batgrbproduct analysis for trigger=963260

batgrbproduct Analysis for Trigger=963260

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Wed Mar 25 12:28:20 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger963260/GCN5_download_cron
======================================================================

  Trigger: 00963260      Segment: 000

  BAT Trigger Time: 606760772.608   [s; MET]
      Trigger Stop: 606760776.704   [s; MET]
               UTC: 2020-03-24T16:39:07.954400    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 222.685467928864   Dec: 35.9684973487692  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.81
     Image Trigger?:     NO
     Rate S/N Ratio:     9.8488578017961  [ if not an image trigger ]
     Image S/N Ratio:    9.81

  Flight Position:   [ source = BAT ]
    RA: 222.685467928864   Dec: 35.9684973487692  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 222.682226870643   Dec: 35.9308195350745  [deg; J2000]  
        { 14h 50m 43.7s , +35d 55' 51.0" }
         +/- 1.06226372045613 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.315347905013189 [arcmin] (formal 1-sigma fit error)
    SNR: 27.9025307449652
 
  Angular difference between Flight and Ground position is 2.266143 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 127.743999958038 +/- 43.0813183773842
        Measured from: -28.7919999361038
                   to: 98.9520000219345     [s; relative to TRIGTIME]
     T50: 44.095999956131 +/- 20.7906440440316
        Measured from: -5.49599993228912
                   to: 38.6000000238419     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0719999074935913     
                   to: 1.07199990749359     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -38.1360000371933     
                   to: 140.487999916077     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.362410   1.675012   0.884404   0.244747
           0.136543   0.144645   0.129302   0.113408 [error]
 Peak      0.035940   0.034584   0.021153   0.006089
           0.006492   0.006821   0.005987   0.004881 [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 3.89e-07 6.26e-07 7.63e-07 1.83e-06 2.30e-06 3.60e-06   erg/cm2
              Error 4.92e-08 5.19e-08 9.66e-08 4.71e-07 2.27e-07 5.63e-07   erg/cm2
Peak flux Power-law 2.91e-01 2.51e-01 1.49e-01 1.32e-01 7.48e-01 8.23e-01   ph/cm2/s
              Error 9.55e-02 5.29e-02 5.13e-02 9.22e-02 1.57e-01 1.80e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.66e-07 6.68e-07 7.63e-07 7.69e-07 2.17e-06 2.56e-06   erg/cm2
              Error 5.51e-08 6.84e-08 1.06e-07 7.94e-07 2.57e-07 8.38e-07   erg/cm2
Peak flux Cutoff-PL 2.93e-01 2.51e-01 1.47e-01 1.28e-01 7.48e-01 8.20e-01   ph/cm2/s
              Error 9.44e-02 5.31e-02 5.13e-02 1.21e-01 1.57e-01 1.82e-01   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    1.715    0.148    -      -           1.79e-03 1.68e-04   69.650 57
CPL   1.183    0.608      68.7  -25.1      3.53e-03 3.12e-03   67.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.759    0.427    -      -           5.51e-03 1.42e-03   55.230 57
CPL   2.572    0.772     191.1    0.0      2.14e-03 0.00e+00   54.060 56
 
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: 73.728000 sec.
T50 in the 50-300 keV band: 26.752000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  178.624  -38.136  140.488
T90   127.744  -28.792   98.952
T50    44.096   -5.496   38.600
Peak    1.000    0.072    1.072

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  222.6822    35.9308   0.0069    18.7238     8.9286         3.0417965     27.903 TRIG_00963260                 
 
Foreground time interval of the image:
-38.136  29.193 (delta_t =  67.329 [sec])
Background time interval of the image:
-239.608 -38.136 (delta_t = 201.472 [sec])

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)

Spectral Evolution

Spectra

Notes:

Time averaged spectrum fit using the average DRM

Power-law model
Time interval is from  -38.136 sec. to  100.392 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.71546     ( -0.14626   0.149974 )
Norm@50keV  : 1.79423E-03    ( -0.000168654   0.000166443 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.65 using 59 PHA bins.
# Reduced chi-squared =          1.222 for     57 degrees of freedom 
# Null hypothesis probability =   1.213594e-01
 
Photon flux (15-150 keV)    in 138.5 sec: 0.239605 ( -0.019943  0.01995 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.29848e-06 ( -2.24902e-07  2.28317e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -38.136 sec. to  100.392 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18326     ( -0.652428   0.563152 )
Epeak [keV] : 68.6808      ( -18.473 -68.6808 )
Norm@50keV  : 3.52631E-03    ( -0.00176381   0.00447414 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.04 using 59 PHA bins.
# Reduced chi-squared =          1.197 for     56 degrees of freedom 
# Null hypothesis probability =   1.482329e-01
 
