INAF LBC+MODS queue observing, 2013 DATA SUMMARY January

Observer: M. Faccini, R. Speziali, F. Cusano
Telescope Operator: D. Gonzales-Huerta, G. Bechetti
Support Astronomer: M. Edwards, O. Kuhn
Instrument: LBC+MODS

January 10-11

Dome closed due to Clouds and Wind over 26m/s (weather forecasted snow 90%)

Project	Objects	Filter	ExpTime	Notes

January 11-12

Just few clouds at west horizon at sunset, sky is clear. Dewpoint at -16\xB0C and external temperature at - 15\xB0C
There is a difference about 12/13 degres between primary mirrors and external temperature
We have to wait changes in weather conditions.
After few hours the external temperature falls down to -19\xB0C, the mirrors temperature is still far from the external temperature. At 3:30 the TO decides to not open the dome for this night ( we are almost at -20\xB0C)

January 12-13

Dome CLOSED due to low temperature, almost -20\xB0C and difference between external and mirrors temperature, about 14\xB0C

January 13-14

Heavy clouds on some part of the sky at sunset. We open dome at 12:40UT.
External temperature is about -16 degres, difference between primary morrors temperature and external temperature is about 8 degres
Observation started with seeing 1.8"
We close the Dome due to technical problem and low temperature -17, the dome was stucked and we close the dome by "hands"

Project_RUN	Objects	Filter	ExpTime	Notes
13 A3-A4 Battaglia	LGS3	V and I	30'
27D Giallongo	CLJ0956+41	g and r	1h	some images elongated and with bad seeing

January 14-15

At sunset temperature is about -17/-18, clouds and few snow.
Weather seems variable as foreseen.
Last night problems with MODS still not solved, at 0:30 UT technicians are still working on LBC-red to solve the problem about winter position of the cameras.
at the beginning of the night the sky is clear and ext temperature is about -19/-20 at less than 1 degree from dewpoint temperature. We can not open the dome.
Around 7 UT temperature decrease to -17 and dewpoint is at -25, but we have snow on the roof. The Dome will remain close due to snow on the roof.

January 15-16

At sunset temperature is about -10, some cirrus far away, wind gust at ~ 15 to 23 m/s
Last nights problems with MODS still not solved
After opening the dome (03:15 UT) we have problems with focus, there is an intra focus on red channel. impossible to solve sending manual offset. Crew have to move the red camera manually.

Data Summary

Project_RUN	Objects	Filter	ExpTime	Notes
Giallondo 27D	CLJ0956+41	g-sloan, r-sloan	1.5h	Total integration time 3h,but 1.5h in the spec for the seeing
Sky flat		g-sloan, r-sloan
Standard	SA98	Us, Y, g, r

January 16-17

We had problems to focus the telescope at the beginning of the night (almost one hour lost), at the beginning of the night outside temperature 3-4 degree C while mirror temperature -4. Average seeing of the night 1 arcsec. We carried out the program Giallondo 27D and part of Grazian 30A.

Data Summary

Project_RUN	Objects	Filter	ExpTime	Notes
Giallondo 27D	CLJ0956+41	g-sloan,r-sloan	2h	total exposure time >2h, but some images were out of focus
Grazian 30A	GOODSN	STD-Uspec, r-sloan	2h	total exposure time >2h, but some images were out of focus
Standard	SA98	STD-Uspec,Y,g,r
Sky flats		V-Johnson, I-Johnson

January 19-20

Clear sky, seeing 0.8 arcsec, moon at the first quarter. We started with LBC. Problem at the beginning of the night, stars elongated in the blue channel, we tried to fix it manually (more than one hour), but it did not work. We switch to MODS.

Data Summary

Project_RUN	Objects	Filter	ExpTime	Notes
Annibali 23B	hd74377	Dual grating	2x1s	Lick standard COMPLETED
Annibali 23B	hd84937	Dual grating	1s	Lick standard COMPLETED
spectrophotometric standard	GD71	Dual grating	3x180s
spectrophotometric standard	Hiltner 600	Dual grating	3x60s
spectrophotometric standard	G191-B2B	Dual grating	3x90s
Annibali 23B	NGC4449	Mos dual grating	2h	science target
Fritz 4A	LensGG243	Mos dual grating	2h	science target COMPLETED
Annibali 23B	Feige66	Dual grating	1x120s
Gilli 18D	Feige66	Red grating	3x90s
Gilli 18D	cxoj12	Red grating	4x900s	science target;file 0058 wrong filter; 0059 correct filter but header wrong
Annibali 23B	hd160693	Dual grating	1s	Lick standard

January 20-21

At the beginning of the night thick clouds at the horizon, cirrus all over in the sky, moon 63% illumination, seeing 0.8. Starting with LBC. Problems with LBC, elongated stars in the blue channel. Trying to solve the problem. Mostly clear in the middle of the night. Switch to MODS.

Data Summary

Project_RUN	Objects	Filter	ExpTime	Notes
Annibali 23B	NGC 4449	dual grating	2h	science target COMPLETED
Annibali 23B	HD108177	dual grating	1s	Lick standard COMPLETED
Annibali 23B	Feige 66	dual grating		spec standard
Glli 18D	Feige 66	red grating		spec standard
Glli 18D	cxoj12	red grating	15m	science target COMPLETED
Annibali 23A	NGC 4449 Pn	dual grating	2h	science target

-- MarcoFaccini - 11 Jan 2013