Night report 2017-04-29

Night report 2017-04-23-29

Observers: Claudia Gutiérrez, Regis Cartier

TAT on duty: Cosimo Inserra, Joe Lyman

Support team: Regis Cartier, Claudia Gutiérrez, Mat Smith, Chris Frohmaier.

Daytime calibrations: PESSTO_SOFI_SpecArc, PESTTO_SOFI_FlatJHK, PESSTO_SOFI_specflat, PESSTO_bias, PESSTO_skyFF_eve_BR

Weather conditions:

23:00 UT: Clear sky, Humidity ~12%; Atm. pressure ~ 770 hPa; Seeing ~ 0.94

04:00 UT: Clear sky, Humidity ~13%; Atm. pressure ~ 770 hPa; Seeing ~ 1.0

06:00 UT: Clear sky, Humidity ~10%; Atm. pressure ~ 770 hPa; Seeing ~ 0.69

09:30 UT: Clear sky, Humidity ~8%; Atm. pressure ~ 770 hPa; Seeing ~ 0.92

Seeing: 0.8 arcsec (02:30 UT), 0.73 arcsec (08:10 UT), 0.75 arcsec (10:30 UT)

UT Target RA DEC Time spent(min) slit/grism/filter Description

23:00 AT2017diz 10:34:20.11 13:45:04.20 20 gr13 Classification: SN II at z~0.01. Spectrum dominated by galaxy lines.

23:22 Image analysis

23:33 AT2017dht 09:27:06.82 12:42:03.50 90 gr11+gr16 Observed again to try to obtain a definitive classification.

01:03 PS17bek 10:47:41.90 26:50:06 52 gr13 Follow-up: Object too faint. We increased the exposure time of the acquisition image and the object was not clearly visible.

01:16 AT2017djl 12:52:20.38 12:52:20.38 17 gr13 Classification: SN Ia around maximum at z~0.0445.

01:33 AT2017dhl 12:12:03.67 06:39:14.20 32 gr13 Classification: SN Ia at 10 days from maximum (z~0.137)

02:06 AT2017dio 11:36:27.76 18:17:46.90 17 gr13 Classification: SN Ic at z~0.037. Strong narrow H-delta emission line and possible narrow He I lines from the CSM.

02:25 AT2017hm 11:33:10.57 -10:13:18.4 50 gr13 Follow-up: SN Ia

03:17 AT2017djn 12:57:25.95 -17:51:48.7 17 gr13 Classification: SN Ia at -5 from maximum (z~0.051).

03:36 AT2017djm 12:06:50.32 -24:28:06.2 16 gr13 Classification: SN Ia around maximum (z~0.050).

03:52 AT2017dhh 11:57:55.77 -03:27:36.8 30 gr13 Classification: SN Ia around maximum at z~0.137.

04:26 AT2017dhn 11:11:33.20 09:04:19.70 37 gr13 Classification: SN II at 15 days from maximum (z~0.074).

04:57 AT2017dhf 11:14:19.74 -04:38:06.0 32 gr13 Classification: Blue featureless.

05:29 AT2017dju 13:05:43.86 -37:40:36 18 gr13 Classification: SN Ia (1991bg-like) at 9days from maximum (z~0.051).

05:48 Image analysis

06:07 AT2017dir 14:02:09.77 22:52:20.40 22 gr13 Classification: SN Ia at 13 days from maximum (z~0.065).

06:28 AT2017djq 13:11:33.07 -19:09:22.8 22 gr13 Classification: SN IIn at 8 days from maximum (z~0.068).

06:50 EG274 16:23:33.7 -39:13:48.0 13 gr11+gr13+gr16 Telluric standard.

07:07 AT2017dka 14:01:46.1 09:29:57.4 17 gr13 Classification: Blue featureless spectrum (z~0.020).

07:24 AT2017ddl 16:23:20.80 -13:44:24.1 22 gr13 Classification: Possibly consistent with a variable star with broad Balmer features. Noisy and blue spectrum.

07:46 AT2017djk 18:08:51.10 -73:04:04.2 22 gr13 Classification: Variable star (very blue) with Balmer lines redshifted by 3000 km/s.

08:08 AT2016cvk 22:19:49.39 -40:40:03 22 Vgri Follow-up: SN IIn

08:34 LSQ15adm 20:14:21.82 -58:08:20.2 42 r Follow-up: SN Ia-csm (Stopped!)

09:00 Image analysis

09:17 LSQ15adm 20:14:21.82 -58:08:20.2 r Follow-up: SN Ia-csm

09:30 SN2016egz 00:04:03.85 -34:48:52 42 gr13 Follow-up: SN II

10:10 AT2017diw 01:36:15.07 -65:10:30.7 20 gr13 Classification: SN Ia at 27 days from maximum (0.070).

10:23 End of the Night