batgrbproduct Analysis for Trigger=601051
Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done of the amount of data for this trigger downloaded to date.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
- 4) This page will be updated for up to 10 downlinks after the trigger.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time (local time): Sun Jun 8 22:33:34 EDT 2014
Host Name: bat1
Current Working Dir: /local/data/bat1/prebascript/trigger601051/batgroup_hand_proc
======================================================================
Trigger: 00601051 Segment: 000
BAT Trigger Time: 423854024 [s; MET]
Trigger Stop: 423854088 [s; MET]
UTC: 2014-06-07T17:13:31.890280 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 86.3799003443427 Dec: 18.9168424555503 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.87
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 7.87
Flight Position: [ source = BAT ]
RA: 86.3799003443427 Dec: 18.9168424555503 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 86.3729367301437 Dec: 18.9043001736435 [deg; J2000]
{ 05h 45m 29.5s , +18d 54' 15.5" }
+/- 1.91222551414683 [arcmin] (estimated 90% radius based on SNR)
+/- 1.13541991707231 [arcmin] (formal 1-sigma fit error)
SNR: 12.0481302376579
Angular difference between Flight and Ground position is 0.850027 arcmin
Partial Coding Fraction: 0.1601562 [ including projection effects ]
Duration
T90: 109.903999984264 +/- 18.4747438420471
Measured from: -13.9599999785423
to: 95.944000005722 [s; relative to TRIGTIME]
T50: 50.7200000286102 +/- 17.3923771830388
Measured from: 14.3600000143051
to: 65.0800000429153 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 31.5799999833107
to: 32.5799999833107 [s; relative to TRIGTIME]
Total Fluence
Measured from: -17.7039999961853
to: 103.800000011921 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 1.197025 1.484381 0.889631 0.299835
0.161969 0.163859 0.144948 0.128186 [error]
Peak 0.046267 0.043635 0.024022 0.024170
0.015397 0.014810 0.013286 0.011333 [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 4.03e-07 6.25e-07 7.29e-07 1.64e-06 2.24e-06 3.40e-06 erg/cm2
Error 7.73e-08 7.84e-08 1.41e-07 6.50e-07 3.29e-07 7.84e-07 erg/cm2
Peak flux Power-law 3.39e-01 3.10e-01 1.96e-01 1.90e-01 9.24e-01 1.04e+00 ph/cm2/s
Error 2.37e-01 1.34e-01 1.48e-01 2.52e-01 3.77e-01 4.00e-01 ph/cm2/s
Fluence Cutoff-PL 4.01e-07 6.30e-07 7.30e-07 1.49e-06 2.23e-06 3.26e-06 erg/cm2
Error 8.17e-08 9.32e-08 1.44e-07 1.19e-06 3.48e-07 1.08e-06 erg/cm2
Peak flux Cutoff-PL 3.44e-01 3.11e-01 1.95e-01 9.27e-01 1.03e+00 0.00e+00 ph/cm2/s
Error 2.33e-01 1.34e-01 3.74e-01 3.99e-01 0.00e+00 0.00e+00 ph/cm2/s
Fluence Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 erg/cm2
Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 erg/cm2
Peak flux Band 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 ph/cm2/s
Error 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 0.00e+00 ph/cm2/s
=== Time-averaged spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.778 0.228 - - 2.00e-03 2.85e-04 43.120 57
CPL 1.723 0.859 192.4 -12.0 2.15e-03 0.00e+00 43.110 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.659 0.837 - - 7.06e-03 2.94e-03 55.810 57
CPL 2.609 1.019 202.7 -0.0 2.35e-03 0.00e+00 55.120 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 121.504 -17.704 103.800
T90 109.904 -13.960 95.944
T50 50.720 14.360 65.080
Peak 1.000 31.580 32.580
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
86.3729 +18.9043 0.0159 37.3 -85.2 4.4555 12.0 TRIG_00601051
------------------------------------------
Foreground time interval of the image:
-17.704 103.800 (delta_t = 121.504 [sec])
Background time interval of the image:
-239.000 -17.704 (delta_t = 221.296 [sec])
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) The mask-weighted light curves are using the flight position.
- 3) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 4) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
- 5) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
- 6) Time of each bin is in the middle of the bin.
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:
- 1) The fitting includes the systematic errors.
- 2) For long bursts, a spectral fit of the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
- 3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.
- 4) For short bursts (T90<1sec), the specrtum is also fit with Blackbody, OTTB, and Double Blackbody.
Time averaged spectrum fit using the pre-slew DRM
Power-law model
Time interval is from -17.704 sec. to 103.800 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.77803 ( -0.223487 0.232806 )
Norm@50keV : 2.00047E-03 ( -0.000288061 0.000281365 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.12 using 59 PHA bins.
# Reduced chi-squared = 0.7565 for 57 degrees of freedom
# Null hypothesis probability = 9.130419e-01
Photon flux (15-150 keV) in 121.5 sec: 0.273348 ( -0.0345051 0.0345365 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.23957e-06 ( -3.26642e-07 3.32118e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -17.704 sec. to 103.800 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.72307 ( -0.909684 0.807572 )
Epeak [keV] : 192.405 ( -216.497 -240.593 )
Norm@50keV : 2.14658E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.11 using 59 PHA bins.
