IC-220303A

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Alert Information[edit]

  • Name/type of the alert: ICECUBE Astrotrack Gold
  • Triggered by: IceCube
  • GCN notice: Notice + update
  • Alert coordinates:
    • RA: 17 h 51 m 12.000 s, Dec: +11 deg 25 m 11.640 s
    • RA, Dec in deg (ICRS): 267.80 deg, 11.4199 deg
  • Alert arrival time: 20:47 UTC
  • Other relevant information:
    • Redshift (z):

LST Observations[edit]

  • 2022-03-03:
    • Date (time of observation h)
      • ZD range (deg): 58 -> 47
      • Transmission 9km: 0.93
      • Runs: 7243, 7244, 7245, 7246
      • Joint observations with MAGIC? : Yes
      • ELOG: link

Fast Analysis by Alice Donini (INAF)[edit]

Configuration[edit]

  • Position analyzed:
    • (RA,Dec) 17:51:12.00, 11:25:11.1 / (RA,Dec) 267.80, 11.42
  • Selected observation time: 0.9h

DL1 data[edit]

  • DL1 files produced by LSTOSA v0.9.2 with tailcut8-4

Random forest[edit]

  • source-indep:
/fefs/aswg/data/models/20200629_prod5_trans_80/zenith_40deg/south_pointing/20220304_v0.9.3_prod5_trans_80_zen40az180_local_tailcut_8_4/

DL2 data[edit]

  • source-indep
  • lstchain v0.9.2

Analysis Results[edit]

Data selection[edit]

  • intensity cut = 50
  • gammaness cut = 0.7
  • leakage_intensity_width_2 < 0.2

Theta2 plot[edit]

Theta2 plot for IC220303A.
Theta2 plot for IC220303A.
Excess plot for IC220303A.
Excess plot for IC220303A.


Fast Analysis by Kenta Terauchi[edit]

Configuration[edit]

  • Analyzer: Kenta Terauchi (Kyoto Univ., email: terauchi.kenta.74s@st.kyoto-u.ac.jp)
  • Position analyzed:
    • (RA,Dec) 17:51:12.00, 11:25:11.1 / (RA,Dec) 267.80, 11.42
  • Selected observation time: 0.9h

DL1 data[edit]

  • DL1 files produced by LSTOSA v0.9.2 with tailcut(8,4)

Random forest[edit]

  • source-indep:
/fefs/aswg/data/models/20200629_prod5_trans_80/zenith_40deg/south_pointing/20220304_v0.9.3_prod5_trans_80_zen40az180_local_tailcut_8_4/

DL2 data[edit]

  • source-indep
  • lstchain v0.9.2

Analysis Results[edit]

Data selection[edit]

  • intensity > 50
  • gammaness > 0.7
  • leakage_intensity_width_2 < 0.2

Theta2 plot[edit]

  • theta < 0.2
  • norm_range_theta2: 0.3 - 0.5 (For calculation of alpha)
Theta2 plot for IC220303A.
Theta2 plot for IC220303A.

Count Map[edit]

Count map for IC220303A.
Count map for IC220303A.