Monitoring A2010 (alfalfa) data

last month added: oct12

Sections:

Intro
How the data is processed
Median power for each strip (the system stability).
The 1 second total power samples by strip
The electronic gain change versus turret room temperature:

SEE ALSO: monitoring alfa stability using TsysPolA/TsysPolB
 


Intro

    A2010 is the alfa drift scan survey. It does 600 second drift scans with a 100 MHz bandwidth centered at 1385 MHz. Each of these scans is called a strip. At the end of a strip the cal is fired. The observations are done close to the meridian. At the end of each month all of the strips taken during the month are processed and plots are generated showing:


How the data is processed: (top)

    A2010 does 600 second drift scans sampling at 1 hz. It takes a 100 MHz bandwidth centered at 1385 MHz and uses 3 level sampling. Each 600 second drift is a single scan or strip. After each drift scan a 1 second cal is fired and then the process repeats. For the drift scans the telescope is positioned at the meridian. The za position is set once a day. Between each drift scan a small correction is made to remain close the the J2000 declination.The processing of the drift scan data for monitoring is:
  1. compute the rms/mean by channel for n secs (600) seconds worth of data. There must be a cal record in the file for the file to be processed.
  2. Do a robust linear fit to the rms/mean by channel throwing out outliers. The remaining channels will be the mask used to compute the total power for each spectra of the 600 seconds (and the cal).
  3. compute the  total power (mean) for each 1 second record using the above mask.
  4. Over the entire strip compute the median of the total power using the data from 4.
  5. Compute the cal scale factor : calK/(calOn-calOff). For the cal off use the last record of the strip (the one before the cal on). If the next strip starts within 6 seconds of the cal record, include  the first record of that strip for the calOff. If there are two cal offs,  interpolate their total power to the cal On time (if not, just use the single cal off.
  6. Scale the total power data (from 4) to kelvins using the cal scale factor.
  7. Save the following to disc (one save file per day). assume there are NstripsTot total strips:
Note that the daily save files are done by ast date so they may include data from 2 different observing runs.

The save files can be input and merged using inpsav.pro. This routine creates one large array of tpI structs. It only takes strips that have 600 seconds worth of data.


Median power for each strip. The system stability: (top)


    For each month the median power, calscale factor, and Tsys are plotted for each strip taken. The four sets of plots are:

2012  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  sep12.ps.pdf
sep12.ps.pdf
sep12.ps.pdf
sep12.ps.pdf
  oct12.ps.pdf
oct12.ps.pdf
oct12.ps.pdf
oct12.ps.pdf

