====================================================================== BAT GRB EVENT DATA PROCESSING REPORT Process Script Ver: batgrbproduct v2.46 Process Start Time: Sat Oct 4 21:02:44 EDT 2014 Host Name: batevent1 Current Working Dir: /local/data/batevent/batevent_reproc/trigger609885 ====================================================================== Trigger: 00609885 Segment: 000 BAT Trigger Time: 430080268.928 [s; MET] Trigger Stop: 430080270.976 [s; MET] UTC: 2014-08-18T18:44:16.515620 [includes UTCF correction] Where From?: TDRSS position message BAT RA: 271.147889570597 Dec: -1.36139902602599 [deg; J2000] Catalogged Source?: NO Point Source?: YES GRB Indicated?: YES [ by BAT flight software ] Image S/N Ratio: 7.63 Image Trigger?: NO Rate S/N Ratio: 10.8627804912002 [ if not an image trigger ] Image S/N Ratio: 7.63 Analysis Position: [ source = BAT ] RA: 271.147889570597 Dec: -1.36139902602599 [deg; J2000] Refined Position: [ source = BAT pre-slew burst ] RA: 271.175117118492 Dec: -1.35598151488953 [deg; J2000] { 18h 04m 42.0s , -01d 21' 21.5" } +/- 2.51630366791278 [arcmin] (estimated 90% radius based on SNR) +/- 1.29646611011694 [arcmin] (formal 1-sigma fit error) SNR: 8.13953764656927 Angular difference between the analysis and refined position is 1.665226 arcmin Partial Coding Fraction: 0.3945312 [ including projection effects ] Duration T90: 31.5520000457764 +/- 16.0461414097757 Measured from: -2.87199997901917 to: 28.6800000667572 [s; relative to TRIGTIME] T50: 9.60000002384186 +/- 5.56063881196498 Measured from: -0.824000000953674 to: 8.77600002288818 [s; relative to TRIGTIME] Fluence Peak Flux (peak 1 second) Measured from: 0.308000028133392 to: 1.30800002813339 [s; relative to TRIGTIME] Total Fluence Measured from: -3.31999999284744 to: 31.944000005722 [s; relative to TRIGTIME] Band 1 Band 2 Band 3 Band 4 15-25 25-50 50-100 100-350 keV Total 0.360988 0.391968 0.258527 0.006326 0.062231 0.055280 0.045902 0.037637 [error] Peak 0.032646 0.043252 0.039740 0.009858 0.010690 0.009967 0.008433 0.006533 [error] [ fluence units of on-axis counts / fully illuminated detector ] ====================================================================== ====== Table of the duration information ============================= Value tstart tstop T100 35.264 -3.320 31.944 T90 31.552 -2.872 28.680 T50 9.600 -0.824 8.776 Peak 1.000 0.308 1.308 ====== 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 -1.826 -0.281 0.271 - - - 2.00e-03 -3.31e-04 3.23e-04 43.800 57 CPL -1.757 -0.879 1.184 163.936 -163.849 -163.936 2.18e-03 -1.37e-03 7.18e-03 43.790 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 -1.622 -0.378 0.367 - - - 8.25e-03 -1.95e-03 1.94e-03 40.380 57 CPL -0.134 -1.529 2.214 66.591 -18.850 1144.879 4.25e-02 -4.25e-02 3.69e-01 37.640 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 1.23e-07 1.85e-07 2.08e-07 4.47e-07 6.50e-07 9.63e-07 erg/cm2 90%_error_low -2.88e-08 -2.80e-08 -4.59e-08 -1.75e-07 -1.07e-07 -2.24e-07 erg/cm2 90%_error_hi 3.04e-08 2.78e-08 4.59e-08 2.39e-07 1.08e-07 2.70e-07 erg/cm2 Peak flux PL 3.81e-01 3.57e-01 2.32e-01 2.33e-01 1.07e+00 1.20e+00 ph/cm2/s 90%_error_low -1.37e-01 -8.97e-02 -6.58e-02 -1.08e-01 -2.58e-01 -2.79e-01 ph/cm2/s 90%_error_hi 1.54e-01 8.86e-02 6.49e-02 1.48e-01 2.60e-01 2.79e-01 ph/cm2/s Fluence CPL 1.22e-07 