batgrbproduct analysis for trigger=1209401

batgrbproduct Analysis for Trigger=1209401

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Jan 18 09:40:14 EST 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1209401/GCN5_download_cron
======================================================================

  Trigger: 01209401      Segment: 000

  BAT Trigger Time: 727200600   [s; MET]
      Trigger Stop: 727200664   [s; MET]
               UTC: 2024-01-17T16:09:27.251840    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 299.412284923332   Dec: 34.6757013714688  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.88
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    11.88

  Flight Position:   [ source = BAT ]
    RA: 299.412284923332   Dec: 34.6757013714688  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 299.399189204516   Dec: 34.6638294831381  [deg; J2000]  
        { 19h 57m 35.8s , +34d 39' 49.8" }
         +/- 1.81586228912408 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.669713612187376 [arcmin] (formal 1-sigma fit error)
    SNR: 12.9717908522176
 
  Angular difference between Flight and Ground position is 0.961771 arcmin
 
  Partial Coding Fraction: 1.015625    [ including projection effects ]

  Duration
     T90: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]
     T50: 64 +/- 
        Measured from: 0
                   to: 64     [s; relative to TRIGTIME]

    WARNING: battblocks failed.  Used TDRSS fore/background intervals

  Fluence
     Peak Flux  (peak 64 second)
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 64     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.630368   0.552026   0.200188   0.055944
           0.049050   0.049625   0.041674   0.036241 [error]
 Peak      0.630368   0.552026   0.200188   0.055944
           0.049050   0.049625   0.041674   0.036241 [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 1.79e-07 2.13e-07 1.83e-07 2.69e-07 6.70e-07 8.44e-07   erg/cm2
              Error 2.31e-08 2.24e-08 3.69e-08 1.03e-07 8.43e-08 1.50e-07   erg/cm2
Peak flux Power-law 9.15e-02 6.05e-02 2.60e-02 1.54e-02 1.86e-01 1.93e-01   ph/cm2/s
              Error 1.21e-02 6.21e-03 5.06e-03 5.52e-03 1.83e-02 1.93e-02   ph/cm2/s
 
Fluence   Cutoff-PL 1.76e-07 2.26e-07 1.65e-07 8.27e-08 6.19e-07 6.49e-07   erg/cm2
              Error 2.42e-08 3.26e-08 -------- 1.58e-07 1.16e-07 2.30e-07   erg/cm2
Peak flux Cutoff-PL 8.95e-02 6.42e-02 2.38e-02 5.85e-03 1.82e-01 1.83e-01   ph/cm2/s
              Error 1.28e-02 9.17e-03 7.62e-03 1.01e-02 1.94e-02 2.31e-02   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    2.217    0.203    -      -           1.11e-03 1.62e-04   42.530 57
CPL   1.670    0.959      21.4    0.0      2.48e-03 0.00e+00   41.620 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.217    0.203    -      -           1.11e-03 1.62e-04   42.530 57
CPL   1.670    0.959      21.4    0.0      2.48e-03 0.00e+00   41.620 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   64.000    0.000   64.000
T90    64.000    0.000   64.000
T50    64.000    0.000   64.000
Peak   64.000    0.000   64.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  299.3992 +34.6638 0.0148    6.0  -58.1       1.4608    13.0  TRIG_01209401       
------------------------------------------
 
Foreground time interval of the image:
  0.000  64.000 (delta_t =  64.000 [sec])
Background time interval of the image:

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    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.21700     ( -0.196205   0.208946 )
Norm@50keV  : 1.11083E-03    ( -0.000163688   0.000161136 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.53 using 59 PHA bins.
# Reduced chi-squared =         0.7461 for     57 degrees of freedom 
# Null hypothesis probability =   9.232175e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.185560 ( -0.0182837  0.0182838 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.70067e-07 ( -8.29651e-08  8.55507e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.67039     ( -1.44086   0.476375 )
Epeak [keV] : 21.3815      (   )
Norm@50keV  : 2.48463E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.62 using 59 PHA bins.
# Reduced chi-squared =         0.7432 for     56 degrees of freedom 
# Null hypothesis probability =   9.238960e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.181803 ( -0.019446  0.019413 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.19168e-07 ( -1.10923e-07  1.20602e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.75988   ( -5.45368   -3.75988 )
beta        : -2.50168    ( -0.483329   0.304265 )
Epeak [keV] : 22.9017      ( -4.73441 8.4958 )
Norm@50keV   : 43.9738    ( -43.9743   397.771 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.73 using 59 PHA bins.
# Reduced chi-squared =         0.6859 for     55 degrees of freedom 
# Null hypothesis probability =   9.636471e-01
 
