Night Report 2018-02-17

Observers: Ken W. Smith, Jesse T. Palmerio

Support Team: David O'Neill, Owen McBrien, Peter Clark, Erkki Kankare

TAT: Cristina Barbarino, Morgan Fraser

TO: Mauricio Martinez (day) Eduardo Matamoros (night)

Calibrations: EFOSC2 PESSTO_calib, PESSTO_bias

Weather: Unable to observe until 04:00 UT, then thin clouds with humidity around 60%, variable seeing (0.7"-1.2").

Comments: Humidity was 80% at start of night. Telescopes opened for observations around 04:00 UT, once humidity dropped below 70%.

UT Object setup exp airmass seeing note

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EFOSC

04:06:00 SN2017jfa gr13 sl1 1800s 1.4 1.1"

04:43:00 SN2017jfa gr13 sl1 1800s 1.55 1.0"

05:22:00 AT2018vs gr13 sl1 600s 1.4 0.8" class -> SNIa at z=0.04?

05:37:00 SN2017ens gr16 sl1 2700s 1.17 0.9"

06:48:00 SN2017ens gr16 sl1 2700s 1.12 1.1"

07:47:00 Std_LTT3864

08:00:00 SN2017iue gr11 sl1 3600s 1.5 0.8"

09:16:00 AT2018sn gr13 sl1 900s 1.45 1.1" class -> SNIa at z=0.09, few days past peak?