GRB230512A
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Contents
Alert Information
- Name/type of the alert: Name
- GCN notice: https://gcn.nasa.gov/circulars/33778
- Triggered by: Fermi GBM (but alert from TH by Fermi-LAT)
- Alert coordinates (From Fermi-LAT):
- RA: 19 41 36.00 (hh mm ss), Dec: +38 24 00.00 (dd mm ss)
- RA, Dec in deg (ICRS): 295.4, 38.4
- Alert arrival time: 06:27:45 UT
- Other relevant information:
- Redshift (z): n/a
Multi-wavelength Observations
T0+ | Instrument | Outcome | Outcome specific value (flux/UL/...) | Comment | Link |
---|---|---|---|---|---|
0-300 s after the GBM trigger | Fermi-LAT | Detection | (1.0 ± 0.3) E-05 ph/cm2/s | The highest-energy photon is a 1.7 GeV | https://gcn.nasa.gov/circulars/33780 |
45.5 - 57.3 ks | Swift-XRT | No aparent detection | Nine uncatalogued X-ray sources have been detected | However none of them is above the RASS limit or shows definitive signs of fading. | https://gcn.nasa.gov/circulars/33789 |
2 hours | Zwicky Transient Facility | No aparent detection | Two sources were found within the 95% localization region | These are likely unrelated as they fall outside the LAT localization | https://gcn.nasa.gov/circulars/33784 |
LST Observations
- 2023-05-12
- Date (time of observation h): 2023-05-13 (00:27)
- Zenith range (deg): 62 - 15
- Transmission9km: n/a
- Observation condition: dark, moonlight, high level of dust, moderate cloudiness
- Observation mode: std wobbles
- Runs: 12962 - 12973
- Joint observations with MAGIC? : Yes
- ELOG link: [1]
- Important comments: '
- Date (time of observation h): 2023-05-13 (00:27)
Analysis by Arnau Aguasca-Cabot (UB - arnau.aguasca@fqa.ub.edu)
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.