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 | 1.1 | SN 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 | UT | Target | Type | Setup | Slit | Exposure [s] | Airmass | Seeing ["] | 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 | 1.1 | Young 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 | 1.0 | Type 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. | |
| 