Observer: Laurent Le Guillou

Data reduction team: Sylvain Baumont, Yen-Chen Pan, Mark Sullivan.

Operators tried to fix several problems during the day: the electromechanical one with the azimuth axis, but also problems with shutter and filter wheels.

The plan was to observe with EFOSC2 for 1h30, then SOFI, then EFOSC2. But SOFI has a problem with its filter wheel, so only EFOSC2 was used during the night.

Log

Seeing ~ 1.1" (beginning of the night) then around 0.7"

EFOSC2

EFOSC2 bias + arcs / dome flats (partly) + skyflats UBVRi

 UT 00:39     STD vma2  gr11 + gr13 + gr16

 UT 01:31     SN2012dy  gr11

 UT 02:38     LSQ12gdj  gr11 + gr16

 UT 03:51     LSQ12hbx  gr13 (wrong object selected. Target has more or less disappeared!)

 UT 04:08     LSQ12hbx  gr13 (another try)

The target LSQ12hbx has clearly disappeared.

 UT 04:40     LSQ12hkd  gr13  *classification*  galaxy spectrum ?

 UT 05:11     LSQ12heq  gr13 *classification*  blue continuum ?

 UT 05:41     STD gd71  gr11 + gr13 + gr16

 UT 06:03     LSQ12hlz  gr13  *classification* SN Ia z=0.11 age=-5d (SNID)

 UT 06:33     LSQ12hmj  gr13 (aborted: nothing at these coordinates !!!)

 UT 06:55     LSQ12hlx  gr13 (very faint object there... is there really something ?)

No serious signal in the last one (LSQ12hlx)

 UT 07:47    LSQ12gxb  gr11

 UT 08:23    STD LTT3864

skyflats grz