batgrbproduct analysis for trigger=1136936

batgrbproduct Analysis for Trigger=1136936

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Nov 10 12:03:16 EST 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1136936/batgroup_hand_proc
======================================================================

  Trigger: 01136936      Segment: 000

  BAT Trigger Time: 689740127.744   [s; MET]
      Trigger Stop: 689740128.768   [s; MET]
               UTC: 2022-11-10T02:28:17.554360    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 29.119436251407   Dec: -27.3142945105164  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.01
     Image Trigger?:     NO
     Rate S/N Ratio:     13.3790881602597  [ if not an image trigger ]
     Image S/N Ratio:    8.01

  Flight Position:   [ source = BAT ]
    RA: 29.119436251407   Dec: -27.3142945105164  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 29.1061881017316   Dec: -27.2976008251396  [deg; J2000]  
        { 01h 56m 25.5s , -27d 17' 51.4" }
         +/- 1.49009744901039 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.580864329355719 [arcmin] (formal 1-sigma fit error)
    SNR: 17.2055614751203
 
  Angular difference between Flight and Ground position is 1.225612 arcmin
 
  Partial Coding Fraction: 0.7578125    [ including projection effects ]

  Duration
     T90: 8.9799998998642 +/- 2.10693811743884
        Measured from: 0.0680000782012939
                   to: 9.04799997806549     [s; relative to TRIGTIME]
     T50: 3.83999991416931 +/- 0.761146524130931
        Measured from: 1.26400005817413
                   to: 5.10399997234344     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.516000032424927     
                   to: 1.51600003242493     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.407999992370605     
                   to: 9.73600006103516     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.218267   0.301965   0.235325   0.038164
           0.024014   0.025624   0.022905   0.018603 [error]
 Peak      0.036523   0.061698   0.043253  -0.000346
           0.007870   0.008430   0.007750   0.005933 [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 6.23e-08 1.21e-07 1.81e-07 5.87e-07 5.09e-07 9.50e-07   erg/cm2
              Error 9.87e-09 1.16e-08 2.21e-08 1.56e-07 5.39e-08 1.72e-07   erg/cm2
Peak flux Power-law 3.90e-01 3.76e-01 2.53e-01 2.66e-01 1.13e+00 1.29e+00   ph/cm2/s
              Error 9.71e-02 6.42e-02 5.91e-02 1.19e-01 1.90e-01 2.28e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.09e-08 1.23e-07 1.83e-07 4.68e-07 5.04e-07 8.33e-07   erg/cm2
              Error 1.13e-08 1.39e-08 2.37e-08 2.11e-07 5.91e-08 2.29e-07   erg/cm2
Peak flux Cutoff-PL 3.12e-01 4.59e-01 2.63e-01 4.50e-02 1.07e+00 1.08e+00   ph/cm2/s
              Error 1.20e-01 9.38e-02 7.63e-02 8.74e-02 1.96e-01 2.06e-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    1.415    0.163    -      -           5.21e-03 4.89e-04    0.000  0
CPL   1.276    0.556     261.5    0.0      6.13e-03 5.54e-03    0.000  0
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.571    0.273    -      -           8.84e-03 1.64e-03    0.000  0
CPL  -0.264    1.782      54.9   28.6      9.08e-02 5.92e-01    0.000  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: 6.656000 sec.
T50 in the 50-300 keV band: 3.200000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   10.144   -0.408    9.736
T90     8.980    0.068    9.048
T50     3.840    1.264    5.104
Peak    1.000    0.516    1.516

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   29.1062 -27.2976 0.0112   17.7  -68.6       0.8266    17.2  TRIG_01136936       
------------------------------------------
 
Foreground time interval of the image:
 -0.408   9.736 (delta_t =  10.144 [sec])
Background time interval of the image:
-239.744  -0.408 (delta_t = 239.336 [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   -0.408 sec. to    9.736 sec.
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41482     ( -0.161959   0.163226 )
Norm@50keV  : 5.21053E-03    ( -0.00049048   0.000487984 )
------------------------------------------------------------
 Reduced chi-squared = 
 
Photon flux (15-150 keV)    in 10.14 sec: 0.636713 ( -0.0589923  0.059058 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.09005e-07 ( -5.36674e-08  5.42047e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.408 sec. to    9.736 sec.
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.27576     ( -0.700247   0.411849 )
Epeak [keV] : 261.512      ( -261.512 -261.512 )
Norm@50keV  : 6.13055E-03    ( -0.00359539   0.0074862 )
------------------------------------------------------------
 Reduced chi-squared = 
 
