batgrbproduct analysis for trigger=1091101

batgrbproduct Analysis for Trigger=1091101

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Tue Dec 28 17:01:43 EST 2021
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1091101/GCN5_download_cron
======================================================================

  Trigger: 01091101      Segment: 000

  BAT Trigger Time: 662340755.2   [s; MET]
      Trigger Stop: 662340755.456   [s; MET]
               UTC: 2021-12-27T23:32:06.866680    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 132.125661624793   Dec: -2.70188941470638  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.71
     Image Trigger?:     NO
     Rate S/N Ratio:     18  [ if not an image trigger ]
     Image S/N Ratio:    8.71

  Flight Position:   [ source = BAT ]
    RA: 132.125661624793   Dec: -2.70188941470638  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 132.143787466812   Dec: -2.73636582188429  [deg; J2000]  
        { 08h 48m 34.5s , -02d 44' 10.9" }
         +/- 1.43923060630727 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.484867467293381 [arcmin] (formal 1-sigma fit error)
    SNR: 18.0808077532643
 
  Angular difference between Flight and Ground position is 2.336481 arcmin
 
  Partial Coding Fraction: 0.4101562    [ including projection effects ]

  Duration
     T90: 83.7919999361038 +/- 8.46928009156226
        Measured from: 1.11600005626678
                   to: 84.9079999923706     [s; relative to TRIGTIME]
     T50: 29.5879999399185 +/- 1.27205659334675
        Measured from: 16.3120000362396
                   to: 45.8999999761581     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0640000104904175     
                   to: 1.06400001049042     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0399999618530273     
                   to: 126.303999900818     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.417251   4.796886   3.515281   0.778328
           0.092279   0.098482   0.090128   0.081218 [error]
 Peak      0.182036   0.245740   0.135120   0.017881
           0.014934   0.017254   0.014550   0.011403 [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 1.21e-06 2.09e-06 2.75e-06 7.39e-06 8.05e-06 1.34e-05   erg/cm2
              Error 6.33e-08 6.27e-08 9.61e-08 5.84e-07 2.30e-07 6.40e-07   erg/cm2
Peak flux Power-law 2.01e+00 1.72e+00 1.01e+00 8.80e-01 5.12e+00 5.62e+00   ph/cm2/s
              Error 2.54e-01 1.43e-01 1.22e-01 2.05e-01 4.27e-01 4.69e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.13e-06 2.13e-06 2.81e-06 4.96e-06 7.87e-06 1.10e-05   erg/cm2
              Error 8.10e-08 6.95e-08 1.05e-07 1.37e-06 2.64e-07 1.28e-06   erg/cm2
Peak flux Cutoff-PL 1.88e+00 1.83e+00 1.03e+00 4.73e-01 5.04e+00 5.22e+00   ph/cm2/s
              Error 2.90e-01 1.87e-01 1.33e-01 3.32e-01 4.37e-01 5.52e-01   ph/cm2/s
 
Fluence        Band 1.09e-06 2.14e-06 2.73e-06 6.97e-06 7.92e-06 1.30e-05   erg/cm2
              Error 1.00e-07 -------- 9.79e-08 -------- 2.49e-07 --------   erg/cm2
Peak flux      Band 1.90e+00 1.81e+00 1.04e+00 5.45e-01 5.06e+00 5.30e+00   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    1.601    0.052    -      -           6.91e-03 1.87e-04   60.390 57
CPL   1.311    0.211     125.2   96.2      9.47e-03 2.15e-03   54.490 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.775    0.144    -      -           3.75e-02 3.50e-03   61.800 57
CPL   1.255    0.609      65.8  -24.4      7.21e-02 6.35e-02   59.310 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: 67.648000 sec.
T50 in the 50-300 keV band: 24.576000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  126.264    0.040  126.304
T90    83.792    1.116   84.908
T50    29.588   16.312   45.900
Peak    1.000    0.064    1.064

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  132.1438  -2.7364 0.0106   32.1   44.0       1.3195    18.1  TRIG_01091101       
------------------------------------------
 
Foreground time interval of the image:
  0.040   7.501 (delta_t =   7.461 [sec])
Background time interval of the image:
-239.200 -47.996 (delta_t = 191.204 [sec])
-47.200   0.040 (delta_t =  47.240 [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
0.040000 28.240000
29.800000 126.304000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.60124     ( -0.0516349   0.0517428 )
Norm@50keV  : 6.90524E-03    ( -0.000187037   0.000186955 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.39 using 59 PHA bins.
# Reduced chi-squared =          1.060 for     57 degrees of freedom 
# Null hypothesis probability =   3.542829e-01
 
Photon flux (15-150 keV)    in 124.7 sec: 0.887694 ( -0.0262181  0.0262974 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.05177e-06 ( -2.29988e-07  2.30413e-07 ) ergs/cm2
 
