Fast Offline Analysis GRB240809A August 2024 P067
Contents
General information
- Name of the source: GRB240809A
- Brief description of the source:
- Object type : GRB
- Redshift (z) : ?
- Other relevant information
- RA, Dec in deg (ICRS): 237.5438, -2.3176
- Analysis by:
- Irene Jiménez Martínez (MPI - irenejm@mpp.mpg.de)
Data-taking information
- Dates of data-taking:
- Date: 2024-08-09 (2.2 h)
- ZD range (deg): 45 - 65
- Observations:
- Date: 2024-08-09 (2.2 h)
2024-08-05: [18530, 18531, 18532, 18533, 18534, 18535, 18536, 18537]
- Data quality selection: no run survives the data quality selection, but some runs pass all selections except the dR/dI rate selection: [18530 18531 18532 18533 18534]. FOA is performed with all runs, not only these ones.
- Joint observations with MAGIC?: yes but only between 18532 and 18535 both inclusive
- Information on data-taking (observations summaries): RTA reached more than 3 sigmas during data-taking. Camera homogeneity probably affected by MAGIC LIDAR as occurred in https://www.lst1.iac.es/wiki/index.php/Fast_Offline_Analysis_GRB240805B_August_2024_P067 . https://www.lst1.iac.es/datacheck/observation_overview/2024/08/run_summary_2024_08_09.pdf
General analysis information
- source-independent analysis
- lstchain version: v0.10.9
- DL1b standard production (v0.10/tailcut84), run-wise merged files in:
/fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18530.h5 /fefs/aswg/data/real/DL1/20240809/v0.10/tailcut84/dl1_LST-1.Run18537.h5
Monte Carlo information
Write below the MC production ID among the existing MC
- All-sky MC production used: 20240131_allsky_v0.10.5_all_dec_base
- Declination line (training): dec_min_413
Random forest
Path to the models used:
/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_min_413
DL2 data
Config file:
/fefs/aswg/data/models/AllSky/20240131_allsky_v0.10.5_all_dec_base/dec_min_413/lstchain_config_2024-01-31.json
Files in:
/fefs/aswg/workspace/irene.jimenez/FOA/GRB240809A_20240809/DL2
DL3 data & IRF
"EventSelector": { "filters": { "intensity": [50, Infinity], "width": [0, Infinity], "length": [0, Infinity], "r": [0, 1], "wl": [0.01, 1], "leakage_intensity_width_2": [0, 1], "event_type": [32, 32] } }, "DL3Cuts": { "min_event_p_en_bin": 100, "min_gh_cut": 0.1, "max_gh_cut": 0.98, "min_theta_cut": 0.1, "max_theta_cut": 0.32, "fill_theta_cut": 0.32, "allowed_tels": [1] }
- 70 % efficiency for both gammaness and theta gamma-ray selection cuts
- Point-like IRF
High-level analysis and results
Analysis settings
- Gammapy version: 1.1
- 1D analysis (point-like IRF)
Theta2 plot
Settings:
- Theta2 cut for signal extraction: 0.04 deg2
- Normalization range: 0.1 - 0.4 deg2
- Number of off positions: 3
- Energy range: 0.01 - 10 TeV
Daily results
- 2024-08-09:
Stacked observations
Significance and Excess sky maps
Camera homogeneity probably affected by MAGIC LIDAR as occurred in https://www.lst1.iac.es/wiki/index.php/Fast_Offline_Analysis_GRB240805B_August_2024_P067 .