# Reduced chi-squared = 0.7698 for 56 degrees of freedom
# Null hypothesis probability = 8.965588e-01
Photon flux (15-150 keV) in 121.5 sec: 0.272830 ( -0.035326 0.034887 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.22672e-06 ( -3.541e-07 3.42727e-07 ) ergs/cm2
Band function
Time interval is from -17.704 sec. to 103.800 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.94103 ( -4.94103 -4.94103 )
beta : -1.91637 ( -0.34267 0.268059 )
Epeak [keV] : 23.7926 ( -23.7926 4.80852 )
Norm@50keV : 340.174 ( -42.285 1.67835e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 41.29 using 59 PHA bins.
# Reduced chi-squared = 0.7508 for 55 degrees of freedom
# Null hypothesis probability = 9.145808e-01
Photon flux (15-150 keV) in 121.5 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] : 10.7747 (-1.77925 2.2152)
R^2/D10^2 : 9.60257E-02 (-0.0478974 0.0925479)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 62.11 using 59 PHA bins.
# Reduced chi-squared = 1.090 for 57 degrees of freedom
# Null hypothesis probability = 2.990217e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.818e-07 7.035e-08
25- 50 7.756e-07 1.518e-07
50-150 5.004e-07 1.621e-07
15-150 1.558e-06 2.773e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 99.9793 (-34.6648 -100.505)
Norm : 1.20829 (-0.202595 0.230972)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.82 using 59 PHA bins.
# Reduced chi-squared = 0.7688 for 57 degrees of freedom
# Null hypothesis probability = 8.998845e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.837e-07 6.792e-08
25- 50 6.635e-07 1.061e-07
50-150 1.075e-06 5.242e-07
15-150 2.122e-06 6.014e-07
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.47785 (-1.74109 2.05624)
R1^2/D10^2 : 0.482581 (-0.240923 0.462882)
kT2 [keV] : 26.8679 (-11.1062 44.014)
R2^2/D10^2 : 2.28721E-03 (-0.00138317 0.00521546)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 41.14 using 59 PHA bins.
# Reduced chi-squared = 0.7480 for 55 degrees of freedom
# Null hypothesis probability = 9.173286e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.956e-07 2.244e-07
25- 50 6.215e-07 3.405e-07
50-150 1.092e-06 6.442e-07
15-150 2.109e-06 1.176e-06
Peak spectrum fit
Power-law model
Time interval is from 31.580 sec. to 32.580 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.65937 ( -0.835793 0.839093 )
Norm@50keV : 7.05745E-03 ( -0.0030602 0.00281579 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.81 using 59 PHA bins.
# Reduced chi-squared = 0.9792 for 57 degrees of freedom
# Null hypothesis probability = 5.197068e-01
Photon flux (15-150 keV) in 1 sec: 0.924443 ( -0.377406 0.37662 ) ph/cm2/s
Energy fluence (15-150 keV) : 6.55714e-08 ( -2.79502e-08 2.83787e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 31.580 sec. to 32.580 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.60920 ( -1.22932 0.808403 )
Epeak [keV] : 202.714 ( -9999.35 -9999.36 )
Norm@50keV : 2.35158E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.12 using 59 PHA bins.
# Reduced chi-squared = 0.9843 for 56 degrees of freedom
# Null hypothesis probability = 5.080536e-01
Photon flux (15-150 keV) in 1 sec: 0.927263 ( -0.374933 0.373407 ) ph/cm2/s
Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Band function
Time interval is from 31.580 sec. to 32.580 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.34601 ( 1.34606 1.34606 )
beta : -1.65950 ( 1.65961 0.836158 )
Epeak [keV] : 18.7228 ( -18.7129 -18.7129 )
Norm@50keV : 1.65437E-02 ( -0.0165467 0.344157 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.81 using 59 PHA bins.
# Reduced chi-squared = 1.015 for 55 degrees of freedom
# Null hypothesis probability = 4.440867e-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] : 8.08786 (-2.89045 29.4031)
R^2/D10^2 : 0.942538 (-0.942588 4.61385)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 59.79 using 59 PHA bins.
# Reduced chi-squared = 1.049 for 57 degrees of freedom
# Null hypothesis probability = 3.748494e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.124e-08 7.205e-09
25- 50 2.004e-08 1.292e-08
50-150 5.455e-09 4.961e-09
15-150 3.674e-08 2.414e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 199.166 (-199.278 -199.278)
Norm : 3.64206 (-1.43176 3.19433)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.36 using 59 PHA bins.
# Reduced chi-squared = 0.9887 for 57 degrees of freedom
# Null hypothesis probability = 4.991379e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 9.070e-09 5.930e-09
25- 50 1.745e-08 1.139e-08
50-150 3.825e-08 2.447e-08
15-150 6.476e-08 4.074e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 6.84896 (-2.76196 3.6688)
R1^2/D10^2 : 1.61704 (-1.35572 11.9993)
kT2 [keV] : 99.7995 (-77.1806 -99.8835)
R2^2/D10^2 : 4.30778E-04 (-0.000372665 0.00293878)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.17 using 59 PHA bins.
# Reduced chi-squared = 0.9668 for 55 degrees of freedom
# Null hypothesis probability = 5.447091e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.217e-08 7.425e-09
25- 50 1.773e-08 1.077e-08
50-150 4.374e-08 2.807e-08
15-150 7.364e-08 3.806e-08
Plot creation:
Mon Jun 9 14:37:17 EDT 2014