batgrbproduct analysis for trigger=984929

batgrbproduct Analysis for Trigger=984929

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Wed Sep  9 22:55:30 EDT 2020
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger984929
======================================================================

  Trigger: 00984929      Segment: 000

  BAT Trigger Time: 617744310.464   [s; MET]
      Trigger Stop: 617744318.656   [s; MET]
               UTC: 2020-07-29T19:38:05.095420    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 184.374725606312   Dec: 45.5823142434638  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.81
     Image Trigger?:     NO
     Rate S/N Ratio:     9.59166304662544  [ if not an image trigger ]
     Image S/N Ratio:    8.81

  Flight Position:   [ source = BAT ]
    RA: 184.374725606312   Dec: 45.5823142434638  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 184.360293791043   Dec: 45.5705349045416  [deg; J2000]  
        { 12h 17m 26.5s , +45d 34' 13.9" }
         +/- 2.31868852413339 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.27353682534939 [arcmin] (formal 1-sigma fit error)
    SNR: 9.14836544638276
 
  Angular difference between Flight and Ground position is 0.931057 arcmin
 
  Partial Coding Fraction: 0.4609375    [ including projection effects ]

  Duration
     T90: 122 +/- 34.2344855372474
        Measured from: 1.53600001335144
                   to: 123.536000013351     [s; relative to TRIGTIME]
     T50: 57 +/- 24.8243831746128
        Measured from: 7.53600001335144
                   to: 64.5360000133514     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 5.53600001335144     
                   to: 6.53600001335144     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.53600001335144     
                   to: 136.536000013351     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.288433   0.584691   0.903058   0.193098
           0.106651   0.111376   0.099071   0.087403 [error]
 Peak      0.026092   0.023619   0.035718   0.025011
           0.011558   0.011721   0.011197   0.009379 [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 1.07e-07 2.80e-07 5.92e-07 3.21e-06 1.59e-06 4.19e-06   erg/cm2
              Error 3.64e-08 5.78e-08 9.13e-08 1.16e-06 2.45e-07 1.19e-06   erg/cm2
Peak flux Power-law 1.26e-01 2.02e-01 2.45e-01 5.83e-01 7.40e-01 1.16e+00   ph/cm2/s
              Error 1.14e-01 1.14e-01 8.24e-02 4.42e-01 2.89e-01 4.23e-01   ph/cm2/s
 
Fluence   Cutoff-PL 7.94e-08 2.84e-07 6.54e-07 1.32e-06 1.55e-06 2.34e-06   erg/cm2
              Error 4.70e-08 6.59e-08 1.18e-07 1.54e-06 2.57e-07 1.56e-06   erg/cm2
Peak flux Cutoff-PL 1.13e-01 2.00e-01 2.54e-01 5.88e-01 7.32e-01 1.14e+00   ph/cm2/s
              Error 1.30e-01 1.60e-01 1.02e-01 5.54e-01 2.90e-01 5.25e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band -------- -------- -------- -------- -------- --------   ph/cm2/s
              Error -------- -------- -------- -------- -------- --------   ph/cm2/s
 
=== Time-averaged spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.923    0.269    -      -           1.05e-03 1.70e-04   41.610 57
CPL   0.001    1.332     136.0  -43.5      2.46e-03 4.27e-03   39.860 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.721    0.691    -      -           6.41e-03 2.72e-03   50.150 57
CPL   0.455    1.104     406.1    0.0      7.97e-03 6.99e-02   50.120 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: 54.336000 sec.
T50 in the 50-300 keV band: 28.288000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  136.000    0.536  136.536
T90   122.000    1.536  123.536
T50    57.000    7.536   64.536
Peak    1.000    5.536    6.536
  • 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
      184.3603    45.5705   0.0210    41.5424  -158.8771         1.5742161      9.148 TRIG_00984929                 
     
    Foreground time interval of the image:
      0.536  50.237 (delta_t =  49.701 [sec])
    Background time interval of the image:
    -239.464   0.536 (delta_t = 240.000 [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 8.192000
    

    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 8.192000
    

    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 8.192000
    

    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    0.536 sec. to  136.536 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.922876     ( -0.278402   0.259623 )
    Norm@50keV  : 1.05344E-03    ( -0.00017188   0.00016851 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   41.61     using 59 bins.
     Reduced chi-squared = 0.73
    # Null hypothesis probability of 9.37e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 136 sec: 0.120948 ( -0.019614  0.01984 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.59396e-06 ( -2.44535e-07  2.45155e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    0.536 sec. to  136.536 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 6.21513E-04     ( -1.6384   1.02511 )
    Epeak [keV] : 135.977      ( -48.9967 -135.976 )
    Norm@50keV  : 2.45608E-03    ( -0.00151618   0.0070187 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   39.86     using 59 bins.
     Reduced chi-squared = 0.711786
    # Null hypothesis probability of 9.49e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 136 sec: 0.115562 ( -0.0208783  0.021037 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.5485e-06 ( -2.59152e-07  2.55805e-07 ) ergs/cm2
     
