INAF LBC+MODS queue observing, 2011 October 23-24

Observer: K. Boutsia, M. Fumana, P. Santini
Telescope Operator: G. Bechetti
Support Astronomer: O. Kuhn
Instrument: LBC

Summary

Clear skies in the afternoon. Very good seeing while observing with LBC (<0.9'') in the first half of the night. Most probably photometric.
We tried to switch to MODS but it didn't work (AO secondary), so we lost 2 hours and switched back to LBC.
We repeated some OBs done the previous nights which were out of specs. The seeing got a little worse (<1.2). It is also possible that the blue channel was not sending focus offsets.
Only LBC data for tonight - MODS was not available because of AO mirror problem.

Data Summary

Project Objects Filter ExpTime Notes
STD SA113 Bbess - Vbess / Ibess   4 positions - airmass 1.2
Clementini AndXXV Bbess - Vbess 1h 20min  
Clementini AndXXVII Bbess - Vbess 1h 20min  
STD Stetson_L92 Bbess - Vbess / Ibess   1 position - airmass 1.2
STD Stetson_L92 Bbess / Uspec - Vbess / Ibess   4 position - airmass 2.5
STD SA98 Bbess / Uspec - Vbess / Ibess   4 positions - airmass 1.3
Bragaglia NGC1817 Bbess - Vbess / Ibess 20min  
Bellazzini Sextans g-SLOAN - r-SLOAN 26min  
STD SA101 all filters   3 positions - airmass 1.54

Details

12:49 Slew for Test SkyFlats
  • BI 0 (3sec-1sec) scale 0.5 - B 35000 counts / I 30000 counts (01:07)
  • BI 180 (3sec-1sec) scale 1 - B 20000 counts / I 20000 counts (01:10)
  • UspV 180 (4.5sec-1sec) scale 10 - Usp 30000 counts / V 20000 counts (1:17)
  • V 0 (1sec) scale 20 and 50 but counts are low (9000counts) and stars show.

01:36 Slew to pointing star WT10_219
  • dofpia

01:51 lbcrangebal on WT10_219

01:55 Slew to SA113 for standard calibration (airmass=1.2)
  • dither in 4 positions

02:01 Slew to M31_AndXXV_400s_24
  • dofpia
  • the blue channel has a wrong seeing estimate and it does not correct sperical.
  • Olga has modified the code and we run dofpia again.

02:15 M31_AndXXV_400s_24
  • seeing measured on first images ~0.7(blue) ~0.8 (red)
  • seeing measured on images <0.9''
  • seeing measured on last images ~ 0.7 (blue) ~ 0.8(red)

02:38 Slew to M31_AndXXVII_400s_24
  • dofpia

02:42 M31_AndXXVII_400s_24.ob
  • seeing measured on first images ~0.7 (blue) ~ 0.7 (red)
  • seeing measured on images <0.67 (blue) ~0.72 (red)

03:05 Slew to M31_AndXXV_400s_5
  • dofpia

03:08 M31_AndXXV_400s_5.ob
  • seeing measured on first images ~0.72 (blue) <0.77 (red)
  • seeing measured on images ~0.72 (blue) <0.83 (red)
  • seeing measured on last images <0.77 (blue) ~0.8-0.9 (red)

03:32 Slew to M31_AndXXVII_400s_5
  • dofpia

03:35 M31_AndXXVII_400s_5.ob
  • seeing measured on first images <0.81 (blue) ~0.67 (red)
  • seeing measured on images <0.77 (blue) ~0.74 (red)
  • seeing measured on last images <0.77 (blue) <0.79 (red)

03:59 Slew to M31_AndXXV_400s_17
  • dofpia

04:02 M31_AndXXV_400s_17.ob
  • seeing measured on first images ~0.7 (blue) <0.83 (red)
  • seeing measured on images ~0.74 (blue) ~0.68 (red)
  • seeing measured on last images ~0.79 (blue) <0.81 (red)

04:26 Slew to M31_AndXXVII_400s_17
  • dofpia

04:30 M31_AndXXVII_400s_17.ob
  • seeing measured on first images <0.83 (blue) <0.79 (red)
  • seeing measured on images <0.77 (blue) <0.79 (red)
  • seeing measured on last images <0.81 (blue) ~0.74 (red)

04:55 Slew to M31_AndXXV_400s_18
  • dofpia

04:59 M31_AndXXV_400s_18.ob
  • seeing measured on first images <0.81 (blue) <0.79 (red)
  • seeing measured on images ~0.79 (blue) ~0.77 (red)
  • seeing measured on last images ~0.9 (blue) ~0.79 (red)

05:22 Slew to M31_AndXXVII_400s_18
  • dofpia

05:26 M31_AndXXVII_400s_18.ob
  • seeing measured on first images ~0.9 (blue) ~0.81 (red)
  • seeing measured on last images ~0.9 (blue) ~0.8 (red)

05:49 Slew to Stetson_L92 (airmass 1.18)

05:56 SWITCH TO MODS
  • While turning OFF the LBC we got an error
(RED Channel) one or more systems failed:
(FILTERS) hardware failure!
LogAnalyzer
motion return error (out: ) [src/filters/filters.c:1687] 
filters system encountered a problem 
  • Error while trying to move the swing arm for MODS configuration * The AO secondary also gave error.

