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Night report 2021-01-14

Observers:   Ken Smith, Michael Fulton
Support:  Shubham Srivastav, James Gillanders
TAT:  Sheng Yang, Cristina Barbarino and Janet Chen

EFOSC2 Calibrations:
Spectroscopic arcs
Biases
gri skyflats

Weather:
Start: humidity 28% wind 7.4 m/s
Middle: humidity 21% wind 8.0 m/s
End: humidity 22% wind 12.3 m/s

Comments:


Started with EFOSC
UT Target Type Setup Slit Exposure [s] Airmass Seeing ["] Notes
 00:33 AT2021xy Classification GR13 1 900 1.2 1.1SN Ia (possibly SN Ia-91T) around peak. SNID redshift of z = 0.07. The host has a known redshift z = 0.061.
 00:59  GD71  STD  GR11/GR13/GR16  1  4x100  1.7  1.2   
 01:14 IMAGE ANALYSIS      Performed Image Analysis on target AT2019qiz.
 01:33  AT2019qiz  Follow-up  GR16  1  2700 1.1  1.0  
 02:32  AT2019qiz  Follow-up  GR16  1  2700  1.1  0.8  
 03:34  SN2021ok  Follow-up  GR13  1  1800  1.0  1.2  
 04:19  L745a  STD  GR11/GR13/GR16  1  4x100  1.0  1.5  


Switched to SOFI --> 04:34 UTC
UT Target Type Setup Exec-time [s] Airmass Seeing ["] Notes
 04:45 IMAGE ANALYSIS     Performed Image Analysis on target SN2019qem.
 04:58 SN2019qem Follow-up JHK 2020 1.3 1.1 
 05:27 SN2021dn Follow-up JH 1050 1.7 1.0 
 05:43  SN2020adeu  Follow-up  JH  1050  1.6  1.1  
 05:59  SN2021gl  Follow-up  JH  3160  1.2  1.0  
 06:46 SN2020adqq Follow-up JH 3160 1.3 1.0 


Switched back to EFOSC --> 07:34 UTC
UTTargetTypeSetupSlitExposure [s]AirmassSeeing ["]Notes
 07:44 FOCUS       Re-focussed for target SN2021zj.
 07:51 SN2021zj Follow-up GR11 1 1800 1.9 1.1
 08:25 AT2021aek Classification GR13 1 900 1.0 1.1Young Type IIn? Possible galaxy contamination, though target was offset from core. SNID redshift z = 0.023 consistent with known host redshift z = 0.022.
 08:47 AT2021aez Classification GR13 1 600 1.5 1.0Type II a month after peak - just emerged from behind the Sun, so ATLAS lightcurve has no good age constraints. SNID redshift of z = 0.018 which is consistent with known host redshift z = 0.016.

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