batgrbproduct analysis for trigger=1093860

batgrbproduct Analysis for Trigger=1093860

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sat Feb 19 19:07:31 EST 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1093860/GCN5_download_cron
======================================================================

  Trigger: 01093860      Segment: 000

  BAT Trigger Time: 666916168   [s; MET]
      Trigger Stop: 666916232   [s; MET]
               UTC: 2022-02-18T22:28:59.357780    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 133.830146896997   Dec: 31.9839890538763  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.61
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    10.61

  Flight Position:   [ source = BAT ]
    RA: 133.830146896997   Dec: 31.9839890538763  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 133.810849397303   Dec: 31.9664254341173  [deg; J2000]  
        { 08h 55m 14.6s , +31d 57' 59.1" }
         +/- 1.5534043183762 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.568357675215151 [arcmin] (formal 1-sigma fit error)
    SNR: 16.2126794810436
 
  Angular difference between Flight and Ground position is 1.440557 arcmin
 
  Partial Coding Fraction: 1    [ including projection effects ]

  Duration
     T90: 270.223999977112 +/- 48.3719876288306
        Measured from: 42.9160001277924
                   to: 313.140000104904     [s; relative to TRIGTIME]
     T50: 133.927999973297 +/- 15.1976630646457
        Measured from: 86.9800001382828
                   to: 220.90800011158     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 183.240000009537     
                   to: 184.240000009537     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 25.7519999742508     
                   to: 368.475999951363     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.530787   2.689889   1.810341   0.421297
           0.131465   0.135084   0.117521   0.101483 [error]
 Peak      0.026679   0.042609   0.019890   0.011786
           0.007416   0.007496   0.007051   0.005963 [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 7.06e-07 1.13e-06 1.36e-06 3.20e-06 4.11e-06 6.39e-06   erg/cm2
              Error 6.71e-08 6.43e-08 1.17e-07 5.85e-07 2.68e-07 6.81e-07   erg/cm2
Peak flux Power-law 2.79e-01 2.48e-01 1.52e-01 1.42e-01 7.40e-01 8.21e-01   ph/cm2/s
              Error 9.58e-02 5.75e-02 5.54e-02 1.03e-01 1.71e-01 2.01e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.00e-07 1.14e-06 1.36e-06 2.85e-06 4.09e-06 6.01e-06   erg/cm2
              Error 7.55e-08 7.42e-08 1.16e-07 1.15e-06 3.00e-07 1.06e-06   erg/cm2
Peak flux Cutoff-PL 2.80e-01 2.48e-01 1.51e-01 1.30e-01 7.39e-01 8.03e-01   ph/cm2/s
              Error 7.44e-02 5.75e-02 4.85e-02 1.40e-01 1.71e-01 2.35e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.43e-01 1.64e-01 1.36e-01 1.87e-01 5.10e-01 6.28e-01   ph/cm2/s
              Error 8.96e-02 6.11e-02 5.43e-02 -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.731    0.109    -      -           1.31e-03 8.08e-05   54.090 57
CPL   1.666    0.390     221.2    0.0      1.41e-03 0.00e+00   54.010 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.705    0.435    -      -           5.56e-03 1.54e-03   70.030 57
CPL   1.654    3.477     271.5   -1.8      5.97e-03 0.00e+00   70.040 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: 235.200000 sec.
T50 in the 50-300 keV band: 119.296000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  342.724   25.752  368.476
T90   270.224   42.916  313.140
T50   133.928   86.980  220.908
Peak    1.000  183.240  184.240

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  133.8108 +31.9664 0.0119   13.2   19.0       5.9876    16.2  TRIG_01093860       
------------------------------------------
 
Foreground time interval of the image:
 25.752 135.570 (delta_t = 109.818 [sec])
137.000 197.130 (delta_t =  60.130 [sec])
198.000 368.476 (delta_t = 170.476 [sec])
Background time interval of the image:
-239.000  25.752 (delta_t = 264.752 [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
Multiple GTIs in the spectrum
tstart tstop
25.752000 135.570000
137.000000 197.130000
198.000000 368.476000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.73125     ( -0.108374   0.110036 )
Norm@50keV  : 1.30790E-03    ( -8.121e-05   8.04603e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.09 using 59 PHA bins.
# Reduced chi-squared =         0.9489 for     57 degrees of freedom 
# Null hypothesis probability =   5.850736e-01
 
Photon flux (15-150 keV)    in 340.4 sec: 0.175643 ( -0.0101039  0.0101242 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.11285e-06 ( -2.66537e-07  2.68958e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
25.752000 135.570000
137.000000 197.130000
198.000000 368.476000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66639     ( -0.423139   0.356748 )
Epeak [keV] : 221.176      (   )
Norm@50keV  : 1.41352E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.01 using 59 PHA bins.
# Reduced chi-squared =         0.9645 for     56 degrees of freedom 
# Null hypothesis probability =   5.504216e-01
 
