batgrbproduct analysis for trigger=1314210

batgrbproduct Analysis for Trigger=1314210

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Thu Jun 19 20:41:30 EDT 2025
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1314210
======================================================================

  Trigger: 01314210      Segment: 000

  BAT Trigger Time: 769098964.544   [s; MET]
      Trigger Stop: 769098965.056   [s; MET]
               UTC: 2025-05-16T14:35:28.929340    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 334.561458739418   Dec: -9.13022768057874  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.41
     Image Trigger?:     NO
     Rate S/N Ratio:     14.3874945699382  [ if not an image trigger ]
     Image S/N Ratio:    8.41

  Flight Position:   [ source = BAT ]
    RA: 334.561458739418   Dec: -9.13022768057874  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 334.611559596065   Dec: -9.11996954812633  [deg; J2000]  
        { 22h 18m 26.8s , -09d 07' 11.9" }
         +/- 1.07394794527236 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.402084291614899 [arcmin] (formal 1-sigma fit error)
    SNR: 27.4698710535286
 
  Angular difference between Flight and Ground position is 3.031154 arcmin
 
  Partial Coding Fraction: 0.6171875    [ including projection effects ]

  Duration
     T90: 30.0360000133514 +/- 6.009781712102
        Measured from: -8.87600004673004
                   to: 21.1599999666214     [s; relative to TRIGTIME]
     T50: 11.2279999256134 +/- 3.18612302278263
        Measured from: 2.68400001525879
                   to: 13.9119999408722     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 19.3880000114441     
                   to: 20.3880000114441     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -19.960000038147     
                   to: 22.6959999799728     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     1.068443   1.448206   0.940731   0.288810
           0.052782   0.055930   0.047726   0.038384 [error]
 Peak      0.121305   0.161182   0.117846   0.035667
           0.010070   0.011399   0.009887   0.007016 [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 3.83e-07 6.27e-07 7.76e-07 1.91e-06 2.32e-06 3.70e-06   erg/cm2
              Error 3.12e-08 3.03e-08 4.83e-08 2.58e-07 1.15e-07 2.93e-07   erg/cm2
Peak flux Power-law 1.31e+00 1.26e+00 8.44e-01 8.84e-01 3.77e+00 4.29e+00   ph/cm2/s
              Error 1.68e-01 1.00e-01 8.18e-02 1.74e-01 2.90e-01 3.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.84e-07 6.27e-07 7.76e-07 1.93e-06 2.33e-06 3.75e-06   erg/cm2
              Error -------- 3.25e-08 5.34e-08 2.13e-07 1.18e-07 4.83e-07   erg/cm2
Peak flux Cutoff-PL 1.31e+00 1.25e+00 8.40e-01 9.17e-01 3.78e+00 4.34e+00   ph/cm2/s
              Error 1.83e-01 1.09e-01 8.95e-02 5.94e-01 3.70e-01 3.54e-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    1.690    0.085    -      -           5.89e-03 2.77e-04   63.090 57
CPL   1.691    0.085    9999.3   -0.0      5.88e-03 1.22e-03   63.100 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.576    0.130    -      -           2.95e-02 2.28e-03   40.280 57
CPL   1.577    0.131    9999.4    0.0      2.95e-02 2.22e-02   40.290 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: 19.392000 sec.
T50 in the 50-300 keV band: 7.872000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   42.656  -19.960   22.696
T90    30.036   -8.876   21.160
T50    11.228    2.684   13.912
Peak    1.000   19.388   20.388

Click here for the BAT GCN circular template

Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  334.6116    -9.1200   0.0070    38.1231  -159.7447         2.5247048     27.470 TRIG_01314210                 
 
Foreground time interval of the image:
-19.960   9.957 (delta_t =  29.917 [sec])
Background time interval of the image:
-239.544 -19.960 (delta_t = 219.584 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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)

Quad-rate summed light curves (from T0-300s to T0+1000s)

Spectral Evolution

Spectra

Notes:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from  -19.960 sec. to   22.696 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.68959     ( -0.0843909   0.0849784 )
Norm@50keV  : 5.88547E-03    ( -0.000277459   0.000276597 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.09     using 59 bins.
 Reduced chi-squared = 1.10684
# Null hypothesis probability of 2.70e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 42.66 sec: 0.778867 ( -0.037843  0.037975 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32697e-06 ( -1.14585e-07  1.14946e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -19.960 sec. to   22.696 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.69063     ( -0.0866392   0.083845 )
Epeak [keV] : 9999.32      ( -9999.35 -9999.36 )
Norm@50keV  : 5.88058E-03    ( -0.000271165   0.00216102 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.10     using 59 bins.
 Reduced chi-squared = 1.12679
# Null hypothesis probability of 2.40e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 42.66 sec: 0.779532 ( -0.039266  0.037916 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.32912e-06 ( -1.22124e-07  1.14769e-07 ) ergs/cm2

Band function

Time interval is from  -19.960 sec. to   22.696 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 13.4400  (  )
R^2/D10^2   : 0.120959  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  204.95     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.45e-18 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.975e-07   1.766e-08
25- 50  7.046e-07   4.053e-08
50-150  8.200e-07   7.785e-08
15-150  1.722e-06   9.833e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 144.991       (-26.6719      47.1275)
Norm        : 3.20401       (-0.194572     0.192948)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   68.27     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.46e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.436e-07   2.532e-08
25- 50  6.398e-07   5.460e-08
50-150  1.279e-06   3.827e-07
15-150  2.263e-06   4.279e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.62479        (-0.874278      0.916035)
R1^2/D10^2  : 0.727460        (-0.234856      0.386793)
kT2 [keV]   : 33.0973        (-6.0417      10.0528)
R2^2/D10^2  : 3.74451E-03    (-0.00208746   0.00371745)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   60.91     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.72e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.398e-07   4.855e-08
25- 50  6.696e-07   7.018e-08
50-150  1.332e-06   3.086e-07
15-150  2.342e-06   3.739e-07

