may08
• 10jun08   azimuth motor torques vs velocity for may08
• 09jun08    td 12 encoder interface board fails from lightning strike.
  
• 09jun08    added system performance by month page.
  
• 08jun08    started page with pdev fpga code
  
• 06jun08    added pdev link from home page
  
• 30may08   a1300 calibrate oh spectra for tom..
  
• 29may08   tiedown positions during the painting project.
  
• 24may08  platform, tiedown motion during vlbi cal scan 15may08
  
• 21may08   x102 run output from 20may08 cband.
  
• 19may08   a2327 dataprocessing.
  
• 16may08     process a2228 xband data looking for O2. check xband stability.
  
• 05may08    fractional occurence of rfi for apr08
  
• 05may08   Alfa Tsys for the month of apr08
  
• 05may08   alfalfa (a2010) monitoring of data for month of apr08
• 05may08   ages (a2048) monitoring of data for month of apr08
  
• 05may08   alfa stability (using a2010 date) PolA/polB ratios for apr08
  
• 05may08   tiedown tensions for apr08
  
• 05may08   azimuth motor torques vs velocity for apr08
  
• 03may08  pdev spectral bandpass and rms vs ashift parameter for 8 and 16 bit packing.
  
• 02may08  gain and bandpass shape of the digital low pass filters of pdev.
  
• 02may08  a2390.. hi cal not firing at end of scan.
  
• 01may08   when faa radar broadcasts at 1330,1350.. 2008 thru april
  
• 26apr08   bbmixer compression levels from a sine wave input.
  
• 24apr08   pdev A/D rms values vs mixerGain and compression levels. On sky and noisesrc.
  
• 22apr08   lbw polb is noisier than polA.
  
• 21apr08   pnetctl information
  
• 08apr08   07apr08 td 8 stops moving. commandvel=0 and level jmps in torque readback.
  
• 06apr08    fractional occurence of rfi for mar08
  
• 06apr08   Alfa Tsys for the month of mar08
  
• 06apr08   alfalfa (a2010) monitoring of data for month of mar08
• 06apr08    ages (a2048) monitoring of data for month of mar08
  
• 06apr08   alfa stability (using a2010 date) PolA/polB ratios for mar08
  
• 06apr08   tiedown tensions for mar08
  
• 06apr08   azimuth motor torques vs velocity for mar08
  
• 05apr07   pulsed power injected into alfa down converted to  see long revcovery times.
  
• 05apr08   alfa if/lo system
  
• 25mar08   The za locations were alfa power jumps occur when at the meridian.
  
• 25mar08   alfa power jumps with long recovery times using pdev
  
• 17mar08   pdev spectral bandpass shape vs A/D input level and PSHIFTvalue.
  
• 14mar08   pdev bbm signal levels. Injecting a sine wave at the bbm input.
  
• 14mar08   input signal levels to generate a full scale a/d output for pdev.
  
• 10mar08   alfa power jump and long recovery time from radars using pdev.
  
• 09mar08    fractional occurence of rfi for jan08,feb08
  
• 09mar08   Alfa Tsys for the months jan08,feb08
  
• 09mar08    alfalfa (a2010) monitoring of data for month of jan08,feb08
• 09mar08    ages (a2048) monitoring of data for month of jan08,feb089
  
• 09mar08    alfa stability (using a2010 date) PolA/polB ratios for jan08,feb08
  
• 09mar08   updated system performance page for jan08,feb08
  
• 08mar08   rdev filter shapes with 17 and 11 db roll off coefficients.
  
• 21feb08   az motor torques for motor group 1 and motor group 2.
  
• 20feb08   Added iflo block diagrams.
  
• 07feb08   check lbw sefdpolA/sefdPolB after adjusting the dewar biases.
  
• 06feb08   first start at params needed to config pdev from cima.
  
• 06feb08   az motor torques after amplifier pots adjusted.
  
• 05feb08   check lbw polB Tsys using sefd taken 18dec07
  
• 05feb08   spread in az motor torques jan08.
  
• 04feb08   added monthly monitoring of azimuth motor torques.
  
• 04feb08   added jon hagens vertex memos.
  
• 04feb08   check td12 after adjusting the current limit on amp.
  
• 21jan08   added table of filter programs to make ascii dumps of data and monitor files.
  
• 18jan08   pointing model gradients
  
• 18jan08   td 12 has been stopping off and on. Torque limit set too low.
  
• 11jan08   fractional occurence of rfi for dec07
  
• 11jan08    Alfa Tsys for the month of dec07
• 11jan08    updated system performance page for dec07
• 11jan08   updated wind monitor page with yr 2007 summary
• 11jan08   updated platform temp page with yr 2007 summary
  
• 11jan08   added temperature sensor page in hardware devices.
  
• 09jan08  vertex motor, amp, compboard settings.
  

2007

• 16dec07   pointing model 17 after the painting project.
  
• 15dec07   status recommissioning telescope after the painting..
• 11dec07   plotted az motor torques from az swings. Motor 81's torque is too high.
  
• 11dec07   az bending errors.
• 10dec07   Moved td ref position using 10dec07 data then redid az swing to check 1az term.
• 10dec07  az swings measuring platform tilt.
  
• 09dec07  equalizing the tiedown positions after removing the lead in the platform corners.
  
• 07dec07   remeasure platform tilt using tilt sensors after adjusting with 06dec07 data.
  
• 06dec07   measure platform tilt with tilt sensors after painting with current td positions.
  
• 04dec07  more updates on aofits header.
• 27nov07  refit dut1 (utc-ut1) using data 27nov07 to 22nov08.
  
• 26nov07  notes on aofits header.
  
• 16nov07  added ntp entry to hardware page to keep track of ntpd measurements.
  
• 30oct07   pdev mixer i,q phase relation. added loband data with lo at 205 and 215
  
• 19oct07   added platform motions page to group all the platform motion measurements.
  
• 12oct07   setting the gain levels in the pdev spectrometer.
• 11oct07   simulating the fir portion of the polyphase filter bank for pdev.
  
• 10oct07   checking spectral output vs pdev dshift param.
  
• 01oct07   converting spectrum back to rms volts (notes to myself)
  
• 28sep07   simulating the gain of the digital low pass filters.
  
• 26sep07   bump in center of bandpass from mixture chassis stable in time.
  
• 26sep07   location of noise rms bits in DLPF processing (setting hr_shift).
  
