Analysis Summary

Notes:

ADD SPECIAL NOTE BY HAND
==========================================================================
           BAT GROUND-DETECTED GRB DATA PROCESSING REPORT                 
    Process Script Ver: batgrbproduct v2.46
    Process Start Time: Thu Dec 17 14:03:42 EST 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger576277
======================================================================

  Trigger: 00576277      Segment: 000

  BAT Trigger Time: 404912024.0
               UTC: 2013-10-31T11:33:32.783   [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: 29.618   Dec: -1.603  [deg; J2000]
 
  Refined Position:   [ source = BAT pre-slew image ]
    RA: 29.6249539447   Dec: -1.6163375233  [deg; J2000]
        { 01h 58m 30.0s , -1d -36' -58.8" }
        +/- 2.5591129053 [arcmin] (estimated 90% radius based on SNR)
    SNR: 7.94676322804
 
 
  Angular difference between the analysis and refined position is 0.902414 arcmin
 
  Partial Coding Fraction: 0.02050781    [ including projection effects ]

  Duration
     T90: 6.40000003576279 +/- 1.6
        Measured from: 0
                   to: 6.4     [s; relative to TRIGTIME]
     T50: 3.19999998807907 +/- 1.6
        Measured from: 1.6
                   to: 4.8     [s; relative to TRIGTIME]
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100    6.400    0.000    6.400
T90     6.400    0.000    6.400
T50     3.200    1.600    4.800
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: 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
  • Special notes of this burst




    Image

    15.0-350.0 keV image (Event data with DETECTION mask)

    #RAcent DECcent POSerr Theta  Phi  Peak_Cts  SNR Name
    29.625 -1.616 0.024 44.632 107.014 2.680 7.947 TRIG_00576277
     
    Image time interval: -1.783 to 8.060 [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.

    Best duration plot

    Full-time range; 1 s binning

    Bokeh Plot

    Other quick-look light curves:




    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Multiple GTIs in the spectrum
    tstart tstop
    Photon index:       (       )
    
    Cutoff power-law model
    Multiple GTIs in the spectrum
    tstart tstop
    Photon index:       (       )
    

    1-s peak spectrum fit

    Power-law model
    Time interval is from   -1.783 sec. to    8.060 sec.
    Photon index:       (       )
    
    Cutoff power-law model
    Time interval is from   -1.783 sec. to    8.060 sec.
    Photon index:       (       )
    

    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 (with DETECTION mask)

    IMX = -0.288882763672, IMY = -0.944038559552
    

    Spacecraft aspect plot

    Bright source in the event data image

    Event data image of 15-350 keV band

    Time interval of the image:
    -1.783000 8.059700
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    299.6018  35.2443    6.8  58.9  -22.6   0.2811   1.7    2.6	Cyg X-1                       
    308.0066  40.9286    5.3  57.4  -12.5   0.2759   2.2    4.9	Cyg X-3                       
    326.2757  38.3872    5.2  47.1    0.1  -0.1436  -2.2    6.3	Cyg X-2                       
     29.6251  -1.6164    1.5  44.6  107.0   2.6795   7.7 ------	UNKNOWN                       
     12.9509  20.1511    2.1  37.5   66.4   0.4039   5.6 ------	UNKNOWN                       
    
    Webpage updated on:
    Thu Dec 17 14:58:02 EST 2015