batgrbproduct analysis for trigger=1101675

batgrbproduct Analysis for Trigger=1101675

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sat Apr  9 10:51:44 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1101675/GCN5_download_cron
======================================================================

  Trigger: 01101675      Segment: 000

  BAT Trigger Time: 671089593.152   [s; MET]
      Trigger Stop: 671089593.664   [s; MET]
               UTC: 2022-04-08T05:46:04.227800    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 202.402022913259   Dec: 47.0613353293178  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    12.8
     Image Trigger?:     NO
     Rate S/N Ratio:     28.5657137141714  [ if not an image trigger ]
     Image S/N Ratio:    12.8

  Flight Position:   [ source = BAT ]
    RA: 202.402022913259   Dec: 47.0613353293178  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 202.398633294394   Dec: 47.0653945692685  [deg; J2000]  
        { 13h 29m 35.7s , +47d 03' 55.4" }
         +/- 1.16077904237014 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.534894039960441 [arcmin] (formal 1-sigma fit error)
    SNR: 24.5821016862189
 
  Angular difference between Flight and Ground position is 0.280199 arcmin
 
  Partial Coding Fraction: 0.3476562    [ including projection effects ]

  Duration
     T90: 17.2479999065399 +/- 1.10252795732478
        Measured from: -0.0879998207092285
                   to: 17.1600000858307     [s; relative to TRIGTIME]
     T50: 4.44799995422363 +/- 1.62315742591311
        Measured from: 1.32000017166138
                   to: 5.76800012588501     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2.4760000705719     
                   to: 3.4760000705719     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -0.547999978065491     
                   to: 18.2560000419617     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.859249   0.906430   0.448274  -0.042650
           0.050206   0.051967   0.044436   0.039095 [error]
 Peak      0.174315   0.240510   0.096874  -0.003570
           0.014779   0.016161   0.012626   0.009357 [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 3.11e-07 3.89e-07 3.54e-07 5.61e-07 1.25e-06 1.61e-06   erg/cm2
              Error 2.97e-08 2.68e-08 4.22e-08 1.30e-07 9.85e-08 1.79e-07   erg/cm2
Peak flux Power-law 2.28e+00 1.61e+00 7.46e-01 4.85e-01 4.86e+00 5.12e+00   ph/cm2/s
              Error 2.61e-01 1.37e-01 9.91e-02 1.17e-01 4.17e-01 4.36e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.86e-07 4.32e-07 3.36e-07 1.37e-07 1.15e-06 1.19e-06   erg/cm2
              Error 3.33e-08 3.59e-08 5.09e-08 1.10e-07 1.06e-07 1.54e-07   erg/cm2
Peak flux Cutoff-PL 1.89e+00 2.02e+00 7.23e-01 6.22e-02 4.69e+00 4.70e+00   ph/cm2/s
              Error 3.03e-01 2.06e-01 1.36e-01 5.57e-02 4.20e-01 4.23e-01   ph/cm2/s
 
Fluence        Band 2.87e-07 4.24e-07 3.48e-07 1.86e-07 1.18e-06 1.25e-06   erg/cm2
              Error 3.14e-08 3.54e-08 5.18e-08 -------- 1.12e-07 1.59e-07   erg/cm2
Peak flux      Band 1.89e+00 2.02e+00 7.23e-01 6.25e-02 4.69e+00 4.70e+00   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    2.136    0.128    -      -           7.11e-03 6.20e-04   72.770 57
CPL   1.192    0.567      35.3    8.8      2.50e-02 2.19e-02   62.400 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.107    0.141    -      -           3.08e-02 3.21e-03   66.280 57
CPL   0.036    0.880      39.1    4.4      4.94e-01 9.17e-01   41.110 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: 3.136000 sec.
T50 in the 50-300 keV band: 2.304000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   18.804   -0.548   18.256
T90    17.248   -0.088   17.160
T50     4.448    1.320    5.768
Peak    1.000    2.476    3.476

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  202.3986 +47.0654 0.0078   37.1  147.0       1.9552    24.6  TRIG_01101675       
------------------------------------------
 
Foreground time interval of the image:
 -0.548   8.249 (delta_t =   8.797 [sec])
Background time interval of the image:
-51.051  -0.548 (delta_t =  50.503 [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   -0.548 sec. to   18.256 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.13623     ( -0.125371   0.130326 )
Norm@50keV  : 7.10576E-03    ( -0.00062379   0.000615843 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          72.77 using 59 PHA bins.
# Reduced chi-squared =          1.277 for     57 degrees of freedom 
# Null hypothesis probability =   7.769474e-02
 
Photon flux (15-150 keV)    in 18.8 sec: 1.13834 ( -0.0784296  0.0784767 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24589e-06 ( -9.78846e-08  9.90339e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.548 sec. to   18.256 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19171     ( -0.606653   0.527653 )
Epeak [keV] : 35.3170      ( -10.6228 7.00401 )
Norm@50keV  : 2.50229E-02    ( -0.0124644   0.0313305 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.40 using 59 PHA bins.
# Reduced chi-squared =          1.114 for     56 degrees of freedom 
# Null hypothesis probability =   2.593892e-01
 