2011  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  jan11.ps.pdf
jan11.ps.pdf
jan11.ps.pdf
jan11.ps.pdf
  feb11.ps.pdf
feb11.ps.pdf
feb11.ps.pdf
feb11.ps.pdf
  mar11.ps.pdf
mar11.ps.pdf
mar11.ps.pdf
mar11.ps.pdf
  apr11.ps.pdf
apr11.ps.pdf
apr11.ps.pdf
apr11.ps.pdf
  sep11.ps.pdf
sep11.ps.pdf
sep11.ps.pdf
sep11.ps.pdf
  oct11.ps.pdf
oct11.ps.pdf
oct11.ps.pdf
oct11.ps.pdf
  nov11.ps.pdf
nov11.ps.pdf
nov11.ps.pdf
nov11.ps.pdf
notes 2011:
2010  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  jan10.ps.pdf
jan10.ps.pdf
jan10.ps.pdf
jan10.ps.pdf
  mar10.ps.pdf
mar10.ps.pdf
mar10.ps.pdf
mar10.ps.pdf
  apr10.ps.pdf
apr10.ps.pdf
apr10.ps.pdf
apr10.ps.pdf
  may10.ps.pdf
may10.ps.pdf
may10.ps.pdf
may10.ps.pdf
  aug10.ps.pdf
aug10.ps.pdf
aug10.ps.pdf
aug10.ps.pdf
  sep10.ps.pdf
sep10.ps.pdf
sep10.ps.pdf
sep10.ps.pdf
  oct10.ps.pdf
oct10.ps.pdf
oct10.ps.pdf
oct10.ps.pdf
  nov10.ps.pdf
nov10.ps.pdf
nov10.ps.pdf
nov10.ps.pdf
  dec10.ps.pdf
dec10.ps.pdf
dec10.ps.pdf
dec10.ps.pdf
notes 2010:
2009  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  jan09.ps.pdf
jan09.ps.pdf
jan09.ps.pdf
jan09.ps.pdf
  feb09.ps.pdf
feb09.ps.pdf
feb09.ps.pdf
feb09.ps.pdf
  mar09.ps.pdf
mar09.ps.pdf
mar09.ps.pdf
mar09.ps.pdf
  apr09.ps.pdf
apr09.ps.pdf
apr09.ps.pdf
apr09.ps.pdf
  may09.ps.pdf
may09.ps.pdf
may09.ps.pdf
may09.ps.pdf
  aug09.ps.pdf
aug09.ps.pdf
aug09.ps.pdf
aug09.ps.pdf
  sep09.ps.pdf
sep09.ps.pdf
sep09.ps.pdf
sep09.ps.pdf
  nov09.ps.pdf
nov09.ps.pdf
nov09.ps.pdf
nov09.ps.pdf
  dec09.ps.pdf
dec09.ps.pdf
dec09.ps.pdf
dec09.ps.pdf
notes 2009:
2008  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  jan08.ps.pdf
jan08.ps.pdf
jan08.ps.pdf
jan08.ps.pdf
  feb08.ps.pdf
feb08.ps.pdf
feb08.ps.pdf
feb08.ps.pdf
  mar08.ps.pdf
mar08.ps.pdf
mar08.ps.pdf
mar08.ps.pdf
  apr08.ps.pdf
apr08.ps.pdf
apr08.ps.pdf
apr08.ps.pdf
  may08.ps.pdf
may08.ps.pdf
may08.ps.pdf
may08.ps.pdf
  aug08.ps.pdf
aug08.ps.pdf
aug08.ps.pdf
aug08.ps.pdf
  sep08.ps.pdf
sep08.ps.pdf
sep08.ps.pdf
sep08.ps.pdf
  oct08.ps.pdf
oct08.ps.pdf
oct08.ps.pdf
oct08.ps.pdf
  nov08.ps.pdf
nov08.ps.pdf
nov08.ps.pdf
nov08.ps.pdf
notes 2008:
2007  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
  jan07.ps.pdf
jan07.ps.pdf
jan07.ps.pdf
jan07.ps.pdf
  feb07.ps.pdf
feb07.ps.pdf
feb07.ps.pdf
feb07.ps.pdf
  mar07.ps.pdf
mar07.ps.pdf
mar07.ps.pdf
mar07.ps.pdf
  apr07.ps.pdf
apr07.ps.pdf
apr07.ps.pdf
apr07.ps.pdf
notes 2007:
 
2006  Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
 jan06.ps.pdf
jan06.ps.pdf
jan06.ps.pdf
jan06.ps.pdf
 feb06.ps.pdf
feb06.ps.pdf
feb06.ps.pdf
feb06.ps.pdf
 mar06.ps.pdf
mar06.ps.pdf
mar06.ps.pdf
mar06.ps.pdf
 apr06.ps.pdf
apr06.ps.pdf
apr06.ps.pdf
apr06.ps.pdf
 may06.ps.pdf
may06.ps.pdf
may06.ps.pdf
may06.ps.pdf
 jun06.ps.pdf
jun06.ps.pdf
jun06.ps.pdf
jun06.ps.pdf
 jul06.ps.pdf
jul06.ps.pdf
jul06.ps.pdf
jul06.ps.pdf
 aug06.ps.pdf
aug06.ps.pdf
aug06.ps.pdf
aug06.ps.pdf
 sep06.ps.pdf
sep06.ps.pdf
sep06.ps.pdf
sep06.ps.pdf
 oct06.ps.pdf
oct06.ps.pdf
oct06.ps.pdf
oct06.ps.pdf
 nov06.ps.pdf
nov06.ps.pdf
nov06.ps.pdf
nov06.ps.pdf
 dec06.ps.pdf
dec06.ps.pdf
dec06.ps.pdf
dec06.ps.pdf

