batgrbproduct Analysis for Trigger=701503

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.46
    Process Start Time (local time): Fri Jul 15 14:18:29 EDT 2016
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger701503
======================================================================

  Trigger: 00701503      Segment: 000

  BAT Trigger Time: 488587247.936   [s; MET]
      Trigger Stop: 488587248.96   [s; MET]
               UTC: 2016-06-25T22:40:31.466540    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 176.936915418812   Dec: -65.1138111609725  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.86
     Image Trigger?:     NO
     Rate S/N Ratio:     15.3622914957372  [ if not an image trigger ]
     Image S/N Ratio:    8.86

  Flight Position:   [ source = BAT ]
    RA: 176.936915418812   Dec: -65.1138111609725  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 176.938977169425   Dec: -65.1419065043362  [deg; J2000]  
        { 11h 47m 45.4s , -65d 08' 30.9" }
         +/- 0.798197129754722 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.195796794885138 [arcmin] (formal 1-sigma fit error)
    SNR: 41.9721296814664
 
  Angular difference between Flight and Ground position is 1.686523 arcmin
 
  Partial Coding Fraction: 0.5703125    [ including projection effects ]

  Duration
     T90: 53.9199999570847 +/- 3.0991353106272
        Measured from: -9.33200001716614
                   to: 44.5879999399185     [s; relative to TRIGTIME]
     T50: 31.9519999027252 +/- 0.792131237689915
        Measured from: 2.45600003004074
                   to: 34.407999932766     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 35.0720000267029     
                   to: 36.0720000267029     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.0360000133514     
                   to: 47.4120000004768     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     2.276958   2.376192   1.161156   0.254559
           0.060521   0.062318   0.053674   0.045919 [error]
 Peak      0.116273   0.134631   0.070410   0.016241
           0.009058   0.009409   0.007885   0.005802 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
=== 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   Power-law 7.93e-07 1.02e-06 9.62e-07 1.60e-06 3.30e-06 4.37e-06   erg/cm2
              Error 4.89e-08 3.68e-08 5.56e-08 1.96e-07 1.26e-07 2.42e-07   erg/cm2
Peak flux Power-law 1.31e+00 1.00e+00 5.12e-01 3.75e-01 3.00e+00 3.20e+00   ph/cm2/s
              Error 1.60e-01 8.14e-02 6.48e-02 9.13e-02 2.47e-01 2.60e-01   ph/cm2/s
 
Fluence   Cutoff-PL -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux Cutoff-PL 1.27e+00 1.04e+00 5.15e-01 2.39e-01 2.97e+00 3.06e+00   ph/cm2/s
              Error 1.80e-01 1.06e-01 6.91e-02 1.49e-01 2.54e-01 3.22e-01   ph/cm2/s
 
Fluence        Band 7.87e-07 1.03e-06 9.49e-07 1.23e-06 1.11e-06 9.87e-07   erg/cm2
              Error 3.51e-08 3.90e-08 4.02e-08 -------- -------- --------   erg/cm2
Peak flux      Band 1.21e+00 1.09e+00 7.77e-01 3.42e-02 3.00e+00 1.72e+00   ph/cm2/s
              Error 1.94e-01 1.19e-01 -------- -------- 2.47e-01 --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    2.086    0.074    -      -           5.70e-03 2.34e-04   37.660 57
CPL   1.917    0.242      22.7   24.1      7.01e-03 0.00e+00   36.670 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.970    0.148    -      -           2.03e-02 1.95e-03   53.890 57
CPL   1.633    0.596      47.7    0.0      3.14e-02 0.00e+00   52.850 56
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^-{Ph_index} (minus sign is not included in the 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 PL model and at 1 keV in CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedom
 
