6 May 2015 UT: MODS2 Calibrations

LUCI2 Commissioning but weather poor and they are working with telescope at zenith/dome dark. Working toward obtaining a complete set of calibrations for MODS2. Slitless pixel flats and lamps taken for dual grating mode on 20150318.

Need to do:
-rw-r--r--. 1 modseng         1003 1185 Apr 26  2012 grlamps.cal DONE
-rw-r--r--. 1 modseng         1003 1010 Apr 26  2012 grlamps_b.cal
-rw-r--r--. 1 modseng         1003  808 Apr 26  2012 grlamps_r.cal

-rw-r--r--. 1 modseng         1003 1012 Jun 10  2012 grpixflats.cal DONE
-rw-r--r--. 1 modseng         1003  998 Jun 10  2012 grpixflats_b.cal
-rw-r--r--. 1 modseng         1003  629 Apr 26  2012 grpixflats_r.cal

-rw-r--r--. 1 modseng domain users 2348 Feb  7  2013 slitflats.cal
-rw-r--r--. 1 modseng domain users 1059 Feb  7  2013 slitflats_b.cal
-rw-r--r--. 1 modseng domain users  728 Feb  7  2013 slitflats_r.cal
-rw-r--r--. 1 modseng domain users 1059 Oct 30  2014 slitflat_5as.cal

-rw-r--r--. 1 modseng         1003 1375 Jun 10  2012 prflats.cal
-rw-r--r--. 1 modseng         1003  920 Jun 10  2012 prflats_b.cal
-rw-r--r--. 1 modseng         1003  585 Jun 10  2012 prflats_r.cal

-rw-r--r--. 1 modseng         1003  941 Jun 10  2012 prlamps_b.cal
-rw-r--r--. 1 modseng         1003 1148 Apr 30  2012 prlamps.cal
-rw-r--r--. 1 modseng         1003  824 Apr 26  2012 prlamps_r.cal

-rw-r--r--. 1 modseng domain users 1274 Nov 21 21:16 imflats.cal
-rw-r--r--. 1 modseng         1003  609 Apr 26  2012 imflats_b.cal
-rw-r--r--. 1 modseng         1003  449 Apr 26  2012 imflats_r.cal
-rw-r--r--. 1 modseng         1003  597 Apr 26  2012 imflat_u.cal

-rw-r--r--. 1 modseng         1003  900 Apr 26  2012 prmosflats.cal
-rw-r--r--. 1 modseng         1003 1171 Apr 26  2012 prmoslamps.cal

-rw-r--r--. 1 modseng         1003  616 Jun 11  2012 skyflat_ur.img
-rw-r--r--. 1 modseng         1003  553 Jun 11  2012 skyflat_ur_test.img
-rw-r--r--. 1 modseng         1003  395 Jun 11  2012 skyspec.obs

-rw-r--r--. 1 modseng         1003 1165 Apr 26  2012 grmosflats.cal
-rw-r--r--. 1 modseng         1003 1160 Apr 26  2012 grmoslamps.cal

-rw-r--r--. 1 modseng         1003  429 Aug 13  2012 bias3K.cal
-rw-r--r--. 1 modseng         1003  441 Aug 13  2012 bias8K.cal
-rw-r--r--. 1 modseng         1003  407 Aug 13  2012 prbias.cal

* Upper right quadrant on MODS2R is noisy:
  • See mods2r.20150506.0001.fits and mods2r.20150506.0002.fits
  • between 2 and 3, I ran modsSleep, and power cycled HEB_R.
  • 3 is again noisy, just like before.
  • further low-background images and biases all show elevated noise in upper right quadrant (quad 4). Similar bias levels, but stddev in 5x5 pixel box 20 counts in quad 4 vs 2-3 counts in quad 1-3. Gains from MODS1 are ~2.5 e/count (I am not sure whether they are similar for MODS2, though).

* image jumps on MODS2B:
  • sieveSnap 1 and 3 show this, 2 does not. Between 1 and 2, no configuration change. Between 2 and 3, disabled irlaser (modsSleep) and turned on and re-enabled it (modsWake).
  • sometimes no jumps. Reproduced jump by switching imaging (imcslock)->grating (no imcslock here)->imaging (imcslock). This is what was done between 21 and 22.

-- %USERSIG{OlgaKuhn - 2015-05-06}%

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Topic revision: r2 - 06 May 2015, OlgaKuhn
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