 
2005 Median pwr, CalScaleFactor, and Tsys for strips
stripPwr vs 
Date
stripPwr vs
stripNumber
calSclFactor vs
stripNumber
medianTsys vs
stripNumber
 feb05.ps.pdf
feb05.ps.pdf
feb05.ps.pdf
feb05.ps.pdf
 apr05.ps.pdf
apr05.ps.pdf
apr05.ps.pdf
apr05.ps.pdf
 may05.ps.pdf
may05.ps.pdf
may05.ps.pdf
may05.ps.pdf
 jun05.ps.pdf
jun05.ps.pdf
jun05.ps.pdf
jun05.ps.pdf
 jul05.ps.pdf
jul05.ps.pdf
jul05.ps.pdf
jul05.ps.pdf
 aug05.ps.pdf
aug05.ps.pdf
aug05.ps.pdf
aug05.ps.pdf
 sep05.ps.pdf
sep05.ps.pdf
sep05.ps.pdf
sep05.ps.pdf
 oct05.ps.pdf
oct05.ps.pdf
oct05.ps.pdf
oct05.ps.pdf
 nov05.ps.pdf
nov05.ps.pdf
nov05.ps.pdf
nov05.ps.pdf
 dec05.ps.pdf
dec05.ps.pdf
dec05.ps.pdf
dec05.ps.pdf
processing: usr/a2010/mondata/compwr_do, pltcals_do


1 second total power samples vs position in strip  (top)

    The 1 second total power for a strip versus sample number of the strip are plotted for the first 10 strips of each day  ( days start at AST midnite).  Each link has 10 pages with each page holding 1 strip. The top plot on a page  is polA and the bottom plot is polB. The 7 pixels are color coded and offset for display. Black (at the bottom) is pixel 0, red pixel1, green pixel 2, etc.. These units are Tsys.  The median power value for each strip is also printed on at the page with  units of measured/optimum power (linear scale). The files are .pdf .
     Rfi has been removed from the total power computation by excluding channels with large rms/mean. 5 channels adjacent to any rfi channels are also excluded.
    You can see sources drifting through the beams.  Occasionally  there are jumps in power with  long recovery times. These are being caused by the FAA radar in our system.
 
2012 1 second total power by strip
sep
10sep12 12sep12 13sep12 15sep12 16sep12 17sep12 18sep12
19sep12 20sep12 21sep12 22sep12 23sep12 24sep12 25sep12
26sep12 27sep12 28sep12 29sep12 30sep12
oct
01oct12 05oct12 06oct12 07oct12 08oct12 09oct12 10oct12
11oct12 12oct12 13oct12 14oct12 19oct12 20oct12 21oct12
22oct12 23oct12 24oct12 25oct12 26oct12
notes: 2012
 
2011 1 second total power by strip
jan
08jan11 09jan11 10jan11 17jan11 18jan11 19jan11 24jan11
30jan11 31jan11
feb
01feb11 05feb11 06feb11 09feb11 10feb11 12feb11 13feb11
14feb11 15feb11 16feb11 17feb11 18feb11 19feb11 20feb11
21feb11 22feb11 23feb11 24feb11 25feb11 26feb11 27feb11
28feb11
mar
01mar11 02mar11 03mar11 04mar11 05mar11 06mar11 07mar11
08mar11 09mar11 10mar11 12mar11 13mar11 14mar11 19mar11
20mar11 21mar11
apr
18apr11 19apr11
sep
09sep11 10sep11 12sep11 13sep11 15sep11 16sep11 17sep11
18sep11 19sep11 20sep11 21sep11 23sep11 24sep11 25sep11
26sep11 27sep11 28sep11 29sep11 30sep11
oct
01oct11 02oct11 03oct11 04oct11 05oct11 06oct11 07oct11
16oct11 17oct11 18oct11
nov
21nov11 22nov11 24nov11 25nov11 26nov11 27nov11
notes: 2011

2010 1 second total power by strip
jan
11jan10 12jan10 13jan10
mar
17mar10 18mar10 19mar10 20mar10 21mar10 22mar10 23mar10
24mar10 25mar10 26mar10 27mar10 28mar10 29mar10 30mar10
31mar10
apr
01apr10 02apr10 03apr10 04apr10 05apr10 06apr10 07apr10
08apr10 09apr10 10apr10 11apr10 15apr10 16apr10 17apr10
18apr10 19apr10 20apr10 21apr10 22apr10 23apr10 24apr10
25apr10 26apr10 27apr10 28apr10 29apr10 30apr10
may
01may10 02may10 03may10 04may10 05may10 06may10
aug
17aug10 18aug10 19aug10 20aug10 21aug10 22aug10 23aug10
24aug10 26aug10 27aug10 28aug10 29aug10 30aug10
sep
03sep10 05sep10 06sep10 07sep10 09sep10 10sep10 12sep10
13sep10 14sep10 15sep10 16sep10 17sep10 18sep10 19sep10
20sep10 21sep10 22sep10 23sep10 24sep10 25sep10 26sep10
27sep10 28sep10 29sep10
oct
09oct10 10oct10 12oct10 13oct10
nov
23nov10 24nov10 25nov10 26nov10
dec
28dec10 29dec10
notes: 2010