    
    Band function
    Time interval is from    0.536 sec. to  136.536 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 24.6173  (-4.16  5.71339)
    R^2/D10^2   : 3.16048E-03  (-0.00150789   0.00255822)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   41.78     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.35e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.562e-08   1.605e-08
    25- 50  2.568e-07   6.854e-08
    50-150  1.156e-06   3.180e-07
    15-150  1.459e-06   3.410e-07
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-33.2589      -200)
    Norm        : 0.516748       (-0.0824098     0.0824098)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   57.53     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 4.56e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.749e-07   1.006e-07
    25- 50  3.365e-07   1.918e-07
    50-150  7.379e-07   4.172e-07
    15-150  1.249e-06   6.929e-07
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 6.18427        (-6.18783      -6.18783)
    R1^2/D10^2  : 7.62512E-02        (-0.0760397      -0.0760397)
    kT2 [keV]   : 27.8047        (-6.1695      -27.8088)
    R2^2/D10^2  : 2.04827E-03    (-0.00204715   0.00215102)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   39.52     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 9.43e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  9.023e-08   5.391e-08
    25- 50  2.690e-07   1.380e-07
    50-150  1.186e-06   6.239e-07
    15-150  1.545e-06   8.198e-07
    

    Peak spectrum fit

    Power-law model
    Time interval is from    5.536 sec. to    6.536 sec.
     
    Spectral model in power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.721122     ( -0.773142   0.609661 )
    Norm@50keV  : 6.41471E-03    ( -0.00285567   0.00258868 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   50.15     using 59 bins.
     Reduced chi-squared = 0.879825
    # Null hypothesis probability of 7.28e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 0.740310 ( -0.283578  0.29512 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.75711e-08 ( -2.61561e-08  2.61626e-08 ) ergs/cm2
     
    
    Cutoff power-law model
    Time interval is from    5.536 sec. to    6.536 sec.
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.454702     ( -2.66288   -0.454702 )
    Epeak [keV] : 406.066      ( -406.066 -406.066 )
    Norm@50keV  : 7.97030E-03    ( -0.00426102   0.135579 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   50.12     using 59 bins.
     Reduced chi-squared = 0.895
    # Null hypothesis probability of 6.96e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 1 sec: 0.731593 ( -0.290053  0.290277 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 7.75658e-08 ( -2.63115e-08  2.62205e-08 ) ergs/cm2
     
    
    Band function
    Time interval is from    5.536 sec. to    6.536 sec.
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    
    Single BB
     
    Spectral model blackbody:
    ------------------------------------------------------------
    Parameters  : value    Lower 90%  Upper 90%
    kT [keV]    : 31.9778  (-11.959  36.4646)
    R^2/D10^2   : 9.41875E-03  (-0.00941814   0.0298104)
    (R is the radius in km and D10 is the distance to the source in units of 10 kpc)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   50.90     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 7.02e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  1.448e-09   9.535e-10
    25- 50  9.158e-09   5.675e-09
    50-150  6.435e-08   3.864e-08
    15-150  7.495e-08   4.670e-08
    
    Thermal bremsstrahlung (OTTB)
     
     
    Spectral model: thermal bremsstrahlung
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT [keV]    : 200.000       (-92.8494      -200)
    Norm        : 3.23317       (-1.22842     1.22842)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   55.44     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 5.34e-01 with 57 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  8.061e-09   5.315e-09
    25- 50  1.551e-08   9.925e-09
    50-150  3.401e-08   2.097e-08
    15-150  5.757e-08   3.723e-08
    
    Double BB
     
     
    Spectral model: bbodyrad<1> + bbodyrad<2>
    ------------------------------------------------------------
    Parameters  : value         Lower 90%    Upper 90%
    kT1 [keV]   : 7.32957        (-7.29861      -7.29861)
    R1^2/D10^2  : 0.367164        (-0.370607      2.3836)
    kT2 [keV]   : 40.0427        (-40.0081      -40.0081)
    R2^2/D10^2  : 4.64358E-03    (-0.00465528   0.0250475)
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   49.92     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.69e-01 with 55 degrees of freedom
     
