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2021-02-03

Observers:   Jacco Terwel, Mark Magee
Support: Simon Prentice, Luke Harvey
TAT: Michael Fulton, Shubham Srivastav, Janet Chen

EFOSC Calibrations: bias, calib


Weather:
Start: humidity 29, wind 2.2, seeing 1.0
Middle: humidity 22, wind 5, seeing 0.6
End: humidity 28, wind 5.3, seeing 0.7

Comments:

Started with EFOSC

 UT Target Type Set up
 Slit Exposure Airmass Seeing Notes
 00:45
 AT2021bkm Classification
 gr13 1.0
 300s
 1.5
 1.0
 Ia
 00:57 AT2020adkm Follow up
 gr13 1.0
 2700s 1.5 - 1.8
 1.2 
 01:50
 GD71     Standard gr11,13,16 1.0+1.5
 100s 1.5 1.0 
 02:06        Focus + filter wheel check
 02:29 AT2021blz Classification gr13
 1.0 600s 1.1 1.0 Blue spectrum with broad features. Similar to some young SNe II. H alpha at z = ~0.03
 02:49 SN2020aatb Follow up
 gr13 1.0 1800s 1.1 0.9 
 03:44 SN2020yzo    
 Follow up
 gr13 1.0 1500s 1.4 0.7 Lost ~20 mins before this due to a software issue
 04:17 L745A Standard gr11,13,16 1.0+1.5 100s 1.0 0.8 
 04:35 AT2021bnf Classification gr13 1.0 900s 1.25 0.7 Matches with over-luminous SNe Ia before max. z = ~0.13 implies r peak above -20!
 05:05 AT2021bmr Classification gr13 1.0 900s 1.5 0.6 Ia - also classified by ZTF during the night
 05:30 AT2021bnd Classification gr13 1.0 900s 1.1 0.7 Ia - some galaxy contamination
 05:58 ZTF21aaahzpr Follow up
 g+r
  200s + 100s
 1.2 0.7 
 06:23
 SN2021wh Follow up
 g+r  200s + 100s
 1.0 0.7 
 06:33 AT2021bmy Classification gr13 1.0 900s 1.1 0.5 Ia
 06:53 AT2021bnw     Classification gr13 1.0 600s 1.4 0.7 Blue - H alpha at z = ~0.06? IIb. Reasonable match to 93J
 07:13 AT2021bnk Classification gr13 1.0 900s 1.1 0.7 Ia
 07:30 LTT3864 Standard gr11,13,16 1.0+1.5 100s 1.1 0.7 
 07:52 AT2021bjd Classification gr13 1.0 900s 2.0 0.7 Ia
 08:14 SN2021aek Follow up
 gr11 1.0 1800s 1.0 0.7 
 08:50 AT2021brm Classification gr13 1.0 900s 1.9 0.7 Noisy spectrum. H alpha at z = ~0.03. Could be old SN II?
Comments