Night report 2017-08-30

Observers: David Homan, Joe Lyman

TAT: Joe Anderson

Support team: Lluís Galbany

Calibrations: biases, dome arcs+flats

Conditions: cloudy at start, largely dispersing by 01:00 but then returning for 2nd half of night; seeing erratic, mainly around 1.5"

Non-detections of ATLAS17jyf, jym and jyn

UT Target Type Comment

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23:00 PS17egl followup K band

00:30 switch to EFOSC

00:35 LTT7379 standard

01:00 AT2017gjd classification Ia ~peak/slightly before.

01:10 AT2017gah followup g11 + g16

01:55 AT2017jym classification very faint diffuse object in acq - likely the host. if there is something on top of galaxy it was too faint to expect to get a spectrum.

02:00 AT2017jyn classification nothing visible at position, even in deeper acq

02:10 mirror alignment

02:15 AT2017jyf classification nothing visible in acq

02:20 OGLE17ojj classification galaxy

02:55 AT2017ghm classification v noisy, Ia?

03:10 clouds rolling in

03:25 OGLE17nfr classification just noise

04:00 ATLAS17jsb followup couldn't find in acq due to clouds

04:25 dome closed

06:35 dome opened

06:45 ATLAS17jsb followup g13

07:25 repayment for other program

07:50 Feige110 standard

08:15 AT2017fzw followup g11+g16 - some trouble with guiding system during acq, had to reboot, didn't work

08:40 switch to SOFI

08:55 AT2017gci followup JHK. clouds returned - J band +1/2 of H affected. J and a short H OB repeated in twilight.