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.
Angular difference between the analysis and refined position is Usage: arcmin
Partial Coding Fraction: [ including projection effects ]
Duration
T90: 16.3839999437332 +/-
Measured from: 0
to: 16.3839999437332 [s; relative to TRIGTIME]
T50: 16.3839999437332 +/-
Measured from: 0
to: 16.3839999437332 [s; relative to TRIGTIME]
WARNING: battblocks failed. Used TDRSS fore/background intervals
Fluence
Peak Flux (peak 16.3839999437332 second)
Measured from: 5.96046447753906e-08
to: 16.3840000033379 [s; relative to TRIGTIME]
Total Fluence
Measured from: 0
to: 16.3839999437332 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total WARNING: could not be found
Peak WARNING: could not be found
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 16.384 0.000 16.384
T90 16.384 0.000 16.384
T50 16.384 0.000 16.384
Peak 16.384 0.000 16.384
====== 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: N/A)
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 N/A N/A N/A - - - N/A N/A N/A N/A N/A
CPL N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
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 N/A N/A N/A - - - N/A N/A N/A N/A N/A
CPL N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
=== 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 N/A N/A N/A N/A N/A N/A erg/cm2
Image
Pre-slew 15-350 keV image (Event data; bkg subtracted)
Foreground time interval of the image: Background time interval of the image:
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
Multiple GTIs in the spectrum tstart tstop XSPEC: quit Spectral model in power-law: Photon index: ( ) Parameters : value lower 90% higher 90% Photon index: ( ) Norm@50keV : ( ) ------------------------------------------------------------ Reduced chi-squared = Photon flux (15-150 keV) in sec: ( ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Cutoff power-law model
Multiple GTIs in the spectrum tstart tstop Spectral model in the cutoff power-law: Photon index: ( ) Parameters : value lower 90% higher 90% Photon index: ( ) Epeak [keV] : ( ) Norm@50keV : ( ) ------------------------------------------------------------ Reduced chi-squared = Photon flux (15-150 keV) in sec: ( ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
1-s peak spectrum fit
Power-law model
Time interval is from 0.000 sec. to 0.000 sec. XSPEC: quit Spectral model in power-law: Photon index: ( ) Parameters : value lower 90% higher 90% Photon index: ( ) Norm@50keV : ( ) ------------------------------------------------------------ Reduced chi-squared = Photon flux (15-150 keV) in sec: ( ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Cutoff power-law model
Time interval is from 0.000 sec. to 0.000 sec. Spectral model in the cutoff power-law: Photon index: ( ) Parameters : value lower 90% higher 90% Photon index: ( ) Epeak [keV] : ( ) Norm@50keV : ( ) ------------------------------------------------------------ Reduced chi-squared = Photon flux (15-150 keV) in sec: ( ) ph/cm2/s Energy fluence (15-150 keV) : 0 ( 0 0 ) ergs/cm2
Time-resolved spectra
Distribution
T90 vs. Hardness ratio plot
T90 = N/A sec. Hardness ratio (energy fluence ratio) = N/A
S(15-50 keV) vs. S(50-150 keV) plot
S(15-50 keV) = N/A S(50-150 keV) = N/A
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 = 0, IMY = 0
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: -239.544000 -85.507500 -83.544000 -77.833500 -76.544000 -76.417500 -75.544000 -75.273800 -71.544000 -71.049900 -68.544000 -66.668800 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 83.6196 22.0287 1.5 40.0 55.3 5.5682 7.9 1.1 Crab 135.4422 -40.5802 6.5 51.2 -179.5 1.2650 1.8 4.2 Vela X-1 124.3686 -2.4855 2.2 44.6 127.2 6.4510 5.3 ------ UNKNOWN 130.5065 -38.8193 3.5 47.1 179.2 1.9403 3.4 ------ UNKNOWN 95.7811 -58.0642 2.4 41.5 -138.9 1.9892 4.8 ------ UNKNOWN
Pre-slew background subtracted image of 15-350 keV band
Time interval of the image:
Post-slew image of 15-350 keV band
Time interval of the image: 242.456000 246.085200 248.456000 283.686400 284.456000 285.110700 290.456000 762.656590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 72.3515 -6.1546 2.9 32.1 77.5 5.2228 4.0 ------ UNKNOWN 41.3105 8.3831 2.5 44.0 23.7 4.6412 4.6 ------ UNKNOWN 24.5521 -1.4064 2.6 42.9 -4.6 4.7406 4.4 ------ UNKNOWN 117.4975 -71.0923 2.4 49.6 -159.5 6.4637 4.8 ------ UNKNOWN 11.7935 -43.7442 2.7 34.4 -76.9 4.7478 4.4 ------ UNKNOWN