Photon flux (15-150 keV)    in 10.14 sec: 0.632962 ( -0.061397  0.061123 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.03633e-07 ( -6.00014e-08  5.82878e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.408 sec. to    9.736 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.06135   ( 1.07152   1.07152 )
beta        : -1.55693    ( 1.55565   0.292174 )
Epeak [keV] : 117.817      ( -122.727 9241.55 )
Norm@50keV   : 8.10726E-03    ( -0.00289587   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.65 using 59 PHA bins.
# Reduced chi-squared =         0.8300 for     55 degrees of freedom 
# Null hypothesis probability =   8.114906e-01
 
Photon flux (15-150 keV)    in 10.14 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.4152  (-1.7634  2.04255)
R^2/D10^2   : 6.66283E-02  (-0.0232381   0.0347345)
(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  3.345e-08   5.942e-09
25- 50  1.362e-07   1.785e-08
50-150  2.229e-07   4.472e-08
15-150  3.927e-07   5.045e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-44.5296      -200)
Norm        : 2.60131       (-0.239331     0.239331)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.599e-08   8.279e-09
25- 50  1.269e-07   1.977e-08
50-150  2.784e-07   1.510e-07
15-150  4.713e-07   1.884e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.77967        (-3.80294      4.00596)
R1^2/D10^2  : 0.440230        (-0.269378      0.802848)
kT2 [keV]   : 29.3711        (-11.0912      -29.8822)
R2^2/D10^2  : 5.68957E-03    (-0.00520854   0.0248998)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.570e-08   2.914e-08
25- 50  1.279e-07   4.820e-08
50-150  3.153e-07   1.644e-07
15-150  4.989e-07   2.418e-07

Peak spectrum fit

Power-law model
Time interval is from    0.516 sec. to    1.516 sec.
 XSPEC: quit
 
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.57113     ( -0.267238   0.279104 )
Norm@50keV  : 8.84310E-03    ( -0.00165176   0.00162249 )
------------------------------------------------------------
 Reduced chi-squared = 
 
Photon flux (15-150 keV)    in 1 sec: 1.12646 ( -0.190468  0.190483 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.30027e-08 ( -1.65319e-08  1.69609e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.516 sec. to    1.516 sec.
 
 
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.263786     ( -2.09358   1.47133 )
Epeak [keV] : 54.8666      ( -11.2591 46.0018 )
Norm@50keV  : 9.07754E-02    ( -0.0907901   1.09415 )
------------------------------------------------------------
 Reduced chi-squared = 
 
Photon flux (15-150 keV)    in 1 sec: 1.07273 ( -0.195404  0.19579 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.19468e-08 ( -1.59778e-08  1.837e-08 ) ergs/cm2
 
Band function
Time interval is from    0.516 sec. to    1.516 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.325269   ( -1.6291   -0.412087 )
beta        : -2.55793    ( 2.93412   1.19339 )
Epeak [keV] : 60.4306      ( -22.6067 25.9787 )
Norm@50keV   : 4.29772E-02    ( -0.0899077   104.253 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.76 using 59 PHA bins.
# Reduced chi-squared =         0.9956 for     55 degrees of freedom 
# Null hypothesis probability =   4.839031e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.42734e-08 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 13.0222  (-2.05478  2.44119)
R^2/D10^2   : 0.225403  (-0.103857   0.187328)
(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  8.107e-09   2.488e-09
25- 50  2.797e-08   6.510e-09
50-150  3.002e-08   1.108e-08
15-150  6.610e-08   1.669e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 162.026       (-82.6948      -160.008)
Norm        : 4.69877       (-0.811956     1.02214)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.198e-08   6.810e-09
25- 50  2.246e-08   1.238e-08
50-150  4.572e-08   2.718e-08
15-150  8.015e-08   4.611e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.32865        (-4.33251      -4.33251)
R1^2/D10^2  : 2.92379        (-2.92481      -2.92481)
kT2 [keV]   : 14.4344        (-2.93514      -14.4361)
R2^2/D10^2  : 0.143727    (-0.143682   0.200166)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.015e-08   5.260e-09
25- 50  2.589e-08   1.443e-08
50-150  3.369e-08   2.068e-08
15-150  6.973e-08   3.815e-08
Plot creation:
Thu Nov 10 12:44:09 EST 2022