Topics

Pre installation:

Sources
ip addresses
arduino cal ctrl
Equipment,receiver weights
byu documentation
What we did:

• summary of each day
• Details for each day
  

results

Sources:

• Sources Table of some stronger sources
  
• Complete source list. ra,dec, flux as well as rise, set times
  

byu19 jun/aug 2010

Places to look on disc:

• x101/ao19/  .. has memos notes from prior to aug13 observation.
  
• x101/projects/ao19/    copied by projects/byu/..
• has byuazza, and some idl code.
• /share/obs4/usr/x101/src/*ao19*  .. has command files and program logs.
• /share/olcor/corfile.xxx   has interim cor data when connected to ao port. also has time, az,za for some patterns when byu system connected.
• log files for byuazza.log  was in /tmp/byuazza.log on megs3.. but it got rebooted before i moved the file so we lost this.
  

Pre installation:

• 27jun13: system layout on floor (.pdf)
  
• 20jun13: weight being added to the turret floor
  
• 05jun13: draft schedule for jul13 (.pdf)
  
• 05jun13: gant chart for jul13 tests (.pdf)
• 20mar13: ao19 mount on turret floor (.pdf)
  

Sources:  (top)

• catalog codes:
• N nvss.
•  flux is at 1400 MHz,
  
• coordinates are J2000
• maj,min are major minor axis in asecs
  
• C
•  ao calibrator file .
  
• flux is at 1600 MHz
• The source name links are nvss images of the source at 1405 Mhz.
• The images are +/- 7.5 amin, ra increases to left , dec increases up
  

at least a double...
16 51 11.70 +04 59 19.0 23Jy
16 51  3.85 +04 59 41.9 11.1 Jy
16 51  4.94 +04 59 42.3  8.5 Jy

Source ra,dec, flux and AST rise times  (top)

• ra,dec for sources
• Shows the ra,dec JcoordinateSystem  flux(Jy) and comments for sources to use. The is normally at 1400Mhz unless otherwise specified in the comments
• AST rise times for source (jul13 run) (.txt)
• Shows the AST (local arecibo) rise time ,and tracking time (minutes)  for the sources (using za=19.69 degrees.)
• The moon is at the bottom of the list. It has a rise,set time for each day (since it changes.)
• jpl horizons output for the when the moon is up at arecibo for the 26jul13->03aug13 (.txt)
• This was used to create the moon rise,set times. The time accuracy is 2 minutes.
• Note: the moon does not rise above el=70deg on 25jul13.
  
• Arecibo tracking time by declination (.pdf)
  

Ip addresses

The ip addresses, gateways to use:

• 192.65.176.1. observer computer in wapp room.Online Gateway for all byu/ao19  devices to use.
• Will enable them to talk to the cor online datatking computer
• 192.160.174.7  cor online datataking computer (in wapp room)
• This sends command to byuhost and the ao19 cal control.
  
• 192.65.176.160: byu host in transmitter room in dome
  
• listens on port 5010. cor computer will talk to it
  
• Will take to cor computer at : 192.160.174.7
• It is connected via a 1 gigabit link to doJ1331+305 133108.29  303032.96  j  14.5                3C286
  wnstairs.
  
• will the observer gateway be a problem for the high speed data xfer?
• 192.65.176.161: ao19gpib . this is the gpib computer in Cornell rack on rotary floor.
• It is used for monitoring of dewar info. Not needed for data acquistion.
  
