batgrbproduct Analysis for Trigger=213190
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 page will be updated for up to 8 downlinks after the trigger.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.45
Process Start Time (local time): Wed Jul 29 10:31:55 EDT 2009
Host Name: gcn14
Current Working Dir: /net/raid16/BAT_GRB_process_2009/213190
======================================================================
Trigger: 00213190 Segment: 000
BAT Trigger Time: 170985275.136 [s; MET]
Trigger Stop: 170985276.16 [s; MET]
UTC: 2006-06-02T23:54:33.904120 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 267.379966382982 Dec: -28.1088244879662 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 8.34
Image Trigger?: NO
Rate S/N Ratio: 10.816653826392 [ if not an image trigger ]
Image S/N Ratio: 8.34
Flight Position: [ source = BAT ]
RA: 267.379966382982 Dec: -28.1088244879662 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 267.368781459967 Dec: -28.1156567044818 [deg; J2000]
{ 17h 49m 28.5s , -28d 06' 56.4" }
+/- 1.36308418567151 [arcmin] (estimated 90% radius based on SNR)
+/- 0.622855010655719 [arcmin] (formal 1-sigma fit error)
SNR: 19.5408352861906
Angular difference between Flight and Ground position is 0.720013 arcmin
Partial Coding Fraction: 1 [ including projection effects ]
Duration
T90: 9.05199998617172 +/- 1.05172619797741
Measured from: -0.555999994277954
to: 8.49599999189377 [s; relative to TRIGTIME]
T50: 4.43599998950958 +/- 0.642871682575158
Measured from: 1.95600000023842
to: 6.391999989748 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 5.25999999046326
to: 6.25999999046326 [s; relative to TRIGTIME]
Total Fluence
Measured from: -0.972000002861023
to: 9.00399997830391 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.539020 0.082017 0.035231 0.001157
0.020015 0.016517 0.014791 0.014903 [error]
Peak 0.074872 0.015227 0.010887 -0.000963
0.006561 0.005244 0.004770 0.004689 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
=== Fluence/Peak Flux Summary (tot_pha/preslew_drm) ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence Power-law 1.50e-07 3.69e-08 4.73e-09 6.79e-10 1.92e-07 1.93e-07 erg/cm2
Error 1.73e-08 8.79e-09 2.73e-09 7.04e-10 2.00e-08 2.00e-08 erg/cm2
Peak flux Power-law 6.90e-01 1.28e-01 1.15e-02 1.12e-03 8.30e-01 8.31e-01 ph/cm2/s
Error 1.25e-01 5.58e-02 1.24e-02 2.52e-03 1.44e-01 1.45e-01 ph/cm2/s
Fluence Cutoff-PL 1.50e-07 3.69e-08 4.72e-09 6.73e-10 1.92e-07 1.92e-07 erg/cm2
Error 1.73e-08 8.80e-09 2.73e-09 6.98e-10 2.00e-08 2.00e-08 erg/cm2
Peak flux Cutoff-PL 6.89e-01 1.28e-01 1.15e-02 1.11e-03 8.30e-01 8.30e-01 ph/cm2/s
Error 1.25e-01 5.58e-02 1.24e-02 2.50e-03 1.44e-01 1.45e-01 ph/cm2/s
Fluence Band 1.49e-07 3.65e-08 4.65e-09 6.53e-10 1.93e-07 1.92e-07 erg/cm2
Error 1.58e-08 5.85e-09 1.99e-08 1.98e-08 0.00e+00 0.00e+00 erg/cm2
Peak flux Band 6.89e-01 1.28e-01 1.15e-02 1.11e-03 8.30e-01 8.30e-01 ph/cm2/s
Error 1.25e-01 5.58e-02 1.24e-02 2.50e-03 1.44e-01 1.45e-01 ph/cm2/s
=== Time-averaged spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 4.965 0.486 - - 4.02e-04 1.83e-04 65.022 57
CPL 1.869 0.000 0.9 5.2 1.44e-01 1.60e+01 67.875 0
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 4.475 0.870 - - 8.79e-04 9.07e-04 69.253 57
CPL 1.793 2.303 1.5 5.5 1.58e-01 0.00e+00 71.547 0
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 9.976 -0.972 9.004
T90 9.052 -0.556 8.496
T50 4.436 1.956 6.392
Peak 1.000 5.260 6.260
Image
Pre-slew 15-350 keV image (Event data; bgd subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
267.3688 -28.1157 0.0099 1.2 168.2 0.6673 19.5 TRIG_00213190
------------------------------------------
Foreground time interval of the image:
170985274.164000 170985284.140000
Background time interval of the image:
170985056.500600 170985274.164000
Lightcurves
Notes:
- 1) All plots contain as much data as has been downloaded to date.
