batgrbproduct analysis for trigger=848621

batgrbproduct Analysis for Trigger=848621

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu Jul 19 19:59:32 EDT 2018
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger848621/GCN5_download_cron
======================================================================

  Trigger: 00848621      Segment: 000

  BAT Trigger Time: 553643696   [s; MET]
      Trigger Stop: 553643760   [s; MET]
               UTC: 2018-07-18T21:54:34.714360    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 190.39528288158   Dec: 11.7980569737009  [deg; J2000]

     Catalogged Source?: YES
     Point Source?:      YES
     GRB Indicated?:     NO    [ by BAT flight software ]
     Image S/N Ratio:    5.86
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    5.86

  Flight Position:   [ source = BAT ]
    RA: 190.39528288158   Dec: 11.7980569737009  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 190.361904276193   Dec: 11.8047785294958  [deg; J2000]  
        { 12h 41m 26.9s , +11d 48' 17.2" }
         +/- 5.99551226331118 [arcmin] (estimated 90% radius based on SNR)
         +/- 5.58973432820364 [arcmin] (formal 1-sigma fit error)
    SNR: 2.35471287083981
 
  Angular difference between Flight and Ground position is 2.001437 arcmin
 
  Partial Coding Fraction: 0.7578125    [ 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     0.196976   0.172988  -0.051346  -0.064456
           0.060077   0.060251   0.053393   0.049066 [error]
 Peak      0.196976   0.172988  -0.051346  -0.064456
           0.060077   0.060251   0.053393   0.049066 [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 6.19e-08 4.88e-08 2.58e-08 1.97e-08 1.46e-07 1.51e-07   erg/cm2
              Error 2.82e-08 2.89e-08 3.05e-08 4.63e-08 8.17e-08 1.06e-07   erg/cm2
Peak flux Power-law 3.22e-02 1.41e-02 3.71e-03 1.20e-03 5.08e-02 5.12e-02   ph/cm2/s
              Error 1.49e-02 8.12e-03 4.33e-03 2.62e-03 2.26e-02 2.29e-02   ph/cm2/s
 
Fluence   Cutoff-PL 6.05e-08 6.92e-08 1.14e-08 9.12e-11 1.41e-07 1.41e-07   erg/cm2
              Error 3.19e-08 5.68e-08 2.48e-08 1.51e-08 6.68e-08 6.69e-08   erg/cm2
Peak flux Cutoff-PL 3.04e-02 2.04e-02 1.87e-03 8.71e-06 5.26e-02 5.28e-02   ph/cm2/s
              Error 2.36e-02 1.65e-02 3.69e-03 7.90e-04 2.17e-02 2.17e-02   ph/cm2/s
 
Fluence        Band 5.95e-08 7.00e-08 1.43e-08 2.37e-10 1.44e-07 1.41e-07   erg/cm2
              Error 3.12e-08 5.69e-08 -------- -------- -------- --------   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    2.949    1.067    -      -           1.91e-04 1.89e-04   65.650 57
CPL  -0.326    0.000      23.3    0.0      3.00e-02 0.00e+00   63.600 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.949    1.067    -      -           1.91e-04 1.89e-04   65.650 57
CPL  -0.326    0.000      23.3    0.0      3.00e-02 0.00e+00   63.600 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
  190.3619 +11.8048 0.0817   34.6  -11.0       0.2734     2.4  TRIG_00848621       
------------------------------------------
 