Photon flux (15-150 keV)    in 18.8 sec: 1.09903 ( -0.08072  0.08086 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.15121e-06 ( -1.04464e-07  1.08235e-07 ) ergs/cm2
 
Band function
Time interval is from   -0.548 sec. to   18.256 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.19221   ( -0.319757   0.893731 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 35.3066      ( -10.6173 6.92825 )
Norm@50keV   : 2.50043E-02    ( -0.012449   0.0313734 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.40 using 59 PHA bins.
# Reduced chi-squared =          1.134 for     55 degrees of freedom 
# Null hypothesis probability =   2.300296e-01
 
Photon flux (15-150 keV)    in 18.8 sec: 1.11707 ( 5.88293  -0.09278 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.17895e-06 ( -1.17882e-06  -1.40491e-07 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.37813  (-0.764928  0.829878)
R^2/D10^2   : 0.664580  (-0.188732   0.265294)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          97.33 using 59 PHA bins.
# Reduced chi-squared =          1.708 for     57 degrees of freedom 
# Null hypothesis probability =   6.984734e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.182e-07   2.630e-08
25- 50  4.940e-07   3.826e-08
50-150  2.135e-07   4.326e-08
15-150  9.257e-07   8.084e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.7674       (-9.10673      12.2221)
Norm        : 6.22008       (-0.680565     0.828664)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.904e-07   2.688e-08
25- 50  4.277e-07   2.980e-08
50-150  4.440e-07   7.877e-08
15-150  1.162e-06   1.036e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.70544        (-0.951185      1.01569)
R1^2/D10^2  : 3.26241        (-1.45482      3.16755)
kT2 [keV]   : 17.3104        (-3.11339      4.50297)
R2^2/D10^2  : 3.94786E-02    (-0.0250122   0.0556117)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.909e-07   8.042e-08
25- 50  4.216e-07   1.101e-07
50-150  4.514e-07   2.356e-07
15-150  1.164e-06   3.449e-07

Peak spectrum fit

Power-law model
Time interval is from    2.476 sec. to    3.476 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.10672     ( -0.137537   0.143876 )
Norm@50keV  : 3.08153E-02    ( -0.0032288   0.00318751 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          66.28 using 59 PHA bins.
# Reduced chi-squared =          1.163 for     57 degrees of freedom 
# Null hypothesis probability =   1.874543e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.86423 ( -0.416814  0.416959 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.86481e-07 ( -2.75641e-08  2.78308e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    2.476 sec. to    3.476 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 3.58676E-02     ( -0.962768   0.798108 )
Epeak [keV] : 39.0546      ( -4.29085 4.55228 )
Norm@50keV  : 0.493513    ( -0.493594   1.33943 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.11 using 59 PHA bins.
# Reduced chi-squared =         0.7340 for     56 degrees of freedom 
# Null hypothesis probability =   9.320743e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.69105 ( -0.41962  0.42032 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.58767e-07 ( -2.6565e-08  2.7764e-08 ) ergs/cm2
 
Band function
Time interval is from    2.476 sec. to    3.476 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -5.88691E-02   ( -0.772579   0.985354 )
beta        : -9.37167    ( 9.37167   19.3713 )
Epeak [keV] : 39.1249      ( -4.13358 4.48389 )
Norm@50keV   : 0.476905    ( -0.477012   6.04774 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.11 using 59 PHA bins.
# Reduced chi-squared =         0.7474 for     55 degrees of freedom 
# Null hypothesis probability =   9.178737e-01
 
Photon flux (15-150 keV)    in 1 sec: 4.69200 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.58698e-07 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 9.94775  (-0.799856  0.861478)
R^2/D10^2   : 2.48369  (-0.691683   0.956823)
(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  4.997e-08   6.980e-09
25- 50  1.233e-07   1.215e-08
50-150  6.339e-08   1.349e-08
15-150  2.367e-07   2.365e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 53.8042       (-8.87357      14.6093)
Norm        : 27.4207       (-3.60236     3.68167)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.811e-08   6.740e-09
25- 50  1.003e-07   1.666e-08
50-150  1.042e-07   4.304e-08
15-150  2.726e-07   6.630e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.25893        (-2.96871      2.82328)
R1^2/D10^2  : 7.26993        (-4.18435      51.3119)
kT2 [keV]   : 13.5690        (-3.06074      13.314)
R2^2/D10^2  : 0.489460    (-0.454103   1.33611)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.919e-08   3.106e-08
25- 50  1.125e-07   5.780e-08
50-150  8.675e-08   4.732e-08
15-150  2.585e-07   1.297e-07
Plot creation:
Sat Apr  9 11:01:53 EDT 2022