=== T90/T50 calculation in the 50-300 keV band (BATSE band) using 64 ms lc ===
 
T90 in the 50-300 keV band: 53.440000 sec.
T50 in the 50-300 keV band: 31.936000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   62.448  -15.036   47.412
T90    53.920   -9.332   44.588
T50    31.952    2.456   34.408
Peak    1.000   35.072   36.072
  • Click here for the BAT GCN circular template
  • Estimated redshift from machine learning (Ukwatta et al. 2016) - may take a few minute to calcaulte

    Image

    Pre-slew 15.0-350.0 keV image (Event data)

    #   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
      176.9390   -65.1419   0.0046    32.6557    26.2261         6.2026132     41.972 TRIG_00701503                 
     
    Foreground time interval of the image:
    -15.036  47.412 (delta_t =  62.448 [sec])
    Background time interval of the image:
    -223.635 -15.036 (delta_t = 208.599 [sec])
    

    Lightcurves

    Notes:

    1 s binning

    From T0-310 s to T0+310 s
    From T100_start - 20 s to T100_end + 30 s
    Full time interval

    64 ms binning

    Full time interval
    From T100_start to T100_end
    From T0-5 sec to T0+5 sec

    16 ms binning

    From T100_start-5 s to T100_start+5 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    8 ms binning

    From T100_start-3 s to T100_start+3 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    2 ms binning

    From T100_start-1 s to T100_start+1 s
    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    SN=5 or 10 sec. binning (whichever binning is satisfied first)

    SN=5 or 10 sec. binning (T < 200 sec)

    Quad-rate summed light curves (from T0-300s to T0+1000s)

    Spectral Evolution

    Spectra

    Notes:

    Time averaged spectrum fit using the average DRM

    Power-law model
    Time interval is from  -15.036 sec. to   47.412 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.08572     ( -0.0738729   0.0749813 )
    Norm@50keV  : 5.70478E-03    ( -0.000234604   0.000232899 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          37.66 using 59 PHA bins.
    # Reduced chi-squared =         0.6607 for     57 degrees of freedom 
    # Null hypothesis probability =   9.775503e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.891310 ( -0.034842  0.034995 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.30623e-06 ( -1.25676e-07  1.26208e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from  -15.036 sec. to   47.412 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.91665     ( -0.308917   0.17478 )
    Epeak [keV] : 22.7086      ( -20.9684 27.2246 )
    Norm@50keV  : 7.00540E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          36.67 using 59 PHA bins.
    # Reduced chi-squared =         0.6548 for     56 degrees of freedom 
    # Null hypothesis probability =   9.787289e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.879768 ( -0.039735  0.037141 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Band function
    Time interval is from  -15.036 sec. to   47.412 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.91648   ( -6.19009   0.0910079 )
    beta        : -10.00000    ( 10   2.84217e-14 )
    Epeak [keV] : 22.7321      ( -12.2709 17.5023 )
    Norm@50keV   : 7.00463E-03    ( -0.000249766   0.00312224 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          36.67 using 59 PHA bins.
    # Reduced chi-squared =         0.6667 for     55 degrees of freedom 
    # Null hypothesis probability =   9.729632e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.868543 ( -0.042115  0.041726 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.11097e-06 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 10.6800  (  )
    R^2/D10^2   : 0.293940  (   )
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =         202.31 using 59 PHA bins.
    # Reduced chi-squared =         3.5492 for     57 degrees of freedom 
    # Null hypothesis probability =   3.833682e-18
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.347e-07   2.767e-08
    25- 50  1.183e-06   5.058e-08
    50-150  7.445e-07   7.432e-08
    15-150  2.362e-06   9.555e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 65.7358       (-7.2263      8.64502)
    Norm        : 4.31756       (-0.294238     0.321034)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.93 using 59 PHA bins.
    # Reduced chi-squared =         0.8057 for     57 degrees of freedom 
    # Null hypothesis probability =   8.530168e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.867e-07   3.778e-08
    25- 50  1.074e-06   4.090e-08
    50-150  1.315e-06   1.168e-07
    15-150  3.075e-06   1.261e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.56355        (-0.771257      0.77174)
    R1^2/D10^2  : 1.50914        (-0.492896      0.887411)
    kT2 [keV]   : 23.1374        (-3.7305      5.49061)
    R2^2/D10^2  : 1.01523E-02    (-0.00553982   0.0104367)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          45.42 using 59 PHA bins.
    # Reduced chi-squared =         0.8258 for     55 degrees of freedom 
    # Null hypothesis probability =   8.181600e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  6.684e-07   5.880e-08
    25- 50  1.065e-06   8.212e-08
    50-150  1.430e-06   2.676e-07
    15-150  3.164e-06   3.307e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from   35.072 sec. to   36.072 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.97037     ( -0.145685   0.151224 )
    Norm@50keV  : 2.02823E-02    ( -0.00197016   0.00193653 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          53.89 using 59 PHA bins.
    # Reduced chi-squared =         0.9455 for     57 degrees of freedom 
    # Null hypothesis probability =   5.923430e-01
     
