batgrbproduct analysis for trigger=844192

batgrbproduct Analysis for Trigger=844192

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Mon Jun 25 18:51:30 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger844192/GCN5_download_cron
======================================================================

  Trigger: 00844192      Segment: 000

  BAT Trigger Time: 551541001.536   [s; MET]
      Trigger Stop: 551541009.728   [s; MET]
               UTC: 2018-06-24T13:49:40.378860    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 318.071401165986   Dec: -2.33235276584909  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    11.04
     Image Trigger?:     NO
     Rate S/N Ratio:     11.0453610171873  [ if not an image trigger ]
     Image S/N Ratio:    11.04

  Flight Position:   [ source = BAT ]
    RA: 318.071401165986   Dec: -2.33235276584909  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 318.095543018449   Dec: -2.35581950029963  [deg; J2000]  
        { 21h 12m 22.9s , -02d 21' 21.0" }
         +/- 1.31361664008162 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.431495441223523 [arcmin] (formal 1-sigma fit error)
    SNR: 20.6004858949416
 
  Angular difference between Flight and Ground position is 2.019195 arcmin
 
  Partial Coding Fraction: 0.4765625    [ including projection effects ]

  Duration
     T90: 486.395999908447 +/- 38.5043168772254
        Measured from: -42.4559998512268
                   to: 443.94000005722     [s; relative to TRIGTIME]
     T50: 328.015999913216 +/- 6.77248104226581
        Measured from: 8.5200001001358
                   to: 336.536000013351     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 6.01999998092651     
                   to: 7.01999998092651     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -60.6080000400543     
                   to: 541.799999952316     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     3.524363   3.969407   2.160056   0.612323
           0.154588   0.160025   0.139691   0.122589 [error]
 Peak      0.053290   0.064315   0.036092   0.010775
           0.008791   0.009334   0.007843   0.006354 [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 1.18e-06 1.70e-06 1.81e-06 3.57e-06 5.80e-06 8.25e-06   erg/cm2
              Error 9.81e-08 8.45e-08 1.44e-07 6.00e-07 3.25e-07 7.22e-07   erg/cm2
Peak flux Power-law 5.60e-01 4.57e-01 2.53e-01 2.06e-01 1.36e+00 1.48e+00   ph/cm2/s
              Error 1.37e-01 7.52e-02 6.60e-02 1.04e-01 2.24e-01 2.47e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.19e-06 1.70e-06 1.80e-06 3.50e-06 5.79e-06 8.19e-06   erg/cm2
              Error 7.64e-08 8.40e-08 1.44e-07 9.37e-07 3.40e-07 1.17e-06   erg/cm2
Peak flux Cutoff-PL 5.55e-01 4.62e-01 2.54e-01 1.84e-01 1.36e+00 1.45e+00   ph/cm2/s
              Error 1.47e-01 8.92e-02 6.83e-02 1.60e-01 2.28e-01 2.78e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 5.63e-01 4.58e-01 2.52e-01 2.02e-01 1.36e+00 1.47e+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    1.909    0.100    -      -           1.05e-03 5.93e-05   47.110 57
CPL   1.908    0.214    9999.4    0.0      1.05e-03 0.00e+00   47.110 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.854    0.306    -      -           9.67e-03 1.92e-03   40.530 57
CPL   1.776    0.981     128.4    0.0      1.07e-02 0.00e+00   40.520 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: 462.528000 sec.
T50 in the 50-300 keV band: 308.800000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  602.408  -60.608  541.800
T90   486.396  -42.456  443.940
T50   328.016    8.520  336.536
Peak    1.000    6.020    7.020

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  318.0955  -2.3558 0.0094   28.6  124.2       4.4150    20.6  TRIG_00844192       
------------------------------------------
 
Foreground time interval of the image:
-60.608  47.665 (delta_t = 108.273 [sec])
Background time interval of the image:
-239.536 -60.608 (delta_t = 178.928 [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  -60.608 sec. to  541.800 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90938     ( -0.0988889   0.10065 )
Norm@50keV  : 1.04638E-03    ( -5.96079e-05   5.89923e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.11 using 59 PHA bins.
# Reduced chi-squared =         0.8265 for     57 degrees of freedom 
# Null hypothesis probability =   8.219542e-01
 
Photon flux (15-150 keV)    in 602.4 sec: 0.150768 ( -0.00776677  0.00779127 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.79574e-06 ( -3.2357e-07  3.2601e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -60.608 sec. to  541.800 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.90848     ( -0.325731   0.101685 )
Epeak [keV] : 9999.36      (   )
Norm@50keV  : 1.04696E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.11 using 59 PHA bins.
# Reduced chi-squared =         0.8412 for     56 degrees of freedom 
# Null hypothesis probability =   7.954013e-01
 
Photon flux (15-150 keV)    in 602.4 sec: 0.150818 ( -0.00781  0.007674 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.79153e-06 ( -3.54169e-07  3.26441e-07 ) ergs/cm2
 
