batgrbproduct analysis for trigger=972010

batgrbproduct Analysis for Trigger=972010

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.47
    Process Start Time (local time): Thu May 14 20:48:36 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger972010/GCN5_download_cron
======================================================================

  Trigger: 00972010      Segment: 000

  BAT Trigger Time: 611069256   [s; MET]
      Trigger Stop: 611069576   [s; MET]
               UTC: 2020-05-13T13:27:11.066340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 245.053948228478   Dec: -15.3916049277441  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    9.01
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.01

  Flight Position:   [ source = BAT ]
    RA: 245.053948228478   Dec: -15.3916049277441  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 245.034177977384   Dec: -15.5356852363674  [deg; J2000]  
        { 16h 20m 08.2s , -15d 32' 08.5" }
         +/- 1.54978973806079 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.58553262789129 [arcmin] (formal 1-sigma fit error)
    SNR: 16.2667248836084
 
  Angular difference between Flight and Ground position is 8.720090 arcmin
 
  Partial Coding Fraction: 0.4335938    [ including projection effects ]

  Duration
     T90: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]
     T50: 320 +/- 
        Measured from: 0
                   to: 320     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 320 second)
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 320     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.816684   0.137859   0.007944   0.002615
           0.058450   0.051673   0.043160   0.036335 [error]
 Peak      0.816684   0.137859   0.007944   0.002615
           0.058450   0.051673   0.043160   0.036335 [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 2.65e-07 5.22e-08 5.06e-09 5.36e-10 3.22e-07 3.22e-07   erg/cm2
              Error 4.03e-08 2.27e-08 5.20e-09 1.12e-09 5.47e-08 5.48e-08   erg/cm2
Peak flux Power-law 2.79e-01 3.20e-02 1.55e-03 7.89e-05 3.13e-01 3.13e-01   ph/cm2/s
              Error 4.29e-02 1.32e-02 1.55e-03 1.57e-04 4.82e-02 4.82e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.73e-07 3.78e-08 4.13e-10 1.21e-13 3.11e-07 3.11e-07   erg/cm2
              Error 4.49e-08 3.29e-08 5.82e-09 3.04e-10 5.69e-08 5.55e-08   erg/cm2
Peak flux Cutoff-PL 2.87e-01 2.43e-02 1.41e-04 2.19e-08 3.11e-01 3.11e-01   ph/cm2/s
              Error 4.74e-02 1.95e-02 1.72e-03 1.45e-04 4.75e-02 4.75e-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    5.365    0.769    -      -           1.43e-04 1.15e-04   50.020 57
CPL   1.000    0.000      50.0    0.0      3.09e-03 0.00e+00  133.060 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    5.365    0.769    -      -           1.43e-04 1.15e-04   50.020 57
CPL   1.000    0.000      50.0    0.0      3.09e-03 0.00e+00  133.060 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  320.000    0.000  320.000
T90   320.000    0.000  320.000
T50   320.000    0.000  320.000
Peak  320.000    0.000  320.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  245.0342 -15.5357 0.0118   29.1   92.0       1.6887    16.3  TRIG_00972010       
------------------------------------------
 
Foreground time interval of the image:
  0.000  33.070 (delta_t =  33.070 [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    0.000 sec. to   33.070 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.36510     ( -0.725148   0.813566 )
Norm@50keV  : 1.42513E-04    ( -8.27238e-05   0.000148046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.02 using 59 PHA bins.
# Reduced chi-squared =         0.8776 for     57 degrees of freedom 
# Null hypothesis probability =   7.321344e-01
 
Photon flux (15-150 keV)    in 33.07 sec: 0.312773 ( -0.0481475  0.0481687 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.22286e-07 ( -5.40208e-08  5.54131e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.070 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 3.08770E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         133.06 using 59 PHA bins.
# Reduced chi-squared =         2.3761 for     56 degrees of freedom 
# Null hypothesis probability =   3.236640e-08
 
Photon flux (15-150 keV)    in 33.07 sec: 0.311406 ( -0.047464  0.047471 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.10871e-07 ( -5.02767e-08  6.35347e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.070 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.99999   ( 9.99999   9.99999 )
beta        : -5.41906    ( -0.770023   0.772714 )
Epeak [keV] : 1.91217      ( -1.91217 -1.91217 )
Norm@50keV   : 1.83011E-02    ( -0.0104954   0.0209163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.03 using 59 PHA bins.
# Reduced chi-squared =         0.9097 for     55 degrees of freedom 
# Null hypothesis probability =   6.643492e-01
 
