batgrbproduct analysis for trigger=1242223

batgrbproduct Analysis for Trigger=1242223

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sun Jul 14 14:40:22 EDT 2024
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1242223/GCN5_download_cron
======================================================================

  Trigger: 01242223      Segment: 000

  BAT Trigger Time: 742447666.624   [s; MET]
      Trigger Stop: 742447674.816   [s; MET]
               UTC: 2024-07-12T03:27:12.831520    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 122.368929948927   Dec: -37.0767268156002  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.11
     Image Trigger?:     NO
     Rate S/N Ratio:     12.6095202129185  [ if not an image trigger ]
     Image S/N Ratio:    7.11

  Flight Position:   [ source = BAT ]
    RA: 122.368929948927   Dec: -37.0767268156002  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 122.384514269066   Dec: -37.0934094989021  [deg; J2000]  
        { 08h 09m 32.3s , -37d 05' 36.3" }
         +/- 2.66760757965939 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.51069612487094 [arcmin] (formal 1-sigma fit error)
    SNR: 7.48811917203463
 
  Angular difference between Flight and Ground position is 1.248336 arcmin
 
  Partial Coding Fraction: 0.9375    [ including projection effects ]

  Duration
     T90: 16.4520000219345 +/- 4.8915769241868
        Measured from: -4.2519998550415
                   to: 12.200000166893     [s; relative to TRIGTIME]
     T50: 6.93599998950958 +/- 3.88233015960244
        Measured from: 0.932000160217285
                   to: 7.86800014972687     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1.24000000953674     
                   to: 2.24000000953674     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.67999994754791     
                   to: 12.5920000076294     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.081815   0.146160   0.140041   0.022127
           0.024952   0.025926   0.022538   0.019573 [error]
 Peak      0.010876   0.023295   0.025280   0.002632
           0.006066   0.006478   0.005614   0.004746 [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 2.89e-08 6.06e-08 9.94e-08 3.68e-07 2.74e-07 5.57e-07   erg/cm2
              Error 9.05e-09 1.17e-08 2.13e-08 1.73e-07 5.37e-08 1.88e-07   erg/cm2
Peak flux Power-law 1.38e-01 1.57e-01 1.28e-01 1.73e-01 4.86e-01 5.96e-01   ph/cm2/s
              Error 7.11e-02 5.15e-02 4.36e-02 1.22e-01 1.45e-01 1.80e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.49e-08 6.50e-08 1.06e-07 1.40e-07 2.61e-07 3.35e-07   erg/cm2
              Error 1.08e-08 1.41e-08 2.46e-08 1.71e-07 5.72e-08 2.12e-07   erg/cm2
Peak flux Cutoff-PL 9.94e-02 1.70e-01 1.47e-01 6.33e-02 4.61e-01 4.79e-01   ph/cm2/s
              Error 8.77e-02 6.30e-02 5.58e-02 1.40e-01 1.53e-01 1.73e-01   ph/cm2/s
 
Fluence        Band 2.48e-08 6.41e-08 1.06e-07 1.57e-07 2.64e-07 3.54e-07   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.06e-01 1.68e-01 1.45e-01 7.39e-02 4.67e-01 4.92e-01   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    1.285    0.298    -      -           1.60e-03 2.83e-04   52.510 57
CPL   0.516    1.237     101.1    0.0      3.78e-03 0.00e+00   51.210 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.299    0.492    -      -           4.08e-03 1.19e-03   65.220 57
CPL  -0.056    2.695      83.8  -13.0      1.71e-02 2.54e-01   64.120 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   17.272   -4.680   12.592
T90    16.452   -4.252   12.200
T50     6.936    0.932    7.868
Peak    1.000    1.240    2.240

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  122.3845 -37.0934 0.0257   21.4   -3.1       0.3762     7.5  TRIG_01242223       
------------------------------------------
 
Foreground time interval of the image:
 -4.680  12.592 (delta_t =  17.272 [sec])
Background time interval of the image:
-239.624 -237.214 (delta_t =   2.410 [sec])
-229.624 -79.904 (delta_t = 149.720 [sec])
-76.624  -4.680 (delta_t =  71.944 [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   -4.680 sec. to   12.592 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28542     ( -0.300701   0.295605 )
Norm@50keV  : 1.60240E-03    ( -0.000283322   0.000282578 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.51 using 59 PHA bins.
# Reduced chi-squared =         0.9212 for     57 degrees of freedom 
# Null hypothesis probability =   6.440947e-01
 
