Night report 2017-08-21

Night was not photometric

Observers: Joe Lyman, David Homan

TAT: Morgan Fraser, Giorgos Leloudas

Support team: Giorgos Leloudas

Calibrations: EFOSC: bias, arcs, sky flats (i,R,V, and B partly)

SOFI: imaging and spectroscopic

Conditions: Clear start of night, seeing ~.7". Increased seeing to ~1.2" at 2:00, clouds moving in from the West. Around 4:00: ~0.5", rising back to 1.5" about 6:00.

(All times in UT)

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Sunset: 22:29

Twilight (dusk): 23:42

Twilight (dawn):09:50

Sunrise: 11:02

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UT Target Type Comment

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22:42 HIP09557 Telluric

23:10 PS17egl Follow Up SOFI BG; some time lost on acquisition

01:05 Hip100233 Telluric

01:15 EG274 Flux Standard

01:25 - - Switch to EFOSC + image analysis

01:55 ATLAS17jqo Classification g13, 1"; Blue continuum, Halpha at z=0, apparent feature at 6260AA due to cosmic

02:15 ATLAS17jqk Classification g13, 1"; Blue continuum, possibly galactic

02:35 AT2017fwm Follow Up g13 (1200s), 1"

03:05 AT2017gah Follow Up g11+16, 1"; aborted and restarted after erroneous acquisition (03:15)

04:00 ATLAS17jqb Classification g13, 1"; Blue continuum, Balmer emission lines at z=0

04:20 ATLAS17jqj Classification g13, 1"; type Ia SN, around peak

04:35 PS17ecn Classification g13, 1"; type Ib SN, timing uncertain; target brighter than light curve would suggest

05:00 PS17eca Classification Non detection

05:00 PS17eal Classification Non detection

05:23 PS17ebd Classification g13, 1"; AGN (around type 1.5) at z=0.355

05:54 AT2017gax Follow Up g11+16, 1"

06:25 AT2017gax Follow Up R imaging; seeing too high

06:40 AT2016jbu Follow Up g11 (1800s) 1.5", and g16 (2x1800s) 1.5"

08:45 PS17ebj Classification g13, 1"; type Ia SN, post peak

09:08 AT2017gci Follow Up g13, 1.5"

09:40 VMA2 Standard