batgrbproduct analysis for trigger=853790

batgrbproduct Analysis for Trigger=853790

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Aug 18 20:33:01 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger853790/GCN5_download_cron
======================================================================

  Trigger: 00853790      Segment: 000

  BAT Trigger Time: 556232320   [s; MET]
      Trigger Stop: 556232384   [s; MET]
               UTC: 2018-08-17T20:58:18.555700    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 192.884720915457   Dec: 25.9207662805478  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    6.12
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    6.12

  Flight Position:   [ source = BAT ]
    RA: 192.884720915457   Dec: 25.9207662805478  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 192.898991235066   Dec: 25.9428634124157  [deg; J2000]  
        { 12h 51m 35.8s , +25d 56' 34.3" }
         +/- 4.0650280839504 [arcmin] (estimated 90% radius based on SNR)
         +/- 2.70419287907017 [arcmin] (formal 1-sigma fit error)
    SNR: 4.10230166971098
 
  Angular difference between Flight and Ground position is 1.533211 arcmin
 
  Partial Coding Fraction: 0.6796875    [ including projection effects ]

  Duration
     T90: 89.3119999170303 +/- 63.0899673164498
        Measured from: 179.024000167847
                   to: 268.336000084877     [s; relative to TRIGTIME]
     T50: 89.3119999170303 +/- 63.1484230150492
        Measured from: 179.024000167847
                   to: 268.336000084877     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 241.68799996376     
                   to: 242.68799996376     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 179.024000048637     
                   to: 268.335999965668     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total    -0.384479  -0.968502  -0.179610  -0.065980
           0.089644   0.111876   0.089776   0.109485 [error]
 Peak     -0.000893  -0.010613   0.031325   0.024974
           0.010493   0.013279   0.010665   0.013465 [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 6.44e-08 8.68e-08 8.63e-08 1.55e-07 2.88e-07 3.93e-07   erg/cm2
              Error 2.89e-08 3.09e-08 4.82e-08 1.92e-07 1.19e-07 2.32e-07   erg/cm2
Peak flux Power-law 3.28e-02 2.45e-02 1.21e-02 8.61e-03 7.34e-02 7.80e-02   ph/cm2/s
              Error 1.50e-02 8.62e-03 6.59e-03 1.00e-02 2.58e-02 2.76e-02   ph/cm2/s
 
Fluence   Cutoff-PL 4.50e-08 1.28e-07 6.90e-08 3.02e-09 2.45e-07 2.46e-07   erg/cm2
              Error 4.11e-08 4.77e-08 6.60e-08 3.81e-08 9.51e-08 9.87e-08   erg/cm2
Peak flux Cutoff-PL 2.19e-02 3.54e-02 1.07e-02 2.62e-04 6.83e-02 6.83e-02   ph/cm2/s
              Error 2.06e-02 1.29e-02 7.90e-03 2.58e-03 2.57e-02 2.57e-02   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   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 52.67 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   89.312  179.024  268.336
T90    89.312  179.024  268.336
T50    89.312  179.024  268.336
Peak    1.000  241.688  242.688

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  192.8990 +25.9429 0.0467   38.1  -13.7       0.5311     4.1  TRIG_00853790       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [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
Time interval is from  179.024 sec. to  268.336 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  179.024 sec. to  268.336 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  179.024 sec. to  268.336 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                            

Peak spectrum fit

Power-law model
Time interval is from  241.688 sec. to  242.688 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  241.688 sec. to  242.688 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  241.688 sec. to  242.688 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 18 20:35:55 EDT 2018