 
2009 1 second total power by strip
jan
03jan09 04jan09 05jan09 06jan09 07jan09 08jan09 09jan09
10jan09 11jan09 12jan09 13jan09 14jan09 19jan09 20jan09
21jan09 31jan09
feb
01feb09 02feb09 03feb09 04feb09 06feb09 07feb09 08feb09
09feb09 14feb09 15feb09 16feb09 17feb09 18feb09 19feb09
20feb09 21feb09 22feb09 28feb09
mar
01mar09 02mar09 03mar09 04mar09 05mar09 06mar09 13mar09
14mar09 15mar09 16mar09 17mar09 18mar09 30mar09 31mar09
apr
01apr09 07apr09 08apr09 09apr09 10apr09 11apr09 12apr09
13apr09 14apr09 15apr09 16apr09 17apr09 18apr09 19apr09
20apr09 21apr09 22apr09 23apr09 29apr09 30apr09
may
01may09
aug
14aug09 16aug09 17aug09 18aug09 19aug09 20aug09 21aug09
22aug09 23aug09 28aug09 29aug09 30aug09 31aug09
sep
01sep09 02sep09 03sep09 04sep09 05sep09 06sep09 07sep09
08sep09 09sep09 10sep09 11sep09 12sep09 13sep09
nov
04nov09 05nov09 06nov09 07nov09 10nov09 11nov09 12nov09
13nov09 17nov09 18nov09 19nov09 20nov09 21nov09 22nov09
23nov09 24nov09 25nov09 26nov09 27nov09 28nov09 29nov09
30nov09
dec
15dec09 16dec09
notes: 2009
 
2008 1 second total power by strip
jan
13jan08 14jan08
feb
28feb08 29feb08
mar
01mar08 02mar08 03mar08 04mar08 05mar08 06mar08 07mar08
11mar08 12mar08 13mar08 14mar08 15mar08 16mar08 17mar08
18mar08 19mar08 20mar08 21mar08 22mar08 23mar08 24mar08
25mar08 26mar08 27mar08 28mar08 29mar08 30mar08 31mar08
apr
01apr08 02apr08 03apr08 04apr08 15apr08 16apr08 17apr08
18apr08 19apr08 24apr08 25apr08 26apr08 27apr08 28apr08
29apr08 30apr08
may
01may08 02may08 03may08 04may08 05may08 09may08 10may08
11may08 12may08 13may08 14may08 15may08 16may08 17may08
21may08 22may08 23may08 24may08 25may08 26may08 27may08
28may08 29may08 30may08 31may08
aug
14aug08 15aug08 16aug08 17aug08 18aug08 19aug08 20aug08
21aug08 22aug08 23aug08 24aug08 25aug08 26aug08 27aug08
28aug08 29aug08
sep
02sep08 03sep08 04sep08 05sep08 06sep08 07sep08 08sep08
10sep08 11sep08 12sep08 13sep08 14sep08 19sep08 20sep08
21sep08 22sep08 23sep08
oct
02oct08 03oct08 04oct08 05oct08 06oct08 07oct08 08oct08
09oct08 10oct08 11oct08 12oct08 13oct08 14oct08 15oct08
16oct08 17oct08 18oct08 19oct08 20oct08 21oct08 22oct08
23oct08 24oct08 25oct08 26oct08 27oct08 28oct08 31oct08
nov
01nov08 02nov08 03nov08 04nov08 05nov08
notes: 2008
 
2007 1 second total power by strip
jan
11jan07 12jan07 13jan07 14jan07 30jan07 31jan07
feb
08feb07 09feb07 10feb07 11feb07 12feb07 13feb07 14feb07
15feb07 17feb07 19feb07 20feb07 21feb07 22feb07 23feb07
24feb07 25feb07 26feb07 27feb07 28feb07
mar
01mar07 02mar07 03mar07 06mar07 07mar07 08mar07 18mar07
19mar07 20mar07 21mar07 22mar07 23mar07 26mar07 27mar07
28mar07 29mar07 30mar07
apr
01apr07 02apr07 03apr07 04apr07



 
 
