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Q Band OOF results from Jan 8, 2008

Note: for contemporaneous Mustang results, goto this page

Q Band results (with Zernikes enabled) from TPAR_18 (Todd)

• scan 39 = 2008_01_08_07:03:19.fits
• scan 40 = 2008_01_08_07:08:56.fits
• scan 41 = 2008_01_08_07:14:33.fits (i.e. total time for 3 scans = 16.9 min)

Because these scans were taken in 'AzEl' mode rather than 'Encoder' mode, I had to compute azoff and eloff in post-processing. This included calculating precession from J2000 to the current epoch, annual aberration, and applying the refraction correction from the Antenna file. The diurnal aberration term was ignored as it is <= 0.3 arcsec. The resulting scan pattern is very nearly centered at (0,0). The buildoof2008.py script (attached below) will perform these corrections whenever it encounters data recorded in AzEl? mode. The fits on this page include up to 5th order Zernikes, to be consistent with the corresponding Mustang plots.

-- ToddHunter - 01 Feb 2008

• obsbeam-1.png:
  

• obsbeam-2.png:
  

• obsbeam-3.png:
  

• bestfitbeams-0.png:
  

• bestfitbeams-1.png:
  

• aperture-phase.png:
  

• comparison of Q-band phase map (with Zernikes enabled) and Mustang phase map (with Zernikes disabled):
  

Attachment:	Action:	Size:	Date:	Who:	Comment:
obsbeam-1.png	action	9246	01 Feb 2008 - 20:27	ToddHunter
obsbeam-2.png	action	7681	01 Feb 2008 - 20:29	ToddHunter
obsbeam-3.png	action	9687	01 Feb 2008 - 20:29	ToddHunter
bestfitbeams-0.png	action	6035	01 Feb 2008 - 20:33	ToddHunter
bestfitbeams-1.png	action	5481	01 Feb 2008 - 20:33	ToddHunter
bestfitbeams-2.png	action	6075	01 Feb 2008 - 20:33	ToddHunter
aperture-phase.png	action	14708	01 Feb 2008 - 20:33	ToddHunter
buildoof2008.py	action	17471	01 Feb 2008 - 20:35	ToddHunter	invocation: buildoof2008.qbuild20080108()
session.py	action	11274	01 Feb 2008 - 20:36	ToddHunter	precession, aberration calcs added for AzEl? mode
s39-l-db.fits	action	192960	01 Feb 2008 - 20:38	ToddHunter	debaselined FITS file
oof2.png	action	43645	04 Feb 2008 - 21:24	ToddHunter	comparison of 7mm and 3mm phase maps