Photon flux (15-150 keV)    in 17.27 sec: 0.190667 ( -0.0343117  0.0344095 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.7445e-07 ( -5.33189e-08  5.41195e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.680 sec. to   12.592 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.515721     ( -1.50876   0.965341 )
Epeak [keV] : 101.146      (   )
Norm@50keV  : 3.78102E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.21 using 59 PHA bins.
# Reduced chi-squared =         0.9144 for     56 degrees of freedom 
# Null hypothesis probability =   6.565826e-01
 
Photon flux (15-150 keV)    in 17.27 sec: 0.184758 ( -0.035685  0.035584 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61323e-07 ( -5.66715e-08  5.78096e-08 ) ergs/cm2
 
Band function
Time interval is from   -4.680 sec. to   12.592 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.517256   ( -0.546025   1.12717 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 101.241      ( -33.9573 -101.241 )
Norm@50keV   : 3.77437E-03    ( -0.00236827   0.0147481 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.21 using 59 PHA bins.
# Reduced chi-squared =         0.9310 for     55 degrees of freedom 
# Null hypothesis probability =   6.203785e-01
 
Photon flux (15-150 keV)    in 17.27 sec: 0.186842 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.64119e-07 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 17.8029  (-3.51715  4.62476)
R^2/D10^2   : 1.28283E-02  (-0.00693672   0.0142495)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.27 using 59 PHA bins.
# Reduced chi-squared =         0.9696 for     57 degrees of freedom 
# Null hypothesis probability =   5.403793e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.411e-08   5.722e-09
25- 50  6.471e-08   2.533e-08
50-150  1.484e-07   5.154e-08
15-150  2.272e-07   6.616e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-71.6838      -200)
Norm        : 0.791232       (-0.140407     0.140407)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.403e-08   1.984e-08
25- 50  6.546e-08   3.752e-08
50-150  1.436e-07   8.095e-08
15-150  2.430e-07   1.420e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.32396        (-3.72428      7.5713)
R1^2/D10^2  : 0.193483        (-0.174922      8.04623)
kT2 [keV]   : 23.5036        (-6.61425      35.1803)
R2^2/D10^2  : 4.37291E-03    (-0.00419207   0.0101856)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.656e-08   1.559e-08
25- 50  6.236e-08   3.159e-08
50-150  1.717e-07   1.040e-07
15-150  2.607e-07   1.362e-07

Peak spectrum fit

Power-law model
Time interval is from    1.240 sec. to    2.240 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29877     ( -0.494032   0.490915 )
Norm@50keV  : 4.07730E-03    ( -0.00119209   0.00119065 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.22 using 59 PHA bins.
# Reduced chi-squared =          1.144 for     57 degrees of freedom 
# Null hypothesis probability =   2.125698e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.486326 ( -0.144993  0.145679 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.03028e-08 ( -1.28012e-08  1.30499e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.240 sec. to    2.240 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -5.60345E-02     ( -3.66505   1.72423 )
Epeak [keV] : 83.8497      ( -57.8997 -83.8734 )
Norm@50keV  : 1.70764E-02    ( -0.0170902   0.490569 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.12 using 59 PHA bins.
# Reduced chi-squared =          1.145 for     56 degrees of freedom 
# Null hypothesis probability =   2.133143e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.460557 ( -0.154028  0.15249 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.81389e-08 ( -1.28383e-08  1.35435e-08 ) ergs/cm2
 
Band function
Time interval is from    1.240 sec. to    2.240 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 5.11308E-02   ( -1.26498   3.32375 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 83.9409      ( -29.823 122.179 )
Norm@50keV   : 1.69966E-02    ( -0.0169966   0.491542 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.12 using 59 PHA bins.
# Reduced chi-squared =          1.166 for     55 degrees of freedom 
# Null hypothesis probability =   1.872484e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.466939 (    ) 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]    : 18.4860  (-5.002  7.45318)
R^2/D10^2   : 2.99318E-02  (-0.0299325   0.056913)
(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  2.030e-09   1.301e-09
25- 50  9.574e-09   5.872e-09
50-150  2.391e-08   1.463e-08
15-150  3.551e-08   2.199e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (-111.194      -199.363)
Norm        : 2.02531       (-0.594638     0.594653)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.043e-09   3.045e-09
25- 50  9.701e-09   5.900e-09
50-150  2.128e-08   1.281e-08
15-150  3.602e-08   2.180e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 1.28064        (-1.63781      5.07037)
R1^2/D10^2  : 1.45913E+04        (-14404.3      -14404.3)
kT2 [keV]   : 19.4474        (-5.28905      8.26313)
R2^2/D10^2  : 2.46056E-02    (-0.0246011   0.0317095)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  0.000e+00   0.000e+00
25- 50  0.000e+00   0.000e+00
50-150  0.000e+00   0.000e+00
15-150  0.000e+00   0.000e+00
Plot creation:
Sun Jul 14 14:43:55 EDT 2024