2006 1 second total power by strip
jan
04jan06 05jan06 06jan06 07jan06 08jan06 10jan06 11jan06
16jan06 17jan06 18jan06 19jan06 20jan06
feb
15feb06 16feb06 17feb06 18feb06 19feb06 22feb06 23feb06
24feb06 25feb06 26feb06 27feb06 28feb06
mar
01mar06 02mar06 03mar06 04mar06 05mar06 06mar06 07mar06
08mar06 09mar06 10mar06 11mar06 12mar06 13mar06 14mar06
15mar06 16mar06 17mar06 18mar06 20mar06 21mar06 22mar06
23mar06 24mar06 25mar06 26mar06 27mar06 28mar06 29mar06
apr
03apr06 04apr06 05apr06 06apr06 07apr06 08apr06 09apr06
10apr06 11apr06 12apr06 13apr06 14apr06 15apr06 16apr06
18apr06 19apr06 20apr06 22apr06 23apr06 26apr06 27apr06
28apr06
may
16may06 17may06 22may06 23may06 24may06 25may06 26may06
27may06
jun
02jun06 03jun06 04jun06 07jun06 08jun06 09jun06 10jun06
11jun06 12jun06 13jun06 14jun06 15jun06 16jun06 19jun06
20jun06 21jun06 22jun06
jul
07jul06
aug
11aug06 12aug06 13aug06 14aug06 15aug06 16aug06 17aug06
18aug06 19aug06 20aug06 21aug06 22aug06 23aug06 24aug06
25aug06 31aug06
sep
01sep06 02sep06 03sep06 04sep06 05sep06 06sep06 07sep06
08sep06 09sep06 10sep06 11sep06 12sep06 13sep06 14sep06
15sep06 16sep06 17sep06 18sep06 19sep06 20sep06 26sep06
27sep06 28sep06 29sep06 30sep06
oct
01oct06 02oct06 06oct06 07oct06 08oct06 09oct06 10oct06
11oct06 12oct06 13oct06 14oct06 15oct06 16oct06 17oct06
18oct06 19oct06 20oct06 30oct06 31oct06
nov
01nov06 02nov06 03nov06 04nov06 05nov06 06nov06 07nov06
08nov06 09nov06 16nov06 22nov06 23nov06 24nov06 25nov06
26nov06 27nov06 28nov06 29nov06 30nov06
dec
01dec06 02dec06 05dec06 06dec06 07dec06 08dec06 09dec06
10dec06 11dec06 12dec06 13dec06 14dec06
notes 2006:
2005 1 second total power by strip
apr
02apr05 03apr05 04apr05 05apr05 06apr05 07apr05 11apr05
12apr05
may
09may05 04may05 05may05 06may05 07may05 08may05 09may05
10may05 11may05 12may05 13may05 14may05 18may05 19may05
20may05 21may05 22may05 23may05 24may05 25may05 26may05
27may05 28may05 31may05
jun
01jun05 02jun05 03jun05 04jun05 05jun05 07jun05 08jun05
09jun05 12jun05 17jun05 18jun05 19jun05

jul
06jul05 15jun05




aug
16aug05 17aug05 18aug05 19aug05 20aug05 22aug05 23aug05
26aug05 27aug05 28aug05 29aug05 30aug05 31aug05
sep
01sep05 02sep05 03sep05 04sep05 05sep05 06sep05 07sep05
12sep05 13sep05 14sep05 15sep05 16sep05 17sep05 18sep05
19sep05 20sep05 21sep05 26sep05 27sep05 28sep05 29sep05
30sep05
oct
01oct05 02oct05 03oct05 04oct05 05oct05 06oct05 08oct05
09oct05 17oct05 18oct05 19oct05 20oct05 21oct05 22oct05
23oct05 25oct05 26oct05 27oct05
nov
11nov05 13nov05 14nov05 15nov05 16nov05 20nov05 21nov05
22nov05 23nov05 24nov05 25nov05 26nov05 27nov05 28nov05
dec
04dec05 05dec05 06dec05 07dec05 08dec05 09dec05 10dec05
11dec05 12dec05 13dec05 14dec05 15dec05 16dec05 17dec05
18dec05 19dec05 20dec05 21dec05 22dec05 23dec05 24dec05
26dec05 27dec05




notes 2005:

processing: usr/a2010/mondata/montp_do


The electronic gain change versus turret room temperature:  (top)

    The median power of a strip (in correlator units) for feb/mar05 is plotted  versus the gregorian dome room temperature. Each strip is about 10 minutes. The cal is fired once per strip.

    The median power for each strip versus Room temp(.ps)   (.pdf):

processing: usr/a2010/mondata/temp.pro
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