• 20sep07   spectral increase +/- 3 MHz about center is gain related.
  
• 19sep07   noise spectra with and without the mixer chassis.
  
• 18sep07    pdev mixer bandpass using noise source.
  
• 29aug07   testing time domain dumping on the pdev spectrometer.
  
• 23aug07   monitor programs: montel, monpnt, montie, etc.. now run on linux
  
• 06aug07   Added how jmocks routines start,run, stop in pdev software documentation.
  
• 06aug07    recomputed lbw stokes plots using carl's latest and greatest fix.
  
• 04aug07    added software page for pdev software. What i'm doing and how to rebuild jeffs system.
  
• 04jul07   Pdev device. Looking at birdies close to dc with radar fpga (with 25Mhz filter).
  
• 01jul07    first look at pdev mixer chassis bandpass shape.
  
• 29jun07    computed stokes calibration data lbw for jan2006->jun07
  
• 21jun07   pdev accpetance testing. Updated with interim correlator comparison. Include on/off spectra.
  
• 14jun07    pdev acceptance testing. included the rest of the boxes. added rms vs integration time.
  
• 12jun07   pdev acceptance testing .. include longer integrations.
  
• 11jun07   p1978 wapp pulsar polarization runs but 2 rather than 1 diodes used.
  
• 06jun07    acceptance testing the spectrometer boxes.
  
• 09may07   Strong 60 hz seen in the 327 receiver 15apr07 to 03may07.
  
• 07may07    fractional occurence of rfi for apr07
• 07may07    Alfa Tsys for the month of mar07
• 07may07    alfalfa (a2010) monitoring of data for month of apr07
• 07may07    alfa stability (using a2010 date) PolA/polB ratios for apr07
• 07may07    ages (a2048) monitoring of data for month of apr07.
• 07may07    updated system performance page for apr07
• 03may07  modeling the azimuth pointing errors.
  
• 02may07   recomputed the azimuth encoder runout (with a simpler method).
  
• 28apr07    frequency spectrum (cycles in 360 degrees) for the az encoder runout data.
  
• 26apr07    24apr07 pointing checks with sbn.
• 25apr07    added pdev spectrometer idl routines for testing
• 25apr07    added rdev radar processor routines for testing.
  
• 24apr07    23apr07 pointing checks with sbn.
• 22apr07    polA resonance lbw at 1400 Mhz gone after omt bolts tightened. PolB at 1395 still there.
  
• 22apr07    21apr07 pointing checks with sbn.
• 21apr07    20apr07 pointing checks with sbn.
• 21apr07    19apr07 pointing checks with sbn.
• 19apr07     included wind monitoring for the previous week.
• 19apr07    18apr07 pointing checks with sbn.
• 18apr07     What happens to the dome when we move the ch from 2 to 20 degs za.
  
• 18apr07    17apr07 pointing checks with sbn after alfa lowered.
• 18apr07    13apr07 pointing checks with sbn.
• 18apr07     plot focus curves feb03 and 2006 .
• 15apr07     The rotation angle on the sky when we rotate the platform.
  
• 13apr07     07apr07 tilt sensor azswings, adjust td's, after lead removed from corner 12.
• 13apr07    1330/1350 faa radar ipps back to normal sequence.
  
• 13apr07     07apr07 tilt sensor az swings and then readjustment of the tiedown reference.
  
• 13apr07     04apr07 tilt sensor azswings, adjust td's, more azswings after lead removed.
  
• 12apr07    12apr07 pointing checks with sbn.
• 12apr07    09apr07 pointing checks with lbw after installation in dome.
• 12apr07    11apr07 pointing checks.
• 12apr07    1330/1350 faa radar ipps jump by  9 useconds.
  
• 11apr07    10apr07 pointing checks.
• 11apr07    azimuth encoder 1 failed twice in the morning.
  
• 09apr07    encoder 1 fault 08apr07. eventually reset by power dip.
• 08apr07    07apr07 pointing checks after tiedowns reset to correct for weight removed from corner 12.
• 08apr07    05_06apr07 pointing checks after azimuth encoders reset.
• 07apr07    04apr07 dome local disable cable breaks. Both azimuth encoders reset.
• 06apr07    04apr07 pointing check after tiedown positions moved.
• 03apr07    radar seen 28mar07 in the serendip 5 spectrometer using alfa.
• 03apr07    02apr07 pointing checks after half the lead from corner 4 lowered.
• 02apr07    01apr07 pointing checks.
• 02apr07    fractional occurence of rfi for mar07
• 02apr07    Alfa Tsys for the month of mar07
• 02apr07    alfalfa (a2010) monitoring of data for month of mar07
• 02apr07    alfa stability (using a2010 date) PolA/polB ratios for mar07
• 02apr07    updated system performance page for mar07
• 31mar07    31mar07 pointing checks after laser shack removed.
• 31mar07    tilt sensor az swings after laser shack removed.
• 31mar07    30mar07 pointing checks.
• 30mar07    tilt sensor az swings showing 1,3az terms prior to painting project.
• 29mar07    pointing checks before painting project started
• 08mar07    bad cable wapp 4 brd1 polB (alfa 6B) causes jumps in the gain
• 08mar07    fractional occurence of rfi for feb07
• 08mar07    Alfa Tsys for the month of feb07
• 08mar07    alfalfa (a2010) monitoring of data for month of feb07
• 08mar07    alfa stability (using a2010 date) PolA/polB ratios for feb07
• 08mar07    updated system performance page for feb07
• 07mar07    added monthly monitoring of AGES a2048 alfa data.
• 06mar07    a2125 continuum mapping at 430 Mhz.
• 05mar07    when the faa radar transmits at 1330 and 1350 Mhz
• 05mar07  Added the faa radar page to the rfi pages.
• 19feb07    lbw beam maps computer from the calibration scans.
• 19feb07    amplifier 21,22 of dome going not ready.
• 17feb07    telescope performance talk for feb07 visiting committe.
• 13feb07    lbw sefd around 1100 Mhz with some rfi plots.
• 09feb07    refit alfa tsys using cal data 01jan05 thru 31jan07.
• 07feb07    gps l3 test on 06dec06 in the a2010 data.
• 06feb07    fractional occurence of rfi for jan07
• 06feb07    Alfa Tsys for the month of jan07
• 06feb07    alfalfa (a2010) monitoring of data for month of jan07
• 06feb07    alfa stability (using a2010 date) PolA/polB ratios for jan07
• 06feb07    updated system performance page for jan07
• 02feb07    First look at the faa radar with the pdev spectrometer.
• 02feb07    measuring where the pdev specrometer satures (pfb sat.)
• 31jan07    if2 noise source test of pdev spectrometer. Include rms vs integration time.
• 23jan07    2 minute on/offs with pdev (jeffmocks new spectrometer)
• 20jan07    system performance page: llimit to 2000 pnts,.pdf files added, old data moved to separate page.
• 18jan07    added ao network switch contents.
• 12jan07    Platform temperature yearly summary plots for 2006.
• 12jan07    Windmeter yearly summary plots for 2006.
• 12jan07    fractional occurence of rfi for dec06
• 12jan07    Alfa Tsys for the month of dec06
• 12jan07    alfalfa (a2010) monitoring of data for month of dec06
• 12jan07    alfa stability (using a2010 date) PolA/polB ratios for dec06
• 12jan07    updated system performance page for dec06