• 192.65.176.162: ao19cal    . controls which dipole cal is enabled.
• Receives commands from cor.

arduino cal ctrl

    There is a cal multiplexor in the Cornell rack on the rotary floor. It selects which dipole will receiver the cal rf signal (from the noise diode)

• Luis's instructions on using the arduino cal (.pdf)
• Mapping digital outputs to caldipoles (.jpeg)
  
• 0 is the input
• 1-19 are the dipoles, 20 is spare

byu documentation

• richard's byu documentation (.pdf)
  

History of what we did: (top)

• Summary of each day:

• 25jul13: 09:00 to 02:15 am
• x102 runs for dipole 1 for gain and pointing
• 26jul13: 20:00 to 02:15
• toggle cals on sky, absorber
• x102 calibration runs
• 15x15 grid J2123+250 @1400 Mhz
• 27jul13: 21:15 to 22:15
• lowered dewar 1 inch for test
• x102 runs
• 28jul13: 22:00 to 03:00
• 15x15 grid B1843+098 @ 1400 Mhz
• 31x31 grid: J2014+235 started  (1,1) to ( 2,11) @1400 Mhz
• 15x15 grid: J2014+235 @ 1400 Mhz
• 31x31 grid: J2123+250 started (1,1) to (31,10) in two sections
• strip through weak source. J2229+238
• 29jul13: 21 to 22
• move dewar back up 1 inch
• x102 test to check after focus move.
• 30jul13: 05:00 to 09:00, 21:00 -> 03:00
• moon.
•  drive on,off moon, ao,byu, and lbw
• toggle diodes on,off each dipole while tracking moon.
• J0318+164  @ 1400 Mhz.
• configuration tests using on,off  continuum sources
  
• test different dipole,rcvr card combinations
• bypass parts of if/lo
• 15x15 grid: J2232+117 @1400 Mhz.
• 31jul13: 15:00 to 18:00
• unplug dewar pressure monitor
• on off continuum sources testing.
• bypass parts of rcvr
  
• dipoles, 1,12,9.
• 3C286 on,off dipoles 1 thru 19.
• 01aug13: 05:00 to 09:00
• moon on,offs.
• 02aug13: 05:00 to 09:00, 15:00 to 18:00, 21:00 to 03:00
• rearranged cables going into byu rack in xmter room.
• on,off continuum src J0521+166
• 15x15 grid: J0521+166 
• moon on,off
• skirt on tertiary
• freq scan ao J1143+221
• 5x5 grid M87
• 15x15 grid: J1330+251
• freq scan J1330+251
• on,off J1845+098 @ 1665 Mhz
• 15x15 grid B1843+098 @1665
• 31x31 grid: J2014+235 @ 1665 start
• 31x31  grid: J2232+117 @1400 Mhz
• 03aug13: 07:00 to 10:00
• on,offs J0603+219 @ 1400 and 1665 Mhz
• moon on,offs
• freq sweep J0603+219
• 04aug13: 09:30 to 12:30, 21:00 to 03:00
• dipole 17a damaged when cable reinserted in dewar.
• 31x31 grid: J2014+235 @ 1665 Mhz finished (started 02aug13)
• freq sweep B2128+048
• 31x31 grid: J2232+117 @ 1400 Mhz finished (started 02aug13)
• on,off galaxy

• Details for each day:
  

• 25jul13: thurs - 9:00 -> to 2:15 am (26jul13)
  
• installing.
  
• corfile.25jul13.x101.1 .. looks like some rfi scans.
• x102 runs dipole 1 for gain and pointing
  
• B1641+173 . start 20:55
  
• B1843+098 . 22:26
  
• B2120+168 . 00:19 (26jul13)
  
• 
  
• 26jul13: friday -> sat morning  (20:00 to 02:15 sat)
  
• toggle cals: on absorber, on sky sometime in afternoon.
  
• x102: 20:00 to 22:14
  
• B1607+268 18 patterns-4.47Jy
  
•  B1843+098- 6 patterns  4.77 Jy
  
• (see x102 log file: log.26jul13) for byulog..
• 15x15 grid : J2123.250. finished
  
• 1400 Mhz, 4 secs/pnt
• Rick fischer pointing correction not enabled. just gc offsets
• map extent 11.25  . step .75, offsteer 3
• (1,1) to (11,10) then byu timedout (1st cal: 2819, last 4183)
• this started on the morning of 27jul13)
  
• (12,10) to (15,15) 1st 4748,  last cal start 5494
• corfile.27jul13.x101.1ls *
  
• 27jul13 : saturday
  
• 17:00 lowered dewar 1 inch
• 21:15 - 22:15 x102 on sources. ao19ao, 1400 Mhz.
  