- 2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
- 3) 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.
- 4) 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.
- 5) 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
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
8 ms binning
From T100_start-3 s to T100_start+3 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
2 ms binning
From T100_start-1 s to T100_start+1 s
Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000
SN=5 or 10 sec. binning (whichever binning is satisfied first)
SN=5 or 10 sec. binning (T < 200 sec)
Flight mask-tagged light curves
Quad-rate summed light curves (from T0-300 to T0+1000)
Spectral Evolution
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 -0.972 sec. to 9.004 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.96537 ( -0.475216 0.497056 )
Norm@50keV : 4.022829E-04 ( -1.526934E-04 2.129853E-04) )
------------------------------------------------------------
Chi-Squared = 65.02242 using 59 PHA bins.
Reduced chi-squared = 1.140744 for 57 degrees of freedom
Null hypothesis probability = 0.218
Photon flux (15-150 keV) in 9.976 sec: 0.600549 ( -0.063191 0.063374 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92354e-07 ( -1.9968e-08 2.00139e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from -0.972 sec. to 9.004 sec.
Photon index: 1.86887 ( )
Epeak [keV] : 0.880487 ( -0.462929 9.83792 )
Norm@50keV : 0.144254 ( -6.523954E-02 32.0199 )
------------------------------------------------------------
Chi-Squared = 67.87502 using 59 PHA bins.
but latest trial 1.20774 gives Chi-Squared = 195.278
but latest trial -2.52497 gives Chi-Squared = 0.151848
but latest trial 10.2308 gives Chi-Squared = 18.8329
Reduced chi-squared = 1.212054 for 56 degrees of freedom
Null hypothesis probability = 0.133
Photon flux (15-150 keV) in 9.976 sec: 0.600010 ( -0.063117 0.063296 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92277e-07 ( -1.9959e-08 2.00158e-08 ) ergs/cm2
Band function
Time interval is from -0.972 sec. to 9.004 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.43092 ( -1.56908 6.55005 )
beta : -4.96388 ( -0.498966 0.473880 )
Epeak [keV] : 238.959 ( -238.859 9761.04 )
Norm@50keV : 5.474985E-02 ( -2.080422E-02 2.887402E-02) )
------------------------------------------------------------
Chi-Squared = 65.02241 using 59 PHA bins.
Reduced chi-squared = 1.182226 for 55 degrees of freedom
Null hypothesis probability = 0.167
Photon flux (15-150 keV) in 9.976 sec: 3.40993 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92679e-07 ( -1.99999e-08 1.97674e-08 ) ergs/cm2
Peak spectrum fit
Power-law model
Time interval is from 5.260 sec. to 6.260 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.47542 ( -0.795218 0.943869 )
Norm@50keV : 8.793232E-04 ( -8.793232E-04 9.349497E-04) )
------------------------------------------------------------
Chi-Squared = 69.25301 using 59 PHA bins.
Reduced chi-squared = 1.214965 for 57 degrees of freedom
Null hypothesis probability = 0.128
Photon flux (15-150 keV) in 1.000 sec: 0.830308 ( -0.144415 0.144496 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.79334e-08 ( -5.6938e-09 6.1433e-09 ) ergs/cm2
Cutoff power-law model
Time interval is from 5.260 sec. to 6.260 sec.
Parameters : value lower 90% higher 90%
Photon index: 1.79312 ( -1.28718 3.31899 )
Epeak [keV] : 1.54816 ( -1.53816 9.54676 )
Norm@50keV : 0.157678 ( )
------------------------------------------------------------
Chi-Squared = 71.54704 using 59 PHA bins.
but latest trial 0.522449 gives Chi-Squared = 55.2903
but latest trial 11.0949 gives Chi-Squared = 11.6345
Reduced chi-squared = 1.277626 for 56 degrees of freedom
Null hypothesis probability = 7.878E-02
Photon flux (15-150 keV) in 1.000 sec: 0.829659 ( -0.14434 0.144415 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.79143e-08 ( -5.6868e-09 6.1576e-09 ) ergs/cm2
Band function
Time interval is from 5.260 sec. to 6.260 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -7.62484 ( -2.37516 5.03532 )
beta : -4.47581 ( -0.943418 0.795612 )
Epeak [keV] : 75.2478 ( -75.1478 9924.75 )
Norm@50keV : 0.119481 ( -7.417800E-02 0.127278 )
------------------------------------------------------------
Chi-Squared = 69.25301 using 59 PHA bins.