Cutoff power-law model
Multiple GTIs in the spectrum
tstart tstop
0.040000 28.240000
29.800000 126.304000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.31078     ( -0.216085   0.205824 )
Epeak [keV] : 125.247      ( -32.0633 160.331 )
Norm@50keV  : 9.47378E-03    ( -0.00185651   0.0024455 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.49 using 59 PHA bins.
# Reduced chi-squared =         0.9730 for     56 degrees of freedom 
# Null hypothesis probability =   5.322738e-01
 
Photon flux (15-150 keV)    in 124.7 sec: 0.867980 ( -0.029307  0.029414 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.87383e-06 ( -2.64227e-07  2.62917e-07 ) ergs/cm2
 
Band function
Multiple GTIs in the spectrum
tstart tstop
0.040000 28.240000
29.800000 126.304000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.19899   ( -0.310737   6.03752 )
beta        : -1.77601    ( 1.77586   0.20102 )
Epeak [keV] : 95.5297      ( -65.4599 174.601 )
Norm@50keV   : 1.09961E-02    ( -0.00330192   0.010904 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.38 using 59 PHA bins.
# Reduced chi-squared =         0.9887 for     55 degrees of freedom 
# Null hypothesis probability =   4.982320e-01
 
Photon flux (15-150 keV)    in 124.7 sec: 0.865323 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.91622e-06 ( -7.91534e-06  -2.48714e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.3478  (  )
R^2/D10^2   : 8.70002E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         314.81 using 59 PHA bins.
# Reduced chi-squared =         5.5229 for     57 degrees of freedom 
# Null hypothesis probability =   2.412867e-37
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.329e-07   2.862e-08
25- 50  2.162e-06   7.607e-08
50-150  3.501e-06   1.914e-07
15-150  6.195e-06   1.839e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 189.317       (-26.8578      -188.223)
Norm        : 3.57174       (-0.107815     0.115794)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.116e-06   5.724e-08
25- 50  2.134e-06   1.471e-07
50-150  4.600e-06   1.035e-06
15-150  7.851e-06   1.187e-06
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.03840        (-0.756014      0.832496)
R1^2/D10^2  : 0.886831        (-0.277849      0.445124)
kT2 [keV]   : 25.2739        (-2.36348      3.14664)
R2^2/D10^2  : 1.17650E-02    (-0.00416194   0.0053336)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.047e-06   1.037e-07
25- 50  2.148e-06   1.284e-07
50-150  4.573e-06   3.816e-07
15-150  7.769e-06   4.502e-07

Peak spectrum fit

Power-law model
Time interval is from    0.064 sec. to    1.064 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77458     ( -0.141629   0.146266 )
Norm@50keV  : 3.75484E-02    ( -0.00352283   0.00347416 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.80 using 59 PHA bins.
# Reduced chi-squared =          1.084 for     57 degrees of freedom 
# Null hypothesis probability =   3.088241e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.12399 ( -0.426627  0.42679 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.46032e-07 ( -3.31773e-08  3.34976e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.064 sec. to    1.064 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25488     ( -0.657269   0.560596 )
Epeak [keV] : 65.7886      ( -16.9689 -65.7886 )
Norm@50keV  : 7.21074E-02    ( -0.0355273   0.0913931 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.31 using 59 PHA bins.
# Reduced chi-squared =          1.059 for     56 degrees of freedom 
# Null hypothesis probability =   3.559506e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.03957 ( -0.43697  0.43654 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.32743e-07 ( -3.6406e-08  3.6606e-08 ) ergs/cm2
 
Band function
Time interval is from    0.064 sec. to    1.064 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.25485   ( -0.34833   0.550429 )
beta        : -10.0000    ( 10   1.59872e-14 )
Epeak [keV] : 65.7754      ( -16.4953 -65.7754 )
Norm@50keV   : 7.21018E-02    ( -0.0358315   0.0915225 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.31 using 59 PHA bins.
# Reduced chi-squared =          1.078 for     55 degrees of freedom 
# Null hypothesis probability =   3.214486e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.06430 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.34053e-07 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 11.7686  (-1.10017  1.22875)
R^2/D10^2   : 1.35246  (-0.417033   0.590329)
(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  3.955e-08   5.565e-09
25- 50  1.216e-07   1.265e-08
50-150  9.994e-08   1.906e-08
15-150  2.611e-07   2.895e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.9366       (-22.1926      54.4674)
Norm        : 22.8311       (-2.78345     2.50164)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.967e-08   7.295e-09
25- 50  1.032e-07   1.021e-08
50-150  1.671e-07   6.045e-08
15-150  3.300e-07   6.380e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.17586        (-2.54147      2.0245)
R1^2/D10^2  : 5.70346        (-3.01859      18.7711)
kT2 [keV]   : 24.0695        (-7.84954      16.8633)
R2^2/D10^2  : 6.48030E-02    (-0.0537694   0.263236)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.503e-08   1.921e-08
25- 50  1.065e-07   3.199e-08
50-150  1.722e-07   8.544e-08
15-150  3.337e-07   1.270e-07
Plot creation:
Tue Dec 28 17:08:37 EST 2021