• B1756+134 - 6 patterns 2.36 Jy
  
• B1843+098 - 2 patterns  4.77 Jy
  
• 28jul13 22:00 0-> 03:00 (29jul13) (sun night to monday morning)
  
• corfile for all of below: corfile.29jul13.x101.0
  
• downshift 8 bit extraction for fft set to:
  
• 15x15 grid: .. B1843+098. completed
  
• 1400 Mhz. flux:4.77 Jy
  
• 4 secs/pnt
  
• .75 arcmin steps (11.25 amin extent)
• pos cal  before, after map (off_steer =3)
  
• forgot to turn on rick fischer correction. Just used the great circle dipole offsets.
• start times:
  

• measurement	start time (ast)
  cal1 Start	22:24:20
  row1 start	22:24:46
  calEnd  start	22:59:35

• enabled rick fischer correction byuH(fixazza)=1
  
• 31x31 grid: J2014+235 (1,1) to ( 2,11)  (azPnt,zaRow)
  
• 1400 Mhz, flux: 13.6 Jy, maj,min axis: 21,<14.8 asecs
  
• off_steer=3, 4 sec/pnt.
  
• map extent: 13Amin. step: 13/31. amin
• start times:

• measurement	start time (ast)
  cal1 Start	23:15:17
  row1 start	23:15:41
  2,11 (az,za row) st	23:54:26

  
  
• downshift 8 bit extraction for fft set to:
• 15x15 grid: J2014+235 completed
  
• 1400 Mhz, 13.6 Jy
• off_steer 3, 4 secs/pnt
• map extent: 13amin. step: 13./15.
• start times:

• measurement	start time (ast) (29jul13)
  cal1 Start	00:27:24
  row1 start	00:27:50
  calEnd  start	01:03:32

  
  
• 31x31 grid: J2123+250 (1,1) to (31,10) in two sections
  
• 1400 Mhz , 10.34 Jy, maj,min axis: 19,<13 asec
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./31.
• did 1,1 to 4,6 then aborted to check data
• restarted  4,1 to 23,1 then aborted
• ignore this, restarted on the wrong row
• restarted 4,6  @ 7629  thru 31,10  @8698.
  
• start times:

• measurement (az,za)	start time (ast) (29jul13)
  cal1 Start	01:10:34
  row1 start	01:11:00
  4,6 start	01:34:46
  4,1 to 23,1	ignore I restarted on wrong row
  4,6	02:07:09
  31,10	02:24:58

  
  
• 
  
• 
  
• strip through weak source. J2229+238. (corfile header still has J2123+250)
  
• 14 mJy from nvss
• srcName J2123p250 sent to BYU by mistake
• 40 secs per point
• off_steer =0
  
• 1.5 Amin step in az. 21 points +/- 15 amin
• The first attempt used 5 points (i aborted then started the 21 point strip)
  
• start times:

• measurement (az)	start time (ast) (29jul13)
  first pnt	02:46:44
  last pnt	03:02:04

• Corfile for above.. corfile.29jul13.x101.0
  
• 29jul13  (00 -> 03:00 ..see 28jul13)
  
• 17:00. moved dewar back up 1 inch to original position.
• 0 to 3am observing under 28jul13. no other datataking
• 21:06.. rfi check at 430 Mhz (442.5 lo2)
• 21:23.  x102 check  after dewar move.
• J1756+134
  


• 30jul13. 05:00 -> 9:00, 21:00 -> 03:00
• rfi checks using interim cor
• scans 321100167 -
  
• Moon:
• ao19 dipole 1 with interim correlator
• move off moon -1 deg za then drive onto and across the moon
• 6:40:35 start
  
• scan 321100175, 271 1 sec recs
• drive on moon at .02 dec/sec. drive off at .01 deg/sec.
• scan 321100176, 153 1 sec recs
• german increased lna bias to 3.05 volts
• drove thru moon then back on. 
• byu..moonOnsrc, moon off position (-1degza). 4 secs on each position. no corfile output.
  
