batgrbproduct analysis for trigger=1114937

batgrbproduct Analysis for Trigger=1114937

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Jul  7 15:52:24 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1114937/GCN5_download_cron
======================================================================

  Trigger: 01114937      Segment: 000

  BAT Trigger Time: 678816583.744   [s; MET]
      Trigger Stop: 678816585.792   [s; MET]
               UTC: 2022-07-06T16:09:14.296300    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 0.586794992558329   Dec: -16.3913692713963  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.84
     Image Trigger?:     NO
     Rate S/N Ratio:     11.6189500386223  [ if not an image trigger ]
     Image S/N Ratio:    8.84

  Flight Position:   [ source = BAT ]
    RA: 0.586794992558329   Dec: -16.3913692713963  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 0.577112568072369   Dec: -16.410768801105  [deg; J2000]  
        { 00h 02m 18.5s , -16d 24' 38.8" }
         +/- 1.82650061130474 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.707556623744499 [arcmin] (formal 1-sigma fit error)
    SNR: 12.8639924724808
 
  Angular difference between Flight and Ground position is 1.290512 arcmin
 
  Partial Coding Fraction: 0.734375    [ including projection effects ]

  Duration
     T90: 86.9079998731613 +/- 17.9923081333013
        Measured from: -56.4799997806549
                   to: 30.4280000925064     [s; relative to TRIGTIME]
     T50: 15.7359999418259 +/- 10.194905577293
        Measured from: -3.45599985122681
                   to: 12.2800000905991     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 3.72400009632111     
                   to: 4.72400009632111     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -71.8399999141693     
                   to: 36.1480000019073     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.788917   0.923984   0.538644   0.224963
           0.067787   0.070074   0.062472   0.058550 [error]
 Peak      0.029670   0.050892   0.025709   0.013121
           0.006965   0.007326   0.006414   0.005811 [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 2.36e-07 3.73e-07 4.44e-07 1.03e-06 1.35e-06 2.08e-06   erg/cm2
              Error 3.34e-08 3.28e-08 6.33e-08 3.07e-07 1.44e-07 3.64e-07   erg/cm2
Peak flux Power-law 3.24e-01 3.02e-01 1.95e-01 1.94e-01 9.02e-01 1.02e+00   ph/cm2/s
              Error 9.62e-02 5.74e-02 5.39e-02 1.08e-01 1.69e-01 1.98e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.36e-07 3.73e-07 4.44e-07 1.02e-06 1.35e-06 2.07e-06   erg/cm2
              Error 3.39e-08 3.27e-08 6.23e-08 3.94e-07 1.47e-07 5.00e-07   erg/cm2
Peak flux Cutoff-PL 3.28e-01 3.03e-01 1.93e-01 1.88e-01 9.02e-01 1.02e+00   ph/cm2/s
              Error 9.63e-02 5.70e-02 4.06e-02 1.60e-01 1.69e-01 1.69e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 3.41e-01 3.42e-01 1.93e-01 8.12e-02 9.27e-01 9.57e-01   ph/cm2/s
              Error -------- -------- -------- -------- 1.85e-01 2.12e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.749    0.173    -      -           1.35e-03 1.38e-04   42.190 57
CPL   1.749    0.348    9999.2   -0.0      1.35e-03 1.06e-03   42.200 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.631    0.346    -      -           6.95e-03 1.47e-03   69.000 57
CPL   1.639    0.371    9999.3   -0.0      6.92e-03 1.61e-02   69.010 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: 22.272000 sec.
T50 in the 50-300 keV band: 10.816000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  107.988  -71.840   36.148
T90    86.908  -56.480   30.428
T50    15.736   -3.456   12.280
Peak    1.000    3.724    4.724

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
    0.5771 -16.4108 0.0149   21.2  123.7       2.2371    12.9  TRIG_01114937       
------------------------------------------
 
Foreground time interval of the image:
-66.543  27.757 (delta_t =  94.300 [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  -71.840 sec. to   36.148 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74944     ( -0.170462   0.175625 )
Norm@50keV  : 1.35484E-03    ( -0.000139132   0.000136385 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.19 using 59 PHA bins.
# Reduced chi-squared =         0.7402 for     57 degrees of freedom 
# Null hypothesis probability =   9.285579e-01
 
Photon flux (15-150 keV)    in 108 sec: 0.183159 ( -0.0162139  0.0162282 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.35022e-06 ( -1.43008e-07  1.45555e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -71.840 sec. to   36.148 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.74935     ( -0.521106   0.175686 )
Epeak [keV] : 9999.25      ( -9999.35 -9999.36 )
Norm@50keV  : 1.35420E-03    ( -0.000915771   0.00121071 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.20 using 59 PHA bins.
# Reduced chi-squared =         0.7535 for     56 degrees of freedom 
# Null hypothesis probability =   9.139571e-01
 
