GRB230414B
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Contents
Alert Information
- Name/type of the alert: SWIFT_BAT_GRB_POSITION
- GCN notice: [1]
- Triggered by: Swift BAT
- Alert coordinates:
- RA: 12 4 17.112 (hh mm ss), Dec: +53 7 36.480 (dd mm ss)
- RA, Dec in deg (ICRS): 181.07130deg, 53.12680deg
- Alert arrival time: 2022-12-21T23:01:17UTC
- Other relevant information:
- Redshift (z): 3.568 (GTC/OSIRIS)
Multi-wavelength Observations
LST Observations
- Dates of data-taking: 2023-04-14
- 2023-04-14
- Zenith range (deg): 31-->41
- Transmission9km: N.A. (MAGIC lidar not working)
- Observation condition: dark
- Observation mode: std wobbles
- Runs: 12682-->12686 , 12690-->12696
- Joint observations with MAGIC? : yes
- ELOG link:[2]
- Important comments:
- 2023-04-14
Analysis by Irene Burelli (University of Udine - irene.burelli@gmail.com)
Data-taking information
- Overall selected observation time: 202 min
- Selected runs: 12682-->12686 , 12690-->12696
- Position analyzed: RA 181.09deg, Dec 53.15deg (Swift BAT revised position - telescope pointing)
DL1 data
Used DL1b files produced by LSTOSA
/fefs/aswg/data/real/DL1/20230414/v0.9/tailcut84/
DL2 data
- Random forest:
/fefs/aswg/data/models/AllSky/20220511_allsky_std/dec_4822
- lstchain v0.9.6 with config file
/fefs/aswg/data/models/AllSky/20220523_allsky_std/dec_min_2924/lstchain_config_2022-05-23.json
Theta2 plot from DL2
- Cuts and parameters used:
- intensity > 50
- gammaness > 0.8
- Theta2_global_cut=0.04
- leakage < 0.2
- norm_range_theta2_min=0.3
- norm_range_theta2_max=0.5