batgrbproduct analysis for trigger=1046014

batgrbproduct Analysis for Trigger=1046014

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Apr 30 19:10:33 EDT 2021
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1046014/GCN5_download_cron
======================================================================

  Trigger: 01046014      Segment: 000

  BAT Trigger Time: 641472156.8   [s; MET]
      Trigger Stop: 641472160.896   [s; MET]
               UTC: 2021-04-30T10:42:09.864820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 57.1977339845647   Dec: 45.074287242736  [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:     10.0498756211209  [ if not an image trigger ]
     Image S/N Ratio:    8.71

  Flight Position:   [ source = BAT ]
    RA: 57.1977339845647   Dec: 45.074287242736  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 57.1846161488093   Dec: 45.0796812789608  [deg; J2000]  
        { 03h 48m 44.3s , +45d 04' 46.9" }
         +/- 1.69861424705955 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.870396667175117 [arcmin] (formal 1-sigma fit error)
    SNR: 14.2695926815179
 
  Angular difference between Flight and Ground position is 0.643158 arcmin
 
  Partial Coding Fraction: 0.25    [ including projection effects ]

  Duration
     T90: 11.5319999456406 +/- 2.8299661506428
        Measured from: -1.69199979305267
                   to: 9.84000015258789     [s; relative to TRIGTIME]
     T50: 6.63199996948242 +/- 1.40062272576995
        Measured from: 1.39600014686584
                   to: 8.02800011634827     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.14000010490417     
                   to: 2.14000010490417     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.71999990940094     
                   to: 14.5960000753403     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.611189   0.725883   0.298704   0.072216
           0.064470   0.066124   0.056327   0.048899 [error]
 Peak      0.080153   0.073155   0.059090   0.015099
           0.016086   0.016971   0.015236   0.011841 [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 2.48e-07 3.09e-07 2.79e-07 4.38e-07 9.87e-07 1.27e-06   erg/cm2
              Error 3.79e-08 3.42e-08 5.43e-08 1.66e-07 1.26e-07 2.30e-07   erg/cm2
Peak flux Power-law 8.16e-01 6.51e-01 3.50e-01 2.74e-01 1.94e+00 2.09e+00   ph/cm2/s
              Error 2.75e-01 1.49e-01 1.19e-01 1.79e-01 4.47e-01 4.77e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.30e-07 3.42e-07 2.65e-07 1.11e-07 9.15e-07 9.49e-07   erg/cm2
              Error 4.33e-08 4.98e-08 6.75e-08 2.29e-07 1.43e-07 2.25e-07   erg/cm2
Peak flux Cutoff-PL 7.79e-01 6.78e-01 3.60e-01 1.88e-01 1.92e+00 2.00e+00   ph/cm2/s
              Error 3.10e-01 1.80e-01 1.28e-01 -------- 4.52e-01 5.20e-01   ph/cm2/s
 
Fluence        Band 2.28e-07 3.99e-07 3.15e-07 2.79e-07 1.07e-06 1.22e-06   erg/cm2
              Error -------- 5.59e-08 7.22e-08 2.97e-07 1.53e-07 --------   erg/cm2
Peak flux      Band 7.63e-01 6.79e-01 3.66e-01 1.89e-01 1.92e+00 2.00e+00   ph/cm2/s
              Error 3.10e-01 -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.146    0.209    -      -           6.10e-03 8.68e-04   69.040 57
CPL   1.244    1.005      34.4   21.2      2.04e-02 5.70e-02   66.390 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.895    0.407    -      -           1.35e-02 3.58e-03   45.950 57
CPL   1.558    1.201      62.8   -0.1      2.05e-02 8.70e-02   45.760 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: 8.576000 sec.
T50 in the 50-300 keV band: 5.568000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   17.316   -2.720   14.596
T90    11.532   -1.692    9.840
T50     6.632    1.396    8.028
Peak    1.000    1.140    2.140

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   57.1846 +45.0797 0.0135   43.3  -43.9       1.7556    14.3  TRIG_01046014       
------------------------------------------
 