1.86e-07 2.09e-07 3.97e-07 6.46e-07 9.13e-07 erg/cm2 90%_error_low -3.30e-08 -2.92e-08 -4.62e-08 -3.20e-07 -1.22e-07 -3.54e-07 erg/cm2 90%_error_hi 3.23e-08 3.62e-08 4.76e-08 8.87e-08 1.11e-07 1.94e-07 erg/cm2 Peak flux CPL 2.76e-01 3.97e-01 2.70e-01 8.08e-02 1.00e+00 1.02e+00 ph/cm2/s 90%_error_low -1.59e-01 -1.07e-01 -8.12e-02 -8.08e-02 -2.64e-01 -2.75e-01 ph/cm2/s 90%_error_hi 1.85e-01 1.10e-01 8.55e-02 1.76e-01 2.68e-01 2.99e-01 ph/cm2/s ======================================================================
# RAcent DECcent POSerr Theta Phi Peak Cts SNR Name 271.1751 -1.3560 0.0236 38.2076 23.3026 0.9660601 8.140 TRIG_00609885 Foreground time interval of the image: -3.320 31.773 (delta_t = 35.093 [sec]) Background time interval of the image: -239.928 -3.320 (delta_t = 236.608 [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 -3.320 sec. to 31.944 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.8258 ( -0.281262 0.270711 ) Norm@50keV : 2.00366E-03 ( -0.000330858 0.000323488 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 43.80 using 59 PHA bins. # Reduced chi-squared = 0.7684 for 57 degrees of freedom # Null hypothesis probability = 9.003222e-01 Photon flux (15-150 keV) in 35.26 sec: 0.278925 ( -0.042983 0.043198 ) ph/cm2/s Energy fluence (15-150 keV) : 6.49997e-07 ( -1.06881e-07 1.0834e-07 ) ergs/cm2
Time interval is from -3.320 sec. to 31.944 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.75691 ( -0.878384 1.18519 ) Epeak [keV] : 163.936 ( -165.816 -165.902 ) Norm@50keV : 2.18207E-03 ( -0.00136867 0.00717879 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 43.79 using 59 PHA bins. # Reduced chi-squared = 0.7819 for 56 degrees of freedom # Null hypothesis probability = 8.822538e-01 Photon flux (15-150 keV) in 35.26 sec: 0.278069 ( -0.044812 0.043813 ) ph/cm2/s Energy fluence (15-150 keV) : 6.46206e-07 ( -1.21566e-07 1.11031e-07 ) ergs/cm2
Time interval is from 0.308 sec. to 1.308 sec. Spectral model in power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -1.62162 ( -0.377977 0.366727 ) Norm@50keV : 8.24701E-03 ( -0.00195057 0.00193854 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 40.38 using 59 PHA bins. # Reduced chi-squared = 0.7083 for 57 degrees of freedom # Null hypothesis probability = 9.532043e-01 Photon flux (15-150 keV) in 1 sec: 1.06702 ( -0.257723 0.25991 ) ph/cm2/s Energy fluence (15-150 keV) : 7.69449e-08 ( -1.88364e-08 1.90062e-08 ) ergs/cm2
Time interval is from 0.308 sec. to 1.308 sec. Spectral model in the cutoff power-law: ------------------------------------------------------------ Parameters : value lower 90% higher 90% Photon index: -0.134342 ( -1.52891 2.21465 ) Epeak [keV] : 66.5915 ( -18.8571 1144.87 ) Norm@50keV : 4.24501E-02 ( -0.0424277 0.369418 ) ------------------------------------------------------------ #Fit statistic : Chi-Squared = 37.64 using 59 PHA bins. # Reduced chi-squared = 0.6721 for 56 degrees of freedom # Null hypothesis probability = 9.717642e-01 Photon flux (15-150 keV) in 1 sec: 1.00465 ( -0.264071 0.2678 ) ph/cm2/s Energy fluence (15-150 keV) : 7.3156e-08 ( -1.87396e-08 1.93479e-08 ) ergs/cm2
T90 = 31.552 sec. Hardness ratio (energy fluence ratio) = 1.12836612824
S(15-50 keV) = 3.073638e-07 S(50-150 keV) = 3.426408e-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.
