Difference between revisions of "GRB220521A"

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(Created page with "Go back to Transient Working Group. == Alert Information == * '''Name/type of the alert''': * '''GCN notice''': [https://gcn.gsfc.nasa.gov/other/1107466.swift link] * '...")
 
 
(One intermediate revision by the same user not shown)
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* '''Triggered by''': Swift BAT
 
* '''Triggered by''': Swift BAT
 
* '''Alert coordinates''':  
 
* '''Alert coordinates''':  
** ''RA: 18h 20m 47.184s, Dec: +10d 23' 3.480''
+
** RA: 18h 20m 47.184s, Dec: +10d 23' 3.480
** ''RA, Dec in deg (ICRS): 275.19660 deg, 10.38430 deg''
+
** RA, Dec in deg (ICRS): 275.19660 deg, 10.38430 deg
 
* '''Alert arrival time''': 23:20:36 UTC
 
* '''Alert arrival time''': 23:20:36 UTC
 
* '''Other relevant information''':
 
* '''Other relevant information''':
** Redshift (z):
+
** Redshift (z): 5.6
  
 
==Multi-wavelength Observations==
 
==Multi-wavelength Observations==
  
{|class="wikitable"
 
|+ Timeline
 
!T0+
 
!Instrument
 
!Outcome
 
!Outcome specific value (flux/UL/...)
 
!Comment
 
!Link
 
|-
 
| -
 
|
 
|style="color:#0000FF" | Initial detection
 
|
 
|
 
|
 
|-
 
|
 
|
 
|style="color:#FF0000" | UL
 
|
 
|
 
|
 
|-
 
|
 
|
 
|style="color:#00BA00" | Detection
 
|
 
|
 
|
 
|}
 
  
  
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*** ELOG link: [https://www.lst1.iac.es/elog/LST+commissioning/2260 link]
 
*** ELOG link: [https://www.lst1.iac.es/elog/LST+commissioning/2260 link]
 
*** Important comments: run 8393, 8394, 8400 and 8401 are useless. In 8394 telescope was not tracking. Starting from 8399 is moon conditions.
 
*** Important comments: run 8393, 8394, 8400 and 8401 are useless. In 8394 telescope was not tracking. Starting from 8399 is moon conditions.
 
== Analysis by Alice (INAF) ==
 
 
=== Data-taking information ===
 
 
* Overall selected observation time:
 
* Selected runs:
 
* Position analyzed: ''RA, Dec''
 
 
=== Monte Carlo information ===
 
 
* Link to MC files used:
 
** Particle types:
 
 
=== DL1 data ===
 
 
Please include your settings to produce your DL1a and DL1b files.  This includes whether you use LSTOSA, specific versions of lstchain, dllab scripts, cleaning levels, and calibration information.
 
 
'''Example''' :
 
 
Reprocessed using DL1a files produced by LSTOSA (lstchain v0.7.3) and dl1ab script (v0.7.5)
 
 
* original DL1a files
 
 
/fefs/aswg/data/real/DL1/20210808/v0.7.3/tailcut84/dl1_LST-1.Run0XXXX.XXXX.h5
 
/fefs/aswg/data/mc/DL1/20200629_prod5_trans_80/XXX/zenith_20deg/south_pointing/20210416_v0.7.3_prod5_trans_80_local_taicut_8_4/
 
 
* real data: tailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning
 
 
  /fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/DL1_raw/lstchain_standard_config.json
 
 
* MC: tailcut8-4 (with cleaning based on pedestal RMS), dynamic cleaning, PSF+NSB tuning
 
  "image_modifier": {
 
    "increase_nsb": true,
 
    "extra_noise_in_dim_pixels": 0.74,
 
    "extra_bias_in_dim_pixels": 0.38,
 
    "transition_charge": 8,
 
    "extra_noise_in_bright_pixels": 0.052,
 
    "increase_psf": true,
 
    "smeared_light_fraction": 0.125
 
  },
 
 
  /fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/DL1_raw/lstchain_dl1ab_tune_MC_to_BLLac_config.json
 
 
* Produced DL1b files
 
 
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/DL1_raw/data/
 
/fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/DL1_raw/Run0XXXX
 
 
=== Random forest ===
 
 
Please include the path to the RF files used or your specific .json files used in producing your RFs and for which source analysis (source dependent or independent), and variables used in the RF. 
 
 
'''Example'''
 
 
* lstchain-0.7.6.dev242+g2086cb9
 
 
* source-indep (diffuse gamma, src_r<3deg, disp_norm)
 
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/srcindep/RF/lstchain_standard_config.json
 
 
* source-dep
 
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/srcdep/RF/lstchain_src_dep_config.json
 
 
=== DL2 data ===
 
 
Information about your DL2 data and settings such as: specifc versions of lstchain, specfic .json version used.
 
 
'''Example''':
 
 
* lstchain-0.7.6.dev242+g2086cb9
 
 
* source-indep
 
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/srcindep/DL2/data/
 
/fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/srcindep/DL2/data/dl2_LST-1.Run0XXXX_merged.h5
 
 
* source-dep
 
/fefs/aswg/workspace/seiya.nozaki/data/MC/v0.7.5/tailcut84_dynamic_bllac/srcdep/DL2/data/
 
/fefs/aswg/workspace/seiya.nozaki/data/BLLac/v0.7.3/tailcut84_dynamic_v075/srcdep/DL2/data/dl2_LST-1.Run0XXXX_merged.h5
 
 
=== DL3 data selection ===
 
 
Information about your DL3 data selection.
 
 
'''Example'''
 
*intensity > 50
 
*r: [0,  1 ]
 
*wl: [0.1, 1 ]
 
*leakage_intensity_width_2: [0, 0.2 ]
 
 
* source-indep
 
**fixed_gh_cut: 0.3
 
**fixed_theta_cut: 0.2
 
 
* source-dep
 
**fixed_gh_cut: 0.7
 
**fixed_alpha_cut: 10
 
 
=== High-level analysis ===
 
 
Please put any information about the production of higher level analysis here.
 
 
'''Example'''
 
 
* Science Tool: gammapy 0.18.2
 
* Point-like IRF, 1D analysis
 
 
== Analysis Results ==
 
 
Please place higher-level analysis results (Spectra, SkyMaps, Lightcurves, etc) here.
 
If the alert was observed for several nights please add plots for each night separately and all data together.
 
 
=== Theta2 plot ===
 
 
=== Significance map ===
 
 
=== Excess map ===
 
 
=== Spectral results ===
 

Latest revision as of 10:35, 9 September 2022

Go back to Transient Working Group.


Alert Information[edit]

  • Name/type of the alert:
  • GCN notice: link
  • Triggered by: Swift BAT
  • Alert coordinates:
    • RA: 18h 20m 47.184s, Dec: +10d 23' 3.480
    • RA, Dec in deg (ICRS): 275.19660 deg, 10.38430 deg
  • Alert arrival time: 23:20:36 UTC
  • Other relevant information:
    • Redshift (z): 5.6

Multi-wavelength Observations[edit]

LST Observations[edit]

  • Dates of data-taking: 2022-05-21
    • 2022-05-21
      • Zenith range (deg): 65 --> 70
      • Transmission9km:
      • Observation condition: dark & moonlight
      • Observation mode: std wobbles
      • Runs: 8392 - 8403
      • Joint observations with MAGIC? : No
      • ELOG link: link
      • Important comments: run 8393, 8394, 8400 and 8401 are useless. In 8394 telescope was not tracking. Starting from 8399 is moon conditions.