Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Sun Jan 12 00:26:06 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger563980
======================================================================
Trigger: 00563980 Segment: 000
BAT Trigger Time: 396445042.368 [s; MET]
Trigger Stop: 396445050.56 [s; MET]
UTC: 2013-07-25T11:37:11.536020 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 230.033541703187 Dec: 0.623637856485605 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.52
Image Trigger?: NO
Rate S/N Ratio: 14.5258390463339 [ if not an image trigger ]
Image S/N Ratio: 7.52
Analysis Position: [ source = BAT ]
RA: 230.033541703187 Dec: 0.623637856485605 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 230.056049346731 Dec: 0.621820944288633 [deg; J2000]
{ 15h 20m 13.5s , +00d 37' 18.6" }
+/- 2.58757441878119 [arcmin] (estimated 90% radius based on SNR)
+/- 1.1522834468995 [arcmin] (formal 1-sigma fit error)
SNR: 7.82116508560895
Angular difference between the analysis and refined position is 1.354772 arcmin
Partial Coding Fraction: 0.3945312 [ including projection effects ]
Duration
T90: 101.520000040531 +/- 20.2261597201198
Measured from: -4.42399996519089
to: 97.0960000753403 [s; relative to TRIGTIME]
T50: 51.6480000019073 +/- 25.0694447022833
Measured from: 5.60800004005432
to: 57.2560000419617 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 2.97200000286102
to: 3.97200000286102 [s; relative to TRIGTIME]
Total Fluence
Measured from: -9.83199995756149
to: 103.400000035763 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.537019 0.543660 0.410831 0.203966
0.095829 0.083608 0.070926 0.059213 [error]
Peak 0.020148 0.017523 0.028668 0.013810
0.009125 0.008267 0.007369 0.005852 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 113.232 -9.832 103.400
T90 101.520 -4.424 97.096
T50 51.648 5.608 57.256
Peak 1.000 2.972 3.972
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_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 both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.603 -0.304 0.299 - - - 9.23e-04 -1.47e-04 1.45e-04 56.020 57
CPL -1.616 -0.291 0.606 9999.360 -9999.360 -9999.360 9.18e-04 -1.41e-04 8.44e-04 56.040 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.158 -0.702 0.788 - - - 4.93e-03 -1.71e-03 1.61e-03 67.290 57
CPL -1.195 -0.666 0.908 9999.360 -9999.360 -9999.360 4.97e-03 -1.73e-03 1.13e-02 67.300 56
=== 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 PL 1.47e-07 2.54e-07 3.34e-07 8.95e-07 9.77e-07 1.63e-06 erg/cm2
90%_error_low -3.98e-08 -4.17e-08 -7.19e-08 -3.60e-07 -1.66e-07 -4.23e-07 erg/cm2
90%_error_hi 4.29e-08 4.09e-08 7.07e-08 5.05e-07 1.68e-07 5.37e-07 erg/cm2
Peak flux PL 1.46e-01 1.80e-01 1.62e-01 2.51e-01 5.75e-01 7.39e-01 ph/cm2/s
90%_error_low -9.72e-02 -8.58e-02 -6.15e-02 -1.64e-01 -2.03e-01 -2.43e-01 ph/cm2/s
90%_error_hi 1.31e-01 7.73e-02 5.69e-02 3.18e-01 2.06e-01 2.59e-01 ph/cm2/s
Fluence CPL 1.49e-07 2.53e-07 3.29e-07 1.02e-06 9.86e-07 1.61e-06 erg/cm2
90%_error_low N/A -4.16e-08 N/A -6.73e-07 -1.75e-07 -5.62e-07 erg/cm2
90%_error_hi N/A 4.19e-08 N/A 8.45e-08 1.59e-07 5.19e-07 erg/cm2
Peak flux CPL 1.22e-01 7.28e-02 2.90e-02 1.80e-02 2.32e-01 2.43e-01 ph/cm2/s
90%_error_low -1.22e-01 -7.28e-02 -2.90e-02 -1.80e-02 -2.32e-01 -2.43e-01 ph/cm2/s
90%_error_hi 1.56e-01 1.18e-01 4.96e-02 5.24e-02 3.99e-01 3.79e-01 ph/cm2/s
======================================================================
Image
Pre-slew 15.0-350.0 keV image (Event data)
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 230.0560 0.6218 0.0247 30.7640 -98.9325 1.5354404 7.821 TRIG_00563980 Foreground time interval of the image: -9.832 103.400 (delta_t = 113.232 [sec]) Background time interval of the image: -239.368 -9.832 (delta_t = 229.536 [sec])
Light Curves
Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.