IMX = 7.229298581073229E-01, IMY = -3.113819056099733E-01
Time interval of the image: -239.928000 -3.320000 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 186.8463 -62.6371 32.9 48.8 -142.7 -0.2274 -0.3 9.5 GX 301-2 244.9829 -15.6356 0.2 24.9 -29.5 10.7180 51.3 0.3 Sco X-1 256.1601 -37.7975 7.8 1.6 -94.4 0.3012 1.5 8.7 4U 1700-377 256.5615 -36.4144 4.4 1.8 -44.7 0.5433 2.6 6.1 GX 349+2 263.1551 -24.5866 0.0 13.7 21.5 0.0791 0.4 12.4 GX 1+4 264.5200 -44.3176 5.2 8.2 148.3 0.4449 2.2 12.4 4U 1735-44 268.2186 -1.3102 0.0 37.5 18.6 0.2256 0.8 12.4 SW J1753.5-0127 270.2054 -25.2156 4.1 16.1 44.9 0.6119 3.0 9.2 GX 5-1 270.2914 -25.7174 2.5 15.7 46.2 1.1888 5.9 1.7 GRS 1758-258 274.0212 -14.0358 1.4 27.5 37.0 2.1352 8.4 0.9 GX 17+2 276.0171 -30.3704 4.5 16.5 71.0 0.6185 2.6 4.8 H1820-303 285.1102 -24.9827 7.5 26.1 70.8 0.4917 1.5 5.5 HT1900.1-2455 263.1421 -33.8343 2.7 5.6 50.2 0.9069 4.3 7.6 GX 354-0 262.8872 -1.2749 2.7 36.6 9.9 1.1731 4.3 ------ UNKNOWN 224.0738 2.2309 3.4 50.8 -44.3 3.7459 3.4 ------ UNKNOWN 212.9280 -23.2788 2.0 41.1 -80.9 5.2480 5.9 ------ UNKNOWN 219.9854 -7.2574 3.1 46.0 -56.5 3.9976 3.7 ------ UNKNOWN
Time interval of the image: -3.320000 31.772590 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 186.6607 -62.8139 7.3 48.9 -142.9 0.2852 1.6 2.6 GX 301-2 244.9447 -15.6131 6.2 24.9 -29.5 -0.1377 -1.9 2.6 Sco X-1 256.0553 -37.6936 7.6 1.7 -90.6 -0.0918 -1.5 9.6 4U 1700-377 256.2496 -36.4550 17.1 1.9 -50.8 -0.0402 -0.7 9.2 GX 349+2 263.1508 -24.8864 5.5 13.4 21.8 0.1326 2.1 11.4 GX 1+4 264.7319 -44.3004 6.7 8.3 147.4 -0.1088 -1.7 9.0 4U 1735-44 268.2972 -1.4146 8.7 37.4 18.8 0.1437 1.3 4.8 SW J1753.5-0127 270.1236 -25.1008 17.0 16.1 44.4 -0.0487 -0.7 8.8 GX 5-1 270.4719 -25.8421 89.6 15.7 47.0 0.0091 0.1 10.9 GRS 1758-258 273.9328 -14.1884 4.5 27.3 37.0 -0.2058 -2.6 10.1 GX 17+2 276.0999 -30.3571 8.9 16.5 71.1 -0.0924 -1.3 9.1 H1820-303 284.8672 -24.9294 82.3 26.0 70.4 0.0128 0.1 9.2 HT1900.1-2455 263.0599 -33.6799 7.5 5.6 48.6 -0.0951 -1.5 9.9 GX 354-0 271.1752 -1.3560 1.4 38.2 23.3 0.9653 8.1 ------ UNKNOWN
Time interval of the image: 93.172590 962.171200 # RAcent DECcent POSerr Theta Phi PeakCts SNR AngSep Name # [deg] [deg] ['] [deg] [deg] ['] 244.9841 -15.6419 0.3 29.5 -134.7 31.7680 39.0 0.3 Sco X-1 254.4437 35.3688 2.9 39.9 -35.8 3.8617 4.0 1.7 Her X-1 256.1003 -37.9443 9.5 39.1 -175.4 1.0429 1.2 8.1 4U 1700-377 256.6319 -36.3219 0.0 37.5 -174.9 0.7656 0.9 11.3 GX 349+2 262.8818 -24.8677 15.8 24.8 -176.2 0.4176 0.7 10.1 GX 1+4 264.6653 -44.3404 4.1 43.4 172.4 -3.0739 -2.8 7.4 4U 1735-44 268.4857 -1.4937 4.4 2.7 -107.3 1.3623 2.6 7.5 SW J1753.5-0127 270.2991 -25.0920 3.4 23.7 167.6 2.1833 3.4 1.1 GX 5-1 270.2713 -25.7528 3.9 24.4 167.6 1.8583 3.0 1.8 GRS 1758-258 274.0056 -14.0202 0.9 13.0 153.2 6.4930 12.5 1.0 GX 17+2 275.9112 -30.3691 7.3 29.4 157.3 1.2048 1.6 0.7 H1820-303 285.0059 -25.0607 6.6 27.2 137.4 1.3491 1.8 8.6 HT1900.1-2455 288.7821 10.9502 0.6 21.4 40.2 11.8410 18.8 1.0 GRS 1915+105 299.6542 35.2001 2.6 45.2 19.0 5.7135 4.5 3.1 Cyg X-1 308.1082 40.9538 40.1 54.0 19.8 1.0799 0.3 0.1 Cyg X-3 262.9507 -33.8935 4.6 33.4 178.1 1.7258 2.5 4.0 GX 354-0 294.3553 -36.0184 2.5 40.8 136.5 6.3414 4.6 ------ UNKNOWN 300.2434 25.1251 3.6 38.7 30.5 3.2446 3.2 ------ UNKNOWN 281.3026 18.9931 2.5 22.7 11.3 2.3832 4.6 ------ UNKNOWN 267.9598 -26.3513 2.5 25.2 172.4 2.8222 4.6 ------ UNKNOWN 290.9669 51.3911 2.4 55.4 0.6 11.0561 4.8 ------ UNKNOWN UNKNOWN UNKNOWN