    Photon flux (15-150 keV)    in 1 sec: 3.00186 ( -0.24693  0.24711 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.86819e-07 ( -1.72994e-08  1.74865e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from   35.072 sec. to   36.072 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.63316     ( -0.638772   0.55225 )
    Epeak [keV] : 47.6538      (   )
    Norm@50keV  : 3.13839E-02    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          52.85 using 59 PHA bins.
    # Reduced chi-squared =         0.9437 for     56 degrees of freedom 
    # Null hypothesis probability =   5.949192e-01
     
    Photon flux (15-150 keV)    in 1 sec: 2.96580 ( -0.25431  0.25412 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Band function
    Time interval is from   35.072 sec. to   36.072 sec.
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : 8.54025E-02   ( -2.33575   -0.0825126 )
    beta        : -2.17214    ( 2.1706   0.247027 )
    Epeak [keV] : 30.4427      ( -11.4207 32.8635 )
    Norm@50keV   : 0.507089    ( -0.499913   2185.05 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.73 using 59 PHA bins.
    # Reduced chi-squared =         0.9223 for     55 degrees of freedom 
    # Null hypothesis probability =   6.384352e-01
     
    Photon flux (15-150 keV)    in 1 sec: 3.00186 ( -0.24693  0.24711 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.17117e-14 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 9.94620  (-1.00509  1.15581)
    R^2/D10^2   : 1.40808  (-0.484973   0.721007)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          88.46 using 59 PHA bins.
    # Reduced chi-squared =          1.552 for     57 degrees of freedom 
    # Null hypothesis probability =   4.774733e-03
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  2.832e-08   4.190e-09
    25- 50  6.987e-08   6.585e-09
    50-150  3.590e-08   8.585e-09
    15-150  1.341e-07   1.390e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 72.8751       (-16.6204      24.865)
    Norm        : 14.5073       (-1.8437     2.1763)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          53.53 using 59 PHA bins.
    # Reduced chi-squared =         0.9391 for     57 degrees of freedom 
    # Null hypothesis probability =   6.061812e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.737e-08   4.295e-09
    25- 50  6.009e-08   4.830e-09
    50-150  7.949e-08   1.700e-08
    15-150  1.770e-07   1.940e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.55926        (-1.20554      1.26678)
    R1^2/D10^2  : 5.36967        (-2.46255      3.43071)
    kT2 [keV]   : 24.0944        (-6.27903      13.9746)
    R2^2/D10^2  : 3.21066E-02    (-0.0256185   0.0754936)
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          50.71 using 59 PHA bins.
    # Reduced chi-squared =         0.9220 for     55 degrees of freedom 
    # Null hypothesis probability =   6.390849e-01
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  3.781e-08   1.123e-08
    25- 50  5.990e-08   1.487e-08
    50-150  8.483e-08   4.267e-08
    15-150  1.826e-07   5.978e-08
    

    Pre-slew spectrum (Pre-slew PHA with pre-slew DRM)