Photon flux (15-150 keV)    in 64 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]    : 7.57582  (-0.775522  0.875636)
R^2/D10^2   : 0.253828  (-0.0913053   0.141443)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.01 using 59 PHA bins.
# Reduced chi-squared =         0.8948 for     57 degrees of freedom 
# Null hypothesis probability =   6.982256e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.614e-07   2.538e-08
25- 50  2.564e-07   3.446e-08
50-150  5.610e-08   2.065e-08
15-150  4.740e-07   5.741e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 41.7329       (-10.0675      15.5296)
Norm        : 1.16651       (-0.214805     0.274892)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.738e-07   2.320e-08
25- 50  2.328e-07   2.970e-08
50-150  1.886e-07   6.298e-08
15-150  5.952e-07   8.323e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.53160        (-0.978874      0.971047)
R1^2/D10^2  : 0.419967        (-0.17338      0.346443)
kT2 [keV]   : 38.5320        (-19.4743      -38.535)
R2^2/D10^2  : 3.38559E-04    (-0.000320472   0.00309169)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.747e-07   3.866e-08
25- 50  2.321e-07   5.974e-08
50-150  2.883e-07   1.564e-07
15-150  6.951e-07   2.177e-07

Peak spectrum fit

Power-law model
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.21700     ( -0.196205   0.208946 )
Norm@50keV  : 1.11083E-03    ( -0.000163688   0.000161136 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.53 using 59 PHA bins.
# Reduced chi-squared =         0.7461 for     57 degrees of freedom 
# Null hypothesis probability =   9.232175e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.185560 ( -0.0182837  0.0182838 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.70067e-07 ( -8.29651e-08  8.55507e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.000 sec. to   64.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.67039     ( -1.44086   0.476375 )
Epeak [keV] : 21.3815      (   )
Norm@50keV  : 2.48463E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.62 using 59 PHA bins.
# Reduced chi-squared =         0.7432 for     56 degrees of freedom 
# Null hypothesis probability =   9.238960e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.181803 ( -0.019446  0.019413 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.19168e-07 ( -1.10923e-07  1.20602e-07 ) ergs/cm2
 
Band function
Time interval is from    0.000 sec. to   64.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 3.75988   ( -5.45382   -3.75988 )
beta        : -2.50168    ( -0.483329   0.304265 )
Epeak [keV] : 22.9017      ( -4.73441 8.49219 )
Norm@50keV   : 43.9738    ( -43.9743   235.671 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.73 using 59 PHA bins.
# Reduced chi-squared =         0.6859 for     55 degrees of freedom 
# Null hypothesis probability =   9.636471e-01
 
Photon flux (15-150 keV)    in 64 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]    : 7.57582  (-0.775522  0.875636)
R^2/D10^2   : 0.253828  (-0.0913053   0.141443)
(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  1.614e-07   2.557e-08
25- 50  2.564e-07   3.789e-08
50-150  5.610e-08   2.039e-08
15-150  4.740e-07   6.339e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 41.7329       (-10.0675      15.5296)
Norm        : 1.16651       (-0.214805     0.274892)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.738e-07   2.042e-08
25- 50  2.328e-07   2.880e-08
50-150  1.886e-07   5.648e-08
15-150  5.952e-07   8.848e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.53160        (-0.978874      0.971047)
R1^2/D10^2  : 0.419967        (-0.17338      0.346443)
kT2 [keV]   : 38.5320        (-19.4743      -38.535)
R2^2/D10^2  : 3.38559E-04    (-0.000320472   0.00309169)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.747e-07   4.106e-08
25- 50  2.321e-07   5.507e-08
50-150  2.883e-07   1.715e-07
15-150  6.951e-07   2.318e-07
Plot creation:
Thu Jan 18 09:42:05 EST 2024