batgrbproduct Analysis for Trigger=530214
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): Tue Aug 7 12:27:10 EDT 2012
Host Name: gcn5
Current Working Dir: /local/data/raid16/prebascript_archive/trigger530214/GCN5_download_cron
======================================================================
Trigger: 00530214 Segment: 000
BAT Trigger Time: 365967221.376 [s; MET]
Trigger Stop: 365967223.424 [s; MET]
UTC: 2012-08-06T17:33:31.867720 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 55.3180830398277 Dec: 40.9304642039381 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 6.56
Image Trigger?: NO
Rate S/N Ratio: 41.7971290880127 [ if not an image trigger ]
Image S/N Ratio: 6.56
Flight Position: [ source = BAT ]
RA: 55.3180830398277 Dec: 40.9304642039381 [deg; J2000]
Ground Position: [ source = BAT pre-slew burst ]
RA: 55.3293944770606 Dec: 41.0236416471029 [deg; J2000]
{ 03h 41m 19.1s , +41d 01' 25.1" }
+/- 5.63145172578567 [arcmin] (estimated 90% radius based on SNR)
+/- 3.71900948151428 [arcmin] (formal 1-sigma fit error)
SNR: 2.57515617060972
Angular difference between Flight and Ground position is 5.614078 arcmin
Partial Coding Fraction: 0.640625 [ including projection effects ]
Duration
T90: 2.04800003767014 +/-
Measured from: 0
to: 2.04800003767014 [s; relative to TRIGTIME]
T50: 2.04800003767014 +/-
Measured from: 0
to: 2.04800003767014 [s; relative to TRIGTIME]
WARNING: battblocks failed. Used TDRSS fore/background intervals
Fluence
Peak Flux (peak 2.04800003767014 second)
Measured from: -2.98023223876953e-08
to: 2.04800000786781 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0
to: 2.04800003767014 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.041520 0.002242 -0.004024 -0.002876
0.009197 0.009482 0.008584 0.008164 [error]
Peak 0.041520 0.002242 -0.004024 -0.002876
0.009197 0.009482 0.008584 0.008164 [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 7.27e-09 5.69e-09 2.99e-09 2.28e-09 1.70e-08 1.81e-08 erg/cm2
Error 4.37e-09 4.23e-09 4.31e-09 7.76e-09 1.25e-08 1.96e-08 erg/cm2
Peak flux Power-law 1.18e-01 5.19e-02 1.36e-02 4.43e-03 1.86e-01 1.88e-01 ph/cm2/s
Error 7.23e-02 3.74e-02 1.90e-02 1.34e-02 1.12e-01 1.14e-01 ph/cm2/s
Fluence Cutoff-PL 1.22e-08 6.35e-09 1.03e-11 5.74e-20 1.85e-08 0.00e+00 erg/cm2
Error 5.03e-09 3.51e-09 6.69e-11 4.22e-16 7.34e-09 0.00e+00 erg/cm2
Peak flux Cutoff-PL 1.88e-01 6.58e-02 5.99e-05 1.70e-13 2.54e-01 2.54e-01 ph/cm2/s
Error 7.96e-02 3.26e-02 3.75e-04 1.24e-09 9.87e-02 9.87e-02 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 2.929 1.241 - - 7.13e-04 7.98e-04 60.260 57
CPL -6.904 0.000 22.0 4.1 3.10e+04 6.82e+06 51.730 56
=== 1-s peak spectral analysis ===
Model Ph_index Ph_90err Epeak Epeak_90err Norm Nomr_90err chi2 dof
PL 2.929 1.241 - - 7.13e-04 7.98e-04 60.260 57
CPL -6.904 0.000 22.0 4.1 3.10e+04 6.82e+06 51.730 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 2.048 0.000 2.048
T90 2.048 0.000 2.048
T50 2.048 0.000 2.048
Peak 2.048 -0.000 2.048
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name
55.3294 +41.0236 0.0744 36.3 -22.3 0.0471 2.6 TRIG_00530214
------------------------------------------
Foreground time interval of the image:
0.000 2.048 (delta_t = 2.048 [sec])
Background time interval of the image:
-239.376 -230.316 (delta_t = 9.060 [sec])
-229.376 -13.376 (delta_t = 216.000 [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 0.000 sec. to 2.048 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.92853 ( -1.05142 1.43154 )
Norm@50keV : 7.13015E-04 ( -0.00071329 0.000882638 )
------------------------------------------------------------
# Chi-Squared = 60.26 using 59 PHA bins.
# Reduced chi-squared = 1.057 for 57 degrees of freedom
# Null hypothesis probability = 3.587349e-01
Photon flux (15-150 keV) in 2.048 sec: 0.186249 ( -0.110905 0.113246 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.69982e-08 ( -1.09242e-08 1.407e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 2.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -6.90384 ( )
Epeak [keV] : 22.0170 ( -3.9934 4.27664 )
Norm@50keV : 3.10483E+04 ( -9.03556e+06 4.61265e+06 )
------------------------------------------------------------
# Chi-Squared = 51.73 using 59 PHA bins.
# Reduced chi-squared = 0.9238 for 56 degrees of freedom
# Null hypothesis probability = 6.370647e-01
Photon flux (15-150 keV) in 2.048 sec: 0.254078 ( -0.098707 0.098734 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.85352e-08 ( -7.2463e-09 7.43076e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 2.048 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.38502 ( 1.33728 1.33728 )
beta : -9.99881 ( 2666.68 2676.67 )
Epeak [keV] : 21.4903 ( -4.4485 4.90566 )
Norm@50keV : 368.053 ( -371.215 340.083 )
------------------------------------------------------------
# Chi-Squared = 53.23 using 59 PHA bins.
# Reduced chi-squared = 0.9679 for 55 degrees of freedom
# Null hypothesis probability = 5.424638e-01
Photon flux (15-150 keV) in 2.048 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] : 5.01085 (-1.31064 1.88309)
R^2/D10^2 : 1.99570 (-1.99603 6.2502)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared = 55.29 using 59 PHA bins.
