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night-report-page---20130312

Observers: Simon Hodgkin, Nadia Blagorodnova, Matthew Nicholl

Sunset: UT 23:19 / Twilight 00:32 - 09:16 / 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


SCIENCE OBSERVATIONS (SOFI)

UT: 2330 Focusing etc -> Preliminary Seeing measurement ~0.6 as

UT: 2351 - FollowUp OGLE-2012-SN-006 03:33:34 -74:23:40 (45m) finished at 0033

UT: 0035 Image Analysis

UT: 0115 - FollowUp OGLE2013-SN-016 05:13:52.78 -60:09:26.9 (45m)  [error no guide star in catalogue, skipped preset and repeated OB, then found guide star manually ... didn't work. Blago cleverly found and turned off the preset option in the OB... Also the guide probe got stuck in the way and made a shadow on the detector. Lost a bit of time here]  . Seeing 0.8 arcseconds. Recognise the field - but no obvious supernova...

UT: 0200 - FollowUp SN2013ai 06:16:18 -21:22:32 (25m)

UT: 0216 - FollowUp SN2013K 17:39:31 -85:18:38 (45m)


UT: 0315 Switch to  EFOSC


SCIENCE OBSERVATIONS (EFOSC2)

UT: 0345 FollowUp SN2013ai g13 (2x20 min)

UT: 0439 Flux STD LTT3864 (15 min) - seeing 0.7 arcsecs

UT: 0500 Classify SSS130304  (11 min) - looks fairly featureless ! Or is it bad S:N ?

UT: 0527 Classify SSS130311_111518 (11min) - -- looks like a dwarf nova

UT: 0550 Classify PSNJ1153 (11min) - no finder - used astrometry on acquisition image to be sure - 1c around peak

UT: 0612 FollowUP LSQ13fn 11:51:17 -29:36:41 (2x40m *2 = 2h 40m)

UT: 0916 Classification SSS130312:140859-165709 (600s)

Note a by-eye transient detection right next to the main one in the acquisition image ! Nicknamed Hodgkin2013a (by Hodgkin). However blinking the two acquisition images shows it is clearly moving. Also noticed the ecliptic latitude is ~-3 degrees. The presence of this object made the field a little harder to identify than it should have been. We didn't take a spectrum of the mover.

After-observing note: The moving object in the acquisition image (nicknamed as Hodgkin2013a) is a known asteroid: 2000 WP55, of 17.3 mag in V.

UT: 0935 Flux STD EG131 (15 min)

UT: 0951 Classify CSS130305: 154128+304350 (900s) - Ran out of time - sky too bright - no spectrum visible

Beautiful clear morning again



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