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