GRB221221A
Revision as of 16:48, 4 January 2023 by Irene.burelli (talk | contribs) (Created page with "== Alert Information == * '''Name/type of the alert''': Fermi-GBM Final Position * '''GCN notice''': [https://gcn.gsfc.nasa.gov/other/693355175.fermi] * '''Triggered by''': F...")
Contents
Alert Information
- Name/type of the alert: Fermi-GBM Final Position
- GCN notice: [1]
- Triggered by: Fermi-GBM
- Alert coordinates:
- RA: +05 27 17 (hh mm ss), Dec: +63 23 60 (dd mm ss)
- RA, Dec in deg (ICRS): 84.94deg, 59.03deg
- Alert arrival time: 2022-12-21T23:01:17UTC
- Other relevant information:
- Redshift (z):
Multi-wavelength Observations
LST Observations
- Dates of data-taking: 2022-12-21
- 2022-12-21
- Zenith range (deg): 34 --> 32
- Transmission9km: N.A. (MAGIC lidar not working)
- Observation condition: dark
- Observation mode: std wobbles
- Runs: 11551 - 11559
- Joint observations with MAGIC? : yes
- ELOG link:[2]
- Important comments:
- 2022-12-21
Analysis by Irene Burelli (University of Udine - irene.burelli@gmail.com)
Data-taking information
- Overall selected observation time: 161.4 min
- Selected runs: 11551 -> 11559
- Position analyzed: RA 84.94deg, Dec 59.03deg
DL1 data
Used DL1b files produced by LSTOSA
/fefs/aswg/data/real/DL1/20221221/v0.9/tailcut84/
DL2 data
- Random forest:
/fefs/aswg/data/models/20200629_prod5_trans_80/zenith_40deg/south_pointing/20220304_v0.9.3_prod5_trans_80_zen40az180_local_tailcut_8_4
- lstchain v0.9.6 with config file
/fefs/aswg/data/real/DL1/20210809/v0.9/tailcut84/log/lstchain_config_tailcut84_v092.json
Theta2 plot from DL2
- Cuts and parameters used:
- intensity > 50
- gammaness > 0.7
- Theta2_global_cut=0.04
- leakage < 0.2
- norm_range_theta2_min=0.3
- norm_range_theta2_max=0.5