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Observer : Morgan Fraser
Support team : Southampton (Mat Smith and others)
TAT : Joe Anderson, Cosimo Inserra
Start of night: Thin cirrus, 2 m/s wind, 65% humidity
Moon from 04.30 onwards at 45% illumination
End of night: Can't see any clouds at dawn, 5 m/s wind, 60% humidity
Seeing: Measured 1" in V at 01.15, subarcsecond for most of night.
Lost ~1hr total due to technical issue with rotator (not caused by going to zenith - this is
an intermittent fault which has started happening over the last couple of months).
Afternoon calibrations: SOFI arcs and specflats
23.10 Sunset
23.25 HIP 016853 (Telluric standard for PSNJ07361576-6930230 )
BG+RG
23.30 PSNJ07361576-6930230
SOFI JHK imaging, BG+RG spectra
00.23 End twilight
00.55 Switch to EFOSC
01.04 GD71 (standard)
01.21 Telescope error - system restated
01.29 OGLE-2015-SN-043
BVRi imaging, seeing ~1" at start of sequence
02.40 OGLE-2015-SN-035
Gr#13 2x1800s
Telescope error after first OB (03:17). Problem is connected to rotator, ESO are
aware of this as an intermittent issue, but do not know the cause yet.
04.10 PSNJ07361576-6930230
600s Gr#11,16
Calibration unit for internal flats did not move, TO had to insert manually.
04.49 PS15br
2x1500s Gr#16
05.56 LSQ15kp
2x1800s Gr#11 (taking Gr#16 later when target has passed zenith to avoid rotator limit)
07.06 - Second OB ended early after ~1700s due to telescope error (this was not due to
being too close to zenith - elevation was <80 deg when problem occured).
07.12 PSNJ14095513+1731556
2x1800s Gr#13
08.18 LSQ15kp
2x1800s Gr#16
09.21 Twilight
09.34 EG274 (standard)
09.47 LSQ15so
Gr#13 classification, Ia, z=0.07, a few days post max.
10.05 LSQ15st
Gr#13 classification, only got 300s as sky was getting brighter.
Ia, z=0.06, post max (best fitting templates are pre-max, but LC is clearly post-peak)
10.34 Sunrise (too bright for skyflats)
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