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night-report-page---20130311

Observers: Nadia Blagorodnova, Matthew Nicholl, Simon Hodgkin

Sunset: UT 23:20 / Twilight 00:34 - 09:15 / Sunrise 10:29      LST 6-16hrs

Classification      Followup    Stds:     Tech probs

All times in this report approximate UT   (Chilean time currently UT - 3hrs)

EFOSC: All OBs in the 188.D-3003(Q)/VM/EFOSC2 directory on the observers OB Execution machine (wg5dhs)

On wg5dhs - OBs held in /home/visitor/p2pp-impex/nblago 

Phot std finders at http://www.eso.org/sci/observing/tools/standards/Landolt.html

Afternoon Calibrations

UT: 1424 - Bias runs - PESSTO_bias       (11 bias frames - execution time 6 mins)
UT: 1446 - Dome Flats and Spec Flats
UT: 1641 - HeAr Arcs

Planned Twilight Calibrations

UT: 2320  - no clouds - beautiful night

UT: 2324 - Sky Flats - PESSTO_SkyFF_eve_UBVRi-0  .. aborted after V - taking too long

UT: 2351 Focus on l745a

SCIENCE OBSERVATIONS (EFOSC2)

UT: 0011 - l745a - Spec flux std  - g11/13/16 with 1as slit (15m OB)

UT: 0031 -  FollowUp  LSQ12hot g13 (30m exp)

just a comment - lots of these follow-up OBs spend an awful lot of time on flats afterwards, for example this one has 4 flats which take 10 minutes ! Can we speed this up ? Brighter lamp ? Accept fewer exposures ? Fewer counts ? The manual states explicitly that they are needed for Gr#16, but not for the other gratings. However the templates for the follow-ups include them.


UT: 0110 - FollowUp LSQ12hxg (only 1 x 40min exposure)

UT: 0212 - FollowUp OGLE-2013-SN-019 now bumped up the list with GR#11 2 x 30 mins

comment: we offset the second exposure slightly towards the other galaxy (<1as) following a conversation with LW (Ogle) and blinking the difference and master cutouts.


UT: 0340 - Classification OGLE-18 (25m)

UT: 0408 - FollowUp SSS130304:114445-203141 (1h)

UT: 0510 - image analysis (we postponed it while observing at high airmass)

UT: 0535 - Classification PSNJ09271379-1931599 (12m)

UT: 0602 - Classification SSS130311:130508-375705

UT: 0615 - Switch to SOFI

SCIENCE OBSERVATIONS (SOFI)

UT: 0643 - FollowUp SN2012ca BG

UT: ~0810 - Hip044487 Telluric STD 

UT: 0828 - EG274 flux standard

UT: 0840 - Hip 084988 Telluric STD

UT: 0849 - FollowUp SN2012ca RG


UT: 1026 - End scientific observing : lost guiding due to bright sky.

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