Difference between revisions of "GRB220310A"

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(→‎Analysis by Kenta)
(→‎Analysis by Kenta)
 
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| [[Image:MAXI220310A_th2_1strun_gh04_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only 1st run; gammaness > 0.4]]
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| [[Image:MAXI220310A_th2_1strun_gh04_Kenta.png|thumb|800px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only 1st run; gammaness > 0.4]]
 
| [[Image:MAXI220310A_th2_1strun_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only 1st run; gammaness > 0.7]]
 
| [[Image:MAXI220310A_th2_1strun_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only 1st run; gammaness > 0.7]]
 
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{| align='center'
 
{| align='center'
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| [[Image:MAXI220310A_th2_allrun_gh04_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only all runs; gammaness > 0.4]]
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| [[Image:MAXI220310A_th2_allrun_gh04_Kenta.png|thumb|800px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using only all runs; gammaness > 0.4]]
 
| [[Image:MAXI220310A_th2_allrun_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using all runs; gammaness > 0.7]]
 
| [[Image:MAXI220310A_th2_allrun_Kenta.png|thumb|600px|center|alt=Theta2 plot for GRB220310A.|Theta2 plot for GRB220310A using all runs; gammaness > 0.7]]
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=== Excess/Significance Evolution ===
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{| align='center'
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| [[Image:GRB220310A_excess_evo_gh04_Kenta.png|thumb|600px|center|alt=Excess evolution plot for GRB220310A.|Excess evolution plot for GRB220310A; gammaness > 0.4]]
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| [[Image:GRB220310A_Sig_evo_gh04_Kenta.png|thumb|600px|center|alt=Significance evolution plot for GRB220310A.|Significance evolution plot for GRB220310A; gammaness > 0.4]]
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|}
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{| align='center'
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| [[Image:GRB220310A_excess_evo_gh07_Kenta.png|thumb|600px|center|alt=Excess evolution plot for GRB220310A.|Excess evolution plot for GRB220310A; gammaness > 0.7]]
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| [[Image:GRB220310A_Sig_evo_gh07_Kenta.png|thumb|600px|center|alt=Significance evolution plot for GRB220310A.|Significance evolution plot for GRB220310A; gammaness > 0.7]]
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=== Skymap ===
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* '''Background estimation method''': ring background (mainly developed by Mathieu)
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{| align='center'
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| [[Image:GRB220310A_skymap_allrun_gh04_Kenta.png|thumb|1800px|center|alt=Skymap for GRB220310A.|Skymap for GRB220310A; gammaness > 0.4; colorbar of the significance map has been adjusted for visualization]]
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|}
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{| align='center'
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| [[Image:GRB220310A_skymap_allrun_gh07_Kenta.png|thumb|1800px|center|alt=Skymap for GRB220310A.|Skymap for GRB220310A; gammaness > 0.7; colorbar of the significance map has been adjusted for visualization]]
 
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Latest revision as of 07:29, 7 April 2022

Go back to Transient observation logbook.


Alert Information[edit]

  • Name/type of the alert: Name
  • GCN notice: https://gcn.gsfc.nasa.gov/gcn3/31725.gcn3
  • Triggered by: MAXI
  • Alert coordinates:
    • RA: 11 13 02.33 (hh mm ss), Dec: +23 15 08 (dd mm ss)
    • RA, Dec in deg (ICRS): 168.2597083, +23.2522222
  • Alert arrival time: 2022-03-10 01:01:48 UTC
  • Other relevant information:
    • Redshift (z):

LST Observations[edit]

  • Dates of data-taking: 2022-03-09
    • 2022-03-09
      • Zenith range (deg): 6 -> 35
      • Transmission9km:
      • Observation condition: moon -> dark
      • Observation mode: std wobbles
      • Runs: 7371 - 7378 (moon: 7371,7372)
      • Joint observations with MAGIC? : No
      • ELOG link: Logbook URL
      • Important comments: NSB level of Run7371,7372 should be below 2x dark NSB according to PMT anode current

Analysis by Kenta[edit]

Analysis configuration[edit]

  • Analyzer: Kenta Terauchi (Kyoto Univ., email: terauchi.kenta.74s@st.kyoto-u.ac.jp)
  • Software versions:
    • lstchain v0.9.2
  • Cuts and parameters used:
    • intensity > 50
    • gammaness > 0.4, 0.7
    • leakage < 0.2
  • DL1 files :

Used DL1b files produced by LSTOSA (lstchain v0.9.X) 

/fefs/aswg/data/real/DL1/20220302/v0.9/tailcut84/dl1_LST-1.Run0{7371-7378}.h5
  • Random Forest :

src-indep (diffuse gamma, src_r<3deg, disp_norm) 

/fefs/aswg/data/models/20200629_prod5_trans_80/zenith_20deg/south_pointing/20220215_v0.9.1_prod5_trans_80_local_tailcut_8_4
  • DL2 MC data for IRF:
  • Overall selected observation time: 132 min (2.2 h)
  • Position analyzed: 168.2597083, 23.2522222 (deg)
  • Analysis/data problems:

Theta2 plot[edit]

  • theta < 0.2
  • norm_range_theta2: 0.3 - 0.5


Theta2 plot for GRB220310A.
Theta2 plot for GRB220310A using only 1st run; gammaness > 0.4
Theta2 plot for GRB220310A.
Theta2 plot for GRB220310A using only 1st run; gammaness > 0.7
Theta2 plot for GRB220310A.
Theta2 plot for GRB220310A using only all runs; gammaness > 0.4
Theta2 plot for GRB220310A.
Theta2 plot for GRB220310A using all runs; gammaness > 0.7

Excess/Significance Evolution[edit]

Excess evolution plot for GRB220310A.
Excess evolution plot for GRB220310A; gammaness > 0.4
Significance evolution plot for GRB220310A.
Significance evolution plot for GRB220310A; gammaness > 0.4
Excess evolution plot for GRB220310A.
Excess evolution plot for GRB220310A; gammaness > 0.7
Significance evolution plot for GRB220310A.
Significance evolution plot for GRB220310A; gammaness > 0.7

Skymap[edit]

  • Background estimation method: ring background (mainly developed by Mathieu)
Skymap for GRB220310A.
Skymap for GRB220310A; gammaness > 0.4; colorbar of the significance map has been adjusted for visualization
Skymap for GRB220310A.
Skymap for GRB220310A; gammaness > 0.7; colorbar of the significance map has been adjusted for visualization
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