batgrbproduct analysis for trigger=1187199

batgrbproduct Analysis for Trigger=1187199

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sat Aug 26 16:12:55 EDT 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1187199/GCN5_download_cron
======================================================================

  Trigger: 01187199      Segment: 000

  BAT Trigger Time: 714679208   [s; MET]
      Trigger Stop: 714679272   [s; MET]
               UTC: 2023-08-25T17:59:36.109200    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 83.8722656810887   Dec: 22.2145435646669  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    17.72
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    17.72

  Flight Position:   [ source = BAT ]
    RA: 83.8722656810887   Dec: 22.2145435646669  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 83.8731850716732   Dec: 22.2075378141571  [deg; J2000]  
        { 05h 35m 29.6s , +22d 12' 27.1" }
         +/- 1.31672649869826 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.490833134871614 [arcmin] (formal 1-sigma fit error)
    SNR: 20.5310147364155
 
  Angular difference between Flight and Ground position is 0.423436 arcmin
 
  Partial Coding Fraction: 0.9921875    [ including projection effects ]

  Duration
     T90: 180.031999945641 +/- 63.5486806413658
        Measured from: 280.18799996376
                   to: 460.219999909401     [s; relative to TRIGTIME]
     T50: 99.2079999446869 +/- 65.4773353641965
        Measured from: 321.424000024796
                   to: 420.631999969482     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 463.731999993324     
                   to: 464.731999993324     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 261.588000059128     
                   to: 479.228000044823     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.266817   0.165026   0.152982   0.069072
           0.119503   0.124926   0.105629   0.092590 [error]
 Peak     -0.020604   0.096814   0.018132   0.008966
           0.030282   0.031599   0.022836   0.021018 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== Fluence/Peak Flux Summary ===
 
              Model    Band1    Band2    Band3    Band4    Band5    Total      
                       15-25    25-50   50-100  100-350   15-150   15-350   keV
Fluence   Power-law 2.92e-07 3.78e-07 3.60e-07 6.05e-07 1.23e-06 1.63e-06   erg/cm2
              Error 2.74e-08 2.29e-08 3.97e-08 1.35e-07 8.79e-08 1.75e-07   erg/cm2
Peak flux Power-law 1.51e-01 1.08e-01 5.15e-02 3.44e-02 3.27e-01 3.45e-01   ph/cm2/s
              Error 1.45e-02 6.55e-03 5.47e-03 7.18e-03 2.02e-02 2.09e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.84e-07 3.87e-07 3.57e-07 4.08e-07 1.20e-06 1.44e-06   erg/cm2
              Error 3.14e-08 2.88e-08 4.17e-08 2.69e-07 1.05e-07 3.03e-07   erg/cm2
Peak flux Cutoff-PL 1.47e-01 1.11e-01 5.14e-02 2.53e-02 3.23e-01 3.34e-01   ph/cm2/s
              Error 1.69e-02 8.05e-03 5.68e-03 1.25e-02 2.19e-02 2.78e-02   ph/cm2/s
 
Fluence        Band 2.84e-07 3.83e-07 3.58e-07 4.84e-07 1.21e-06 1.52e-06   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.47e-01 1.11e-01 5.14e-02 2.53e-02 3.23e-01 3.34e-01   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.000    0.000    -      -           0.00e+00 0.00e+00    0.000  0
CPL   0.000    0.000       0.0    0.0      0.00e+00 0.00e+00    0.000  0
 
The chi2 of BB fit is 101.39 which shows a significant improvement in the fit over a PL.
Check the BB fit.
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.000    0.000    -      -           0.00e+00 0.00e+00    0.000  0
CPL   0.000    0.000       0.0    0.0      0.00e+00 0.00e+00    0.000  0
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the index)
Ph_90err   : 90% error of the photon index
Epeak      : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm       : normalization at 50 keV in PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  217.640  261.588  479.228
T90   180.032  280.188  460.220
T50    99.208  321.424  420.632
Peak    1.000  463.732  464.732

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   83.8732 +22.2075 0.0094   11.3  133.4       2.5047    20.5  TRIG_01187199       
------------------------------------------
 
Foreground time interval of the image:
  0.000  23.060 (delta_t =  23.060 [sec])
 24.000  64.000 (delta_t =  40.000 [sec])
Background time interval of the image:

Lightcurves

Notes:

1 s binning

From T0-310 s to T0+310 s
From T100_start - 20 s to T100_end + 30 s
Full time interval

64 ms binning

Full time interval
From T100_start to T100_end
From T0-5 sec to T0+5 sec

16 ms binning

From T100_start-5 s to T100_start+5 s

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

SN=5 or 10 sec. binning (whichever binning is satisfied first)

SN=5 or 10 sec. binning (T < 200 sec)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Multiple GTIs in the spectrum
tstart tstop
261.588000 299.540000
301.000000 479.228000
Usage: bat_spec_fit_sys_xspec12.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
261.588000 299.540000
301.000000 479.228000
Usage: bat_spec_fit_cutoff_sys_xspec12.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/bat2/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Band function
Multiple GTIs in the spectrum
tstart tstop
261.588000 299.540000
301.000000 479.228000
Usage: bat_spec_fit_band_sys.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/bat2/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Single BB
Usage: bat_spec_fit_bb_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
Thermal bremsstrahlung (OTTB)
Usage: bat_spec_fit_brems_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
Double BB
Usage: bat_spec_fit_2bb_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            

Peak spectrum fit

Power-law model
Time interval is from  463.732 sec. to  464.732 sec.
Usage: bat_spec_fit_sys_xspec12.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Cutoff power-law model
Time interval is from  463.732 sec. to  464.732 sec.
Usage: bat_spec_fit_cutoff_sys_xspec12.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/bat2/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Band function
Time interval is from  463.732 sec. to  464.732 sec.
Usage: bat_spec_fit_band_sys.sh (pha file) (response file) (script folder) (folder of taka's xspec lmodel)
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
script folder: /local/data/bat2/BATtools/battools/bin/GRB_spec_fit_v2
folder of taka's xspec lmodel: /local/data/bat1/prebascript/xspec_taka_lmodel
Single BB
Usage: bat_spec_fit_bb_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
Thermal bremsstrahlung (OTTB)
Usage: bat_spec_fit_brems_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
Double BB
Usage: bat_spec_fit_2bb_sys.sh (pha file) (response file)           
       This script tries to add the systematic column to the PHA
       file before doing the fitting                            
Plot creation:
Sat Aug 26 16:15:33 EDT 2023