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2021-03-20

Observers:  Claudia Gutiérrez,  Steve Williams, Timo Kravtsov 
Support: Takashi Nagao
TAT: Jesper Sollerman, Tassilo Schweyer, Sheng Yang

EFOSC2 Calibrations: bias frames, spectroscopic arcs, Ugr sky flats

Weather:
Start: humidity  60%, wind 10.7 m/s, seeing 1.6
Middle: humidity 45%, wind 9.1 m/s , seeing 1.4

Comments:
6:40: Telescope closed due strong wind (16 m/s).  

 UT Target 
 Type Setup  Slit Exposure 
Airmass
Seeing 
Notes
23:40

Image analysis
00:01 LTT 3864 Standard g11, g13, g16 1.0/1.5 1.3 1.6  
00:17  AT2021gbk  Classification  g13 1.0 -- - - Aborted. The FC and the coordinates pointed to a source below the galaxy, but nothing was there. Variation in the nucleus?
00:23 AT2021blz Follow-up g13 1.0 2700 1.3 1.5
01:18 SN2020tjd  Follow-up g13 1.0 2700 1.3 1.7  
 02:06 AT2021gfo Classifications g13 1.0 900 1.2 1.9 Class:  SN Ia(?)
02:29 SN2021dov  Follow-up g11+g16 1.0 900 1.2 1.9
03:16 AT2021fox Classifications g13 1.0 600 1.1 1.7 Class: Blue continuum
03:33 AT2021fna   Classifications g13 1.0 900 1.0 1.55 Class: SN Ia(?)
03:55 AT2021foh Classifications g13 1.0 300 1.2
Class: SN Ia
04:04 SN2021fxy Follow-up g11+g16 1.0 1500 1.1 1.4
05:15 SN2021csp Follow-up g13 1.0 1500 1.2 1.4 Very faint object (strong wind). First exposure completed, second exposure aborted in the middle. Telescope closed due to very strong wind.












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