batgrbproduct analysis for trigger=750298

batgrbproduct Analysis for Trigger=750298

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Sat Apr 29 12:50:38 EDT 2017
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger750298/GCN5_download_cron
======================================================================

  Trigger: 00750298      Segment: 000

  BAT Trigger Time: 515063641.216   [s; MET]
      Trigger Stop: 515063641.664   [s; MET]
               UTC: 2017-04-28T09:13:42.238600    [includes UTCF correction] 
       Where From?: (*SHORT BURST*) Expanded to TRIGTIME - 64 ms to TRIGTIME + 320 ms

  BAT 
    RA: 330.062855519899   Dec: 26.9175780247122  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.87
     Image Trigger?:     NO
     Rate S/N Ratio:     96.3587048480831  [ if not an image trigger ]
     Image S/N Ratio:    12.87

  Flight Position:   [ source = BAT ]
    RA: 330.062855519899   Dec: 26.9175780247122  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 330.051686185215   Dec: 26.9133614105514  [deg; J2000]  
        { 22h 00m 12.4s , +26d 54' 48.1" }
         +/- 1.22258224102634 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.462890635421912 [arcmin] (formal 1-sigma fit error)
    SNR: 22.8262938740086
 
  Angular difference between Flight and Ground position is 0.648916 arcmin
 
  Partial Coding Fraction: 0.625    [ including projection effects ]

  Duration
     T90: 0.199999928474426 +/- 0.0737563758292483
        Measured from: 0.164000153541565
                   to: 0.364000082015991     [s; relative to TRIGTIME]
     T50: 0.0999999642372131 +/- 0.0199999928474746
        Measured from: 0.200000166893005
                   to: 0.300000131130219     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.199999988079071     
                   to: 0.800000011920929     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.148000061511993     
                   to: 0.448000013828278     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.041955   0.116879   0.133820   0.075839
           0.006094   0.007804   0.008795   0.007772 [error]
 Peak      0.045536   0.123047   0.133935   0.082185
           0.009121   0.010452   0.010620   0.009497 [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 1.53e-08 4.43e-08 1.04e-07 6.70e-07 2.82e-07 8.34e-07   erg/cm2
              Error 2.25e-09 3.88e-09 7.97e-09 1.20e-07 2.21e-08 1.24e-07   erg/cm2
Peak flux Power-law 5.25e-01 7.98e-01 9.08e-01 1.97e+00 2.82e+00 4.20e+00   ph/cm2/s
              Error 1.03e-01 9.42e-02 8.17e-02 3.99e-01 2.50e-01 4.26e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.43e-08 4.53e-08 1.08e-07 4.46e-07 2.78e-07 6.14e-07   erg/cm2
              Error 2.71e-09 4.33e-09 9.74e-09 2.29e-07 2.36e-08 2.34e-07   erg/cm2
Peak flux Cutoff-PL 4.97e-01 8.05e-01 9.30e-01 1.60e+00 2.80e+00 3.83e+00   ph/cm2/s
              Error 9.48e-02 9.89e-02 1.02e-01 6.62e-01 2.57e-01 5.77e-01   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    0.765    0.123    -      -           7.91e-02 5.66e-03   57.140 57
CPL   0.469    0.475     298.5    0.0      1.07e-01 5.39e-02   56.040 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.813    0.157    -      -           2.45e-02 2.21e-03   50.410 57
CPL   0.614    0.460     409.7    0.0      3.00e-02 1.67e-02   50.070 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: 0.128000 sec.
T50 in the 50-300 keV band: 0.128000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.300    0.148    0.448
T90     0.200    0.164    0.364
T50     0.100    0.200    0.300
Peak    1.000   -0.200    0.800

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  330.0517 +26.9134 0.0084   33.0  165.7       0.3698    22.8  TRIG_00750298       
------------------------------------------
 
Foreground time interval of the image:
  0.148   0.448 (delta_t =   0.300 [sec])
Background time interval of the image:
-239.216 -230.436 (delta_t =   8.780 [sec])
-179.216   0.148 (delta_t = 179.364 [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    0.148 sec. to    0.448 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.764783     ( -0.124445   0.121504 )
Norm@50keV  : 7.91288E-02    ( -0.00566961   0.005647 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.14 using 59 PHA bins.
# Reduced chi-squared =          1.002 for     57 degrees of freedom 
# Null hypothesis probability =   4.700542e-01
 
Photon flux (15-150 keV)    in 0.3 sec: 9.10822 ( -0.640111  0.640404 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.816e-07 ( -2.20159e-08  2.21188e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.148 sec. to    0.448 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.469471     ( -0.53565   0.413984 )
Epeak [keV] : 298.536      ( -298.541 -298.541 )
Norm@50keV  : 0.107290    ( -0.0318865   0.0758253 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.04 using 59 PHA bins.
# Reduced chi-squared =          1.001 for     56 degrees of freedom 
# Null hypothesis probability =   4.731944e-01
 
Photon flux (15-150 keV)    in 0.3 sec: 9.02734 ( -0.65509  0.65393 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.77527e-07 ( -2.37801e-08  2.33793e-08 ) ergs/cm2
 