    Power-law model
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 2.08572     ( -0.0738729   0.0749813 )
    Norm@50keV  : 5.70478E-03    ( -0.000234604   0.000232899 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          37.66 using 59 PHA bins.
    # Reduced chi-squared =         0.6607 for     57 degrees of freedom 
    # Null hypothesis probability =   9.775503e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.891239 ( -0.0348362  0.0349877 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.30564e-06 ( -1.25747e-07  1.26191e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 1.91681     ( -0.309079   0.175064 )
    Epeak [keV] : 22.6857      ( -20.9439 27.2498 )
    Norm@50keV  : 7.00399E-03    (     )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          36.67 using 59 PHA bins.
    # Reduced chi-squared =         0.6548 for     56 degrees of freedom 
    # Null hypothesis probability =   9.787289e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.879518 ( -0.03969  0.039765 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 3.2514e-06 ( -1.56687e-07  1.53271e-07 ) ergs/cm2
     
    
    Band function
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       : -1.91648   ( -6.19009   0.0910079 )
    beta        : -10.00000    ( 10   20 )
    Epeak [keV] : 22.7321      ( -12.2708 17.5023 )
    Norm@50keV   : 7.00463E-03    ( -0.000249766   0.00312224 )
    ------------------------------------------------------------
    #Fit statistic : Chi-Squared =          36.67 using 59 PHA bins.
    # Reduced chi-squared =         0.6667 for     55 degrees of freedom 
    # Null hypothesis probability =   9.729632e-01
     
    Photon flux (15-150 keV)    in 62.45 sec: 0.868543 ( -0.042115  0.041726 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.11097e-06 ( 0  0 ) ergs/cm2
     
    

    S(25-50 keV) vs. S(50-100 keV) plot

    S(25-50 keV)  = 1.02e-06
    S(50-100 keV) = 9.62e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 53.9199999570847 sec.
    Hardness ratio (energy fluence ratio) = 0.943137
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 1.04358
    Count Ratio (50-100 keV) / (15-25 keV) = 0.509959
    

    Mask shadow pattern

    IMX = 5.749219583029950E-01, IMY = -2.832223970030819E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 1.024000
    

    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:
    -223.635410 -15.036000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.6279 -40.5209    4.4  39.0  -32.7   0.7680   2.6    5.0	Vela X-1                      
    170.5794 -60.6355    6.4  34.2   16.9   0.4394   1.8    7.8	Cen X-3                       
    186.6440 -62.7894    3.7  37.1   29.6   0.9524   3.1    1.2	GX 301-2                      
     38.3719 -29.7494    2.7  47.4 -160.9   1.6146   4.2 ------	UNKNOWN                       
     37.1204 -21.0731    3.2  55.9 -158.6   3.4513   3.6 ------	UNKNOWN                       
    

    Pre-slew background subtracted image of 15-350 keV band

    Time interval of the image:
    -15.036000 47.412000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    135.5975 -40.3913    0.0  39.2  -32.8  -0.1867  -1.2   10.3	Vela X-1                      
    170.6001 -60.6056    7.7  34.3   16.9  -0.2163  -1.5    8.4	Cen X-3                       
    186.5725 -62.7819    7.5  37.1   29.5  -0.2734  -1.5    2.4	GX 301-2                      
    298.8094 -68.0625    2.4  40.7   96.2   2.2284   4.7 ------	UNKNOWN                       
    184.5102 -47.8549    2.0  49.3   16.7   1.6375   5.8 ------	UNKNOWN                       
    176.9390 -65.1419    0.3  32.7   26.2   6.2028  42.0 ------	UNKNOWN                       
     16.5637 -45.1538    2.6  40.8  167.0   0.8387   4.5 ------	UNKNOWN                       
    101.1241 -66.0845    2.8   7.0  -31.1   0.4001   4.1 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
     
    
    Plot creation:
    Fri Jul 15 14:46:11 EDT 2016