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2021-01-21

Observers:   Raúl GonzálezLluís Galbany
Support:  Sara Muñoz, María Delgado
TAT:  Michel Dennefeld, Tomás Muller Bravo, Giuliano Pignata

EFOSC Calibrations:
grz skyflats in the morning only

Weather:
Start: humidity 53% wind 2.3 m/s
Middle: humidity 39% wind 1.5 m/s
End: humidity 47% wind 2.1 m/s

Comments:
No calibrations taken in the evening due to clouds. 
Seeing was 3.0 30min before the twilight, it went down to 2.5 once we started with the first object

Started with EFOSC
UTTargetTypeSetupSlitExposure [s]AirmassSeeing ["]Notes
1:00SN2021pcFollow-upGr11+Gr161.09001.82.5
1:55
SN2020abyj
Follow-up
Gr13
1.5
1800
1.7
2.5

2:36    L745aSTD
Gr13+Gr11+Gr16
1.0
1001.12.5
 
2:51
L745aSTD Gr13+Gr11+Gr161.5
100
1.12.2
 
3:08AT2021advClassificationGr13
1.5
900
1.4
2.1
 SNIa at max
3:31
AT2021arg
ClassificationGr131.5
900
1.3
2.66
 Blue continuum and host galaxy lines on top
3:55
SN2021ok
Follow-up
Gr13
1.5
2700
1.2
1.6
 
4:50
SN2020adow
Follow-up
Gr11+Gr16
1.0
900
1.8
1.87
 
5:38
SN2020znl
Follow-up
Gr13
1.0
2700
1.4
1.8
 
6:28
SN2020abtfFollow-up
Gr13
1.0
1500
1.7
2.0
 
7:03
LTT3864STD
Gr111.5
80
1.0
1.5
 
7:17LTT3864
STD
Gr13+Gr11+Gr16
1.0
80
1.0
1.5
 
7:29
SN2017bcc
Follow-up
Gr13
1.0
2700
2.0
1.6
 
8:24
AT2021akx
Classification
Gr13
1.0
900
1.1
1.4
 SNIa at max
8:48
AT2021aut
Classification
Gr13
1.0
900
1.0
1.3
 SNIa a week pre-max
9:04
AT2021auq
ClassificationGr13
1.0
900
1.1
1.2
 SNIa a week pre-max
Comments