Reduced chi-squared = 1.259146 for 55 degrees of freedom
Null hypothesis probability = 9.358E-02
Photon flux (15-150 keV) in 1.000 sec: 0.829667 ( -0.144344 0.144412 ) ph/cm2/s
Energy fluence (15-150 keV) : 2.84564e-08 ( -5.6954e-09 3.59546e-06 ) ergs/cm2
Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)
Power-law model
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 4.96537 ( -0.475216 0.497056 )
Norm@50keV : 4.022829E-04 ( -1.526934E-04 2.129853E-04) )
------------------------------------------------------------
Chi-Squared = 65.02242 using 59 PHA bins.
Reduced chi-squared = 1.140744 for 57 degrees of freedom
Null hypothesis probability = 0.218
Photon flux (15-150 keV) in 9.976 sec: 0.600549 ( -0.063191 0.063374 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92354e-07 ( -1.9968e-08 2.00139e-08 ) ergs/cm2
Cutoff power-law model
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 1.86887 ( -0.661133 0.102211 )
Epeak [keV] : 0.880487 ( )
Norm@50keV : 0.144254 ( -5.542061E-02 0.103901 )
------------------------------------------------------------
Chi-Squared = 67.87502 using 59 PHA bins.
but latest trial 1.20774 gives Chi-Squared = 195.278
Reduced chi-squared = 1.212054 for 56 degrees of freedom
Null hypothesis probability = 0.133
Photon flux (15-150 keV) in 9.976 sec: 0.600010 ( -0.063117 0.063296 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92277e-07 ( -1.9959e-08 2.00158e-08 ) ergs/cm2
Band function
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : -8.43092 ( -1.56908 2.66841 )
beta : -4.96388 ( -0.498966 0.473880 )
Epeak [keV] : 238.959 ( -238.859 9761.04 )
Norm@50keV : 5.474985E-02 ( -2.080422E-02 2.887402E-02) )
------------------------------------------------------------
Chi-Squared = 65.02241 using 59 PHA bins.
Reduced chi-squared = 1.182226 for 55 degrees of freedom
Null hypothesis probability = 0.167
Photon flux (15-150 keV) in 9.976 sec: 3.40993 ( ) ph/cm2/s
Energy fluence (15-150 keV) : 1.92679e-07 ( -1.99999e-08 1.97674e-08 ) ergs/cm2
S(25-50 keV) vs. S(50-100 keV) plot
S(25-50 keV) = 3.69313e-08
S(50-100 keV) = 4.73494e-09
T90 vs. Hardness ratio plot
T90 = 9.05199998617172 sec.
Hardness ratio = 0.128209
Color vs. Color plot
Count ratio (25-50 keV) / (15-25 keV) = 0.152159
Count ratio (100-50 keV) / (15-25 keV) = 0.0653612
DPI of the refined source position
IMX = -2.130873873322185E-02, IMY = -4.467616821735004E-03
TIME vs. PHA plot around the trigger time
TIME vs. DetID plot around the trigger time
100 us light curve (15-350 keV)
Bright source in the pre-burst/pre-slew/post-slew images
Pre-burst image of 15-350 keV band
Time interval of the image is from -218.635 sec. to -0.972 sec.
