batgrbproduct analysis for trigger=1004239

batgrbproduct Analysis for Trigger=1004239

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Nov  6 12:55:35 EST 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger1004239/GCN5_download_cron
======================================================================

  Trigger: 01004239      Segment: 000

  BAT Trigger Time: 626247096.32   [s; MET]
      Trigger Stop: 626247097.344   [s; MET]
               UTC: 2020-11-05T05:31:10.392500    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 245.626275813377   Dec: 12.7301449302437  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    24.04
     Image Trigger?:     NO
     Rate S/N Ratio:     222.506179689464  [ if not an image trigger ]
     Image S/N Ratio:    24.04

  Flight Position:   [ source = BAT ]
    RA: 245.626275813377   Dec: 12.7301449302437  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 245.610000254488   Dec: 12.7342813274895  [deg; J2000]  
        { 16h 22m 26.4s , +12d 44' 03.4" }
         +/- 0.617046361502483 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.146831597641778 [arcmin] (formal 1-sigma fit error)
    SNR: 60.626763715397
 
  Angular difference between Flight and Ground position is 0.984323 arcmin
 
  Partial Coding Fraction: 0.609375    [ including projection effects ]

  Duration
     T90: 33.8159999847412 +/- 4.03117649902239
        Measured from: -0.819999933242798
                   to: 32.9960000514984     [s; relative to TRIGTIME]
     T50: 8.67999994754791 +/- 0.348390522239109
        Measured from: 1.29600012302399
                   to: 9.9760000705719     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.763999938964844     
                   to: 1.76399993896484     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.85199999809265     
                   to: 72.107999920845     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.203225   5.719836   5.911234   1.897255
           0.073155   0.081594   0.079331   0.068530 [error]
 Peak      0.313496   0.569134   0.704748   0.237736
           0.013280   0.017120   0.019173   0.014977 [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 9.89e-07 2.35e-06 4.43e-06 2.03e-05 1.20e-05 2.81e-05   erg/cm2
              Error 4.16e-08 5.74e-08 8.68e-08 9.68e-07 2.27e-07 9.92e-07   erg/cm2
Peak flux Power-law 2.82e+00 4.05e+00 4.34e+00 8.63e+00 1.39e+01 1.98e+01   ph/cm2/s
              Error 1.93e-01 1.66e-01 1.51e-01 6.71e-01 4.51e-01 7.47e-01   ph/cm2/s
 
Fluence   Cutoff-PL 9.36e-07 2.36e-06 4.52e-06 1.64e-05 1.19e-05 2.42e-05   erg/cm2
              Error 5.71e-08 5.90e-08 1.10e-07 2.65e-06 2.39e-07 2.63e-06   erg/cm2
Peak flux Cutoff-PL 2.59e+00 4.09e+00 4.49e+00 6.60e+00 1.37e+01 1.78e+01   ph/cm2/s
              Error 2.59e-01 1.73e-01 1.97e-01 1.48e+00 4.69e-01 1.55e+00   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    1.083    0.035    -      -           1.53e-02 2.89e-04   41.600  0
CPL   0.903    0.142     373.9  385.0      1.81e-02 2.40e-03   36.710  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.902    0.058    -      -           1.21e-01 3.92e-03   47.130  0
CPL   0.622    0.239     296.1  548.4      1.59e-01 3.63e-02   42.910  0
 
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: 28.992000 sec.
T50 in the 50-300 keV band: 7.296000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   74.960   -2.852   72.108
T90    33.816   -0.820   32.996
T50     8.680    1.296    9.976
Peak    1.000    0.764    1.764

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  245.6100 +12.7343 0.0031   23.2 -102.0      16.6276    60.6  TRIG_01004239       
------------------------------------------
 
