batgrbproduct Analysis for Trigger=567383
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 Aug 25 18:56:01 EDT 2013
Host Name: gcn5
Current Working Dir: /local/data/raid16/prebascript_archive/trigger567383/GCN5_download_cron
======================================================================
Trigger: 00567383 Segment: 000
BAT Trigger Time: 399079272 [s; MET]
Trigger Stop: 399079656 [s; MET]
UTC: 2013-08-24T23:21:01.049380 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 288.805162671347 Dec: 10.9564148833035 [deg; J2000]
Catalogged Source?: YES
Point Source?: YES
GRB Indicated?: NO [ by BAT flight software ]
Image S/N Ratio: 10.98
Image Trigger?: YES
Rate S/N Ratio: 0 [ if not an image trigger ]
Image S/N Ratio: 10.98
Flight Position: [ source = BAT ]
RA: 288.805162671347 Dec: 10.9564148833035 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 288.828159845548 Dec: 11.1470306403423 [deg; J2000]
{ 19h 15m 18.8s , +11d 08' 49.3" }
+/- nan [arcmin] (estimated 90% radius based on SNR)
+/- 4.38069956607763 [arcmin] (formal 1-sigma fit error)
SNR: -2.31548001074959
Angular difference between Flight and Ground position is 11.516844 arcmin
Partial Coding Fraction: 0.2695312 [ including projection effects ]
Duration
T90: 157.007999956608 +/- 187.831250641427
Measured from: -84.6599999070168
to: 72.3480000495911 [s; relative to TRIGTIME]
T50: 97.4559999704361 +/- 229.378053183368
Measured from: -60.9399998784065
to: 36.5160000920296 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 211.903999984264
to: 212.903999984264 [s; relative to TRIGTIME]
Total Fluence
Measured from: -85.8719999790192
to: 250.115999996662 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 2.052763 1.448472 0.179152 -0.286352
0.191958 0.193860 0.168486 0.156473 [error]
Peak 0.029220 0.022267 0.025155 0.009063
0.010688 0.010586 0.009367 0.008180 [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 7.88e-07 5.79e-07 2.83e-07 1.96e-07 1.74e-06 1.85e-06 erg/cm2
Error 1.23e-07 1.12e-07 1.16e-07 1.47e-07 3.00e-07 3.71e-07 erg/cm2
Peak flux Power-law 3.12e-01 2.31e-01 1.14e-01 8.00e-02 6.94e-01 7.37e-01 ph/cm2/s
Error 1.79e-01 9.19e-02 7.65e-02 1.21e-01 2.75e-01 2.94e-01 ph/cm2/s
Fluence Cutoff-PL 7.70e-07 6.38e-07 1.55e-07 7.65e-09 1.57e-06 1.57e-06 erg/cm2
Error 1.31e-07 1.39e-07 1.71e-07 1.22e-07 2.98e-07 3.36e-07 erg/cm2
Peak flux Cutoff-PL 3.18e-01 2.31e-01 1.12e-01 7.64e-02 6.95e-01 7.36e-01 ph/cm2/s
Error 1.78e-01 1.01e-01 9.44e-02 1.16e-01 2.75e-01 2.92e-01 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 3.035 0.371 - - 4.25e-04 1.31e-04 78.930 57
CPL 1.313 0.000 12.0 0.0 6.55e-03 0.00e+00 76.540 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 2.020 0.865 - - 4.59e-03 3.43e-03 53.090 57
CPL 2.079 0.000 41.5 0.0 4.14e-03 0.00e+00 53.050 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 335.988 -85.872 250.116
T90 157.008 -84.660 72.348
T50 97.456 -60.940 36.516
Peak 1.000 211.904 212.904
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
288.8282 +11.1470 0.0832 39.0 144.6 -2.2445 -2.3 TRIG_00567383
------------------------------------------
Foreground time interval of the image:
-85.872 250.116 (delta_t = 335.988 [sec])
Background time interval of the image:
-140.699 -85.872 (delta_t = 54.827 [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 -85.872 sec. to 250.116 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 3.03463 ( -0.342894 0.398978 )
Norm@50keV : 4.24753E-04 ( -0.000127244 0.000134572 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 78.93 using 59 PHA bins.
# Reduced chi-squared = 1.385 for 57 degrees of freedom
# Null hypothesis probability = 2.883002e-02
Photon flux (15-150 keV) in 336 sec: 0.119800 ( -0.0162717 0.0162784 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.74262e-06 ( -2.91712e-07 3.08781e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -85.872 sec. to 250.116 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.31311 ( )
Epeak [keV] : 12.0443 ( )
Norm@50keV : 6.54792E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.54 using 59 PHA bins.
# Reduced chi-squared = 1.367 for 56 degrees of freedom
# Null hypothesis probability = 3.550255e-02
Photon flux (15-150 keV) in 336 sec: 0.115993 ( -0.0164047 0.016534 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.57045e-06 ( -2.66015e-07 3.30822e-07 ) ergs/cm2
Band function
Time interval is from -85.872 sec. to 250.116 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -1.37305 ( 1.37305 1.37305 )
beta : -9.37167 ( 9.37167 19.3714 )
Epeak [keV] : 11.4761 ( -3.45103 11.7444 )
Norm@50keV : 5.89483E-03 ( -0.00589874 1.04592e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.54 using 59 PHA bins.
