batgrbproduct analysis for trigger=1191903

batgrbproduct Analysis for Trigger=1191903

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Sep 14 18:09:07 EDT 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1191903/GCN5_download_cron
======================================================================

  Trigger: 01191903      Segment: 000

  BAT Trigger Time: 716316288   [s; MET]
      Trigger Stop: 716316352   [s; MET]
               UTC: 2023-09-13T16:44:15.997400    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 299.694660144272   Dec: 35.4336623117075  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    16.14
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    16.14

  Flight Position:   [ source = BAT ]
    RA: 299.694660144272   Dec: 35.4336623117075  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 299.674314836965   Dec: 35.4055399673496  [deg; J2000]  
        { 19h 58m 41.8s , +35d 24' 19.9" }
         +/- 1.14544912684688 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.511860307836555 [arcmin] (formal 1-sigma fit error)
    SNR: 25.0534321259992
 
  Angular difference between Flight and Ground position is 1.958761 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.958549   1.174383   0.608549   0.206325
           0.050564   0.051467   0.042675   0.034755 [error]
 Peak      0.958549   1.174383   0.608549   0.206325
           0.050564   0.051467   0.042675   0.034755 [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 2.86e-07 4.36e-07 4.99e-07 1.09e-06 1.55e-06 2.31e-06   erg/cm2
              Error 2.48e-08 2.38e-08 4.12e-08 1.87e-07 9.57e-08 2.24e-07   erg/cm2
Peak flux Power-law 1.45e-01 1.22e-01 6.97e-02 5.92e-02 3.62e-01 3.95e-01   ph/cm2/s
              Error 1.28e-02 6.71e-03 5.55e-03 9.40e-03 2.01e-02 2.14e-02   ph/cm2/s
 
Fluence   Cutoff-PL 2.77e-07 4.50e-07 4.98e-07 6.65e-07 1.50e-06 1.89e-06   erg/cm2
              Error 2.78e-08 3.07e-08 4.34e-08 3.61e-07 1.15e-07 4.58e-07   erg/cm2
Peak flux Cutoff-PL 1.40e-01 1.25e-01 7.00e-02 4.02e-02 3.57e-01 3.75e-01   ph/cm2/s
              Error 1.46e-02 8.47e-03 5.81e-03 2.27e-02 2.12e-02 3.11e-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    1.805    0.101    -      -           2.62e-03 1.58e-04   63.400 57
CPL   1.525    0.388      75.5  -26.6      3.74e-03 1.95e-03   61.890 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.805    0.101    -      -           2.62e-03 1.58e-04   63.400 57
CPL   1.525    0.388      75.5  -26.6      3.74e-03 1.95e-03   61.890 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  299.6743 +35.4055 0.0077    5.9 -158.8       3.0532    25.1  TRIG_01191903       
------------------------------------------
 
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    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.80521     ( -0.0998138   0.101244 )
Norm@50keV  : 2.62326E-03    ( -0.000159143   0.000157787 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.40 using 59 PHA bins.
# Reduced chi-squared =          1.112 for     57 degrees of freedom 
# Null hypothesis probability =   2.609500e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.362212 ( -0.0200488  0.0200694 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.54531e-06 ( -9.53421e-08  9.60845e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52480     ( -0.430808   0.34504 )
Epeak [keV] : 75.5412      ( -22.2527 -75.5493 )
Norm@50keV  : 3.74400E-03    ( -0.00122387   0.00268152 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.89 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     56 degrees of freedom 
# Null hypothesis probability =   2.739770e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.357201 ( -0.021179  0.021156 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4999e-06 ( -1.14835e-07  1.14458e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.76630   ( -2.18457   -1.14586 )
beta        : -1.97927    ( -0.22184   0.158824 )
Epeak [keV] : 28.9232      ( -6.33887 15.8102 )
Norm@50keV   : 0.896702    ( -0.899652   119.377 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.90 using 59 PHA bins.
# Reduced chi-squared =         0.9981 for     55 degrees of freedom 
# Null hypothesis probability =   4.785817e-01
 
Photon flux (15-150 keV)    in 64 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]    : 11.0023  (  )
R^2/D10^2   : 0.117070  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         130.64 using 59 PHA bins.
# Reduced chi-squared =         2.2919 for     57 degrees of freedom 
# Null hypothesis probability =   1.039380e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.895e-07   2.048e-08
25- 50  5.360e-07   3.229e-08
50-150  3.666e-07   5.395e-08
15-150  1.092e-06   6.944e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 98.5854       (-18.9285      27.2566)
Norm        : 1.59634       (-0.1265     0.142579)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.670e-07   2.566e-08
25- 50  4.604e-07   2.893e-08
50-150  7.400e-07   2.163e-07
15-150  1.467e-06   2.288e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.70793        (-0.89627      0.901506)
R1^2/D10^2  : 0.358693        (-0.112855      0.186104)
kT2 [keV]   : 34.0541        (-8.79229      18.4466)
R2^2/D10^2  : 1.33913E-03    (-0.000946561   0.00234855)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.584e-07   6.810e-08
25- 50  4.594e-07   9.270e-08
50-150  7.096e-07   3.608e-07
15-150  1.427e-06   4.533e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.80521     ( -0.0998138   0.101244 )
Norm@50keV  : 2.62326E-03    ( -0.000159143   0.000157787 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.40 using 59 PHA bins.
# Reduced chi-squared =          1.112 for     57 degrees of freedom 
# Null hypothesis probability =   2.609500e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.362212 ( -0.0200488  0.0200694 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.54531e-06 ( -9.53421e-08  9.60845e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52480     ( -0.430808   0.34504 )
Epeak [keV] : 75.5412      ( -22.2527 -75.5493 )
Norm@50keV  : 3.74400E-03    ( -0.00122387   0.00268152 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.89 using 59 PHA bins.
# Reduced chi-squared =          1.105 for     56 degrees of freedom 
# Null hypothesis probability =   2.739770e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.357201 ( -0.021179  0.021156 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4999e-06 ( -1.14835e-07  1.14458e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 1.76630   ( -2.18457   -1.14586 )
beta        : -1.97927    ( -0.22184   0.158824 )
Epeak [keV] : 28.9232      ( -6.33887 15.8102 )
Norm@50keV   : 0.896702    ( -0.899652   119.379 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.90 using 59 PHA bins.
# Reduced chi-squared =         0.9981 for     55 degrees of freedom 
# Null hypothesis probability =   4.785817e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.0023  (  )
R^2/D10^2   : 0.117070  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.895e-07   1.968e-08
25- 50  5.360e-07   3.277e-08
50-150  3.666e-07   4.982e-08
15-150  1.092e-06   6.720e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 98.5854       (-18.9285      27.2566)
Norm        : 1.59634       (-0.1265     0.142579)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.670e-07   2.528e-08
25- 50  4.604e-07   2.870e-08
50-150  7.400e-07   2.229e-07
15-150  1.467e-06   2.326e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.70793        (-0.89627      0.901506)
R1^2/D10^2  : 0.358693        (-0.112855      0.186104)
kT2 [keV]   : 34.0541        (-8.79229      18.4466)
R2^2/D10^2  : 1.33913E-03    (-0.000946561   0.00234855)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.584e-07   6.675e-08
25- 50  4.594e-07   8.458e-08
50-150  7.096e-07   3.627e-07
15-150  1.427e-06   4.737e-07
Plot creation:
Thu Sep 14 18:11:10 EDT 2023