Photon flux (15-150 keV)    in 138.5 sec: 0.234430 ( -0.020678  0.020669 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.17831e-06 ( -2.54293e-07  2.59607e-07 ) ergs/cm2
 
Band function
Time interval is from  -38.136 sec. to  100.392 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.8695  (-1.2381  1.4084)
R^2/D10^2   : 6.02250E-02  (-0.0202201   0.0300929)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          96.28 using 59 PHA bins.
# Reduced chi-squared =          1.689 for     57 degrees of freedom 
# Null hypothesis probability =   8.879712e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.483e-07   3.622e-08
25- 50  7.714e-07   8.968e-08
50-150  6.487e-07   1.394e-07
15-150  1.668e-06   1.773e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 117.092       (-33.7993      61.7717)
Norm        : 1.02796       (-0.105618     0.124891)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.09 using 59 PHA bins.
# Reduced chi-squared =          1.177 for     57 degrees of freedom 
# Null hypothesis probability =   1.695986e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.712e-07   4.231e-08
25- 50  6.612e-07   7.583e-08
50-150  1.166e-06   4.291e-07
15-150  2.198e-06   5.401e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.23209        (-1.41591      1.68782)
R1^2/D10^2  : 0.411358        (-0.22338      0.614732)
kT2 [keV]   : 21.3914        (-4.61877      8.96033)
R2^2/D10^2  : 5.25423E-03    (-0.00384291   0.0064209)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.29 using 59 PHA bins.
# Reduced chi-squared =          1.187 for     55 degrees of freedom 
# Null hypothesis probability =   1.614338e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.723e-07   1.358e-07
25- 50  6.597e-07   2.301e-07
50-150  1.144e-06   6.116e-07
15-150  2.176e-06   8.155e-07

Peak spectrum fit

Power-law model
Time interval is from    0.072 sec. to    1.072 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.75856     ( -0.407872   0.446578 )
Norm@50keV  : 5.51197E-03    ( -0.00147109   0.00137347 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.23 using 59 PHA bins.
# Reduced chi-squared =         0.9689 for     57 degrees of freedom 
# Null hypothesis probability =   5.418985e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.747712 ( -0.157324  0.157333 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.0844e-08 ( -1.33976e-08  1.38956e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.072 sec. to    1.072 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.57158     ( -1.34363   0.20056 )
Epeak [keV] : 191.101      (   )
Norm@50keV  : 2.14212E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.06 using 59 PHA bins.
# Reduced chi-squared =         0.9653 for     56 degrees of freedom 
# Null hypothesis probability =   5.487300e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.533560 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.92555e-08 ( -1.60986e-08  1.36962e-08 ) ergs/cm2
 
Band function
Time interval is from    0.072 sec. to    1.072 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.61223  (-2.57195  4.19367)
R^2/D10^2   : 0.388448  (-0.283358   0.864744)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.29 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     57 degrees of freedom 
# Null hypothesis probability =   2.109591e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.203e-09   3.339e-09
25- 50  1.692e-08   7.479e-09
50-150  7.864e-09   4.560e-09
15-150  3.198e-08   1.250e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 124.833       (-75.9495      -124.711)
Norm        : 3.13400       (-0.7527     1.27917)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.58 using 59 PHA bins.
# Reduced chi-squared =         0.9926 for     57 degrees of freedom 
# Null hypothesis probability =   4.907898e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.149e-09   4.662e-09
25- 50  1.468e-08   8.190e-09
50-150  2.670e-08   1.768e-08
15-150  4.952e-08   3.041e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.74513        (-2.66644      2.87314)
R1^2/D10^2  : 1.26399        (-0.993501      6.94146)
kT2 [keV]   : 54.8173        (-40.7261      -60.5388)
R2^2/D10^2  : 1.04701E-03    (-0.00071993   0.0210232)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.29 using 59 PHA bins.
# Reduced chi-squared =         0.9870 for     55 degrees of freedom 
# Null hypothesis probability =   5.018209e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.195e-09   5.450e-09
25- 50  1.365e-08   7.430e-09
50-150  3.298e-08   1.980e-08
15-150  5.583e-08   3.059e-08
Plot creation:
Wed Mar 25 15:13:24 EDT 2020