batgrbproduct Analysis for Trigger=687522

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Thu May 26 13:12:39 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/prebascript/trigger687522/GCN5_download_cron
======================================================================

  Trigger: 00687522      Segment: 000

  BAT Trigger Time: 485861123.968   [s; MET]
      Trigger Stop: 485861124.48   [s; MET]
               UTC: 2016-05-25T09:25:07.649260    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 149.442925515661   Dec: 51.1802165201058  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    6.55
     Image Trigger?:     NO
     Rate S/N Ratio:     11.3578166916005  [ if not an image trigger ]
     Image S/N Ratio:    6.55

  Flight Position:   [ source = BAT ]
    RA: 149.442925515661   Dec: 51.1802165201058  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 149.438837636393   Dec: 51.1970242658892  [deg; J2000]  
        { 09h 57m 45.3s , +51d 11' 49.3" }
         +/- 2.19533239268675 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.17738534425654 [arcmin] (formal 1-sigma fit error)
    SNR: 9.89146979537961
 
  Angular difference between Flight and Ground position is 1.020114 arcmin
 
  Partial Coding Fraction: 0.8125    [ including projection effects ]

  Duration
     T90: 0.291999936103821 +/- 0.0456069787374054
        Measured from: 0.0280001163482666
                   to: 0.320000052452087     [s; relative to TRIGTIME]
     T50: 0.171999990940094 +/- 0.065115289853844
        Measured from: 0.080000102519989
                   to: 0.252000093460083     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.324000000953674     
                   to: 0.675999999046326     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0160000324249268     
                   to: 0.332000017166138     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.023278   0.022391   0.016070   0.011759
           0.004327   0.004319   0.003737   0.002997 [error]
 Peak      0.033062   0.037371   0.033154   0.014749
           0.006811   0.007418   0.006308   0.005262 [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 6.29e-09 9.15e-09 9.92e-09 2.01e-08 3.15e-08 4.54e-08   erg/cm2
              Error 1.78e-09 1.90e-09 3.19e-09 1.27e-08 7.66e-09 1.63e-08   erg/cm2
Peak flux Power-law 2.84e-01 2.95e-01 2.17e-01 2.57e-01 8.95e-01 1.05e+00   ph/cm2/s
              Error 9.19e-02 5.95e-02 5.08e-02 1.25e-01 1.70e-01 2.00e-01   ph/cm2/s
 
Fluence   Cutoff-PL 5.70e-09 1.08e-08 9.54e-09 3.41e-09 2.86e-08 2.95e-08   erg/cm2
              Error 2.02e-09 2.77e-09 4.03e-09 8.70e-09 7.88e-09 1.60e-08   erg/cm2
Peak flux Cutoff-PL 2.85e-01 2.96e-01 2.17e-01 2.54e-01 8.96e-01 1.05e+00   ph/cm2/s
              Error 7.37e-02 6.46e-02 5.35e-02 1.70e-01 1.69e-01 2.35e-01   ph/cm2/s
 
Fluence        Band 5.65e-09 1.08e-08 9.49e-09 4.51e-09 2.86e-08 3.09e-08   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    1.884    0.350    -      -           1.09e-02 2.65e-03   47.300 57
CPL   0.600    1.834      45.7  -14.1      6.02e-02 5.83e-01   45.200 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.443    0.325    -      -           7.28e-03 1.38e-03   49.670 57
CPL   1.440    1.527    10000.0    0.0      7.30e-03 -2.96e-03   49.680 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: 0.640000 sec.
T50 in the 50-300 keV band: 0.384000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    0.316    0.016    0.332
T90     0.292    0.028    0.320
T50     0.172    0.080    0.252
Peak    1.000   -0.324    0.676

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  149.4388 +51.1970 0.0194   27.8  172.7       0.0776     9.9  TRIG_00687522       
------------------------------------------
 
Foreground time interval of the image:
  0.016   0.332 (delta_t =   0.316 [sec])
Background time interval of the image:
-239.968   0.016 (delta_t = 239.984 [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    0.016 sec. to    0.332 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.88424     ( -0.335731   0.364053 )
Norm@50keV  : 1.08590E-02    ( -0.00269415   0.00261106 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.30 using 59 PHA bins.
# Reduced chi-squared =         0.8298 for     57 degrees of freedom 
# Null hypothesis probability =   8.166604e-01
 
Photon flux (15-150 keV)    in 0.316 sec: 1.54805 ( -0.320938  0.321029 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.15459e-08 ( -7.54567e-09  7.77445e-09 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    0.016 sec. to    0.332 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.599738     ( -2.1897   1.47877 )
Epeak [keV] : 45.7368      ( -17.5996 -45.7345 )
Norm@50keV  : 6.01551E-02    ( -0.0601979   1.10671 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.20 using 59 PHA bins.
# Reduced chi-squared =         0.8071 for     56 degrees of freedom 
# Null hypothesis probability =   8.486407e-01
 
Photon flux (15-150 keV)    in 0.316 sec: 1.50767 ( -0.32362  0.32428 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.86122e-08 ( -7.40056e-09  8.35668e-09 ) ergs/cm2
 