• loop 5 times.
• times: 1st: (on,off) (7:05:33,7:06:09)
•           5th (on,off) (7:10:37, 7:11:13)
• toggle diode on,off for each dipole while tracking on the moon.
  
• used byucaldipole routine.
•  Uses a 19x2 map: 1..19 is dipole, 1..2 is diode on,off
  
• secsOn=4
•  
  

  dipole	startDiodeOn (hhmmss) ast		srcName
  1	7:14:29		MoonOnToggleDiode
  9	7:16:05
  10 started but hung up on diode off. so restarted map on row 10
  10	7:18:14		MoonOnRestart10
  19	7:20:02

  
  
• toggle diode on,off for each dipole while tracking 1 deg za off the moon
  
•  

  dipole	startDiodeOn (hhmmss) ast	srcName
  1	7:20:54	MoonOffToggleDiodes
  19	7:24:30

  
  
•  The cals were never worked very well. You could still use this as  moon on,off using the diode off values
• lbw on,off moon.
• onoffcal lbw off moon 10 sec
  
• calOn :321100179 start:26971 (7:29:31)
  
• calOff:321100180 start:26982
• drive across moon .01 deg/sec
  
• 225 1 sec recs
• scan 321100181
  
• 15x15 grid: J0318+164  (1,1) to (15,15)
• 1400 Mhz , 7.85jy
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./15
• finished map close to source set at za=19deg.
  
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	07:52:22 (28342)	321100182
row1 start	07:52:48 (28368)	321100183
cal2 Start	08:28:59 (30539)	321100408

• mvdata corfile.30jul13.x101.1
• rfi checks during maintenance during the day
  
• 9:15 rfi check
• mvdata x101.2
• 10:30 rfi checks 430 mhz
  
• mvdata x101.3
• 12->15: rfi check. left running 3 hours while up in dome testing rfi
• 21:00 -03:00 start nighttime
• 21:45 more rfi testing.
• scan 321100427 freq 1350,1370,1390,1410 on blank sky
• rec 476 amit turns off Cornell cpu, blue rack door closed
• rec 660 amet opens Cornell rack door
  
• scan 321100428 continue rfi monitoring
• blue rack (Cornell) is open.
• rec 602 pressure sensor cable to dewar disconnected at dewar
• rec 689 Cornell blue rack door closed .
  
• mvdata x101.5
• 22:42 on,off ?B1843+098 ao system. scan 321100429,430
• lsb for 8 bits is bit 6
• disconnect amp after noise source.. see if dipole 1 gets better
• onoff  using different dipoles and receiver cards.
•  When onoffcal was used with the ao sys it was 30 secs on,off
  
• when byupnts was used it was 4secs on ,off with .5 deg offset in az
• for ao tests don't use the reciever card. to look at different dipoles we switched the input to the ao coupler..
• 
  

  B1843+098 J1845	sys	scan1	dipole	rcvr card	time ast hhmmss (secMid)
  	ao	321100429,430	1	x	22:36
  	byu	321100433,434	1	1	23:03 (83029)
  	byu	435,436	1	?	23:09 (83367)
  	byu	437,438	14	?	23:19 (83930)
  	byu	439,440	15	1?	23:26 (84379)
  	byu	441,442	15	?	23:30 (84605)
  	ao	443,444 30sec on,off	1	x	23:31 (84702)
  	switch ao coupler to dipole 15
  	ao	445,446	15	x	23:34 (84871)
  	ao	447,448 449,450 za=19	15	x	23:47 (85662) 23:48 (85726.9) Probably no signal?
  J2014+235 13.6 Jy	ao	321200001	15	x	(805)
  	byu	321300003	15	15	(925)
  	switch ao coupler to dipole 12
  	byu	005,006	12	12	(2300)
  	ao	007,008	12	x	(2469)
  	vary msb 7,8,9 to see how things change
  	byu	009,010 msb=7	15	15	(4427)
  	byu	011,012 msb=8	15	15	(4663)
  	byu	013,014 msb=9	15	15	(4905)

  
  
• 15x15 grid: J2232+117  (1,1) to (15,15)
• 1400 Mhz ,
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./15
• finished map close to source set at za=19deg.
  