Foreground time interval of the image:
 -2.720  14.596 (delta_t =  17.316 [sec])
Background time interval of the image:
-239.800  -2.720 (delta_t = 237.080 [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   -2.720 sec. to   14.596 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.14589     ( -0.202034   0.216256 )
Norm@50keV  : 6.10303E-03    ( -0.000878935   0.000857185 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.04     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.32e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 17.32 sec: 0.982498 ( -0.108164  0.10824 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.86937e-07 ( -1.25061e-07  1.27309e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -2.720 sec. to   14.596 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.24431     ( -1.25892   0.750835 )
Epeak [keV] : 34.4273      ( -29.8182 12.6439 )
Norm@50keV  : 2.04017E-02    ( -0.0204207   0.0936246 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   66.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.61e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 17.32 sec: 0.951045 ( -0.113395  0.113035 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.14751e-07 ( -1.38369e-07  1.46839e-07 ) ergs/cm2
 
Band function
Time interval is from   -2.720 sec. to   14.596 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.799753   ( -5.03522   1.16193 )
beta        : -2.77889    ( 9.37167   19.3717 )
Epeak [keV] : 34.0243      ( -8.83284 13.1465 )
Norm@50keV   : 3.94014E-02    ( -0.0290699   15.6746 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 17.32 sec: 0.953697 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.068e-06 ( -1.06788e-06  -1.52598e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.42586  (-1.07849  1.20738)
R^2/D10^2   : 0.570879  (-0.216131   0.350452)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   76.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.42e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.748e-07   3.211e-08
25- 50  3.989e-07   5.421e-08
50-150  1.750e-07   5.246e-08
15-150  7.487e-07   1.203e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.1189       (-13.5321      21.2482)
Norm        : 5.40028       (-0.939346     1.21493)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   66.39     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.85e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.317e-07   3.178e-08
25- 50  3.399e-07   4.425e-08
50-150  3.489e-07   1.005e-07
15-150  9.205e-07   1.346e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.99318        (-6.53985      2.11197)
R1^2/D10^2  : 1.42250        (-0.804001      1.09564)
kT2 [keV]   : 21.0529        (-13.2924      102.294)
R2^2/D10^2  : 1.24587E-02    (-0.0112547   0.517224)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   67.75     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.16e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.114e-07   9.650e-08
25- 50  3.572e-07   1.560e-07
50-150  3.507e-07   1.998e-07
15-150  9.193e-07   4.068e-07

Peak spectrum fit

Power-law model
Time interval is from    1.140 sec. to    2.140 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.89481     ( -0.383344   0.430914 )
Norm@50keV  : 1.35500E-02    ( -0.00366698   0.00349488 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.95     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.52e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.94029 ( -0.446852  0.44733 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24569e-07 ( -3.2206e-08  3.27879e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.140 sec. to    2.140 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55761     ( -1.74238   0.659942 )
Epeak [keV] : 62.8187      ( -62.6587 -62.8182 )
Norm@50keV  : 2.05126E-02    ( -0.0205127   0.153405 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.76     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.34e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.92396 ( -0.45252  0.45168 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22766e-07 ( -3.32435e-08  3.3564e-08 ) ergs/cm2
 
Band function
Time interval is from    1.140 sec. to    2.140 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.55903   ( -0.991884   1.67917 )
beta        : -10.0000    ( 10   1.06581e-14 )
Epeak [keV] : 62.9561      ( -52.7878 -62.9561 )
Norm@50keV   : 2.04653E-02    ( -0.0101601   0.154314 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 1.91855 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.22884e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.0686  (-3.25989  4.2822)
R^2/D10^2   : 0.452453  (-0.303563   0.990607)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   51.83     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.69e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.395e-08   6.706e-09
25- 50  4.418e-08   1.991e-08
50-150  3.884e-08   2.145e-08
15-150  9.696e-08   3.931e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 90.5392       (-45.8015      -90.5392)
Norm        : 8.81373       (-2.40582     3.66703)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.86     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.55e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.300e-08   9.118e-09
25- 50  3.895e-08   1.628e-08
50-150  5.953e-08   4.524e-08
15-150  1.215e-07   5.906e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.39283        (-2.18464      4.34328)
R1^2/D10^2  : 14.6022        (-13.4804      531.17)
kT2 [keV]   : 18.4325        (-6.26698      18.0095)
R2^2/D10^2  : 7.67720E-02    (-0.0713777   0.210038)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   45.27     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.22e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.572e-08   1.421e-08
25- 50  3.400e-08   1.801e-08
50-150  6.070e-08   3.943e-08
15-150  1.204e-07   6.290e-08
Plot creation:
Fri Apr 30 19:14:31 EDT 2021