# Reduced chi-squared = 1.392 for 55 degrees of freedom
# Null hypothesis probability = 2.897645e-02
Photon flux (15-150 keV) in 336 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] : 5.67359 (-0.786507 0.888607)
R^2/D10^2 : 0.553537 (-0.265472 0.546056)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 79.27 using 59 PHA bins.
# Reduced chi-squared = 1.391 for 57 degrees of freedom
# Null hypothesis probability = 2.718772e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.308e-07 1.804e-07
25- 50 6.436e-07 1.856e-07
50-150 4.659e-08 2.855e-08
15-150 1.421e-06 3.473e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 18.5760 (-4.72776 6.70338)
Norm : 1.57911 (-0.493807 0.813001)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 76.55 using 59 PHA bins.
# Reduced chi-squared = 1.343 for 57 degrees of freedom
# Null hypothesis probability = 4.302778e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.709e-07 1.512e-07
25- 50 6.365e-07 1.494e-07
50-150 1.679e-07 9.957e-08
15-150 1.575e-06 2.942e-07
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 1.46993 (-1.38447 3.48173)
R1^2/D10^2 : 944.839 ( )
kT2 [keV] : 6.37298 (-1.04324 6.29686)
R2^2/D10^2 : 0.302374 (-0.309611 0.154275)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 75.05 using 59 PHA bins.
#Fit statistic : Chi-Squared = 74.96 using 59 PHA bins.
# Reduced chi-squared = 1.364 for 55 degrees of freedom
# Reduced chi-squared = 1.363 for 55 degrees of freedom
# Null hypothesis probability = 3.749127e-02
# Null hypothesis probability = 3.803480e-02
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 7.401e-07 3.620e-07
25- 50 6.757e-07 3.888e-07
50-150 8.257e-08 5.821e-08
15-150 1.498e-06 7.647e-07
Peak spectrum fit
Power-law model
Time interval is from 211.904 sec. to 212.904 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.02003 ( -0.785218 0.944581 )
Norm@50keV : 4.58582E-03 ( -0.00458581 0.00226836 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.09 using 59 PHA bins.
# Reduced chi-squared = 0.9315 for 57 degrees of freedom
# Null hypothesis probability = 6.223484e-01
Photon flux (15-150 keV) in 1 sec: 0.694285 ( -0.2752 0.275484 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.2338e-08 ( -1.96752e-08 2.12252e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 211.904 sec. to 212.904 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.07855 ( )
Epeak [keV] : 41.4885 ( )
Norm@50keV : 4.14240E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.05 using 59 PHA bins.
# Reduced chi-squared = 0.9473 for 56 degrees of freedom
# Null hypothesis probability = 5.873788e-01
Photon flux (15-150 keV) in 1 sec: 0.694925 ( -0.275268 0.274875 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.18416e-08 ( -4.18416e-08 2.13146e-08 ) ergs/cm2
Band function
Time interval is from 211.904 sec. to 212.904 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.89347 ( -4.89347 -4.89347 )
beta : -2.33093 ( 2.33093 1.00337 )
Epeak [keV] : 23.4939 ( -23.4939 72.392 )
Norm@50keV : 1018.05 ( -398.228 1.46743e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 52.71 using 59 PHA bins.
# Reduced chi-squared = 0.9584 for 55 degrees of freedom
# Null hypothesis probability = 5.625938e-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] : 6.87214 (-2.45161 5.81806)
R^2/D10^2 : 1.37737 (-1.37735 7.61651)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.01 using 59 PHA bins.
# Reduced chi-squared = 0.9650 for 57 degrees of freedom
# Null hypothesis probability = 5.502514e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.025e-08 6.530e-09
25- 50 1.354e-08 9.505e-09
50-150 2.098e-09 2.092e-09
15-150 2.588e-08 1.721e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 63.2674 (-63.4084 -63.4084)
Norm : 3.50821 (-1.80999 6.22373)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 53.63 using 59 PHA bins.
# Reduced chi-squared = 0.9408 for 57 degrees of freedom
# Null hypothesis probability = 6.024574e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.888e-09 5.800e-09
25- 50 1.374e-08 8.890e-09
50-150 1.633e-08 1.386e-08
15-150 3.896e-08 2.872e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.80159 (-1.53369 3.78662)
R1^2/D10^2 : 2.49144 (-2.19075 20.1286)
kT2 [keV] : 46.2465 (-46.2459 -46.246)
R2^2/D10^2 : 1.23098E-03 (-0.00121947 0.0262371)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 51.61 using 59 PHA bins.
# Reduced chi-squared = 0.9383 for 55 degrees of freedom
# Null hypothesis probability = 6.051207e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.091e-08 6.665e-09
25- 50 1.198e-08 7.050e-09
50-150 2.522e-08 1.571e-08
15-150 4.810e-08 2.493e-08
Plot creation:
Sun Aug 25 19:21:05 EDT 2013