    Energy  Fluence     90% Error
    [keV]   [erg/cm2]   [erg/cm2]
    15- 25  4.275e-09   3.099e-09
    25- 50  1.151e-08   7.495e-09
    50-150  6.366e-08   3.783e-08
    15-150  7.944e-08   4.559e-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: 0.692412     ( -0.316879   0.283678 )
    Norm@50keV  : 1.93909E-03    ( -0.000376709   0.00036148 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   52.56     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.42e-01 with 57 degrees of freedom
     
    Photon flux (15-150 keV)    in 49.7 sec: 0.224275 ( -0.0391295  0.0399037 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.1804e-06 ( -1.81628e-07  1.81769e-07 ) ergs/cm2
     
    
    Cutoff power-law model
    Spectral model in the cutoff power-law:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    Photon index: 0.239812     ( -1.74501   0.656208 )
    Epeak [keV] : 259.583      ( -214.423 -214.423 )
    Norm@50keV  : 2.85717E-03    ( -0.00167816   0.00898415 )
    ------------------------------------------------------------
    #Fit statistic  : Chi-Squared                   51.90     using 59 bins.
     Reduced chi-squared = 
    # Null hypothesis probability of 6.31e-01 with 56 degrees of freedom
     
    Photon flux (15-150 keV)    in 49.7 sec: 0.218535 ( -0.039905  0.041308 ) ph/cm2/s
    Energy fluence (15-150 keV)             : 1.16697e-06 ( -1.85709e-07  1.86067e-07 ) ergs/cm2
     
    
    Band function
     
     
    Spectral model in the Band function:
    ------------------------------------------------------------
    Parameters  : value       lower 90%   higher 90%
    alpha       :    (     )
    beta        :     (     )
    Epeak [keV] :       (   )
    Norm@50keV   :     (     )
    ------------------------------------------------------------
     
    Photon flux (15-150 keV)    in  sec:  (    ) ph/cm2/s
    Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
     
    

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

    S(25-50 keV)  = 2.80e-07
    S(50-100 keV) = 5.92e-07
    

    T90 vs. Hardness ratio plot

    T90                                   = 122 sec.
    Hardness ratio (energy fluence ratio) = 2.11429
    

    Color vs. Color plot

    Count Ratio  (25-50 keV) / (15-25 keV) = 2.02713
    Count Ratio (50-100 keV) / (15-25 keV) = 3.13091
    

    Mask shadow pattern

    IMX = -8.265102105242641E-01, IMY = 3.193040653880231E-01
    

    TIME vs. PHA plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    TIME vs. DetID plot around the trigger time

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    100 us light curve (15-350 keV)

    Blue+Cyan dotted lines: Time interval of the scaled map
    From 0.000000 to 8.192000
    

    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:
    -239.464000 0.536000
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.6321  22.0326    0.9  47.9  -22.6   8.6647  12.7    1.1	Crab                          
     39.9577  34.6707    3.1  52.4   30.1   5.3551   3.7 ------	UNKNOWN                       
    230.0987  48.7078    2.8  55.6  163.9   7.3923   4.1 ------	UNKNOWN                       
     65.0791  20.7616    2.8  54.9   -2.3   3.3060   4.2 ------	UNKNOWN                       
    212.5579  38.6620    3.0  58.5 -177.2   7.1978   3.8 ------	UNKNOWN                       
     84.6986  26.3352    2.6  43.5  -22.2   2.1920   4.4 ------	UNKNOWN                       
    175.9560  41.0103    3.0  41.8 -147.4   2.1749   3.8 ------	UNKNOWN                       
    165.5198  32.7117    2.2  44.8 -130.8   4.4020   5.4 ------	UNKNOWN                       
    

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

    Time interval of the image:
    0.536000 50.236600
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
     83.5604  21.8872    5.1  48.0  -22.6  -0.5160  -2.3    8.6	Crab                          
    184.3603  45.5705    1.3  41.5 -158.9   1.5747   9.1 ------	UNKNOWN                       
     96.2691  31.9509    2.2  35.4  -35.3   0.7478   5.2 ------	UNKNOWN                       
    

    Post-slew image of 15-350 keV band

    Time interval of the image:
    123.636600 962.562500
     
    # RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
    #  [deg]    [deg]    ['] [deg]  [deg]                   [']
    230.2480  24.6030    2.2  42.2  116.3  20.6703   5.3 ------	UNKNOWN                       
    230.3736  46.1016    4.1  31.6   84.6   5.1286   2.9 ------	UNKNOWN                       
    165.2533  66.6332    3.1  23.3   -6.8   3.2313   3.7 ------	UNKNOWN                       
    182.8619  -9.1610    2.6  54.8 -165.7  15.1613   4.5 ------	UNKNOWN                       
    172.0530  -0.0563    3.1  47.0 -150.6   8.8938   3.8 ------	UNKNOWN                       
    
    Plot creation:
    Mon Nov 16 12:39:51 EST 2020