2006   (top)
 

• 14dec06    large birdies at 418.625 and 419.2 Mhz.
• 11dec06    update the pointing models for sin(za) and 1 az terms.
• 10dec06    fit new value for UT1-UTC (dec06 thru  jun07).
• 06dec06    4 az swings with tilt sensors at za=10 to measure platform residual tilt.
• 06dec06   Updated angle of tilt sensor on the rotary floor for data taken: 2005,2006.
• 05dec06    fractional occurence of rfi for nov06
• 05dec06    Alfa Tsys for the month of nov06
• 05nov06    alfalfa (a2010) monitoring of data for month of nov06
• 05dec06    alfa stability (using a2010 date) PolA/polB ratios for nov06
• 05dec06    updated system performance page for nov06
• 28nov06    check the linearity of the programmable gain in the downstairs IFLO.
• 28nov06    pointing checks nov06 after az encoder error.
• 22nov06    a2125 430Mhz continuum maps of the individual fields.
• 21nov06    How well was encoder 1 realigned after the 14nov06 encoder failure.
• 12nov06    beam1a of alfa is noiser than the other beams.
• 07nov06    fractional occurence of rfi for oct06
• 07nov06    Alfa Tsys for the month of oct06
• 07nov06    alfalfa (a2010) monitoring of data for month of oct06
• 07nov06    alfa stability (using a2010 date) PolA/polB ratios for oct06
• 07nov06    updated system performance page for oct06
• 31oct06    cable test lbw in upstairs iflo shows loose cables in 750 mixer chassis.
• 28oct06    az Encoder board failure 14oct06.
• 18oct06    looking at the rfi from the axis web camera.
• 12oct06    Dewar monitor failure was the upstairs ethernet repeater.
• 12oct06    added dewar monitoring hardware page.
• 09oct06    compare 614 khz comb strength with new and old encoders.
• 09oct06    added az,za encoder page. Include comb at 430 Mhz.
• 05oct06    az,za, time dependence of the 614 khz comb in 327.
• 04oct06    614 Khz comb in 327 Mhz reciever.
• 03oct06    added 327 birdies with azimuth dependence to the rfi frequency list.
• 03oct06    fractional occurence of rfi for sep06
• 03oct06    Alfa Tsys for the month of sep06
• 03oct06    alfalfa (a2010) monitoring of data for month of sep06
• 03oct06    alfa stability (using a2010 date) PolA/polB ratios for sep06
• 03oct06    updated system performance page for sep06
• 29sep06    added alfa stablity, jan06 thru jun06.
• 28sep06    added alfa stablity page. Used a2010 data and ratio Pola/PolB added months aug06,sep06
• 25sep06    12 second radar at 1378 Mhz appears for 430 seconds on 05sep06
• 24sep06    fractional occurence of rfi for aug06
• 24sep06    Alfa Tsys for the month of aug06
• 24sep06    alfalfa (a2010) monitoring of data for month of aug06
• 24sep06    updated system performance page for aug06
• 31aug06    new lbw cal values installed. measured 06jul06.
• 30aug06    cable sag measurements .. added avg td tensions.
• 29aug06    new cband cal values installed. Measured 06jul06.
• 24aug06   test the rf monitor at the visitors center with the  430 transmitters.
• 20aug06    Added daily monitor of tiedown tensions.
• 17aug06    430 Dome. Fit antenna gain vs frequency.
• 12aug06    check 430yagi performance after the feed was moved closer to the linefeed.
• 09aug06    noise/gain stability 4-6 ghz mmic, cbh using sqLaw det. and wapps
• 06aug06    fractional occurence of rfi for jul06
• 06aug06    Alfa Tsys for the month of jul06
• 06aug06    alfalfa (a2010) monitoring of data for month of jul06
• 03aug06  test stability of mmic amp in cryo lab. also check cbh and noise src.
• 30jul06    test stability of mmic amp in cryo lab.
• 27jul06    added punta salinas radar page.
• 22jul06    punta salinas radar blanking test.
• 18jul06    az,za dependence of rfi using transmitted birdies.
• 17jul06    1200 Mhz  narrow birdie.
• 14jul06    1188 Mhz birdie, 66 Mhz comb from kronos timecard reader.
• 13jul06    cat walk weight survey by felipe soberal
• 13jul06    added lbw sefd fits Mar03 thru jun06.
• 13jul06    added sefd page for receivers
• 13jul06    added sefd description page
• 10jul06    birdie near 1320 Mhz.
• 07jul06    az,za position and tiedown tensions during main cable sag measurements (mar06)
• 05jul06    fractional occurence of rfi for jun06
• 05jul06    Alfa Tsys for the month of jun06
• 05jul06    alfalfa (a2010) monitoring of data for month of jun06
• 29jun06    updated system performance page for may06
• 29jun06    alfalfa (a2010) monitoring of data for month of may06
• 29jun06    Alfa Tsys for the month of may06
• 29jun06    fractional occurence of rfi for may06
• 02jun06    430 yagi jumps are the rfi birdies with 1 minute periodicity
• 01jun06    System performance 430 yagi after capacitor repaired.
• 24may06    moved 430 yagi  info from 430ch page to its own page.
• 12may06    Compare the focus curves for the old and new sb tx horn.
• 12may06    sband tx focus curve after the new horn was installed.
• 11may06  fractional occurence of rfi for apr06
• 11may06    distomat birdies after the windows changed (corrected distomat numbering).
• 10may06    a1731 looking at the processe datamap,beammap, and uvdata.
• 07may06    performance of new sband tx horn.
• 03may06    distomat birdies after the windows were changed (data taken 07apr06)
• 03may06    updated system performance page for apr06
