Difference between revisions of "GRB221009A"
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== LST Observations == | == LST Observations == | ||
− | + | * Observation conditions | |
+ | ** camera summary plot [https://www.lst1.iac.es/datacheck/observation_overview/index.php?b=2022] | ||
+ | ** first night (Oct 10) of the GRB observation and moon Crab observation (Nov 3-5) [[Media:20221107_crab_superplot.pdf | superplots ]] | ||
* '''Dates of data-taking''': 2022-10-10,12,15-18,21,23-26,28,31 | * '''Dates of data-taking''': 2022-10-10,12,15-18,21,23-26,28,31 | ||
** '''2022-10-10''' | ** '''2022-10-10''' |
Revision as of 17:04, 7 November 2022
Go back to Transient Working Group.
Go Back to Gamma-Ray Bursts (GRBs).
Contents
Alert Information
- Name/type of the alert:
- GCN notice: []
- Triggered by: Fermi GBM/Swift BAT
- Alert coordinates:
- RA: h m s, Dec: deg m s
- RA, Dec in deg (ICRS): 288.26452 deg, +19.77350 deg
- Alert arrival time:
- Other relevant information:
- Redshift (z): 0.151
Multi-wavelength Observations
LST Observations
- Observation conditions
- camera summary plot [1]
- first night (Oct 10) of the GRB observation and moon Crab observation (Nov 3-5) superplots
- Dates of data-taking: 2022-10-10,12,15-18,21,23-26,28,31
- 2022-10-10
- Zenith range (deg): 38.8 -> 57.9
- Transmission9km: n/a
- Observation condition: moon
- Observation mode: std wobble, reduced HV
- Runs: 9604 - 9607
- Joint observations with MAGIC? : No
- ELOG link: [2]
- Important comments: Data were affected by timestamp issue. (Reprocessing is already done and results below are from reprocessed data)
- 2022-10-12
- Zenith range (deg): 34.6 -> 50.5
- Transmission9km: n/a
- Observation condition: moon
- Observation mode: std wobble, reduced HV
- Runs: 9613 - 9617
- Joint observations with MAGIC? : Yes
- ELOG link: [3]
- Important comments: Data were affected by timestamp issue. (Reprocessing is already done and results below are from reprocessed data). Run 9613 taken with HV setting "set_hv_reduced_0.5", the others with "set_hv_reduced_0.3"
- 2022-10-15
- Zenith range (deg): 23.8 -> 57.9
- Transmission9km: n/a
- Observation condition: dark and moon (9629,9630)
- Observation mode: std wobble
- Runs: 9625 - 9630
- Joint observations with MAGIC? : Yes, except the first 2 runs
- ELOG link: [4]
- Important comments: Data were affected by timestamp issue. (Reprocessing is already done and results below are from reprocessed data)
- 2022-10-16
- Zenith range (deg): 32.1 -> 64.1
- Transmission9km: n/a
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9640 - 9647
- Joint observations with MAGIC? : No
- ELOG link: [5]
- Important comments: Data were affected by timestamp issue. (Reprocessing is already done and results below are from reprocessed data)
- 2022-10-17
- Zenith range (deg): 25.9 -> 58.6
- Transmission9km: n/a
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9670 - 9677
- Joint observations with MAGIC? : Yes
- ELOG link: [6]
- Important comments: Data were affected by timestamp issue. (Reprocessing is already done and results below are from reprocessed data)
- 2022-10-18
- Zenith range (deg): 23.1 -> 43.5
- Transmission9km: n/a
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9691 - 9696
- Joint observations with MAGIC? : No
- ELOG link: [7]
- Important comments: unstable rate in run 9691
- 2022-10-21
- Zenith range (deg): 34.6 -> 55.6
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9802 - 9807
- Joint observations with MAGIC? : Yes
- ELOG link: [8]
- Important comments:
- 2022-10-23
- Zenith range (deg): 32.07 -> 59.21
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9829 - 9835
- Joint observations with MAGIC? : Yes
- ELOG link: [9]
- Important comments:
- 2022-10-24
- Zenith range (deg): 49.6 -> 58.8
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9861 - 9863
- Joint observations with MAGIC? : No
- ELOG link: [10]
- Important comments: some clouds
- 2022-10-25
- Zenith range (deg): 43.6 -> 56
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9888 - 9891
- Joint observations with MAGIC? : Yes
- ELOG link: [11]
- Important comments:
- 2022-10-26
- Zenith range (deg): 40 -> 56
- Observation condition: dark
- Observation mode: std wobble
- Runs: 9917 - 9920
- Joint observations with MAGIC? : Only run 9919
- ELOG link: [12]
- Important comments: run 9918,9919 are both in W2
- 2022-10-28
- Zenith range (deg): 36.04 -> 50.09
- Observation condition: moon (first 3 runs) and dark
- Observation mode: std wobble
- Runs: 9956 - 9960
- Joint observations with MAGIC? : yes
- ELOG link: [13]
- Important comments:
- 2022-10-31
- Zenith range (deg): 58
- Observation condition: moon
- Observation mode: std wobble
- Runs: 10021
- Joint observations with MAGIC? : yes
- ELOG link: [14]
- Important comments: calibration rate is zero, but Calibox is connected and firing
- 2022-10-10
Src indep analysis by Kenta (Kyoto)
- Email address of analyser: terauchi.kenta.74s@st.kyoto-u.ac.jp
Data info
- Overall selected observation time: min ( h)
- Selected runs: 9604 - 9607
- Position analyzed: RA 288.26452 deg, Dec +19.77350 deg
DL1 data
Used DL1b files produced by LSTOSA (lstchain v0.9.6)
/fefs/aswg/data/real/DL1/20221010/v0.9/tailcut84/
DL2 data
- Random forest:
/fefs/aswg/data/models/AllSky/20220511_allsky_std/dec_2276
- lstchain v0.9.6 with config file taken from the All Sky model
/fefs/aswg/data/models/AllSky/20220511_allsky_std/dec_2276/lstchain_84.json
Theta2 plot
- Cuts and parameters used:
- intensity > 100
- gammaness > 0.6, 0.3
- leakage < 0.2
- Eest range: 0.3 - 10 TeV
- th2 cut = 0.04
- background normalization range: 0.2 < th2 < 0.4