batgrbproduct analysis for trigger=1163119

batgrbproduct Analysis for Trigger=1163119

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Apr  6 21:24:16 EDT 2023
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1163119/GCN5_download_cron
======================================================================

  Trigger: 01163119      Segment: 000

  BAT Trigger Time: 702417514.56   [s; MET]
      Trigger Stop: 702417515.072   [s; MET]
               UTC: 2023-04-05T19:58:03.507020    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 271.467274097228   Dec: -47.0704638653042  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.59
     Image Trigger?:     NO
     Rate S/N Ratio:     22.9128784747792  [ if not an image trigger ]
     Image S/N Ratio:    9.59

  Flight Position:   [ source = BAT ]
    RA: 271.467274097228   Dec: -47.0704638653042  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 271.436276873485   Dec: -47.0716709094021  [deg; J2000]  
        { 18h 05m 44.7s , -47d 04' 18.0" }
         +/- 0.782638578934948 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.248751372519975 [arcmin] (formal 1-sigma fit error)
    SNR: 43.1691735430583
 
  Angular difference between Flight and Ground position is 1.268784 arcmin
 
  Partial Coding Fraction: 0.9453125    [ including projection effects ]

  Duration
     T90: 14.135999917984 +/- 5.59268845486081
        Measured from: -7.01199984550476
                   to: 7.12400007247925     [s; relative to TRIGTIME]
     T50: 1.85199999809265 +/- 0.167475413189009
        Measured from: 1.51600015163422
                   to: 3.36800014972687     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.91600000858307     
                   to: 2.91600000858307     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -19.0319999456406     
                   to: 12.6560000181198     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.230514   2.135315   1.878559   0.564500
           0.059855   0.057780   0.050983   0.039580 [error]
 Peak      0.312170   0.639511   0.739691   0.234505
           0.015844   0.019923   0.021440   0.014702 [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 3.69e-07 8.11e-07 1.41e-06 5.65e-06 3.85e-06 8.24e-06   erg/cm2
              Error 2.41e-08 3.09e-08 4.97e-08 4.69e-07 1.27e-07 4.91e-07   erg/cm2
Peak flux Power-law 2.88e+00 4.20e+00 4.56e+00 9.24e+00 1.45e+01 2.09e+01   ph/cm2/s
              Error 2.02e-01 1.78e-01 1.64e-01 7.23e-01 4.90e-01 8.15e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.46e-07 8.23e-07 1.44e-06 4.06e-06 3.79e-06 6.67e-06   erg/cm2
              Error 3.11e-08 3.31e-08 5.85e-08 8.60e-07 1.37e-07 1.16e-06   erg/cm2
Peak flux Cutoff-PL 2.53e+00 4.28e+00 4.82e+00 6.06e+00 1.43e+01 1.77e+01   ph/cm2/s
              Error 2.60e-01 1.91e-01 2.14e-01 1.30e+00 5.04e-01 1.38e+00   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    1.207    0.057    -      -           1.20e-02 3.73e-04   60.770 57
CPL   0.954    0.231     235.7  474.5      1.55e-02 3.58e-03   57.060 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.883    0.058    -      -           1.26e-01 4.27e-03   44.490 57
CPL   0.426    0.246     205.6  102.1      1.98e-01 4.74e-02   33.370 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: 4.480000 sec.
T50 in the 50-300 keV band: 1.280000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   31.688  -19.032   12.656
T90    14.136   -7.012    7.124
T50     1.852    1.516    3.368
Peak    1.000    1.916    2.916

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  271.4363 -47.0717 0.0045   11.1 -102.9       5.8414    43.2  TRIG_01163119       
------------------------------------------
 
Foreground time interval of the image:
-19.032   9.641 (delta_t =  28.673 [sec])
Background time interval of the image:
-239.560 -210.620 (delta_t =  28.940 [sec])
-209.560 -159.210 (delta_t =  50.350 [sec])
-158.560 -45.150 (delta_t = 113.410 [sec])
-43.560 -35.360 (delta_t =   8.200 [sec])
-34.560 -24.450 (delta_t =  10.110 [sec])
-23.560 -21.750 (delta_t =   1.810 [sec])
-20.560 -19.032 (delta_t =   1.528 [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)

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from  -19.032 sec. to   12.656 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.20712     ( -0.0575192   0.0571824 )
Norm@50keV  : 1.19879E-02    ( -0.000373298   0.000373063 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.77 using 59 PHA bins.
# Reduced chi-squared =          1.066 for     57 degrees of freedom 
# Null hypothesis probability =   3.417036e-01
 
