batgrbproduct analysis for trigger=1010946

batgrbproduct Analysis for Trigger=1010946

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Dec  3 21:51:08 EST 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger1010946/batgroup_hand_proc
======================================================================

  Trigger: 01010946      Segment: 000

  BAT Trigger Time: 628671173.248   [s; MET]
      Trigger Stop: 628671185.408   [s; MET]
               UTC: 2020-12-03T06:52:27.160660    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 38.0799197655575   Dec: -26.5375146309371  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.4
     Image Trigger?:     NO
     Rate S/N Ratio:     14  [ if not an image trigger ]
     Image S/N Ratio:    8.4

  Flight Position:   [ source = BAT ]
    RA: 38.0799197655575   Dec: -26.5375146309371  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 38.0547758527732   Dec: -26.5053405517262  [deg; J2000]  
        { 02h 32m 13.1s , -26d 30' 19.2" }
         +/- 1.92927508619372 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.1346427448692 [arcmin] (formal 1-sigma fit error)
    SNR: 11.8963146579422
 
  Angular difference between Flight and Ground position is 2.355586 arcmin
 
  Partial Coding Fraction: 0.9140625    [ including projection effects ]

  Duration
     T90: 12.1840000152588 +/- 2.09745091306972
        Measured from: -0.856000065803528
                   to: 11.3279999494553     [s; relative to TRIGTIME]
     T50: 8.09599995613098 +/- 2.11640938663064
        Measured from: 1.62000000476837
                   to: 9.71599996089935     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 11.4879999160767     
                   to: 12.4879999160767     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.73199999332428     
                   to: 12.8400000333786     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.146797   0.235692   0.111147   0.040718
           0.025001   0.026124   0.022502   0.019237 [error]
 Peak      0.025249   0.023028   0.013552  -0.000109
           0.006430   0.006584   0.005714   0.004643 [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 5.16e-08 8.00e-08 9.31e-08 2.09e-07 2.86e-07 4.33e-07   erg/cm2
              Error 1.06e-08 1.13e-08 2.15e-08 9.72e-08 5.01e-08 1.19e-07   erg/cm2
Peak flux Power-law 2.22e-01 1.66e-01 8.29e-02 5.90e-02 4.99e-01 5.30e-01   ph/cm2/s
              Error 8.73e-02 5.04e-02 4.43e-02 7.02e-02 1.47e-01 1.63e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.90e-08 8.63e-08 9.15e-08 7.47e-08 2.68e-07 3.01e-07   erg/cm2
              Error 1.19e-08 1.63e-08 2.49e-08 1.48e-07 5.84e-08 1.61e-07   erg/cm2
Peak flux Cutoff-PL 2.22e-01 1.68e-01 8.19e-02 4.51e-02 4.97e-01 5.16e-01   ph/cm2/s
              Error 8.85e-02 8.34e-02 6.45e-02 5.08e-02 1.49e-01 1.83e-01   ph/cm2/s
 
Fluence        Band 4.76e-08 8.84e-08 8.77e-08 1.41e-07 2.72e-07 3.65e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 2.16e-01 1.96e-01 6.43e-02 2.69e-02 4.91e-01 5.03e-01   ph/cm2/s
              Error -------- -------- -------- -------- 1.49e-01 1.63e-01   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.781    0.259    -      -           1.99e-03 3.37e-04   69.650 57
CPL   1.171    1.243      58.1  -18.2      4.44e-03 1.53e-02   68.780 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.004    0.596    -      -           3.32e-03 1.36e-03   59.140 57
CPL   1.927    1.061      35.0   -0.3      3.71e-03 0.00e+00   59.140 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   15.572   -2.732   12.840
T90    12.184   -0.856   11.328
T50     8.096    1.620    9.716
Peak    1.000   11.488   12.488

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   38.0548 -26.5053 0.0161   16.7 -129.5       0.5770    11.9  TRIG_01010946       
------------------------------------------
 