• 03may06    alfalfa (a2010) monitoring of data for month of apr06
• 03may06    Alfa Tsys for the month of apr06
• 28apr06    sband tx focus curve before the new horn was installed.
• 27apr06    focus curve using sbn rcv on J0745+101 (taken 25apr06).
• 26apr06    trendata ethernet switch rfi with and without fiber active.
• 21apr06    one of alfa's refrigerators fails on 18apr06.
• 21apr06    td12 startup trouble was digital i/o signal conditioning board
• 19apr06    the 750,40 Khz combs in 327 receiver coming from sband console in dome.
• 16apr06    750 Khz and 39.45 Khz combs in 327 receiver.
• 15apr06    testing the trenddata gigabit switch for rfi.
• 13apr06    added a2127 Xband data for 08mar06 and 03apr06.
• 11apr06    sbn cals meausured at 2380 and 2280..
• 11apr06    stokes calibration sbn new cals using 3C138. data daken 17feb06
• 09apr06   430 ch yagi performance after latest move.
• 08apr06    mars express quick look.
• 06apr06    updated my rfi page. Moved things from my home page to here.
• 05apr06    ntp time jumps on the wapps 2003-2006. What was causing them.
• 03apr06    added things to check when configuring a linux kernel for datataking.
• 03apr06    When the ntpd on aeron lost sync 2003-2006.
• 03apr06    updated system performance page for mar06
• 03apr06    alfalfa (a2010) monitoring of data for month of mar06
• 02apr06    fractional occurence of rfi for mar06
• 01apr06    Alfa Tsys for the month of mar06
• 01apr06    echotek configuration causes i,q samples to not have a 90deg phase difference.
• 29mar06    Document vxWorks programs by vme crate.
• 28mar06    look at new Ac units. compare with older units to see if comb is gone.
• 27mar06    added radar decoding explanation to my notes.
• 19mar06    linefeed, yagi overlap at 100 km.
• 16mar06    A description of tiedown a/d signals
• 16mar06    td 12 does not always start up when it is commaned to.
• 14mar06    Start mechincal oscillations page.
• 14mar06    Azimuth encoder difference and the az encoder rack gear.
• 13mar06    total power oscillations while tracking the crab at cbh.
• 09mar06    Measure tsys for the 9 filters of lbw.
• 08mar06    Az encoder 2 (ch side) jumps.
• 07mar06    lbw cal polB . tapping on cables external to dewar to not change cal.
• 07mar06    lbw 1230-1470 filter look to see if Tsys changes as we switch it in /out.
• 07mar06    The jun05 warmup/cooldown of lbw actually caused resonances in polA and polB.
• 04mar06    lbw reran stokes analysis for dec05,jan06,feb06 to use new cal values.
• 04mar06    Alfa Tsys for the month of feb06
• 04mar06    fractional occurence of rfi for feb06
• 04mar06    alfalfa (a2010) monitoring of data for month of feb06
• 03mar06    td 12 releases for 10 minutes.
• 03mar06   added idl routines to look at tiedown data.
• 02mar06   metmon: idl routine to monitor meteors. added positioning cabability
• 01mar06   added accessing the cal values page:
• 28feb06    remeasured lbw cal values after 04dec06 polB jump.
• 28feb06    lbw polB cal value jumps by 20% on 04dec05.
• 24feb06    Harmonics created in the alfa/wapp receiver with cfr=1385.
• 24feb06    added idl routine alfawappharm to compute location of harmonics in alfa/wapp.
• 17feb06    Added Ao serverlist.
• 15feb06    tried to make the different receiver pages a little more similar.
• 15feb06    put 430 dome cals in cals page (these values were measured back in 2001).
• 08feb06    Added yearly summary plots of windmeter data.
• 07feb06    The radar blanker multiplexor (calixto's box) needs to be worked on.
• 05feb06    Daily, yearly platform temperatures now on web.
• 04feb06    Daily windmeter data now on web.
• 03feb06    fractional occurence of rfi for jan06
• 03feb06    alfalfa (a2010) monitoring of data for month of jan06
• 03feb06    Alfa Tsys for the month of jan06
• 03feb06    updated system performance page for jan06
• 01feb06    Added monitoring of wind meter data.
• 28jan06     check the azimuth encoder offset after the nov05 failure.
• 24jan06    47 Mhz On, off 3C348.0 (Hercules A) Tsys,gain,Beamwidth,sefd
• 24jan05    A first look at the 47 Mhz bandpass, dynamic spectra, rfi.
• 21jan06   rms voltage for optimum sampling with 2,3,4, and 5 bits.
• 18jan06    check the calibration source fluxes.
• 17jan06   compression in the alfa receiver with the 100 Mhz filter installed.
• 16jan06    28oct05 az swings with 327 showed birdies with 1 minute periodicities.
• 15jan06    wide band look at ac dome birdies in 327 Mhz reciever.
• 14jan06    3rd harmonics of fm stations in 327 receiver.
• 13jan06    placing a hipass and bandpass filter before the 327Rcvr first amp.
• 13jan06    check xband receiver after testing in lab.
• 11jan06    re arranged the rfi measurements page (might have broken some links??)
• 10jan06    1 Mhz comb of Ac units in dome also seen in 430 Mhz rcvr.
• 09jan06    26dec05 lbw no power polB for 1 file (probably downstairs iflo problem).
• 09jan06    added links to vanvleck correction papers: fred schwab, kulkarni/heiles.
• 05jan06    Alfa Tsys for the month of dec05
• 05jan06    fractional occurence of rfi for dec05.
• 05jan06    alfalfa (a2010) monitoring of data for month of dec05
• 05jan06    updated system performance page for dec05