Photon flux (15-150 keV)    in 340.4 sec: 0.174964 ( -0.010885  0.010567 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.08899e-06 ( -3.10955e-07  2.89102e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
25.752000 135.570000
137.000000 197.130000
198.000000 368.476000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.780461   ( 1.44779   1.44779 )
beta        : -1.74973    ( 1.73798   0.113262 )
Epeak [keV] : 23.1118      ( -31.6554 134.494 )
Norm@50keV   : 0.147132    ( -0.147048   271.471 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.85 using 59 PHA bins.
# Reduced chi-squared =         0.9791 for     55 degrees of freedom 
# Null hypothesis probability =   5.185140e-01
 
Photon flux (15-150 keV)    in 340.4 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]    : 12.8882  (  )
R^2/D10^2   : 3.13683E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         137.86 using 59 PHA bins.
# Reduced chi-squared =         2.4186 for     57 degrees of freedom 
# Null hypothesis probability =   1.192597e-08
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.762e-07   4.012e-08
25- 50  1.284e-06   9.276e-08
50-150  1.341e-06   1.741e-07
15-150  3.001e-06   2.083e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 133.786       (-33.8244      43.8101)
Norm        : 0.717566       (-0.0496314     0.0638914)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.327e-07   5.412e-08
25- 50  1.152e-06   1.011e-07
50-150  2.165e-06   7.150e-07
15-150  3.950e-06   8.166e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.37826        (-0.886523      1.04532)
R1^2/D10^2  : 0.538513        (-0.26517      0.594979)
kT2 [keV]   : 21.3474        (-2.94051      4.24297)
R2^2/D10^2  : 4.14873E-03    (-0.00202836   0.00311697)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.124e-07   1.544e-07
25- 50  1.087e-06   1.450e-07
50-150  2.158e-06   4.578e-07
15-150  3.958e-06   6.878e-07

Peak spectrum fit

Power-law model
Time interval is from  183.240 sec. to  184.240 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70492     ( -0.419786   0.450336 )
Norm@50keV  : 5.55933E-03    ( -0.00157538   0.00150394 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.03 using 59 PHA bins.
# Reduced chi-squared =          1.229 for     57 degrees of freedom 
# Null hypothesis probability =   1.151522e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.739613 ( -0.171093  0.171093 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.14533e-08 ( -1.46715e-08  1.55224e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  183.240 sec. to  184.240 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.65376     ( -5.4216   1.53261 )
Epeak [keV] : 271.495      ( -340.187 -343.857 )
Norm@50keV  : 5.96887E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.04 using 59 PHA bins.
# Reduced chi-squared =          1.251 for     56 degrees of freedom 
# Null hypothesis probability =   9.828322e-02
 
Photon flux (15-150 keV)    in 1 sec: 0.739401 ( -0.171088  0.171033 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.1388e-08 ( -2.32096e-08  1.11806e-08 ) ergs/cm2
 
Band function
Time interval is from  183.240 sec. to  184.240 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.64843   ( -4.64843   -4.64843 )
beta        : -2.35299    ( -1.63594   0.772897 )
Epeak [keV] : 31.0119      ( -7.93492 6.96489 )
Norm@50keV   : 122.781    ( -28.0537   5.35059e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.77 using 59 PHA bins.
# Reduced chi-squared =          1.250 for     55 degrees of freedom 
# Null hypothesis probability =   1.004054e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.510298 (    ) 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]    : 9.49705  (-2.07343  3.005)
R^2/D10^2   : 0.428228  (-0.276685   0.655678)
(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  7.713e-09   3.648e-09
25- 50  1.779e-08   8.721e-09
50-150  7.982e-09   5.212e-09
15-150  3.349e-08   1.501e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.8789       (-55.8472      -99.9194)
Norm        : 3.27121       (-0.914196     1.31013)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.550e-09   4.045e-09
25- 50  1.478e-08   8.965e-09
50-150  2.394e-08   1.872e-08
15-150  4.727e-08   3.108e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.20817        (-1.92662      2.1707)
R1^2/D10^2  : 0.672714        (-0.412767      1.07685)
kT2 [keV]   : 199.360        (-199.363      -199.363)
R2^2/D10^2  : 9.04117E-05    (-6.19945e-05   0.00411934)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.464e-09   5.028e-09
25- 50  1.625e-08   9.615e-09
50-150  2.830e-08   6.215e-09
15-150  5.302e-08   2.124e-08
Plot creation:
Sat Feb 19 19:16:23 EST 2022