Foreground time interval of the image:
 -2.732  12.840 (delta_t =  15.572 [sec])
Background time interval of the image:
-239.248  -2.732 (delta_t = 236.516 [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   -2.732 sec. to   12.840 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.78051     ( -0.251486   0.266671 )
Norm@50keV  : 1.99429E-03    ( -0.000342221   0.000332643 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.65     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.21e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 15.57 sec: 0.272761 ( -0.0385417  0.0385438 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.8608e-07 ( -4.93585e-08  5.08166e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -2.732 sec. to   12.840 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17134     ( -1.44727   1.03909 )
Epeak [keV] : 58.0501      ( -21.6588 -58.0536 )
Norm@50keV  : 4.44317E-03    ( -0.00444241   0.0261275 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   68.78     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.17e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 15.57 sec: 0.266608 ( -0.040126  0.040101 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.67633e-07 ( -5.64257e-08  6.03011e-08 ) ergs/cm2
 
Band function
Time interval is from   -2.732 sec. to   12.840 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.585718   ( 0.880966   5.56987 )
beta        : -2.11444    ( 2.14471   0.557447 )
Epeak [keV] : 42.8614      ( -43.2071 141.504 )
Norm@50keV   : 1.09326E-02    ( -0.0112979   2574.99 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 15.57 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.72347e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.8872  (-1.66911  2.03765)
R^2/D10^2   : 9.54475E-02  (-0.0450295   0.0812429)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   76.00     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.71e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.673e-08   8.805e-09
25- 50  1.025e-07   2.000e-08
50-150  6.807e-08   2.543e-08
15-150  2.073e-07   4.567e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 97.2692       (-38.9212      -97.2692)
Norm        : 1.21864       (-0.217659     0.285689)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   68.80     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.36e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.959e-08   1.017e-08
25- 50  8.526e-08   1.641e-08
50-150  1.360e-07   7.378e-08
15-150  2.708e-07   9.921e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.61213        (-6.19507      3.15819)
R1^2/D10^2  : 0.264113        (-0.169492      549.565)
kT2 [keV]   : 25.5515        (-14.623      -25.7885)
R2^2/D10^2  : 2.48375E-03    (-0.00238592   0.0792277)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.21     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.41e-02 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.576e-08   2.632e-08
25- 50  9.124e-08   4.856e-08
50-150  1.347e-07   7.917e-08
15-150  2.717e-07   1.422e-07

Peak spectrum fit

Power-law model
Time interval is from   11.488 sec. to   12.488 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.00439     ( -0.546461   0.644865 )
Norm@50keV  : 3.31904E-03    ( -0.00139377   0.00132339 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.14     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.97e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.498864 ( -0.147389  0.147461 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.06149e-08 ( -1.13216e-08  1.23621e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   11.488 sec. to   12.488 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.92734     ( -1.92787   0.193653 )
Epeak [keV] : 34.9723      ( -34.4795 -34.9981 )
Norm@50keV  : 3.71368E-03    ( -0.00370917   -0.00370917 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.14     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.62e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 0.497346 ( -0.148923  0.148146 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.02019e-08 ( -1.6428e-08  1.26198e-08 ) ergs/cm2
 
Band function
Time interval is from   11.488 sec. to   12.488 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.98953   ( 1.98953   1.05374 )
beta        : -2.08476    ( 7.63736   17.6357 )
Epeak [keV] : 984.850      ( 1.69273 -32.9715 )
Norm@50keV   : 3.34491E-03    ( -0.00102242   0.202853 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 sec: 0.491076 ( 6.50892  -0.148231 ) 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]    : 7.55928  (-2.00602  2.96086)
R^2/D10^2   : 0.697145  (-0.697118   1.68553)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.98     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.68e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.884e-09   4.134e-09
25- 50  1.089e-08   6.950e-09
50-150  2.365e-09   1.944e-09
15-150  2.014e-08   1.260e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 56.2543       (-33.5402      -56.2543)
Norm        : 2.69603       (-1.07382     2.29286)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.27     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.93e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.700e-09   4.014e-09
25- 50  9.992e-09   6.055e-09
50-150  1.076e-08   8.550e-09
15-150  2.746e-08   1.840e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.51911        (-1.36068      2.66283)
R1^2/D10^2  : 1.12012        (-0.559989      3.77798)
kT2 [keV]   : 44.4006        (-33.8784      -44.403)
R2^2/D10^2  : 8.55178E-04    (-0.00084927   0.102903)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.89     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.05e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.261e-09   4.258e-09
25- 50  9.804e-09   5.790e-09
50-150  1.635e-08   9.180e-09
15-150  3.341e-08   1.618e-08
Plot creation:
Thu Dec  3 21:53:53 EST 2020