Band function
Time interval is from    0.148 sec. to    0.448 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.989514   ( 0.989513   0.989513 )
beta        : -0.764782    ( -0.121465   0.12455 )
Epeak [keV] : 13.8743      ( -13.8743 -13.8743 )
Norm@50keV   : 0.113163    ( -0.0415557   1.77359e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.14 using 59 PHA bins.
# Reduced chi-squared =          1.039 for     55 degrees of freedom 
# Null hypothesis probability =   3.957258e-01
 
Photon flux (15-150 keV)    in 0.3 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]    : 23.9547  (-2.39049  2.82625)
R^2/D10^2   : 0.264490  (-0.0739527   0.0974496)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.61 using 59 PHA bins.
# Reduced chi-squared =          1.397 for     57 degrees of freedom 
# Null hypothesis probability =   2.564239e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.087e-09   1.131e-09
25- 50  4.487e-08   4.830e-09
50-150  1.918e-07   2.262e-08
15-150  2.448e-07   2.331e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 33.4782       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         158.50 using 59 PHA bins.
# Reduced chi-squared =         2.7806 for     57 degrees of freedom 
# Null hypothesis probability =   1.687861e-11
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.501e-08   2.880e-09
25- 50  4.811e-08   1.536e-08
50-150  1.055e-07   4.669e-08
15-150  1.786e-07   7.214e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 13.7475        (-3.04688      2.60143)
R1^2/D10^2  : 0.935534        (-0.351628      0.726344)
kT2 [keV]   : 87.1575        (-47.8913      -91.253)
R2^2/D10^2  : 7.16795E-03    (-0.00413195   0.0318078)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.91 using 59 PHA bins.
# Reduced chi-squared =         0.9257 for     55 degrees of freedom 
# Null hypothesis probability =   6.314138e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.235e-08   3.614e-09
25- 50  4.990e-08   1.708e-08
50-150  2.141e-07   1.346e-07
15-150  2.763e-07   1.537e-07

Peak spectrum fit

Power-law model
Time interval is from   -0.200 sec. to    0.800 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.813336     ( -0.160249   0.154346 )
Norm@50keV  : 2.45344E-02    ( -0.00222449   0.00220494 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.41 using 59 PHA bins.
# Reduced chi-squared =         0.8844 for     57 degrees of freedom 
# Null hypothesis probability =   7.189375e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.81855 ( -0.250217  0.250755 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.85112e-07 ( -2.65707e-08  2.66922e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.200 sec. to    0.800 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.614445     ( -0.649956   0.270884 )
Epeak [keV] : 409.747      ( -409.825 -409.825 )
Norm@50keV  : 2.99577E-02    ( -0.00724691   0.0261817 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.07 using 59 PHA bins.
# Reduced chi-squared =         0.8941 for     56 degrees of freedom 
# Null hypothesis probability =   6.976936e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.79799 ( -0.25704  0.25735 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.82621e-07 ( -2.8273e-08  2.7823e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.200 sec. to    0.800 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.881269   ( 0.881269   0.881269 )
beta        : -0.813327    ( -0.154422   0.16022 )
Epeak [keV] : 14.4016      ( -14.4016 -14.4016 )
Norm@50keV   : 3.59326E-02    ( -0.0135922   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.41 using 59 PHA bins.
# Reduced chi-squared =         0.9165 for     55 degrees of freedom 
# Null hypothesis probability =   6.504112e-01
 
Photon flux (15-150 keV)    in 1 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]    : 24.5142  (-3.08887  3.82533)
R^2/D10^2   : 7.48287E-02  (-0.0262176   0.0379381)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          68.68 using 59 PHA bins.
# Reduced chi-squared =          1.205 for     57 degrees of freedom 
# Null hypothesis probability =   1.382034e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.893e-09   1.495e-09
25- 50  4.433e-08   5.495e-09
50-150  1.980e-07   2.860e-08
15-150  2.503e-07   3.180e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-13.251      -200)
Norm        : 11.0834       (-1.03753     1.03753)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         109.65 using 59 PHA bins.
# Reduced chi-squared =         1.9237 for     57 degrees of freedom 
# Null hypothesis probability =   3.480085e-05
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.759e-08   1.500e-08
25- 50  5.307e-08   1.902e-08
50-150  1.164e-07   6.327e-08
15-150  1.971e-07   8.988e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.2298        (-3.0307      2.13521)
R1^2/D10^2  : 0.391470        (-0.195056      0.428855)
kT2 [keV]   : 65.1644        (-30.7319      -68.96)
R2^2/D10^2  : 4.18354E-03    (-0.00318509   0.0132855)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.11 using 59 PHA bins.
# Reduced chi-squared =         0.8384 for     55 degrees of freedom 
# Null hypothesis probability =   7.976356e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.397e-08   6.997e-09
25- 50  5.183e-08   2.496e-08
50-150  2.188e-07   1.114e-07
15-150  2.846e-07   1.350e-07
Plot creation:
Sat Apr 29 13:02:11 EDT 2017