========================================================================== BAT GROUND-DETECTED GRB DATA PROCESSING REPORT Process Script: hand-made scripts that follow steps in batgrbproduct but without using TDRSS info Process Start Time: Tue Oct 21 01:37:36 EDT 2014 Host Name: bat1 Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/ground_detect_bursts/scripts ========================================================================== BAT Trigger Time: 427199289.6 UTC: 2014-07-16T10:27:57.328 [includes UTCF correction] Where From?: Ground analysis (best_duration.txt) NOTE: BAT trigger time for ground-detected burst is the T100 start time. Analysis Position: [ source = GCN ] RA: 108.175 Dec: -60.153 [deg; J2000] Refined Position: [ source = BAT pre-slew image ] RA: 108.175 Dec: -60.1531 [deg; J2000] { 07h 12m 42.0s , -60d -9' -11.2" } +/- 3.05557009359 [arcmin] (estimated 90% radius based on SNR) SNR: 6.16859515 Angular difference between the analysis and refined position is 0.006000 arcmin Partial Coding Fraction: 6.933594e-02 [ including projection effects ] Duration T90: 124.800000071526 +/- 1.6 Measured from: 4.8 to: 129.6 [s; relative to TRIGTIME] T50: 68.8000000119209 +/- 1.6 Measured from: 33.6 to: 102.4 [s; relative to TRIGTIME] ====== Table of the duration information ============================= Value tstart tstop T100 136.000 0.000 136.000 T90 124.800 4.800 129.600 T50 68.800 33.600 102.400 Peak 1.000 0.300 1.300 ====== 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 -1.691 -0.174 0.171 - - - 3.48e-02 -3.59e-03 3.57e-03 52.070 57 CPL -1.432 -0.417 0.741 116.701 -91.018 -116.701 4.66e-02 -3.26e-02 5.80e-02 51.630 56 === 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 5.38e-07 8.79e-07 1.09e-06 2.67e-06 3.26e-06 5.18e-06 erg/cm2 90%_error_low -9.17e-08 -9.57e-08 -1.41e-07 -6.66e-07 -3.46e-07 -7.92e-07 erg/cm2 90%_error_hi 9.66e-08 9.49e-08 1.39e-07 7.85e-07 3.46e-07 8.74e-07 erg/cm2 Peak flux PL N/A N/A N/A N/A N/A N/A ph/cm2/s
#RAcent DECcent POSerr Theta Phi Peak_Cts SNR Name 108.141 -60.147 0.000 58.312 -176.220 4.622 16.491 TRIG_00604793 Image time interval: 98.400 to 108.532 [sec]
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.
Time interval is from 98.400 sec. to 108.500 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.69115 ( -0.174042 0.170602 ) Norm@50keV : 3.48375E-02 ( -0.00358557 0.00357368 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 52.07 using 59 PHA bins. # Reduced chi-squared = 0.9136 for 57 degrees of freedom # Null hypothesis probability = 6.600299e-01 Photon flux (15-150 keV) in 10.1 sec: 4.61279 ( -0.50192 0.50429 ) ph/cm2/s Energy fluence (15-150 keV) : 3.26063e-06 ( -3.45682e-07 3.4641e-07 ) ergs/cm2
Time interval is from 98.400 sec. to 108.500 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.43238 ( -0.41716 0.741344 ) Epeak [keV] : 116.701 ( -91.0208 -116.704 ) Norm@50keV : 4.65508E-02 ( -0.0326161 0.0580394 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 51.63 using 59 PHA bins. # Reduced chi-squared = 0.9220 for 56 degrees of freedom # Null hypothesis probability = 6.407837e-01 Photon flux (15-150 keV) in 10.1 sec: 4.56199 ( -0.51688 0.51965 ) ph/cm2/s Energy fluence (15-150 keV) : 3.23103e-06 ( -3.58522e-07 3.55556e-07 ) ergs/cm2
1-s peak spectrum unavailable, likely because there are no event data in the 1-s peak range.
T90 = N/A sec. Hardness ratio (energy fluence ratio) = N/A
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.
IMX = -1.61637595548, IMY = 0.106785482856
Time interval of the image: 104.672000 104.864000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 135.6550 -40.4477 52.7 36.9 -155.7 -0.0014 -0.2 8.6 Vela X-1 170.5253 -60.6209 7.3 37.4 154.7 0.0137 1.6 6.2 Cen X-3 186.2275 -62.8669 0.0 40.3 143.2 0.0061 0.6 13.1 GX 301-2 202.3582 -48.9322 2.2 33.6 117.9 0.0510 5.2 ------ UNKNOWN 208.8393 8.4341 2.2 46.1 21.8 0.0614 5.4 ------ UNKNOWN 196.8278 -17.5354 1.9 21.5 49.9 0.0319 5.9 ------ UNKNOWN 145.1180 -59.7123 2.7 41.9 173.2 0.0327 4.3 ------ UNKNOWN 185.5200 33.6459 2.7 57.9 -18.0 0.0919 4.2 ------ UNKNOWN
Webpage updated on: Fri Dec 18 18:23:47 EST 2015