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: 2.94871     ( -0.812562   1.32066 )
Norm@50keV  : 1.91102E-04    ( -0.0001924   0.000184858 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.65 using 59 PHA bins.
# Reduced chi-squared =          1.152 for     57 degrees of freedom 
# Null hypothesis probability =   2.021685e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.07649E-02 ( -0.022478  0.0227838 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.45507e-07 ( -7.33933e-08  9.008e-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: -0.326441     (     )
Epeak [keV] : 23.2779      (   )
Norm@50keV  : 3.00138E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.60 using 59 PHA bins.
# Reduced chi-squared =          1.136 for     56 degrees of freedom 
# Null hypothesis probability =   2.266149e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.26369E-02 ( -0.0214996  0.0218238 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4148e-07 ( -6.27616e-08  7.08416e-08 ) 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       : 0.682025   ( -2.28564   -0.286611 )
beta        : -10.0000    ( 10   3.55271e-15 )
Epeak [keV] : 24.5494      ( -12.2934 12.3106 )
Norm@50keV   : 4.87781E-02    ( -0.0495729   104.181 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.58 using 59 PHA bins.
# Reduced chi-squared =          1.156 for     55 degrees of freedom 
# Null hypothesis probability =   2.000305e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.04479e-18 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 6.59651  (-2.41192  2.93052)
R^2/D10^2   : 0.140246  (-0.140247   0.860813)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.58 using 59 PHA bins.
# Reduced chi-squared =          1.115 for     57 degrees of freedom 
# Null hypothesis probability =   2.558412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.875e-08   3.549e-08
25- 50  7.151e-08   4.733e-08
50-150  9.513e-09   8.598e-09
15-150  1.398e-07   9.805e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.3808       (-11.453      28.0381)
Norm        : 0.607521       (-0.359027     1.18042)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.15 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     57 degrees of freedom 
# Null hypothesis probability =   2.402885e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.368e-08   3.914e-08
25- 50  5.863e-08   3.923e-08
50-150  1.960e-08   1.973e-08
15-150  1.419e-07   1.017e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.50101        (-3.41654      -3.41654)
R1^2/D10^2  : 0.633564        (-0.759198      -0.759198)
kT2 [keV]   : 7.48934        (-7.382      -7.382)
R2^2/D10^2  : 6.77544E-02    (-0.0760284   0.864947)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.48 using 59 PHA bins.
# Reduced chi-squared =          1.154 for     55 degrees of freedom 
# Null hypothesis probability =   2.024695e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.030e-08   4.320e-08
25- 50  6.937e-08   5.427e-08
50-150  1.366e-08   8.269e-09
15-150  1.433e-07   1.212e-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: 2.94871     ( -0.812562   1.32066 )
Norm@50keV  : 1.91102E-04    ( -0.0001924   0.000184858 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          65.65 using 59 PHA bins.
# Reduced chi-squared =          1.152 for     57 degrees of freedom 
# Null hypothesis probability =   2.021685e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.07649E-02 ( -0.022478  0.0227838 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.45507e-07 ( -7.33933e-08  9.008e-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: -0.326441     (     )
Epeak [keV] : 23.2779      (   )
Norm@50keV  : 3.00138E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.60 using 59 PHA bins.
# Reduced chi-squared =          1.136 for     56 degrees of freedom 
# Null hypothesis probability =   2.266149e-01
 
Photon flux (15-150 keV)    in 64 sec: 5.26369E-02 ( -0.0214996  0.0218238 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4148e-07 ( -6.27616e-08  7.08416e-08 ) 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       : 0.682025   ( -2.28212   -0.286611 )
beta        : -10.0000    ( 10   20 )
Epeak [keV] : 24.5494      ( -12.2934 12.3106 )
Norm@50keV   : 4.87781E-02    ( -0.0495729   104.181 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.58 using 59 PHA bins.
# Reduced chi-squared =          1.156 for     55 degrees of freedom 
# Null hypothesis probability =   2.000305e-01
 
Photon flux (15-150 keV)    in 64 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.04479e-18 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 6.59651  (-2.41192  2.93052)
R^2/D10^2   : 0.140246  (-0.140247   0.860813)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.58 using 59 PHA bins.
# Reduced chi-squared =          1.115 for     57 degrees of freedom 
# Null hypothesis probability =   2.558412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.875e-08   3.670e-08
25- 50  7.151e-08   4.790e-08
50-150  9.513e-09   8.637e-09
15-150  1.398e-07   8.614e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 21.3808       (-11.453      28.0381)
Norm        : 0.607521       (-0.359027     1.18042)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.15 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     57 degrees of freedom 
# Null hypothesis probability =   2.402885e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.368e-08   3.971e-08
25- 50  5.863e-08   3.962e-08
50-150  1.960e-08   1.838e-08
15-150  1.419e-07   9.485e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 3.50101        (-3.41654      -3.41654)
R1^2/D10^2  : 0.633564        (-0.759198      -0.759198)
kT2 [keV]   : 7.48934        (-7.382      -7.382)
R2^2/D10^2  : 6.77544E-02    (-0.0760284   0.864947)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.48 using 59 PHA bins.
# Reduced chi-squared =          1.154 for     55 degrees of freedom 
# Null hypothesis probability =   2.024695e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.030e-08   4.371e-08
25- 50  6.937e-08   3.818e-08
50-150  1.366e-08   1.136e-08
15-150  1.433e-07   9.974e-08
Plot creation:
Thu Jul 19 20:03:10 EDT 2018