Photon flux (15-150 keV)    in 31.69 sec: 1.40855 ( -0.0468394  0.0469518 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.8465e-06 ( -1.26692e-07  1.26913e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -19.032 sec. to   12.656 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.953973     ( -0.237503   0.224598 )
Epeak [keV] : 235.707      ( -86.3663 862.603 )
Norm@50keV  : 1.55246E-02    ( -0.00305428   0.00411095 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.06 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     56 degrees of freedom 
# Null hypothesis probability =   4.356037e-01
 
Photon flux (15-150 keV)    in 31.69 sec: 1.38676 ( -0.05036  0.05047 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.79196e-06 ( -1.37471e-07  1.36837e-07 ) ergs/cm2
 
Band function
Time interval is from  -19.032 sec. to   12.656 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.993230   ( -2.03687   -0.994645 )
beta        : -1.26427    ( 1.26427   0.0734831 )
Epeak [keV] : 39.7440      ( -13.2538 68.4002 )
Norm@50keV   : 0.371335    ( -0.374844   227.073 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.23 using 59 PHA bins.
# Reduced chi-squared =          1.004 for     55 degrees of freedom 
# Null hypothesis probability =   4.659500e-01
 
Photon flux (15-150 keV)    in 31.69 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]    : 19.9764  (  )
R^2/D10^2   : 6.37288E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         223.12 using 59 PHA bins.
# Reduced chi-squared =         3.9144 for     57 degrees of freedom 
# Null hypothesis probability =   1.656619e-21
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.554e-07   1.036e-08
25- 50  7.736e-07   3.660e-08
50-150  2.288e-06   1.147e-07
15-150  3.217e-06   1.139e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 5.98309       (     )
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.721e-07   1.711e-08
25- 50  9.082e-07   3.042e-08
50-150  1.992e-06   6.623e-08
15-150  3.372e-06   1.125e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.27027        (-1.13756      1.32973)
R1^2/D10^2  : 0.657996        (-0.235793      0.400218)
kT2 [keV]   : 31.8634        (-3.67326      5.73248)
R2^2/D10^2  : 1.16117E-02    (-0.00491488   0.00611075)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.203e-07   4.015e-08
25- 50  8.448e-07   7.035e-08
50-150  2.628e-06   2.686e-07
15-150  3.793e-06   3.423e-07

Peak spectrum fit

Power-law model
Time interval is from    1.916 sec. to    2.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.882575     ( -0.0583175   0.057956 )
Norm@50keV  : 0.126192    ( -0.00427091   0.00426553 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.49 using 59 PHA bins.
# Reduced chi-squared =         0.7806 for     57 degrees of freedom 
# Null hypothesis probability =   8.861569e-01
 
Photon flux (15-150 keV)    in 1 sec: 14.4828 ( -0.489844  0.490028 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4259e-06 ( -5.26437e-08  5.27458e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.916 sec. to    2.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.426062     ( -0.253065   0.239215 )
Epeak [keV] : 205.594      ( -52.2011 151.97 )
Norm@50keV  : 0.198165    ( -0.0407207   0.0541743 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          33.37 using 59 PHA bins.
# Reduced chi-squared =         0.5959 for     56 degrees of freedom 
# Null hypothesis probability =   9.929868e-01
 
Photon flux (15-150 keV)    in 1 sec: 14.2507 ( -0.5036  0.5036 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.40323e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    1.916 sec. to    2.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99997   ( -0.000102185   -4.99997 )
beta        : -0.926110    ( -0.0639332   0.0635053 )
Epeak [keV] : 29.0409      ( -8.53144 4.77766 )
Norm@50keV   : 3232.82    ( -107.166   20712.1 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.08 using 59 PHA bins.
# Reduced chi-squared =         0.7469 for     55 degrees of freedom 
# Null hypothesis probability =   9.183646e-01
 
Photon flux (15-150 keV)    in 1 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]    : 23.8333  (  )
R^2/D10^2   : 0.423425  (   )
(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  4.283e-08   2.855e-09
25- 50  2.370e-07   1.185e-08
50-150  1.003e-06   5.395e-08
15-150  1.283e-06   5.300e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 56.3617       (     )
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.404e-07   5.600e-09
25- 50  2.700e-07   9.800e-09
50-150  5.921e-07   2.315e-08
15-150  1.002e-06   3.705e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.16295        (-1.70719      2.05513)
R1^2/D10^2  : 3.46397        (-1.39816      2.79979)
kT2 [keV]   : 34.9370        (-4.15231      6.94373)
R2^2/D10^2  : 0.114082    (-0.0504043   0.0590699)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.688e-08   1.095e-08
25- 50  2.539e-07   2.915e-08
50-150  1.082e-06   1.322e-07
15-150  1.413e-06   1.575e-07
Plot creation:
Thu Apr  6 21:27:15 EDT 2023