07:09 MODS calibration files
  • Arc LS5x60x0.8 (001-003) (red and blue)
  • Arc LS5x60x0.6 (004-006) (red and blue)

  • VFlat LS5x60x0.8 (007-011) (red and blue)
  • Flat qth1LS5x60x0.8 Test (012) (red and blue)
  • Flat qth1LS5x60x0.8 (013-017) (red and blue)
  • Flat qth2LS5x60x0.8 (018-022) (red and blue)

  • Flat qth1LS60x5 Test (023-024)) (red and blue)
  • Abort switch again to LBC

08:05 SWITCH TO LBC

08:22 Slew to WT10_267 for pointing correction
  • preset cancelled
  • telescope slewed but not to the correct coordinates ... preset cancelled again
  • send preset 3rd time...
  • dofpia
  • correct pointing (lbcrangebal)

08:35 Slew to ngc1817
  • dofpia

08:40 ngc1817.ob
  • seeing measured on images <0.67 (blue) ~0.72 (red)

08:57 LBC error
  • (RED Channel) OB execution error:
  • (CAMERA) RPC Client/Host communication failed!

08:59 TURN OFF LBC
  • (RED Channel) one or more systems failed:
  • (CAMERA) RPC Client/Host communication failed!
  • TURN ON

09:06 LBC is ON
  • continue previous OB: no need to start the OB from the beginning
  • one out of 3 images with 5 sec exposure is missing, but this entire OB was already observed two nights ago (although sky was not photometric)

09:13 Slew to ngc1817
  • dofpia
  • since ngc1817 is visible until the end of the night we first observe one more OB of runs 16.A and 16.B to have better seeing

09:17 Slew to M31_AndXXV_400s_1
  • program is finished, but since we have time we run one more OB to have better seeing
  • dofpia (09:20)

09:23 M31_AndXXV_400s_1
  • seeing measured on first images <0.86 (blue) <0.83 (red)
  • seeing measured on images <0.86 (blue) <0.95 (red)
  • seeing measured on last images <0.81 (blue) <0.92 (red)
  • airmass=1.4-1.45

09:46 Slew to M31_AndXXVII_400s_1
  • program is finished, but since we have time we run one more OB to have better seeing
  • dofpia

09:49 M31_AndXXVII_400s_1
  • seeing measured on first images <0.86 (blue) ~0.83 (red)
  • seeing measured on images <0.97 (blue) <0.9 (red) * seeing measured on last images <1.13 (blue) <0.92 (red)
  • airmass=1.45-1.6

10:12 Standard star Stetson_L92_1
  • dithering 4 positions
  • airmass ~ 2.5

10:23 Standard star SA98_B_VI
  • dithering 4 positions

10:37 ngc1817short
  • dofpia

10:49 ngc1817short
  • seeing measured on first images ~0.85 (blue) ~0.67 (red)

10:57 N2419_1.ob
  • dofpia

11:05 N2419_1.ob
  • seeing measured on first images ~0.90 (blue) ~0.74 (red)
  • seeing measured later ~1. (blue) ~0.65 (red)

11:23 N2419_6.ob
  • dofpia

11:27 N2419_6.ob
  • seeing measured on first images ~ 0.88 (blue) ~ 0.81 (red)

11:38 Sextans_B_short.ob
  • dofpia

11:44 Sextans_B_short.ob
  • seeing measured on images ~1.13 (blue) ~1 (red)
  • both channels are slightly elongated, maybe because of the large airmass

11.49 Sextans_B
  • dofpia

11.54 Sextans_B
  • airmass~1.6
  • seeing measured on first images ~1.24 (blue) ~1 (red)
  • the blue image is slightly elongated, the red is not
  • seeing measured on first images ~1.24 (blue) ~1.13 (red)

12:23 SA101_AllFilters
  • airmass 1.54
  • 3 positions - the sky is getting too bright

12:38 Slew for flats
  • g-sloan-r-sloan PA (1sec each) PA 0 scale 4: 20000counts - 15000counts
  • g-sloan-r-sloan (1sec each) PA 180 scale 2: >15000counts - >11000counts
  • Uspec-Vbessel (3sec - 1sec ) PA 180 scale 2: >27000counts - >25000counts
  • Uspec-Vbessel (3sec - 1sec ) PA 0 scale 0.5: 34000counts - 33000counts
  • Uspec-Vbessel (3sec - 1sec ) PA 0 scale 0.5: 41000counts - 41000counts
  • Uspec-Vbessel (3sec - 1sec ) PA 0 scale 0.5: 55000counts - 57000counts

-- KonstantinaBoutsia - 24 Oct 2011
Topic revision: r8 - 26 Nov 2011, KonstantinaBoutsia
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