2005   (top)
• 14dec05    Instructions for crossing midnight at the end of the year.
• 13dec05    Started adding list of combs to the rfi freq list page.
• 12dec05    9 level correction problem with wapp pulsar folding.
• 07dec05    fractional occurence of rfi for nov05.
• 07dec05    alfalfa (a2010) monitoring of data for month of nov05
• 07dec05    Alfa Tsys for the month of nov05
• 06nov05    updated system performance page for nov05
• 05dec05    430 Mhz birdies with 1 minute periodicity.
• 01dec05    bits used in the hp3488 digital output device for the downstairs IF2.
• 26nov05  trouble with lbw polB filter 3 (1230-1470 Mhz).
• 22oct05    gain curves of all recievers. updated the cband gain curve, added 327.
• 22oct05    cband gain curves fit to data may05-oct05.
• 22oct05    cband system performance used for gain curve fits
• 21nov05   performance of mathews 430 test feed with cals installed.
• 05nov05    The azimuth dependence of birdies in the 327 Mhz reciever.
• 04nov05    alfalfa (a2010) monitoring of data for month of oct05
• 02nov05    updated system performance page for oct05
• 02nov05    Alfa Tsys for month of oct05.
• 02nov05    fractional occurence of rfi for oct05.
• 29oct05    lbw calibration jumps for murray's oh data.
• 28oct05    standing waves measured by moving the platform with the tiedowns.
• 21oct05    The output of the 327 Mhz rcvr after the 1st amp (and before the filter).
• 17oct05    location of faa 1350 radar aliases in alfa.
• 16oct05    1 Mhz comb in 327 coming from digital control units in dome AC units.
• 14oct05    Cal stability for mathews 430 feed checked.
• 13oct05    added idl routine atmclp to process coded long pulse data from ri rawdat.
• 10oct05    some linux kernels see no speed up when running 2 processes on a dual processor cpu.
• 07oct05    Tsys jump of sbw aug05 is from the cal value changing.
• 06oct05    fractional occurence of rfi for sep05.
• 06oct05    Measure the 1300/1400 Mhz birdies in lbw. Most comes from the wapps.
• 05oct05    Alfa Tsys for month of sep05.
• 05oct05    a2010 (alfalfa) monitor data for month of sep05.
• 29sep05    added 430 carriage house cal values.
• 27sep05    atm digital receiver  glitches every 100 ipps.
• 26sep05    added idl shsxxx routines to read atm echotek digital receiver data.
• 20sep05     cell phone harmonics in lbw while transmitting from inside the dome.
• 20sep05    added cell phone info page.
• 16sep05    td8 analog input problems.
• 15sep05    alfa: the cal deflection is not a function of the feed rotation angle.
• 14sep05    TsysA-TsysB "polarized Tsys" with the alfa rcvr. Az spins and feed rotation.
• 13sep05    tilt sensor measurement while rotating turret floor (after rolling surface section replaced).
• 07sep05    tension in tiedowns after the loadcells were recalibrated.
• 05sep05    fractional occurence of rfi for aug05.
• 05sep05      The 16Khz comb at 327. Grounding the motor shields helps for awhile.
• 03sep05     Alfa Tsys for month of aug05.
• 03sep05     Updated system performance or aug05.
• 27aug05    the 16Khz comb at 327 Mhz is coming from the alfa motor controller.
• 25aug05    Testing the cal and measuring Tsys for mathews 430 dipole on ch.
• 17aug05    Fitting Tsys for alfa using data jan05 thru jul05.
• 14aug05    sband bistatic run pointing problems (17apr05 run)
• 11aug05   installed new cband cal values (measured 10jun05).
• 11aug05    updated system performance for jul05.
• 11aug05    added fractional occurence of rfi for july05
• 10aug05    Plot Tsys vs za by month for alfa. Added months mar,apr,may,jun,jul05.
• 08aug05    check performance of cband hi for thankins.
• 08aug05   17apr05: tension in tiedowns during sband run.
• 06aug05  p2030 alfa pulsar search sees large 12 second compression in the 01aug05 data (from faa radar).
• 19jul05    galfa pixels 4a,6a switched 11jul05 thru 19jul05
• 13jul05    power levels drift/jump in pixel2b of galfa spectrometer.
• 11jul05    alfa: replacing pixel 4a fiber receiver makes 174Khz ripple go away.
• 07jul05   fiber tests show that 174Khz ripple comes from the fiber receiver.
• 06jul05    fractional occurence of rfi for jun05
• 01jul05    sbn receiver warms up during sband radar run.
• 25jun05    td 12 releases after lightning strike.
• 23jun05   lbw resonance polA at 1400 Mhz
• 21jun05    lbw cals measured 01jun05 after polB cal cable fixed.
• 12jun05    1428Mhz birdie in alfa 18may05 to 23may05.
• 10jun05    alfa beammaps from spider scans (on 3c138 taken jan05)
• 09jun05    time for sband dewar to cool down.
• 07jun05    16 khz comb in the 327Mhz receiver.