Band function
Time interval is from    0.016 sec. to    0.332 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.523549   ( -0.690879   -0.690879 )
beta        : -4.47458    ( 4.3006   5.90822 )
Epeak [keV] : 45.6652      ( -45.6643 156.599 )
Norm@50keV   : 6.62978E-02    ( -0.0661015   1077.73 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.20 using 59 PHA bins.
# Reduced chi-squared =         0.8217 for     55 degrees of freedom 
# Null hypothesis probability =   8.244343e-01
 
Photon flux (15-150 keV)    in 0.316 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.86364e-08 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 10.7831  (-2.22212  2.79745)
R^2/D10^2   : 0.579633  (-0.340379   0.801117)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.90 using 59 PHA bins.
# Reduced chi-squared =         0.8404 for     57 degrees of freedom 
# Null hypothesis probability =   7.992475e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.431e-09   1.851e-09
25- 50  1.221e-08   4.110e-09
50-150  7.895e-09   3.900e-09
15-150  2.454e-08   9.166e-09
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 76.7897       (-33.929      98.4841)
Norm        : 7.52331       (-2.15798     2.71448)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.71 using 59 PHA bins.
# Reduced chi-squared =         0.8020 for     57 degrees of freedom 
# Null hypothesis probability =   8.582550e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.151e-09   1.871e-09
25- 50  1.002e-08   3.433e-09
50-150  1.376e-08   1.062e-08
15-150  2.994e-08   1.109e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.72150        (-4.18313      -5.7215)
R1^2/D10^2  : 3.32009        (-3.16158      1748.46)
kT2 [keV]   : 15.8493        (-14.3056      -15.8493)
R2^2/D10^2  : 9.79899E-02    (-0.0979756   0.582368)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.98 using 59 PHA bins.
# Reduced chi-squared =         0.8178 for     55 degrees of freedom 
# Null hypothesis probability =   8.303856e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.860e-09   3.433e-09
25- 50  1.054e-08   5.393e-09
50-150  1.205e-08   7.401e-09
15-150  2.845e-08   1.457e-08

Peak spectrum fit

Power-law model
Time interval is from   -0.324 sec. to    0.676 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44311     ( -0.325205   0.325785 )
Norm@50keV  : 7.27775E-03    ( -0.00138192   0.00137013 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.67 using 59 PHA bins.
# Reduced chi-squared =         0.8715 for     57 degrees of freedom 
# Null hypothesis probability =   7.436883e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.895359 ( -0.169381  0.169726 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.97318e-08 ( -1.44713e-08  1.46648e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -0.324 sec. to    0.676 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.44039     ( -1.28159   1.77164 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 7.30217E-03    ( -0.00139053   -0.00730227 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.68 using 59 PHA bins.
# Reduced chi-squared =         0.8871 for     56 degrees of freedom 
# Null hypothesis probability =   7.116072e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.895670 ( -0.170354  0.16851 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.94204e-08 ( -1.4949e-08  1.49532e-08 ) ergs/cm2
 
Band function
Time interval is from   -0.324 sec. to    0.676 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.71343   ( -4.71343   -4.71343 )
beta        : -1.48216    ( -0.367742   0.343506 )
Epeak [keV] : 21.9052      ( -21.9052 25.782 )
Norm@50keV   : 984.271    ( -181.85   4.4117e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.48 using 59 PHA bins.
# Reduced chi-squared =         0.8997 for     55 degrees of freedom 
# Null hypothesis probability =   6.845573e-01
 
Photon flux (15-150 keV)    in 1 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]    : 15.5139  (-3.7441  5.18582)
R^2/D10^2   : 9.03929E-02  (-0.0564385   0.146339)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.98 using 59 PHA bins.
# Reduced chi-squared =          1.035 for     57 degrees of freedom 
# Null hypothesis probability =   4.029313e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.528e-09   1.686e-09
25- 50  1.855e-08   5.880e-09
50-150  3.082e-08   1.199e-08
15-150  5.389e-08   1.779e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-94.6915      -199.363)
Norm        : 3.68723       (-0.684039     0.685245)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.24 using 59 PHA bins.
# Reduced chi-squared =         0.8815 for     57 degrees of freedom 
# Null hypothesis probability =   7.246061e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.182e-09   5.405e-09
25- 50  1.766e-08   1.017e-08
50-150  3.874e-08   2.194e-08
15-150  6.558e-08   3.711e-08
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.10727        (-3.49921      5.5289)
R1^2/D10^2  : 0.929676        (-0.761248      11.2664)
kT2 [keV]   : 30.6430        (-12.8011      -30.7378)
R2^2/D10^2  : 7.12934E-03    (-0.0069729   0.017643)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          49.87 using 59 PHA bins.
# Reduced chi-squared =         0.9068 for     55 degrees of freedom 
# Null hypothesis probability =   6.702541e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.696e-09   5.105e-09
25- 50  1.724e-08   9.225e-09
50-150  4.419e-08   2.611e-08
15-150  7.012e-08   3.658e-08
Plot creation:
Thu May 26 13:17:26 EDT 2016