• start times:
• 
  

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	01:33:52 (5632)	321200015
row1 start	01:34:26 (5656)	321200016
cal2 Start	02:09:29 (7769)	321200241

• mvdata corfile.31jul13.x101.1
• 31aug13 (15:00 - 18:00)
• Pressure monitor cable is unplugged.
• scan 321200428 rfi checks 1350->1410 4 bands.
• mvdata corfile.31jul13.x101.2
• do some tests. cable swapping, other things.
• Use byupnts to do on ,offs. source: J1143+221
•  

  src	sys	scan	dipole	time ast hhmmss (secmid)
  J1143+221	byu	321200431,432	1
  	ao	433,434	1
  	Turn off noise switch in dewar. leave it off
  	ao	435,436	1
  	byu	437,438	1
  	bypass Cornell rack. dewar-> byu system, also bypass 15db atten use msb=6 for this measurement
  	byu	439,440	1
  	no change above measurement. go back to normal config (noise muxswitch remains off). set msb back to bit 8
  	byu	443,444	12
  3C286	byu	445,446	9	6074
  	ao	447,448	1	60858.
  	ao	449,450	1	60947
  	byu	451,452	1	60997 high yfactor?
  	set msb to bit 7
  	byu	453,454	1	61639 high yfactor?

  
  
•  3C286 byupnts 19 dipoles, off_steer = 3. byusystem
  
• go off source
• then move each dipole on source for 4 secs
• then go off source.
•  

  	scan	time (ast) secMidnite
  cal1	321200455	63310
  dipole 1	321200456	63345
  cal2	321200475	63599

  
  
•  mvdata corfile.31jul13.x101.3
  
• 01aug13 (05:00 to 09:00) moon
  
• rfi 4 boards scan 321300227. 274 1 sec recs. 1350-> 1410.
• mvdata corfile.01aug13.x101.1
• rfi 1 board then drive onto the moon. scan 321300228 . 534 1 sec recs.
• moon on,off  4 secs on, off, off is -1.5 deg in az
• Used source names MoonOn, MoonOff
  
•  

• 	sys	scan	time ast hhmmss (secMid)
  	ao	321300229,230	08:45:57 (31557 08:47:00 (31620)
  	byu	x	08:48:28 moonOn
  	byu	x	08:50:09 moonOn
  	byu	x	08:51:47

  
  
•  mvdata corfile.01aug13.x101.2

• 02aug13 friday  (5:00-9:00) , (15:00-18:00), (21:00-03:00)
• 05:00 - 10:00
  
• 05:54 am. rfi check for bands. 67 secs. scan 321400026.
• mvdata corfile.02aug13.x101.1
  
• 6:00 AM. rearranged some of the   bnc cables going into the top of the byu rack so they are in ascending order
• found bad power cable byu  black if/lo rack. rcvr card for 3b,4a
• J0521+166 on,off position switch using byupnts. dipole 1, 1400 Mhz.
• ao scan 321400027, on start 7:51:28 (28288
• byu scan 321400029, on start:  7:52:46 (28366)
  
• 15x15 grid: J0521+166  (1,1) to (15,15)
• 1400 Mhz ,
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./15
• started map around za=14.3 rising
  
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	08:02:50 (28970)	321400031
row1 start	08:03:23 (29003)	321400032
cal2 Start	08:39:26 (31166)	321400257

• moon on,off  4 secs on, off, off is -1.5 deg in az, or za
  
• Used source names MoonOn, MoonOff
  
•  

• sys	scan	time ast hhmmss (secMid)
  byu	x	08:51:35 moonOn, off is azstep
  byu	x	08:53:53 moonOn, off is zastep
  byu	x	08:51:47