Photon flux (15-150 keV)    in 108 sec: 0.183141 ( -0.016285  0.016166 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34991e-06 ( -1.51481e-07  1.42711e-07 ) ergs/cm2
 
Band function
Time interval is from  -71.840 sec. to   36.148 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -6.82168   ( 5.95577   6.82168 )
beta        : -1.74944    ( -0.175625   0.170462 )
Epeak [keV] : 89.6216      ( -89.6216 -89.6216 )
Norm@50keV   : 0.184142    ( -0.01891   0.0185366 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.19 using 59 PHA bins.
# Reduced chi-squared =         0.7672 for     55 degrees of freedom 
# Null hypothesis probability =   8.972881e-01
 
Photon flux (15-150 keV)    in 108 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]    : 11.3740  (-1.25547  1.46504)
R^2/D10^2   : 5.19277E-02  (-0.0186967   0.0283049)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.69 using 59 PHA bins.
# Reduced chi-squared =          1.345 for     57 degrees of freedom 
# Null hypothesis probability =   4.204349e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.525e-07   2.603e-08
25- 50  4.498e-07   4.919e-08
50-150  3.370e-07   7.538e-08
15-150  9.393e-07   1.045e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 116.604       (-37.6604      79.4596)
Norm        : 0.776756       (-0.0878091     0.108244)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.187e-07   2.776e-08
25- 50  3.894e-07   5.065e-08
50-150  6.850e-07   2.993e-07
15-150  1.293e-06   3.224e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.46623        (-1.93186      1.75433)
R1^2/D10^2  : 0.192605        (-0.0969284      0.335334)
kT2 [keV]   : 34.8375        (-14.1936      84.1172)
R2^2/D10^2  : 7.38756E-04    (-0.000664797   0.00363554)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.120e-07   6.322e-08
25- 50  3.964e-07   1.061e-07
50-150  7.790e-07   3.831e-07
15-150  1.387e-06   5.060e-07

Peak spectrum fit

Power-law model
Time interval is from    3.724 sec. to    4.724 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63091     ( -0.340799   0.35183 )
Norm@50keV  : 6.95223E-03    ( -0.00149044   0.00144163 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.00 using 59 PHA bins.
# Reduced chi-squared =          1.211 for     57 degrees of freedom 
# Null hypothesis probability =   1.324065e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.902159 ( -0.169363  0.169411 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.47866e-08 ( -1.45678e-08  1.5068e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    3.724 sec. to    4.724 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.63935     ( -0.395118   0.346437 )
Epeak [keV] : 9999.34      ( -9999.35 -9999.36 )
Norm@50keV  : 6.92046E-03    ( -0.00148775   0.0307394 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          69.01 using 59 PHA bins.
# Reduced chi-squared =          1.232 for     56 degrees of freedom 
# Null hypothesis probability =   1.137204e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.902405 ( -0.169862  0.168965 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.48083e-08 ( -1.63612e-08  1.47528e-08 ) ergs/cm2
 
Band function
Time interval is from    3.724 sec. to    4.724 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.74318   ( -4.74318   -4.74318 )
beta        : -2.10376    ( -0.83356   0.549391 )
Epeak [keV] : 29.9807      ( -6.58893 6.08737 )
Norm@50keV   : 201.788    ( -37.2889   4.65356e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.95 using 59 PHA bins.
# Reduced chi-squared =          1.217 for     55 degrees of freedom 
# Null hypothesis probability =   1.295241e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.927403 ( 6.0726  -0.202088 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.8085e-08 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.64097  (-1.80555  2.53572)
R^2/D10^2   : 0.489977  (-0.286903   0.580764)
(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  9.151e-09   3.142e-09
25- 50  2.159e-08   6.765e-09
50-150  1.012e-08   5.444e-09
15-150  4.086e-08   1.308e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 160.199       (-96.5318      -158.731)
Norm        : 3.69743       (-0.72966     1.14146)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.440e-09   5.430e-09
25- 50  1.766e-08   9.835e-09
50-150  3.580e-08   2.181e-08
15-150  6.290e-08   3.724e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.06037        (-1.45664      1.67979)
R1^2/D10^2  : 0.857511        (-0.462303      0.979242)
kT2 [keV]   : 198.684        (-198.869      -198.87)
R2^2/D10^2  : 1.33747E-04    (-5.85807e-05   0.00313287)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.030e-08   5.493e-09
25- 50  1.941e-08   9.348e-09
50-150  4.009e-08   9.020e-09
15-150  6.980e-08   2.452e-08
Plot creation:
Thu Jul  7 15:56:11 EDT 2022