Photon flux (15-150 keV)    in 33.07 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]    : 2.59409  (-0.358584  0.433205)
R^2/D10^2   : 118.735  (-118.735   242.61)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.33 using 59 PHA bins.
# Reduced chi-squared =         0.8829 for     57 degrees of freedom 
# Null hypothesis probability =   7.218047e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.805e-07   1.375e-07
25- 50  2.389e-08   1.436e-08
50-150  1.077e-11   1.160e-11
15-150  3.044e-07   1.650e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.90196       (-1.00691      1.42009)
Norm        : 77.4243       (-44.7939     116.133)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.77 using 59 PHA bins.
# Reduced chi-squared =         0.8731 for     57 degrees of freedom 
# Null hypothesis probability =   7.405503e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.756e-07   1.121e-07
25- 50  3.329e-08   1.768e-08
50-150  1.560e-10   1.595e-10
15-150  3.090e-07   1.488e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.68516E-04        (0.000229998      -0.000168516)
R1^2/D10^2  : 2.00713E+06        (-2.00713e+06      -2.00713e+06)
kT2 [keV]   : 2.59406        (-0.358537      0.43325)
R2^2/D10^2  : 118.747    (-118.749   242.595)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.29 using 59 PHA bins.
#Fit statistic : Chi-Squared =          50.33 using 59 PHA bins.
# Reduced chi-squared =         0.9871 for     55 degrees of freedom 
# Reduced chi-squared =         0.9150 for     55 degrees of freedom 
# Null hypothesis probability =   5.017692e-01
# Null hypothesis probability =   6.535420e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.640e-07   9.055e-03
25- 50  4.458e-08   5.567e-02
50-150  1.010e-10   1.731e+00
15-150  3.087e-07   1.878e+00

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   33.070 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 5.36510     ( -0.725148   0.813566 )
Norm@50keV  : 1.42513E-04    ( -8.27238e-05   0.000148046 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.02 using 59 PHA bins.
# Reduced chi-squared =         0.8776 for     57 degrees of freedom 
# Null hypothesis probability =   7.321344e-01
 
Photon flux (15-150 keV)    in 33.07 sec: 0.312773 ( -0.0481475  0.0481687 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.22286e-07 ( -5.40208e-08  5.54131e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   33.070 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00000     (     )
Epeak [keV] : 50.0000      (   )
Norm@50keV  : 3.08770E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         133.06 using 59 PHA bins.
# Reduced chi-squared =         2.3761 for     56 degrees of freedom 
# Null hypothesis probability =   3.236640e-08
 
Photon flux (15-150 keV)    in 33.07 sec: 0.311406 ( -0.047464  0.047471 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.10871e-07 ( -5.02767e-08  6.35347e-08 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   33.070 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -9.99999   ( 9.99999   9.99999 )
beta        : -5.41906    ( -0.770023   0.772714 )
Epeak [keV] : 1.91217      ( -1.91217 -1.91217 )
Norm@50keV   : 1.83011E-02    ( -0.0104954   0.0209163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.03 using 59 PHA bins.
# Reduced chi-squared =         0.9097 for     55 degrees of freedom 
# Null hypothesis probability =   6.643492e-01
 
Photon flux (15-150 keV)    in 33.07 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]    : 2.59409  (-0.358584  0.433205)
R^2/D10^2   : 118.735  (-118.735   242.61)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.33 using 59 PHA bins.
# Reduced chi-squared =         0.8829 for     57 degrees of freedom 
# Null hypothesis probability =   7.218047e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.805e-07   1.371e-07
25- 50  2.389e-08   1.455e-08
50-150  1.077e-11   1.150e-11
15-150  3.044e-07   1.616e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 4.90196       (-1.00691      1.42009)
Norm        : 77.4243       (-44.7939     116.133)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.77 using 59 PHA bins.
# Reduced chi-squared =         0.8731 for     57 degrees of freedom 
# Null hypothesis probability =   7.405503e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.756e-07   1.206e-07
25- 50  3.329e-08   1.745e-08
50-150  1.560e-10   1.583e-10
15-150  3.090e-07   1.429e-07
Double BB
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.68516E-04        (0.000229998      -0.000168516)
R1^2/D10^2  : 2.00713E+06        (-2.00713e+06      -2.00713e+06)
kT2 [keV]   : 2.59406        (-0.358537      0.43325)
R2^2/D10^2  : 118.747    (-118.749   242.595)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.29 using 59 PHA bins.
#Fit statistic : Chi-Squared =          50.33 using 59 PHA bins.
# Reduced chi-squared =         0.9871 for     55 degrees of freedom 
# Reduced chi-squared =         0.9150 for     55 degrees of freedom 
# Null hypothesis probability =   5.017692e-01
# Null hypothesis probability =   6.535420e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.640e-07   8.297e-03
25- 50  4.458e-08   6.445e-02
50-150  1.010e-10   1.690e+00
15-150  3.087e-07   1.563e+00
Plot creation:
Thu May 14 20:51:21 EDT 2020