Foreground time interval of the image:
 -2.852  72.108 (delta_t =  74.960 [sec])
Background time interval of the image:
-239.320  -2.852 (delta_t = 236.468 [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   -2.852 sec. to   72.108 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.08328     ( -0.0347614   0.0346099 )
Norm@50keV  : 1.52509E-02    ( -0.000289115   0.000288631 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   41.60     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.37e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 74.96 sec: 1.76625 ( -0.0354543  0.0355244 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.20171e-05 ( -2.26957e-07  2.27123e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -2.852 sec. to   72.108 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.902689     ( -0.144035   0.139063 )
Epeak [keV] : 373.920      ( -136.968 633.048 )
Norm@50keV  : 1.80753E-02    ( -0.00225517   0.00254678 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   36.71     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.78e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 74.96 sec: 1.74514 ( -0.03858  0.03872 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.19329e-05 ( -2.39272e-07  2.38373e-07 ) ergs/cm2
 
Band function
Time interval is from   -2.852 sec. to   72.108 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.208791   ( -1.68131   3.10897 )
beta        : -1.12836    ( 1.1151   0.0430523 )
Epeak [keV] : 74.8032      ( -40.5699 180.328 )
Norm@50keV   : 4.97778E-02    ( -0.0288217   55.1499 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 74.96 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]    : 22.8045  (  )
R^2/D10^2   : 5.42739E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  471.86     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.21e-66 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.850e-07   1.585e-08
25- 50  2.079e-06   6.297e-08
50-150  8.077e-06   2.249e-07
15-150  1.054e-05   2.211e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 7.65542       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  608.02     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.41e-93 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.429e-06   2.998e-08
25- 50  2.749e-06   5.510e-08
50-150  6.029e-06   1.151e-07
15-150  1.021e-05   2.024e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.94966        (-0.790185      0.861245)
R1^2/D10^2  : 0.587826        (-0.141044      0.19783)
kT2 [keV]   : 35.9543        (-2.70766      3.52899)
R2^2/D10^2  : 1.10348E-02    (-0.00284141   0.00321738)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   39.91     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.37e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.339e-07   6.117e-08
25- 50  2.424e-06   1.004e-07
50-150  8.704e-06   3.823e-07
15-150  1.196e-05   4.460e-07

Peak spectrum fit

Power-law model
Time interval is from    0.764 sec. to    1.764 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.901935     ( -0.0579219   0.0576737 )
Norm@50keV  : 0.120951    ( -0.00391938   0.00391215 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   47.13     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.21e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 13.8827 ( -0.450585  0.450807 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.35638e-06 ( -4.84887e-08  4.85906e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.764 sec. to    1.764 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.621898     ( -0.246028   0.231469 )
Epeak [keV] : 296.105      ( -109.754 987.014 )
Norm@50keV  : 0.159006    ( -0.0309276   0.0417026 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   42.91     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.00e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 13.7218 ( -0.4687  0.4689 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.34286e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    0.764 sec. to    1.764 sec.
 Parameter 2 is pegged at -8.80351 due to zero or negative pivot element, likely
 caused by the fit being insensitive to the parameter.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.819068   ( 0.819068   0.819068 )
beta        : -0.901940    ( -0.0576669   0.0579342 )
Epeak [keV] : 20.6601      (   )
Norm@50keV   : 0.176209    (     )
------------------------------------------------------------
 
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]    : 23.9054  (  )
R^2/D10^2   : 0.397518  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  161.17     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.97e-12 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.039e-08   2.555e-09
25- 50  2.238e-07   1.050e-08
50-150  9.533e-07   4.930e-08
15-150  1.217e-06   5.250e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 54.6191       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  370.61     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.59e-47 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.360e-07   5.000e-09
25- 50  2.616e-07   9.150e-09
50-150  5.738e-07   1.970e-08
15-150  9.714e-07   3.505e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.35036        (-1.2878      1.59185)
R1^2/D10^2  : 6.69170        (-3.04224      6.33892)
kT2 [keV]   : 32.6104        (-2.95944      4.21439)
R2^2/D10^2  : 0.139528    (-0.044843   0.0496883)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   43.33     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.72e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.295e-08   1.572e-08
25- 50  2.319e-07   2.140e-08
50-150  1.034e-06   7.510e-08
15-150  1.349e-06   1.045e-07
Plot creation:
Fri Nov  6 13:07:11 EST 2020