• 05jun05    wapp fits file usage.. updated to look at all 3 discs..
• 05jun05    updated a2010 (alfalfa) monitor data for month of may05.
• 03jun05    time for lbw dewar to cool down.
• 02jun05    fractional occurrence of rfi for may05
• 31may05    weekly report of problems started.. 25may05
• 31may05    galfa pixel4a,6a were switched (before 02may05 until 31may05)
• 30may05    distomat 4 loses power 6pm. ac filter at input to canister burns up...
• 28may05    lbw stokes calibration. included date on  4 more sources jul04-apr05.
• 26may05    alfa pixel4a still has 173Khz ripple with amp of .09K.
• 20may05    monitor disc usage by project in the wapp spectral line disc directory.
• 19may05    discrete gain jumps and a1.2 hz crosshead oscillation in the lbw gain.
• 09may05    comparing lbw, alfa performance at OH with the 10db amps in.
• 07may05    added p2030 user project page.
• 07may05    p2030 pulsar data feb05 thru apr05 shows aerostat compression with new amps.
• 05may05    modeling the periods created by the aerostat radar.
• 05may05    put aerostat radar info in one page
• 02may05    fractional occurence of rfi for apr05.
• 02may05    updated system performance for apr05.
• 19apr05    drifting of the wapp clocks (ntp off)
• 19apr05    ntpd time jumps on the wapps when pulsar search p2030 run.
• 12apr05   a2010 1 second total power vs position in strip for apr05.
• 11apr05    p2030 pulsar data shows compression with new rf amps and wapps not starting together.
• 08apr05    a2010 drift scan data (apr05) with new amp in pix2 show radar compression.
• 06apr05    a2010 monitoring. add data for apr05.
• 06apr05    10db gain amp placed in front of alfa pixel2a,b mixer.
• 05apr05    fractional occurence of rfi for mar05
• 04apr05    Gain stability of the alfa system using a2010 drift scan data.
• 04apr05      updated system performance for mar05
• 02apr05    Comparing the system performace of alfa and lbw at oh frequencies.
• 30mar05    faa 1350 radar harmonics appear in  alfa surveys.
• 29mar05    data taken 18nov04 show 1400Mhz birdies in distomats 3,4.
• 24mar05    1430 Mhz birdie in alfa pixel0b.
• 17mar05    430 linefeed gain curve.
• 17mar05    430 linefeed calibration page added.
• 17mar05    pointing model 16 for the carriage house made and installed.
• 14mar05    include 430 ch in system performance plots.
• 13mar05    updated platform temperature measurements from 2000 through feb05.
• 10mar05     TsysA/TsysB ratio for alfa.. added plots vs ra,dec,l, and b.
• 08mar05    TsysA/TsysB ratio for alfa spectral wapp data. 01nov04 thru 28feb05.
• 08mar05    description of computing tsys from the tsys archive.
• 05mar05    fractional occurence of rfi for feb05 updated.
• 04mar05    updated system performance for feb05
• 04mar05    alfa pwr jumps  (a2010,a1963), slow recovery from faa radar. Problem not in downstairs iflo.
• 01mar05    327 receiver gain curves for data taken mar03 to feb05.
• 01mar05    327 system performance for data used to fit the gain curves.
• 27feb05    26feb05: punta salinas radar does not stay in mode A
• 18feb040     lband multibeam system. Show rotation rate vs parallactic angle and maximum integration times.
• 6feb05  how much does the az/za move if we drift in J2000 coordinates.
• 16feb05    hpbw vs lamda for all receivers. data taken 2004.
• 15feb05    fractional occurrence of rfi  oct,nov,dec04,jan05. Cleaned up alfa plots. Thanks to mmd.
• 13feb05    hi frequency system performance after reflectors adjusted.
• 04feb05    dome cam limit switch replaced with switch/strikers. New limits measured.
• 03feb05    td12 moves erratically and then goes into foldback.
• 02feb05    updated system performance thru 31jan05
• 02feb05  fractional occurence of rfi for jan05
• 31jan05    Single pol/board wapp spectral line observing only provides 1 pol.
• 24jan05    For tsys monitoring, included plots for TsysPolA - TsysPolB
• 23jan05    recomputed sysperformance for alfa using the new cal values.
• 23jan05    plots of alfa Tcal vs frequency. Data taken 30sep04.
• 21jan05    look at cb,cbh,xb gain before and after reflector adjustments.
• 18jan05    distomat failures, include plots az vs za,and az vs hour of day.
• 18jan05    The 60Mhz harmonic birdie put to rest...
• 11jan05    430 mapping project a1731. Variation of Tsys.
• 11jan05    430 Mhz TsysPolA-TsyspolB drifting for 2003, 2004.
• 06jan05    updated 29nov04 alfa rotation angle to fix pointing error in computation. new angle 1.55 deg.
• 05jan05    updated system performance for dec04. (now includes alfa).