• freq step testing.. off moon ao only, dipole 1
  
• scans 321400258->261,
  
• start 10:04:58
  
• 10 1 sec recs/scan. 1250,1350,1450,1550
• scans 321400262->266,
• start 10:28:05
  
•  60 1sec recs/scan, 1250,1350,1450,1550,1650
• mvdata corfile.02aug13.x101.2
• 15:00 start
• skirt installed on the tertiary
• src J1143+221. freq scan ao 1250 -> 1650 in 100 Mhz steps
• used byupnts, on,off src: 30secs on,off . 1250->1650 in 100 Mhz steps
  

• scan	freq
  321400270,271	1250,on,off
  321400272	1350,on
  ....
  321400278	1650,on

  
  
• 5x5 mapping grid M87.. byu
  
• each step 7.5 amin
• do 5  5 step strips with  off at end of each row
•  use M81_n  for name of each row in src name

• 	scan	time
  row 1 start	321400280	15:50:58 (57058)
  row 5 start	321400304	16:02:21 (57741)

  
  
• 15x15 grid: J1330+251  (1,1) to (15,15)
• skirt on tertiary.
  
• 1400 Mhz ,
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./15
• start times:

measurement	start time hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	16:14:58 (58498)	321400310
row1 start	16:15:31 (58531)	321400311
cal2 Start	16:50:53 (60653)	321400536

• src J1330+251. freq scan ao 1250 -> 1650 in 100 Mhz steps
• used onoff position switch routine. 60 secs on,off

• scan	freq	startOn ast hh:mm:ss
  321400542,543	1250 on,off	16:58:55
  321400544,545	1350 on,off
  ...
  321400550,551	1650 on,off	17:18:48

   
• 
  
• mvdata corfile.02aug13.x101.3
• 19:00-> 03:00 
• scan 321400552-321400554 rfi checks.. ok
• J1845+098 on,off at 1665 Mhz
• used byupnts, dipole 1, 4 secs/pnt
  
•  srcname for logfile: SRC=J1845+098_OnOff_1_1665Mhz

• sys	scan	time ast
  ao	321400555,556	21:50:59 (78659)
  byu	321400557,558	(78739)
  byu	321400559,560	(79616)

  
  
• 15x15 grid: B1843+098  (1,1) to (15,15)  at 1665 Mhz
  
• off_steer 3, 4secs/pnt
• srcName for logfile: SRC=J1845+098_1665Mhz
• map extent 13amin, step 13./15
• start times:

measurement	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	22:15:50 (80150)	321400561
row1 start	(80193)	321400562
cal2 Start	22:51:49 (82309)	321400787

• 31x31 grid: J2014+235 1665 Mhz (1,1) to (31,28)
• offsteer 3, 4 secs/pnt
•  1665 Mhz
  
• map extent 13amin, step 13./31
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	22:59:17(82757)	321400788
row(1.1)start	(82791)	321400789
row(31,28) start	00:55:32 (3332)	321500424

• 31x31  grid: J2232+117 @1400 Mhz   (1,1) to (31,19)
• 1400 Mhz
  
• off_steer 3, 4secs/pnt
• map extent 13amin, step 13./31
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
cal1 Start	01:07:11 (4031)	321500425
row(1,1)start	(4062)	321500426
row(31,19)	02:26:07 (8767)	321501014

• mvdata corfile.03aug13.x101.1

• 03aug13 (07:00-10:00),
  
• rfi check scan 321528532, 160  1 sec recs. ao. 07:55.
  
• J0603+219  (B0600+219) on,offs using byupnts
• offsteer=0, off position is 1.5 degrees.
  