Band function
Time interval is from  -60.608 sec. to  541.800 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.34289   ( 1.34116   1.34116 )
beta        : -1.95222    ( 1.9522   0.132627 )
Epeak [keV] : 34.9984      ( -34.901 -34.901 )
Norm@50keV   : 2.51581E-03    ( -0.00154606   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.63 using 59 PHA bins.
# Reduced chi-squared =         0.8478 for     55 degrees of freedom 
# Null hypothesis probability =   7.817225e-01
 
Photon flux (15-150 keV)    in 602.4 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]    : 10.9752  (  )
R^2/D10^2   : 4.68950E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         152.00 using 59 PHA bins.
# Reduced chi-squared =         2.6667 for     57 degrees of freedom 
# Null hypothesis probability =   1.404810e-10
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.107e-07   6.566e-08
25- 50  2.004e-06   1.205e-07
50-150  1.361e-06   1.738e-07
15-150  4.075e-06   2.467e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 85.7549       (-14.8287      20.2516)
Norm        : 0.677771       (-0.0545619     0.0621324)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.53 using 59 PHA bins.
# Reduced chi-squared =         0.9567 for     57 degrees of freedom 
# Null hypothesis probability =   5.682802e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.063e-06   8.644e-08
25- 50  1.779e-06   9.488e-08
50-150  2.629e-06   6.684e-07
15-150  5.471e-06   5.596e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.75343        (-0.959051      0.996473)
R1^2/D10^2  : 0.231450        (-0.0875873      0.170603)
kT2 [keV]   : 27.3946        (-6.07263      11.2637)
R2^2/D10^2  : 1.14068E-03    (-0.000751439   0.00169058)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.62 using 59 PHA bins.
# Reduced chi-squared =         0.9385 for     55 degrees of freedom 
# Null hypothesis probability =   6.047260e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.068e-06   1.645e-07
25- 50  1.759e-06   2.157e-07
50-150  2.940e-06   8.765e-07
15-150  5.768e-06   1.079e-06

Peak spectrum fit

Power-law model
Time interval is from    6.020 sec. to    7.020 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.85401     ( -0.293479   0.319071 )
Norm@50keV  : 9.66953E-03    ( -0.00195537   0.00187694 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.53 using 59 PHA bins.
# Reduced chi-squared =         0.7111 for     57 degrees of freedom 
# Null hypothesis probability =   9.513782e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.36137 ( -0.224463  0.224528 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.89052e-08 ( -1.75025e-08  1.79082e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    6.020 sec. to    7.020 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.77603     ( -1.24759   0.714227 )
Epeak [keV] : 128.401      (   )
Norm@50keV  : 1.06843E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.52 using 59 PHA bins.
# Reduced chi-squared =         0.7235 for     56 degrees of freedom 
# Null hypothesis probability =   9.406765e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.35805 ( -0.22839  0.22672 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.83824e-08 ( -1.91918e-08  1.83126e-08 ) ergs/cm2
 
Band function
Time interval is from    6.020 sec. to    7.020 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.46241   ( 1.46058   1.46058 )
beta        : -1.87169    ( 1.88233   0.321931 )
Epeak [keV] : 36.4315      ( -38.3074 -38.3074 )
Norm@50keV   : 1.85834E-02    ( -0.00776981   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.53 using 59 PHA bins.
# Reduced chi-squared =         0.7369 for     55 degrees of freedom 
# Null hypothesis probability =   9.276094e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.36318 (    ) 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]    : 10.7488  (-2.13512  2.75077)
R^2/D10^2   : 0.483955  (-0.276295   0.620305)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.59 using 59 PHA bins.
# Reduced chi-squared =         0.9051 for     57 degrees of freedom 
# Null hypothesis probability =   6.773779e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.162e-08   3.959e-09
25- 50  3.190e-08   8.895e-09
50-150  2.044e-08   7.880e-09
15-150  6.397e-08   1.704e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 92.8395       (-40.9046      -92.8403)
Norm        : 6.12480       (-1.30659     1.82076)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.01 using 59 PHA bins.
# Reduced chi-squared =         0.7195 for     57 degrees of freedom 
# Null hypothesis probability =   9.454342e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.599e-08   3.510e-09
25- 50  2.723e-08   6.345e-09
50-150  4.226e-08   2.676e-08
15-150  8.549e-08   3.292e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.60627        (-2.64748      3.35464)
R1^2/D10^2  : 3.94345        (-3.06854      54.8192)
kT2 [keV]   : 21.9478        (-8.79743      39.6534)
R2^2/D10^2  : 2.59848E-02    (-0.0241476   0.0461574)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          41.22 using 59 PHA bins.
# Reduced chi-squared =         0.7495 for     55 degrees of freedom 
# Null hypothesis probability =   9.158384e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.716e-08   9.965e-09
25- 50  2.496e-08   1.332e-08
50-150  4.494e-08   2.755e-08
15-150  8.707e-08   4.573e-08
Plot creation:
Mon Jun 25 18:54:48 EDT 2018