2004   (top)
• 14dec04    drifting 60 Mhz birdie seen at 60 Mhz in the dome with a spectrum analyzer
• 12dec04   fractional occurence of rfi for nov04.
• 10dec04   updated system performance plots for nov04.
• 12dev04    Calibration scans with alfa, rotation angle offset, and beammaps (a first pass).
• 01dec04    Look at how the fits header locations are computed.
• 23nov04    9186Mhz birdie at xband coming from oscillation in sbw dewar.
• 22nov04    proj a1552.. cordrift. Negative ghost of galaxy in strip caused by bandpass correction.
• 20nov04    19nov04 data shows 60Mhz birdie is coming from the dewar monitoring system.
• 20nov04    18nov04 data: 60Mhz harmonics jump ever 2.67 seconds (1 ms data with wapps).
• 19nov04    12nov04 data: 60 Mhz birdies are coming thru
• 18nov04    1367/1382 radar birdies were punta salinas with chn 18 left on.
• 16nov04    tiedown 4 trouble with power supply and then motor overspeed.
• 12nov04    azimuth dependence of faa radar using alfa and 64 usec dumps.
• 08nov04    fractional occurence of rfi for oct04.
• 07nov04    28oct04 data shows lband drifting birdies  seen at lband and 430 Mhz.
• 07nov04    system performance plots for oct04.
• 06nov04    FCC rules for broad band over power lines access (oct04)
• 06nov04    FCC reallocation of the 1390,1430,1670,2385 Mhz bands (dec01)
• 03nov04    galfa spectrometer time stamp stability.
• 01nov04    spider scan (cima) positions updated so all strips pass thru center of source.
• 31oct04    alfa precursor a1956. driftchase pattern position errors from 21oct04.
• 20oct04    alfa precursor a1956. Test data taken 28sep04. Positions start of scan off.
• 17oct04    sbn 1.2 hz oscillation in polB. same frequency as the dewar refrig.
• 09oct04    430 Mhz filter in front of dewar removes the tv intermods.
• 09oct04    fractional occurence of rfi for sept04
• 09oct04    updated system performance for sep04
• 07oct04    updated alfa jumping from radar. Pulsar data  shows it is the faa radar.
• 07oct04    punta salinas, faa, and aerostat radars total power vs time using alfa.
• 29sep04    cband polA oscillations and Tsys jumping around.
• 27sep04    radar is causing the total power in some alfa beams to increase.
• 24sep04    checking the ra,dec J2000 coordinates in the header after the 16sep04 changes.
• 22sep04    mathew's 430 test feed performance after lowering it 3 feet.
• 21sep04    Phase delay needed in the line feed for focusing of the ao dish.
• 17sep04    wind speed and platform oscillation frequencies for tropical storm jeanne.
• 14sep04    a1946 alfa drift scans. Jumps in the total power 06sep04.
• 13sep04    cross scans on 3c286 using Jmathews test feed on the carriage house.
• 12sep04    cal values for lband wide measured 06aug04, installed 12sep04.
• 11sep04    added sbw to plot off gain vs freq,za for all receivers.
• 10sep04     installed sbw gain curve for data taken 15may04 - 01sep04.
• 10sep04    created sbw calibration page
• 10sep04    a description of the gain curves used at ao.
• 08sep04    1380 Mhz Birdie in pixel 0b of alfa data.
• 08sep04    174 khz ripple in alfa pixel4a data as seen by wapps and galfa.
• 07sep04    carl heiles' notes on the galfa spectrometer.
• 02sep04    proj a1946,alfa month of aug. Check that brds have consistent hdr info and that time steps are 1 sec between records.
• 01sep04    updated sysperformance for aug04
• 01sep04    Tsys alfa using cal on/offs from aug04.
• 27aug04   the stability of the async cal mode of cima.
• 25aug04    updated the alfa pixel numbering drawing to be correct.
• 22aug04    a1946 drift scan thru a source. data timestamp ok, rotation angle ok (this page updated 27aug04).
• 22aug04    a1946 cross scans after beam order changed.
• 20aug04    a1946 alfa precursor proposal. data taken 19aug04 (cross scans).
• 16aug04    calibration scans with alfa at 1665 Mhz.
• 13aug04    dome vibrations while moving at slew rate at low za.
• 10aug04    measuring the alfa calvalues at 1665 Mhz using sky and absorber.
• 09aug04    fractional occurence of rfi for jul04.
• 08aug04    updated system performance for jul04.
• 02aug04     ripples in lbw near 1390 and 1400 Mhz (a1861:may04,a1914:aug04).
• 01aug04   faa radar compression of the alfa system.
• 20jul04    updated sbw system performance to new cal diode values.
• 18jul04    measured sbw cal values using sky and absorber.
• 13jul04    fractional occurrence of rfi for jun04
• 08jul04    Using mean,median, and robust averge to remove Tsys in cormapping routines.
• 04jul04   updated system performance thru jun04.
• 03jul04    updated gain curves all receivers with new sbh fit
• 03jul04    sbh gain curves from feb04 thru jun04 data.
• 03jul04    sbh system performance used to compute gain curves feb04-jun04
• 02jul04    1400 Mhz birdie coming from 100Mhz distribution/wapps in control room building.
• 01jul04    azimuth swing looking at 1400 Mhz birdies with high spectral resolution.
• 30jun04    added high freq resolution dynamic spectra of 1374 Mhz birdie.
• 29jun04    distomat birdies (30may04) still present after communications changed from copper to fiber.
• 28jun04    lbw polB cal jumps on 23apr04
• 22jun04    drifting birdies in lb system with 60 Mhz spacing.
• 21jun04    summary of 430 Mhz birdies may/jun04 compiled by chris salter.
• 17jun04    xband performance above 10Ghz.
• 17jun04   extend xband cal value vs freq plot to 12.3 ghz.
• 10jun04    added fractional occurence of rfi for may04
• 05jun04    pointing error as we lose tension in the tiedowns.
• 04jun04    added system performance for may04
• 29may04    added fractional occurence rfi for apr04
• 28may04    1374.495 Mhz birdie (a1861).
• 28may04    1400 Mhz birdie (a1861).
• 27may04    started list of monitor data that is backed up.
• 23may04   Compare az,za model offsets with horn survey.
• 23may04    the az,za model offsets for the "other" receivers relative to sbn from model15.
• 18may04    aas plots for jagadheep
• 15may04    pointing model 15
• 13may04    updated tiedown 4 limit switch positions after jack replaced.
• 09may04    results of the 08may04 horn survey.
• 08may04    added blurb on turret encoder.
• 04may04    Alfa Tsys measured using the old iflo system.
• 04may04    alfa cal values measured in the lab.
• 03may04    horn survey(02may04)  after moving the horns.
• 01may04    surveying the tertiary (01may04)
• 29apr04    horn survey results 28apr04.
• 27apr04    resonance in alfa receiver at 1537.7 Mhz.
• 26apr04    Alfa Tsys/Tcal using the old iflo system.
• 12apr04    computing alfa wedge position on the floor.
• 09apr04    quick look lbw performance after kevlar cable tensioning.
• 07apr04    rcvr system performance thru 01apr04
• 07apr04    fractional occurence of rfi for feb04
• 27mar04    xband gain curves mar03 thru sep03
• 18mar04    xband tsys vs frequency.
• 18mar04    installed new cal values for xband receiver.
• 14mar04    new cal values for sband high..
• 14mar04    added description on controlling the gregorian cals...
• 14mar04    moved cal values from home page to a page of its own.
• 10mar04    sbh gain curve fit using data taken 15may03 thru 30sep03
• 10mar04    system performance sbh for gain curve dataset.
• 09mar04    sbn gain curve fit using data taken 01mar03 thru 29feb04
• 09mar04    system performance sbn for gain curve dataset.
• 08mar04    cband gain curves using data from may03 thru feb04.
• 08mar04    system performance cband may03 thru feb04. data used for gain fit.
• 08mar04    rcvr system performance thru 29feb04  (cband hi now included).
• 08mar04    fractional occurence of rfi for feb04
• 04mar04    looking at the alfa rf/if processor using a noise source.
• 29feb04    fit gain curve to cbh feb04 calibration data.
• 27feb04    notes to myself.. computing Trcvr.
• 25feb04    distomat failure vs az,za
• 25feb04   platform corner height vs za, torque. Will ALFA be a problem??
• 23feb04    looking at 6.7 ghz masers with the cband high receiver.
• 23feb04    added cbh to tsys monitoring output.
• 18feb04    updated sysperformance page thru 01feb04.
• 18feb04    corrected parallactic angle picture.
• 17feb04    tsys vs frequency for cband hi.
• 17feb04    a first look at the rfi in the cband hi receiver band.
• 16feb04   (on-off)/off on 3C454.3 covering the entire cbhi band.
• 16feb04    a first look at cband high calibration.
• 15feb04    update the horn survey page to include the 11feb04 and 14feb04 horn theodolite surveys.
• 12feb04    atod , signal conditioning board description for turret.
• 01feb04    fractional occurence of rfi for jan04
• 25jan04    computed gain curve for xband oct05 to 25jan03.
• 25jan04    moving the 327 receiver on the turret floor.
• 25jan04    moving the xband receiver on the turret floor.
• 24jan04    moving the 610 Mhz rcvr to a new turret position.
• 06jan04    1422.5 Mhz birdie from channel 54 transmitter.
• 05jan04    defining the sign of the pointing error for turret and calib scans.
• 02jan04    updated system performance thru 31dec03
• 02jan04    fractional occurence of rfi for dec03