Full-time range; 1 s binning
Other quick-look light curves:
- 64 ms binning (zoomed)
- 16 ms binning (zoomed)
- 8 ms binning (zoomed)
- 2 ms binning (zoomed)
- SN=5 or 10 s binning (full-time range)
- Raw light curve
Spectra
- 64 ms binning (zoomed)
- 16 ms binning (zoomed)
- 8 ms binning (zoomed)
- 2 ms binning (zoomed)
- SN=5 or 10 s binning (full-time range)
- Raw light curve
Spectra
Notes:
- 1) The fitting includes the systematic errors.
- 2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using 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.
Time averaged spectrum fit using the average DRM
Power-law model
Time interval is from -9.832 sec. to 103.400 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.60299 ( -0.303868 0.299385 ) Norm@50keV : 9.23266E-04 ( -0.000147323 0.0001452 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 56.02 using 59 PHA bins. # Reduced chi-squared = 0.9829 for 57 degrees of freedom # Null hypothesis probability = 5.116970e-01 Photon flux (15-150 keV) in 113.2 sec: 0.118758 ( -0.0189969 0.019083 ) ph/cm2/s Energy fluence (15-150 keV) : 9.77207e-07 ( -1.66028e-07 1.68271e-07 ) ergs/cm2
Cutoff power-law model
Time interval is from -9.832 sec. to 103.400 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.61643 ( -0.291698 0.604979 ) Epeak [keV] : 9999.36 ( -9999.36 -9999.36 ) Norm@50keV : 9.18281E-04 ( -0.000146042 0.000838417 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 56.04 using 59 PHA bins. # Reduced chi-squared = 1.001 for 56 degrees of freedom # Null hypothesis probability = 4.732678e-01 Photon flux (15-150 keV) in 113.2 sec: 0.119167 ( -0.0197233 0.018984 ) ph/cm2/s Energy fluence (15-150 keV) : 9.85999e-07 ( -1.75026e-07 1.58977e-07 ) ergs/cm2
1-s peak spectrum fit
Power-law model
Time interval is from 2.972 sec. to 3.972 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.15835 ( -0.702017 0.787642 ) Norm@50keV : 4.92765E-03 ( -0.00171275 0.00160687 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 67.29 using 59 PHA bins. # Reduced chi-squared = 1.180 for 57 degrees of freedom # Null hypothesis probability = 1.654217e-01 Photon flux (15-150 keV) in 1 sec: 0.575192 ( -0.203185 0.206068 ) ph/cm2/s Energy fluence (15-150 keV) : 5.06104e-08 ( -1.7527e-08 1.76659e-08 ) ergs/cm2
Cutoff power-law model
Time interval is from 2.972 sec. to 3.972 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.19506 ( -0.668814 0.905466 ) Epeak [keV] : 9999.36 ( -9999.36 -9999.36 ) Norm@50keV : 4.96708E-03 ( -0.00172634 0.0113322 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 67.30 using 59 PHA bins. # Reduced chi-squared = 1.202 for 56 degrees of freedom # Null hypothesis probability = 1.432581e-01 Photon flux (15-150 keV) in 1 sec: 0.232243 ( -0.232243 0.399129 ) ph/cm2/s Energy fluence (15-150 keV) : 5.05266e-08 ( -1.74691e-08 1.77151e-08 ) ergs/cm2
Time-resolved spectra
Distribution
T90 vs. Hardness ratio plot
T90 = 101.52 sec. Hardness ratio (energy fluence ratio) = 1.31680098901
S(15-50 keV) vs. S(50-150 keV) plot
S(15-50 keV) = 4.006715e-07 S(50-150 keV) = 5.765278e-07
The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.