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
244.9795 -15.6402 0.0000 23.8 64.2 15.2658 56.9 Sco X-1
255.9866 -37.8441 0.0000 12.4 -13.6 0.5125 2.4 4U 1700-377
256.4354 -36.4231 0.0000 11.2 -9.4 1.1127 5.3 GX 349+2
263.0090 -24.7456 0.0000 5.2 88.6 0.6001 2.9 GX 1+4
264.7429 -44.4500 0.0000 15.5 -50.9 0.2879 1.2 4U 1735-44
268.3680 -1.4526 0.0000 27.6 128.9 0.3695 1.2 SW J1753.5-0127
270.2842 -25.0792 0.0000 5.2 166.8 -0.4728 -2.1 GX 5-1
270.3025 -25.7431 0.0000 4.8 172.2 0.8203 3.8 GRS 1758-258
274.0058 -14.0364 0.0000 16.6 151.4 2.0382 9.2 GX 17+2
275.9250 -30.3670 0.0000 8.4 -133.8 0.7030 3.3 H1820-303
285.0360 -24.9205 0.0000 17.1 -154.8 0.1942 0.9 HT1900.1-2455
288.7983 +10.9456 0.0000 45.4 156.3 1.6722 2.6 GRS 1915+105
202.5551 -49.6354 0.0483 51.7 -7.6 2.0126 4.0 UNKNOWN
207.7416 -23.8644 0.0368 52.2 25.7 5.6993 5.2 UNKNOWN
------------------------------------------
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image is from -0.972 sec. to 9.004 sec.
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
244.9795 -15.6402 0.0000 23.8 64.2 -0.0561 -1.3 Sco X-1
255.9866 -37.8441 0.0000 12.4 -13.6 0.0258 0.8 4U 1700-377
256.4354 -36.4231 0.0000 11.2 -9.4 -0.0049 -0.2 GX 349+2
263.0090 -24.7456 0.0000 5.2 88.6 -0.0119 -0.3 GX 1+4
264.7429 -44.4500 0.0000 15.5 -50.9 0.0191 0.6 4U 1735-44
268.3680 -1.4526 0.0000 27.6 128.9 0.0937 2.0 SW J1753.5-0127
270.2842 -25.0792 0.0000 5.2 166.8 -0.0122 -0.4 GX 5-1
270.3025 -25.7431 0.0000 4.8 172.2 -0.0225 -0.7 GRS 1758-258
274.0058 -14.0364 0.0000 16.6 151.4 -0.0477 -1.4 GX 17+2
275.9250 -30.3670 0.0000 8.4 -133.8 -0.0055 -0.2 H1820-303
285.0360 -24.9205 0.0000 17.1 -154.8 -0.0266 -0.8 HT1900.1-2455
288.7983 +10.9456 0.0000 45.4 156.3 0.0307 0.3 GRS 1915+105
192.3829 -67.4244 0.0389 57.3 -29.3 1.0218 5.0 UNKNOWN
267.3688 -28.1157 0.0099 1.2 168.2 0.6674 19.5 UNKNOWN
------------------------------------------
Post-slew image of 15-350 keV band
Time interval of the image is from 54.365 sec. to 902.960 sec.
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
244.9795 -15.6402 0.0000 24.2 98.8 52.0966 63.5 Sco X-1
255.9866 -37.8441 0.0000 13.6 24.0 3.7927 6.3 4U 1700-377
256.4354 -36.4231 0.0000 12.4 27.8 3.6538 5.9 GX 349+2
263.0090 -24.7456 0.0000 5.2 112.0 1.8081 3.1 GX 1+4
264.7429 -44.4500 0.0000 16.5 -10.9 1.2111 2.1 4U 1735-44
268.3680 -1.4526 0.0000 26.7 164.6 1.3444 2.0 SW J1753.5-0127
270.2842 -25.0792 0.0000 4.0 -156.6 0.5692 0.9 GX 5-1
270.3025 -25.7431 0.0000 3.5 -149.5 2.3155 3.7 GRS 1758-258
274.0058 -14.0364 0.0000 15.4 -172.7 6.4673 8.8 GX 17+2
275.9250 -30.3670 0.0000 7.8 -88.7 3.3890 5.8 H1820-303
285.0360 -24.9205 0.0000 16.1 -115.0 0.3561 0.6 HT1900.1-2455
288.7983 +10.9455 0.0000 44.2 -166.7 7.0222 6.1 GRS 1915+105
228.1990 -64.9263 0.0500 44.2 5.0 3.7283 3.9 UNKNOWN
253.9485 -8.3617 0.0418 23.5 127.1 3.3463 4.6 UNKNOWN
255.3082 -46.1980 0.0354 20.4 7.0 3.1904 5.5 UNKNOWN
277.3711 -23.7924 0.0341 9.9 -131.1 3.2380 5.6 UNKNOWN
------------------------------------------