2003   (top)
• 15dec03    updated system performance thru 15dec03.
• 15dec03   fractional occurence of rfi for nov03.
• 12dec03    sband transmitter page. Include TTI module i/o usage.
• 04dec03    372Khz comb in 327 rcvr from sbTx console in dome.
• 02dec03    372Khz comb in 327 rcvr coming from inside the SbandTx room.
• 25nov03    372Khz comb in 327 rcvr.
• 12nov03    fractional occurrence of rfi for oct03.
• 12nov03    weight distribution on the turret rotary floor.
• 09nov03    updated system performance for oct03.
• 02nov03    updated gain curve page to include new lbw curve.
• 02nov03    lbw gain curves computed using data from mar03 thru sep03.
• 30oct03   1417.5 birdie from color camera 5 in the dome.
• 30oct03    added az,gr,ch limits to little know facts
• 21oct03    Reflector survey 2 (oct01) added normal errors along north/south direction.
• 19oct03    Reflector survey 2 (oct01) results.
• 15oct03   azimuth encoder jump 14oct03.
• 14oct03    1289.7 Mhz radar (punta salinas??)
• 12oct03    time stability of the iridium signal.
• 10oct03    sband wide cal values from 15aug03 data.
• 05oct03    updated system performance for month of sept03
• 05oct03    add fractional occurrence of rfi for sept.
• 25sep03    theodolite survey results from jul03.
• 24sep03    first holography outputs from aips (via slava).
• 17sep03    xband: resonances in receiver.
• 14sep03   xband: compare sefd new and old horn
• 14sep03    Compare xband TsysB/TsysB using cals and source.
• 14sep03   Tsys vs frquency for xband before, after new horn.
• 10sep03    added fractional occurence of rfi for august
• 10sep03    increasing the isolation for iflo monitor port 1a.
• 10sep03    added tsys ascii output description on tsys mon page.
• 08sep03    updated system performance for month of august.
• 02sep03    added routine arch_getmap() to input a cormap from the data archive.
• 01sep03    holography,plots of phase vs time,za , correction at the peaks.
• 23aug03    a1659 sband hi CH ons only. Example of processing this type of data.
• 12aug03    bs116b vlba holography run. telescope offsets for each pattern.
• 07aug03    system performance. reran data 01mar03 to aug03 with new flux fits.
• 05aug03   added fractional occurence of rfi for july.
• 31jul03    430 dome birdies with 20 Mhz filter installed.
• 28jul03    added tiedown page and failure log.
• 21jul03   xb pointing offsets from calibration runs
• 21jul03    new xb cal values installed (sky/absorber measurements)
• 17jul03   ri glitches in digitizer Q1.
• 13jul03    compare kildal and german cortes horns on lbw.
• 02jul03    added fractional occurence of rfi for jun03
• 02jul03    updated system performance page thru 30jun03
• 01jul03    alfa IF tested 15may03 using lbw receiver.
• 01jul03    az swings looking at polarized Tsys with sbh.
• 27jun03    start collecting rfi birdies in a list by freq.
• 27jun03    collect various rfi az spins together for comparison.
• 27jun03   az spin with 430 Mhz birdies. tv station intermods.
• 25jun03    recomputed lbn gain curves for sep01 thru 20aug02.
• 04jun03    fractional occurence of rfi for may03.
• 03jun03    xband. polb variations for a1704 recomb lines.
• 01jun03    system performance updated thru 31may03. lbn,lbw,sbw,sbh,cb,xb.
• 29may03    added correlator drifts for data thru 27may03
• 20may03    system performance cband. 01apr03 to 04may03 (after cals updated).
• 19may03    lbw stokes (new lbw) src:B1040+123,B1228+307,B2121+248
• 18may03    cband cal values measured 16may03 installed.
• 18may03   cband cal values 22apr03 to 04may03 installed.
• 17may03   updated links for "using idl to process spectral line data"
• 15may03    resonances in the sbh receiver.
• 14may03    sband high cals recalibrated.
• 09may03    added corsavbysrc for idl automated on/off processing.
• 08apr03    .3 kelvin polarized tsys vs az,za using lbw.
• 07apr03    fractional occurence of rfi for apr03
• 06may03   lbw 1290,1350 radars. 1ms detect. show rotation drift and compression.
• 04may03    system performance 430 dome.
• 04may03    system performance lbw. x102 runs 02may03
• 04may03   system performance 327 rcvr.
• 03may03    system performance 610 rcvr.
• 02may03    system performance.  sbn mar03 to may03
• 02may03    system performance. xband apr02 to feb03.
• 02may03    system performance.  lbw mar03 to may03
• 01may03   added system performance page. Started with lbn,lbw,sbn,cb,xb.
• 29apr03    IFLO compression by the FAA 1350/1330 radars using lbw,lbn.
• 28apr03    dewar temperatures. year to date is now being updated for new data.
• 27apr03    lbn system performance 01sep01 thru 20aug02 (with updated calvalues).
• 23apr03   poor isolation in the downstairs iflo buffer amplifier monitor ports.
• 22apr03    sefd vs for lbw using 3C138
• 17apr03    resonances in the new lbw receiver.
• 13apr03    az,zenith angle dependence of 1350,1290, and aerostat radars.
• 09mar03   fractional occurence of rfi for mar03
• 07apr03    slow drift in gain of sbc1 polB in interim correlator.
• 06apr03    radar power in the downstairs iflo.
• 31mar03    creating harmonics in an amplifier.
• 26mar03    tv station power from hilltop monitoring. 1998 to current date.
• 20mar03    galfa talk on rfi.
• 15mar03    pitch,roll model from 28feb03 tilt sensor run (after dome move).
• 15mar03    tilt sensor results from 28feb03 run (after dome move) uncalibrated..
• 14mar03   jumps in interim correlator sbc 2 power levels.
• 08mar03    fractional occurence of rfi feb03
• 07mar03    finished model14. included variogram, verifying model, other rcvr offsets.
• 07mar03    added model offsets each rcvr to turret page.
• 05mar03    pointing model14 results.
• 04mar03   turret room temps for feb03
• 02mar03   Compare focus curves before after dome move.
• 02mar03    focus curve  28feb03 after the dome move.
• 27feb03    lbw gain curves 21nov02 to 17feb03 after old lbw phase center was moved.
• 27feb03    lbw system performance after the old lbw phase center was changed.
• 27feb03    1371,1387.2 radar..
• 22feb03    compare focus curves taken after 01dec02.