Peak spectrum fit

Power-law model

Time interval is from   19.388 sec. to   20.388 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.57597     ( -0.129558   0.130919 )
Norm@50keV  : 2.95216E-02    ( -0.00228531   0.00227318 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.28     using 59 bins.
 Reduced chi-squared = 0.706667
# Null hypothesis probability of 9.54e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 3.76609 ( -0.28963  0.29001 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.76968e-07 ( -2.2976e-08  2.31071e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   19.388 sec. to   20.388 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.57703     ( -0.132748   0.129311 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 2.95470E-02    ( -0.0295865   0.0147512 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   40.29     using 59 bins.
 Reduced chi-squared = 0.719464
# Null hypothesis probability of 9.44e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 3.77747 ( -0.38201  0.35731 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.78356e-07 ( -3.24948e-08  2.98137e-08 ) ergs/cm2

Band function

Time interval is from   19.388 sec. to   20.388 sec.
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  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]    : 13.6015  (-1.41746  1.63587)
R^2/D10^2   : 0.585900  (-0.196138   0.285003)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  104.45     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.29e-04 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.295e-08   3.450e-09
25- 50  8.289e-08   8.960e-09
50-150  9.945e-08   1.601e-08
15-150  2.053e-07   1.935e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 198.730       (-61.5205      -198.831)
Norm        : 15.2897       (-1.13734     1.25181)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   42.47     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.24e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.809e-08   3.630e-09
25- 50  7.324e-08   1.468e-08
50-150  1.605e-07   6.370e-08
15-150  2.718e-07   6.530e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.61979        (-1.22542      1.36847)
R1^2/D10^2  : 3.57739        (-1.54427      3.05041)
kT2 [keV]   : 37.7471        (-9.74634      22.1416)
R2^2/D10^2  : 1.37097E-02    (-0.00979084   0.0222179)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   36.40     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.75e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.876e-08   8.305e-09
25- 50  7.562e-08   1.704e-08
50-150  1.693e-07   7.949e-08
15-150  2.836e-07   8.725e-08

Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

Power-law model

 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.56724     ( -0.105958   0.106414 )
Norm@50keV  : 5.30832E-03    ( -0.000319186   0.000317875 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.21     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.27e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 29.92 sec: 0.675405 ( -0.0418404  0.0419624 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49162e-06 ( -9.57335e-08  9.62547e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.56783     ( -0.108296   0.105195 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 5.31772E-03    ( -0.00227039   0.00271749 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   61.21     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.94e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 29.92 sec: 0.675436 ( -0.042873  0.041398 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49036e-06 ( -5.31349e-08  9.69199e-08 ) ergs/cm2

Band function

 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       :    (     )
beta        :     (     )
Epeak [keV] :       (   )
Norm@50keV   :     (     )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 6.27e-07
S(50-100 keV) = 7.76e-07

T90 vs. Hardness ratio plot

T90                                   = 30.0360000133514 sec.
Hardness ratio (energy fluence ratio) = 1.23764

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.35544
Count Ratio (50-100 keV) / (15-25 keV) = 0.880469

Mask shadow pattern

IMX = -7.362225741987247E-01, IMY = 2.716847853550358E-01

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

Spacecraft aspect plot

Bright source in the pre-burst/pre-slew/post-slew images

Pre-burst image of 15-350 keV band

Time interval of the image:
-239.544000 -19.960000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
330.0989  -9.8006    2.1  37.4 -167.0   2.0749   5.6 ------	UNKNOWN                       
342.1997   1.4864    3.5  49.4 -150.4   2.5856   3.3 ------	UNKNOWN

Pre-slew background subtracted image of 15-350 keV band

Time interval of the image:
-19.960000 9.956590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
334.4593 -23.7461    2.3  23.5 -158.5   0.3159   4.9 ------	UNKNOWN                       
334.6116  -9.1200    0.4  38.1 -159.7   2.5247  27.5 ------	UNKNOWN                       
 27.8595 -61.5366    2.4  34.1  -27.9   0.3957   4.7 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
87.356600 962.576000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
308.2254  40.9366   87.9  55.6  177.1   0.5923   0.1    5.3	Cyg X-3                       
326.2050  38.4804    8.3  48.2 -167.7  -3.7555  -1.4    9.7	Cyg X-2                       
297.7690   1.0692    2.6  38.1  124.7  12.8553   4.5 ------	UNKNOWN                       
313.7547  39.0437    3.1  51.9 -179.4  12.3636   3.7 ------	UNKNOWN                       
329.0223  27.9014    2.3  37.4 -167.0   6.7773   5.0 ------	UNKNOWN                       
351.3335  -3.0333    2.7  17.7  -88.0   5.1085   4.2  550.7	UNKNOWN                       
  1.5182  26.5604    2.5  44.2 -123.4  22.5754   4.6 ------	UNKNOWN                       
 16.9086  -5.1677    2.0  42.2  -71.3  26.1389   5.8 ------	UNKNOWN

Plot creation:
Fri Jun 20 01:39:28 EDT 2025