Night report 2017-04-30

Night report 2017-04-23-30

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_bias, PESSTO_calib

Due to technical problems during the last night, the TOs where working to fix it in the twilight . So the skyflats were not obtained.

Weather conditions: 

23:00 UT: Clear sky, Humidity ~21%; Atm. pressure ~ 770 hPa;  Seeing ~ 0.87

03:30 UT: Clear sky, Humidity ~21%; Atm. pressure ~ 770 hPa;  Seeing ~ 0.94

06:20 UT: Clear sky, Humidity ~12%; Atm. pressure ~ 770 hPa;  Seeing ~ 1.63

10:00 UT: Clear sky, Humidity ~12%; Atm. pressure ~ 770 hPa;  Seeing ~ 1.63

Seeing: 0.89 arcsec (01:50 UT),  1.75 arcsec (05:00 UT), 2 arcsec (09:30 UT)

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

23:00    Technical intervention. 

23:30    Image analysis

23:40    AT2017dcg                05:16:05.04    -16:07:31.1             20                        gr13                    Classification: SN Ia at 20 days from maximum (z~0.072).

23:56    AT2017djt                  08:51:21.34    22:56:39.60            20                        gr13                    Classification: SN Ia at 5 days from maximum (z~0.088). The spectrum shows a strong narrow absorption Na I D consistent with the redshift obtained from the galaxy.  

00:18    Image analysis

00:32    SN2016jbu                07:36:25.96    -69:32:55.2             42                        gr11                    Follow-up: SN IIn.  STOPPED!! Technical problems.

00:57    Technical problems with the rotator, high temperature.

01:22    SN2016jbu                07:36:25.96    -69:32:55.2             42+42                 gr11+gr16            Follow-up: SN IIn. We start again.

02:52    AT2017dio                 11:36:27.76    18:17:46.90            60 +10                gr11+gr16            Follow-up: SN Ic ("Ic-csm").

04:02    SN2017dft                 10:57:32.05    -14:50:06.0             42                       gr13                     Follow-up: SN Ia.     

04:44    AT2017djz                 11:47:51.81    -33:49:36.6             17+2                   gr13                     Classification:  SN Ia at 2 days before maximum (z~0.072).

05:05    AT2017dcc                12:49:04.89    -12:12:22.4             60                       gr11+gr16            Follow-up: SN Ic. 

05:11    AT2017dka                14:01:46.09     09:29:57.4             45                       gr11+gr16            Observed again to try to obtain a definitive classification. The spectrum is still blue featureless, hence we aborted gr16.

06:57    AT2017dia                 13:17:28.84    03:02:54.10            25                       gr13                     Classification: SN Ia around maximum (z~0.11).

07:22    SN2017dfb                15:39:05.03    05:34:16.90            64                       gr11+gr16            Follow-up: SN Ia.     

08:30    AT2017dcf                 16:26:24.64    21:18:59.40            23                       gr13                     Classification: SN Ia at 9 days from maximum (z~0.060).     

08:55    EG274                       16:23:33.7      -39:13:48.0            13                       gr11+gr13+gr16    Telluric standard.   

09:08    AT2017dhx                18:38:39.97    -37:36:40.4            20                        gr13                     Classification:  Blue featureless.                       

09:31    AT2017dgw               19:06:51.82    -36:57:32.5            17                        gr13                     Classification:  SN Ia  at 10 days from maximum (z~0.018). Very red and noisy spectrum. No clear Na I D narrow absorption lines.

09:48    AT2017dgt                 01:27:56.68    -50:41:14.30          17                        gr13                     Classification:  SN Ia at 6 days from maximum. The object is located on the spiral arm of the galaxy (z~0.031). The redshift obtained using SNID is 0.068 (with a good match). This suggest that the SN is behind the galaxy. PLEASE CHECK!!

10:03    AT2017dch                19:55:35.69    -11:38:23.7            17                        gr13                     Classification:  SN Ic around maximum (z~0.048).

10:23    END OF THE NIGHT