Mask shadow pattern
IMX = -9.242808461085956E-02, IMY = 5.880481593022540E-01
Spacecraft aspect plot
Bright source in the pre-burst/pre-slew/post-slew images
Pre-burst image of 15-350 keV band
Time interval of the image: -239.368000 -9.832000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 244.9882 -15.6435 0.2 19.9 -145.6 11.3759 53.1 0.5 Sco X-1 254.4578 35.3425 413.1 38.8 -23.2 0.0078 0.0 0.0 Her X-1 256.0140 -37.8332 9.6 35.1 171.2 0.3186 1.2 1.5 4U 1700-377 256.4580 -36.4055 2.2 33.6 170.9 1.3636 5.3 1.5 GX 349+2 263.0539 -24.7547 2.4 21.9 158.9 0.9973 4.8 2.5 GX 1+4 264.9764 -44.3274 0.0 41.5 160.1 -1.0201 -2.5 12.4 4U 1735-44 268.2611 -1.2696 0.0 7.8 62.4 0.0947 0.5 12.7 SW J1753.5-0127 270.3495 -25.0713 1.7 24.0 142.7 1.7031 6.9 3.6 GX 5-1 270.3184 -25.7181 4.5 24.6 143.4 0.6399 2.6 1.7 GRS 1758-258 273.9744 -13.9686 3.8 17.2 115.4 0.6222 3.0 4.5 GX 17+2 276.0337 -30.5191 9.2 31.2 138.6 0.3743 1.3 10.7 H1820-303 285.0115 -25.0523 4.3 32.2 120.3 0.9526 2.7 8.0 HT1900.1-2455 288.7663 10.9436 1.2 31.3 48.0 2.9124 9.5 1.9 GRS 1915+105 299.5455 35.1749 11.9 52.8 25.0 1.0280 1.0 2.7 Cyg X-1 262.8209 -33.8424 6.1 30.9 161.3 0.4816 1.9 8.4 GX 354-0 225.7647 24.4819 3.2 43.6 -64.1 4.1474 3.6 ------ UNKNOWN 219.7413 1.7580 3.7 41.1 -99.1 3.9949 3.1 ------ UNKNOWN 217.6091 -6.7886 2.8 43.0 -111.9 4.4950 4.1 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image: -9.832000 103.400000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 244.9008 -15.6344 2.9 20.0 -145.4 0.5235 4.0 4.6 Sco X-1 254.3643 35.4982 10.9 38.9 -23.3 -0.1798 -1.1 10.4 Her X-1 255.9143 -37.6735 4.9 35.0 171.3 0.3868 2.4 10.8 4U 1700-377 256.5182 -36.3488 9.0 33.6 170.8 -0.2060 -1.3 6.0 GX 349+2 263.1572 -24.6244 5.7 21.8 158.6 -0.2588 -2.0 10.9 GX 1+4 264.7255 -44.4018 5.9 41.6 160.4 0.4466 1.9 3.0 4U 1735-44 268.4750 -1.6355 0.0 8.0 65.3 0.1500 1.2 12.7 SW J1753.5-0127 270.2701 -24.9835 9.6 23.9 142.8 -0.1661 -1.2 5.8 GX 5-1 270.2734 -25.6660 5.8 24.5 143.5 -0.2845 -2.0 4.9 GRS 1758-258 273.8758 -14.1571 7.4 17.2 116.1 0.2031 1.6 10.5 GX 17+2 275.8867 -30.2214 6.3 30.8 138.5 0.3201 1.8 9.0 H1820-303 284.8881 -24.8590 11.2 32.0 120.1 0.2186 1.0 8.9 HT1900.1-2455 288.9087 11.0513 5.1 31.4 47.9 0.4328 2.3 9.1 GRS 1915+105 299.5098 35.3618 7.7 52.9 24.8 -0.9889 -1.5 10.4 Cyg X-1 262.7808 -33.9495 0.0 31.0 161.3 -0.3275 -2.2 12.5 GX 354-0 287.6641 -17.3816 2.5 30.2 105.2 0.9667 4.5 ------ UNKNOWN 286.8274 36.7721 2.2 46.6 13.9 1.4519 5.2 ------ UNKNOWN 237.3271 -23.0008 2.3 30.2 -148.7 0.6728 5.0 ------ UNKNOWN 230.0560 0.6218 1.5 30.8 -98.9 1.5349 7.8 ------ UNKNOWN 215.0280 -36.1822 2.3 53.5 -149.3 2.3735 5.1 ------ UNKNOWN
Post-slew image of 15-350 keV band
Time interval of the image: 518.932600 962.702300 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 254.4390 35.3884 8.1 57.8 -177.7 -2.1910 -1.4 2.9 Her X-1 299.6246 35.1770 1.9 25.1 155.6 1.7978 6.1 2.2 Cyg X-1 308.0900 40.9566 0.9 16.9 164.9 3.0861 13.2 0.9 Cyg X-3 326.2711 38.4288 2.3 5.1 114.5 1.1720 4.9 7.9 Cyg X-2 353.4634 15.6596 2.3 33.0 28.4 1.6405 5.0 ------ UNKNOWN 312.8503 28.2875 2.6 20.1 123.4 1.1800 4.5 ------ UNKNOWN 257.0057 33.6614 3.2 56.9 179.2 5.9724 3.5 ------ UNKNOWN 39.9136 24.3719 2.9 58.9 -24.3 7.6391 3.9 ------ UNKNOWN 41.6120 42.6677 4.6 50.7 -44.5 3.5432 2.5 ------ UNKNOWN