batgrbproduct Analysis for Trigger=565263
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 4 05:28:07 EDT 2013
Host Name: gcn5
Current Working Dir: /local/data/raid16/prebascript_archive/trigger565263/GCN5_download_cron
======================================================================
Trigger: 00565263 Segment: 000
BAT Trigger Time: 397216983.36 [s; MET]
Trigger Stop: 397216983.872 [s; MET]
UTC: 2013-08-03T10:02:52.493300 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 220.240765275184 Dec: -2.46718097566164 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.49
Image Trigger?: NO
Rate S/N Ratio: 12.5299640861417 [ if not an image trigger ]
Image S/N Ratio: 7.49
Flight Position: [ source = BAT ]
RA: 220.240765275184 Dec: -2.46718097566164 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 220.254780039491 Dec: -2.49695364601074 [deg; J2000]
{ 14h 41m 01.1s , -02d 29' 49.0" }
+/- 1.05386010395128 [arcmin] (estimated 90% radius based on SNR)
+/- 0.197482884898434 [arcmin] (formal 1-sigma fit error)
SNR: 28.2209278857782
Angular difference between Flight and Ground position is 1.974043 arcmin
Partial Coding Fraction: 0.3046875 [ including projection effects ]
Duration
T90: 43.5839999318123 +/- 1.6066362600737
Measured from: 0.680000126361847
to: 44.2640000581741 [s; relative to TRIGTIME]
T50: 3.40799999237061 +/- 1.24972315358162
Measured from: 2.09600007534027
to: 5.50400006771088 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.08399999141693
to: 3.08399999141693 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0.139999985694885
to: 45.7599999904633 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.559540 0.838719 0.578363 0.181692
0.058677 0.059205 0.051207 0.042544 [error]
Peak 0.098826 0.215703 0.196835 0.051869
0.012311 0.014234 0.013529 0.009814 [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 2.31e-07 3.81e-07 4.76e-07 1.18e-06 1.42e-06 2.27e-06 erg/cm2
Error 3.23e-08 3.27e-08 5.06e-08 2.68e-07 1.23e-07 3.07e-07 erg/cm2
Peak flux Power-law 1.47e+00 1.63e+00 1.29e+00 1.69e+00 5.03e+00 6.10e+00 ph/cm2/s
Error 1.95e-01 1.37e-01 1.06e-01 2.77e-01 3.85e-01 4.48e-01 ph/cm2/s
Fluence Cutoff-PL 2.10e-07 4.00e-07 4.94e-07 5.95e-07 1.38e-06 1.70e-06 erg/cm2
Error 3.97e-08 4.04e-08 5.67e-08 4.90e-07 1.35e-07 5.15e-07 erg/cm2
Peak flux Cutoff-PL 1.15e+00 1.78e+00 1.46e+00 6.77e-01 4.85e+00 5.07e+00 ph/cm2/s
Error 2.36e-01 1.66e-01 1.38e-01 3.00e-01 3.94e-01 4.88e-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 1.677 0.142 - - 3.36e-03 2.78e-04 48.110 57
CPL 1.154 0.639 82.1 -29.8 6.12e-03 4.73e-03 45.950 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 1.337 0.116 - - 4.19e-02 3.05e-03 56.670 57
CPL 0.200 0.614 85.4 23.9 1.45e-01 1.07e-01 43.710 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: 3.456000 sec.
T50 in the 50-300 keV band: 1.280000 sec.
=== Table of the duration information ==
Value tstart tstop
T100 45.620 0.140 45.760
T90 43.584 0.680 44.264
T50 3.408 2.096 5.504
Peak 1.000 2.084 3.084
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
220.2548 -2.4970 0.0068 48.4 -164.2 2.0099 28.2 TRIG_00565263
------------------------------------------
Foreground time interval of the image:
0.140 9.841 (delta_t = 9.701 [sec])
Background time interval of the image:
-176.859 0.140 (delta_t = 176.999 [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 0.140 sec. to 45.760 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.67746 ( -0.140575 0.142536 )
Norm@50keV : 3.35589E-03 ( -0.000278922 0.000277868 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 48.11 using 59 PHA bins.
# Reduced chi-squared = 0.8441 for 57 degrees of freedom
# Null hypothesis probability = 7.929432e-01
Photon flux (15-150 keV) in 45.62 sec: 0.442248 ( -0.0380171 0.0381598 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.42016e-06 ( -1.22671e-07 1.23166e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.140 sec. to 45.760 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.15385 ( -0.701764 0.575475 )
Epeak [keV] : 82.1129 ( -22.6163 -82.1196 )
Norm@50keV : 6.11684E-03 ( -0.00205065 0.00740352 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 45.95 using 59 PHA bins.
# Reduced chi-squared = 0.8205 for 56 degrees of freedom
# Null hypothesis probability = 8.287663e-01
Photon flux (15-150 keV) in 45.62 sec: 0.430745 ( -0.040174 0.040327 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.37663e-06 ( -1.35697e-07 1.34232e-07 ) ergs/cm2
Band function
Time interval is from 0.140 sec. to 45.760 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -0.683850 ( -0.940979 2.55013 )
beta : -1.99389 ( 1.9967 0.333125 )
Epeak [keV] : 58.3485 ( -23.1373 205.183 )
Norm@50keV : 1.15264E-02 ( -0.00778114 0.446806 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 44.79 using 59 PHA bins.