# Reduced chi-squared = 0.9701 for 57 degrees of freedom
# Null hypothesis probability = 5.393263e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.003e-08 6.357e-09
25- 50 6.583e-09 4.615e-09
50-150 2.705e-10 2.735e-10
15-150 1.688e-08 1.115e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 15.2478 (-7.7144 25.194)
Norm : 3.53110 (-3.53133 7.5124)
------------------------------------------------------------
# Chi-Squared = 58.31 using 59 PHA bins.
# Reduced chi-squared = 1.023 for 57 degrees of freedom
# Null hypothesis probability = 4.269135e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.564e-09 5.629e-09
25- 50 5.931e-09 4.336e-09
50-150 1.080e-09 1.317e-09
15-150 1.558e-08 1.071e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.03915 (-1.33192 1.86554)
R1^2/D10^2 : 1.94224 (-1.9861 6.26099)
kT2 [keV] : 6.21207E-02 (-0.0621207 -0.0621207)
R2^2/D10^2 : 1.51424E-02 (-0.0151782 -0.0151782)
------------------------------------------------------------
# Chi-Squared = 55.30 using 59 PHA bins.
# Reduced chi-squared = 1.005 for 55 degrees of freedom
# Null hypothesis probability = 4.634653e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 2.048 sec.
Spectral model in power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: 2.92853 ( -1.05142 1.43154 )
Norm@50keV : 7.13015E-04 ( -0.00071329 0.000882638 )
------------------------------------------------------------
# Chi-Squared = 60.26 using 59 PHA bins.
# Reduced chi-squared = 1.057 for 57 degrees of freedom
# Null hypothesis probability = 3.587349e-01
Photon flux (15-150 keV) in 2.048 sec: 0.186249 ( -0.110905 0.113246 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.69982e-08 ( -1.09242e-08 1.407e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 2.048 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
Photon index: -6.90384 ( )
Epeak [keV] : 22.0170 ( -3.9934 4.27664 )
Norm@50keV : 3.10483E+04 ( -9.03556e+06 4.61265e+06 )
------------------------------------------------------------
# Chi-Squared = 51.73 using 59 PHA bins.
# Reduced chi-squared = 0.9238 for 56 degrees of freedom
# Null hypothesis probability = 6.370647e-01
Photon flux (15-150 keV) in 2.048 sec: 0.254078 ( -0.098707 0.098734 ) ph/cm2/s
Energy fluence (15-150 keV) : 1.85352e-08 ( -7.2463e-09 7.43076e-09 ) ergs/cm2
Band function
Time interval is from 0.000 sec. to 2.048 sec.
Spectral model in the Band function:
------------------------------------------------------------
Parameters : value lower 90% higher 90%
alpha : 4.38502 ( 1.33728 1.33728 )
beta : -9.99881 ( 2666.68 2676.67 )
Epeak [keV] : 21.4903 ( -4.4485 4.90566 )
Norm@50keV : 368.053 ( -371.215 340.084 )
------------------------------------------------------------
# Chi-Squared = 53.23 using 59 PHA bins.
# Reduced chi-squared = 0.9679 for 55 degrees of freedom
# Null hypothesis probability = 5.424638e-01
Photon flux (15-150 keV) in 2.048 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] : 5.01085 (-1.31064 1.88309)
R^2/D10^2 : 1.99570 (-1.99603 6.2502)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
# Chi-Squared = 55.29 using 59 PHA bins.
# Reduced chi-squared = 0.9701 for 57 degrees of freedom
# Null hypothesis probability = 5.393263e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 1.003e-08 6.401e-09
25- 50 6.583e-09 4.567e-09
50-150 2.705e-10 3.111e-10
15-150 1.688e-08 1.163e-08
Thermal bremsstrahlung (OTTB)
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT [keV] : 15.2478 (-7.7144 25.194)
Norm : 3.53110 (-3.53133 7.5124)
------------------------------------------------------------
# Chi-Squared = 58.31 using 59 PHA bins.
# Reduced chi-squared = 1.023 for 57 degrees of freedom
# Null hypothesis probability = 4.269135e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 8.564e-09 5.553e-09
25- 50 5.931e-09 4.439e-09
50-150 1.080e-09 1.412e-09
15-150 1.558e-08 1.130e-08
Double BB
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters : value Lower 90% Upper 90%
kT1 [keV] : 5.03915 (-1.33192 1.86554)
R1^2/D10^2 : 1.94224 (-1.9861 6.26099)
kT2 [keV] : 6.21207E-02 (-0.0621207 -0.0621207)
R2^2/D10^2 : 1.51424E-02 (-0.0151782 -0.0151782)
------------------------------------------------------------
# Chi-Squared = 55.30 using 59 PHA bins.
# Reduced chi-squared = 1.005 for 55 degrees of freedom
# Null hypothesis probability = 4.634653e-01
Energy Fluence 90% Error
[keV] [erg/cm2] [erg/cm2]
15- 25 0.000e+00 0.000e+00
25- 50 0.000e+00 0.000e+00
50-150 0.000e+00 0.000e+00
15-150 0.000e+00 0.000e+00
Plot creation:
Tue Aug 7 12:50:05 EDT 2012