GRB210807A

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Status

Step	Status	Comment
DL2 Production	Done
Low Level Check	To do
DL3 Production	Done
High Level Analysis	On going	Fast analysis done

Green color code : 00BA00 Red Color code : FF0000

Multi-wavelength Observations

Timeline

T0+	Instrument	Outcome	Outcome specific value (flux/UL/...)	Comment	Link
-		Initial detection
		UL
		Detection

Alert

• Triggered by: Swift-BAT

• Alert coordinates: 05h 06m 43.55s, +58d 15' 01.0" (J2000), 76.67730, 58.24520 (deg)

• Alert arrival time: 2021-08-07 10:20:06 UTC

• Additional info: start of observation more than 4h from the trigger, so tagged as not observable from the TH

• GCN notice: link notice

LST Observations

• Delay:

• Overall observation time: ~35.68 min

• Observation mode: std wobbles

• Observed source position: 76.67730, 58.24520

• Observation condition: dark

• Zenith range: 56 -62 deg

• ELOG link: elog 1880

• Important comments:

• Run list :

RunNumber	Start date	Stop date	Drive target name	RA	Dec	Observation condition
5543	2021-08-08 03:55:10	2021-08-08 04:10:17	grb210807A	77.443	58.2475	dark
5544	2021-08-08 04:13:48	2021-08-08 04:25:54	grb210807A	75.9228	58.2475	dark
5545	2021-08-08 04:29:52	2021-08-08 04:39:58	grb210807A	76.6829	58.6498	dark

Low level check

Run xxxxxx : pdf file low level check

Run xxxxxx : pdf file low level check

Run xxxxxx : pdf file low level check

Run xxxxxx : pdf file low level check

Upload low level check plots and comment possible issue and action taken

High Level Analysis

Analysis configuration

• Analyzer: Alice Donini

• Software versions:
  • lstchain v0.7.3
  • gammapy v0.19

• Cuts and parameters used: std

• DL2 MC data for IRF:
  • dl2_electron_40deg_180deg_20210506_v0.7.3_prod5_trans_80_zen40deg_local_tailcut_8_4_testing.h5
  • dl2_proton_40deg_180deg_20210506_v0.7.3_prod5_trans_80_zen40deg_local_tailcut_8_4_testing.h5
  • dl2_gamma_40deg_180deg_off0.4deg_20210506_v0.7.3_prod5_trans_80_zen40deg_local_tailcut_8_4_testing.h5

• Overall selected observation time: ~35 min

• Position analyzed: 76.6773, 58.2452

• Analysis/data problems:

Theta2 plot

Theta2 plot for GRB210807A.

Excess plot for GRB210807A.