# Reduced chi-squared = 0.8143 for 55 degrees of freedom
# Null hypothesis probability = 8.356490e-01
Photon flux (15-150 keV) in 45.62 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] : 13.8271 (-1.26395 1.41984)
R^2/D10^2 : 6.49291E-02 (-0.0197778 0.0276652)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 71.03 using 59 PHA bins.
# Reduced chi-squared = 1.246 for 57 degrees of freedom
# Null hypothesis probability = 1.001240e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.198e-07 1.800e-08
25- 50 4.399e-07 4.806e-08
50-150 5.502e-07 8.335e-08
15-150 1.110e-06 1.102e-07
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 149.920 (-45.8667 -148.968)
Norm : 1.81804 (-0.171927 0.217289)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 46.04 using 59 PHA bins.
# Reduced chi-squared = 0.8077 for 57 degrees of freedom
# Null hypothesis probability = 8.501985e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.130e-07 2.404e-08
25- 50 3.948e-07 5.963e-08
50-150 7.792e-07 3.238e-07
15-150 1.387e-06 4.218e-07
Double BB
R1^2/D10^2 : 0.184289 ( )
kT2 [keV] : 37.3052 (-15.2384 -38.1343)
R2^2/D10^2 : 1.15193E-03 (-0.0010512 0.0059984)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 55.69 using 59 PHA bins.
#Fit statistic : Chi-Squared = 48.59 using 59 PHA bins.
#Fit statistic : Chi-Squared = 45.89 using 59 PHA bins.
# Reduced chi-squared = 1.012 for 55 degrees of freedom
# Reduced chi-squared = 0.8835 for 55 degrees of freedom
# Reduced chi-squared = 0.8343 for 55 degrees of freedom
# Null hypothesis probability = 4.487739e-01
# Null hypothesis probability = 7.164563e-01
# Null hypothesis probability = 8.043926e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.082e-07 7.130e-08
25- 50 3.911e-07 6.111e-08
50-150 6.223e-07 9.717e-08
15-150 1.222e-06 1.706e-07
Peak spectrum fit
Power-law model
Time interval is from 2.084 sec. to 3.084 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.33658 ( -0.115714 0.115303 )
Norm@50keV : 4.18772E-02 ( -0.00304681 0.0030468 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 56.67 using 59 PHA bins.
# Reduced chi-squared = 0.9942 for 57 degrees of freedom
# Null hypothesis probability = 4.874859e-01
Photon flux (15-150 keV) in 1 sec: 5.03129 ( -0.38421 0.385074 ) ph/cm2/s
Energy fluence (15-150 keV) : 4.10253e-07 ( -3.16499e-08 3.17223e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 2.084 sec. to 3.084 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 0.200455 ( -0.658338 0.570181 )
Epeak [keV] : 85.3839 ( -14.2053 33.5307 )
Norm@50keV : 0.145025 ( -0.0662072 0.14742 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 43.71 using 59 PHA bins.
# Reduced chi-squared = 0.7805 for 56 degrees of freedom
# Null hypothesis probability = 8.839267e-01
Photon flux (15-150 keV) in 1 sec: 4.85339 ( -0.39355 0.39443 ) ph/cm2/s
Energy fluence (15-150 keV) : 3.92398e-07 ( -3.4199e-08 3.3948e-08 ) ergs/cm2
Band function
Time interval is from 2.084 sec. to 3.084 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 0.538597 ( -0.981934 3.99642 )
beta : -1.94169 ( -1.0243 0.385653 )
Epeak [keV] : 64.1493 ( -21.2555 27.8478 )
Norm@50keV : 0.380602 ( -0.443132 111.362 )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.82 using 59 PHA bins.
# Reduced chi-squared = 0.7423 for 55 degrees of freedom
# Null hypothesis probability = 9.227741e-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] : 17.0584 (-1.3132 1.45755)
R^2/D10^2 : 0.403880 (-0.101264 0.130703)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 58.30 using 59 PHA bins.
# Reduced chi-squared = 1.023 for 57 degrees of freedom
# Null hypothesis probability = 4.273484e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 2.391e-08 3.370e-09
25- 50 1.061e-07 9.645e-09
50-150 2.207e-07 2.725e-08
15-150 3.507e-07 3.210e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 200.000 ( )
Norm : 21.2474 (-1.55326 1.55306)
------------------------------------------------------------
#Fit statistic : Chi-Squared = 61.26 using 59 PHA bins.
# Reduced chi-squared = 1.075 for 57 degrees of freedom
# Null hypothesis probability = 3.256383e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 5.292e-08 4.715e-09
25- 50 1.018e-07 8.650e-09
50-150 2.233e-07 5.965e-08
15-150 3.780e-07 6.815e-08
Double BB
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 12.5710 (-3.07421 2.75022)
R1^2/D10^2 : 0.872551 (-0.357365 0.785948)
kT2 [keV] : 46.9855 (-21.2664 -46.1112)
R2^2/D10^2 : 7.62745E-03 ( )
------------------------------------------------------------
#Fit statistic : Chi-Squared = 40.43 using 59 PHA bins.
#Fit statistic : Chi-Squared = 40.41 using 59 PHA bins.
# Reduced chi-squared = 0.7352 for 55 degrees of freedom
# Reduced chi-squared = 0.7348 for 55 degrees of freedom
# Null hypothesis probability = 9.291657e-01
# Null hypothesis probability = 9.295086e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 3.143e-08 8.930e-09
25- 50 1.106e-07 3.203e-08
50-150 2.531e-07 1.165e-07
15-150 3.951e-07 1.470e-07
Plot creation:
Sun Aug 4 05:56:07 EDT 2013