++++ INAF LBC+LUCIFER queue observing, 2011 March 28 - 29

Observer: R. Speziali, L. Pentericci, K. Boutsia
Telescope Operator: G. Becchetti
Support Astronomer: O. Kuhn
Instrument: LBC - LUCIFER

Summary

Clear night with seeing <1.0'' - could be photometric
The Buttiglione program has been repeated and now it is within specs - completed
We had problems with Lucifer - first the compressor alarm went off and it was giving the INSTRUMENT CRITICAL error on the intrument panel
We were not able to center the HDF_K1 mask of Maiolino because the MOS ACQ routine was not giving the correct offsets

Data Summary

Project	Objects	Filter	ExpTime	Notes
Buttiglione	HATLAS	B-bessel, z-sloan	1.5h	seeing ~1.0'' - within specs this time
Grazian	EGS	U-spec, r-sloan	20min	seeing >1.2'' - OB Aborted
Gallerani	SDSSJ1048+4637_ref	210zJHK+Z	2hr	seeing measure on the image <1.0'' - Tell +ARC+FLAT
PHOT_STD	SA098	UsBg_rz
PHOT_STD	SA101	UsBg_rz

Details

Begin night with LBC

01:27 -Connect to LBT - 10Bias_Bino

• There is a gradient in the biases - red channel - left to right
• Biases taken with the dome open!!

01:56 - Skyflat

• Uspec - z : 2sec - 0.5sec PA=0
• Bbess - z : 1.1sec - 1sec PA=0
• Bbess - z : 3.3sec - 3.0 sec PA=180 e le ultime 2 esposizioni 6.6 sec e 6.0
• g-sloan - r-sloan : 5.0sec - 6.0 sec PA=180
• g-sloan - r-sloan : 15.0sec - 18.0 sec PA=0

02:25 - Slew to pointing star WT10_197 * dofpia before correcting pointing - almost converged - calculated seeing Blue 1.9/Red 0.97 - 1 deg tem difference for the mirrors * Pointing correction OK + mirror adjust OK with the new IRAF script lbcrangebal

02:41 - slew to PHOT_STD - SA098 dofpia,

• we manually gave positive Z22 at the left side because pupils looks fuzzy.
• it took us some time to converge but the results seems much better than yesterday.
• when started the exposure airmass of the standard is ~1.2
• dimm gives ~1.0'' seeing

03:13 - slew to Buttiglione_HATLAS_1 -dofpia

03:21 - observing target Buttiglione_HATLAS_1

• image quality much better
• seeing measured on the images is <1.0'' in both sides

04:05 - dofpia - 2 iterations to converge

04:09 - observing target Buttiglione_HATLAS_2

• seeing on the dimm 0.85''

04:52 - dofpia

04:56 - observing target Buttiglione_HATLAS_3

• seeing 0.9'' - 1.1''

05:39 - Slew to PHOT_STD - SA101 dofpia

• filters observed Uspec, Bbess, g-sloan_z-sloan, r-sloan

05:49 - Slew to Grazian EGS - dofpia

• it took 4 iterations to converge
• seeing seems to get worse - we are measuring ~1.2''

05:59 - grazian_EGS_UR_1

• OB aborted after 20 minutes because seeing is getting worse and images are out of spec
• dimm 1.2-1.3'' and seeing measured on the blue images is >1.3''

06:20 - SWITCH TO LUCIFER

06:55 - Slew to Gallerani SDSSJ1048+4637_ref for acq 0002-0005

• centering on the target and not the reference star

07:17 - SG9_spec_science_Z_3.txt 0006-0017

• seeing measured on the images <1.0''
• seeing on the dimm is variable 0.7''-1.2''

08:25 - SG9_spec_science_Z_4.txt 0018-0029

• first we made an Y-9.5'' offset to position object at the initial position
• seeing measured on the image 0.9''
• there is an alarm - INSTRUMENT CRITICAL! - on the instrument control GUI
• we go on with the OB

09:31 - Tell acq for Gallerani 0030-0033

09:41 - Telluric science script for Gallerani 0034-0036

• dimm seeing 1.2''

09:45 - Calib Unit IN

• ARC 0037-0040
• FLAT 0041-0052

09:55 - Finished with Calibration

• there is a compressor alarm
• bring telescope to zenith in order to manually reset the compressor alarm
• after 10 minutes they decide not to intervene - we can go on with the acquisition of the next field

10:04 - MOS acquisition for Maiolino HDF_K1 0053-0055

• the mask pin-holes look elongated and we INITIALIZE 0056
• the problem persists and we initialize again 0057
• the second time it was a bit better so we switch from N3.75 to N1.8 and then initialize for the 3rd time
• this times the pin-holes look sharp - we start all over again 0059-0061
• the MOS ACQ button gives almost 0.0 offsets
• we don't see the objects and we increase the exposure time to 25x6 0062-0067
• after the last MOS ACQ the upper object seems to be in the slit, but the bottom object seems to be offset - is there an error in calculating the rotation (??)

12:07 - twilight is passed and we still don't understand why the MOS ACQ does not calculate the correct offsets

• Olga is repeating the acquisition trying to figure out what went wrong 0068-0071

12:35 - EndofNight Script - DoDarks

-- KonstantinaBoutsia - 28 Mar 2011