• 4secs/pnt
• dipole 1
  

• sys	scan	freq	time
  ao	321528533,534	1400	08:54:47  (32087)
  byu	321528535,536	1400	08:56:05 (32165)
  ao	321528537,538	1665	08:58:49 (32329)
  byu	321528539,540	1665	09:00:07 (32407)

  
  
• moon on,offs
  
• 4secs/pnt
• dipole 1 center of moon
  

  • sys	scan,srcnm	off step	freq	time
    ao	321528541,542	az	1400	09:05:58 (32758)
    	321528543,544	za	1400	(32889)
    	321528545,546	az	1665	(33090)
    	321528547,548	za	1665	09:13:22 (33202)
    byu	MoonOn, MoonOff_azStp	az	1400	9:22:40, 9:23:25
    	MoonOn, MoonOff_zaStp	za	1400	9:24:22 9:25:12
    	MoonOn_1665Mhz MoonOff_azStp_1665Mhz	az	1665	9:26:58 9:27:47
    	MoonOn_1665Mhz MoonOff_zaStp_1665Mhz	za	1665	9:29:44 9:30:34

    
    
• J0603+219  (B0600+219) freq sweep ao: using onoff (posswitch). 1250-1650
  
• used onoff position switch routine. 60 secs on,off
• move off source to adjust power before each on,off pair
  

• scan	freq	startOn ast hh:mm:ss
  321528549,550	1250 on,off	09:54:34 (35674
  321528551,552	1350 on,off	(35903)
  ...
  321528557,558	1650 on,off	10:09:51 (36591

   
• 
  
• mvdata corfile.03aug13.x101.2
• 04aug13: (09:30 to 12:30), (21:00 to 03:00)    
• 09:30 to 12:30
  
• ??
• 21:00 to 0300
  
• all with lsb bit =7 
• i think jay switched the fpga code to use the full 8 bits (it had a 7 bit bug)
  
• checked cable order  by removing cables from dewar and watch signal come,go with byu system in spectrometer mode
• feed thru dipole 17a damaged when putting cables back on the dewar. fully tightening the cables causes signal to drop out. left it finger tight. one of the 4 leaves of the feed thru female had gotten pushed in to the center.
• rfi test scan 321600399. 69 1 sec recs,
• 31x31 grid: J2014+235 @ 1665 Mhz (1,29) to (31,31)]
• finish.rows 29 thru 31 started  02aug13
• offsteer 3, 4 secs/pnt
•  1665 Mhz
  
• map extent 13amin, step 13./31
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
row(1,29)	23:50:55 (85855)	321600400
row(31,31)	00:04:45 (285)	321700032
cal2	00:05:30 (330)	321700033

• B2128+048 freq sweep ao: using onoff (posswitch). 1250-1650
  
• used onoff position switch routine. 60 secs on,off
• move off source to adjust power before each on,off pair
  

• scan	freq	startOn ast hh:mm:ss
  321700034,035	1250 on,off	00:38:56 (2336)
  321700036,037	1350 on,off	00:42:44 (2564)
  321700044,045	1650 on,off	00:54:15 (3255)

   
  
• 31x31 grid: J2232+117 @ 1400 Mhz fnish (1,20) to (31,31)
  
• finish.rows 20 thru 31 started  02aug13
• offsteer 3, 4 secs/pnt
• map extent 13amin, step 13./31
• start times:

measurement (az,za)	start time  30jul13 hh:mm:ss (secMidnite) AST	ao scan number
row(1,20)	01:15:12 (4512)	321700045
row(31,31)	02:04:59 (7499)	321700415
cal2	02:05:44 (7544)	321700416

• Galaxy on,off.
  
• ra,dec: 231344 290028 vel  3674
• ao system
• 60 sec onoff
• 25 mhz bw.
• scan 321700417,418
  
• byu: there is a strip of 2 points integrate 60 secs, astep 60 secs
• used src=galaxy. i don't have notes about where we centered the byu band. maybe they have some notes.
  

20jun13 weight on rotary floor  (top)

    The weights on the turret floor for the jul13 experiment are:

    So we will be adding 102 lbs extra to the floor.

Other:

•  byu rack in transmitter room: 683  lbs  (no cables included). weighed in transmitter room
  
•  maybe 50lbs for cables
• 57" high (with castors), 21" wide, 35.75" deep
  
• 30amp circuit into box,. single phase.
  

results

• 03aug13. yfactor, sefd, and ratios on J0603+219 for 1400 and 1665 Mhz (.ps) (.pdf)
  

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