batgrbproduct analysis for trigger=1054681

batgrbproduct Analysis for Trigger=1054681

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Jun 11 11:45:37 EDT 2021
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1054681/batgroup_hand_proc
======================================================================

  Trigger: 01054681      Segment: 000

  BAT Trigger Time: 645047514.688   [s; MET]
      Trigger Stop: 645047515.712   [s; MET]
               UTC: 2021-06-10T19:51:27.514180    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 243.938816073423   Dec: 14.3913470955268  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.54
     Image Trigger?:     NO
     Rate S/N Ratio:     46.5295604965274  [ if not an image trigger ]
     Image S/N Ratio:    10.54

  Flight Position:   [ source = BAT ]
    RA: 243.938816073423   Dec: 14.3913470955268  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 243.928518473746   Dec: 14.3984723907893  [deg; J2000]  
        { 16h 15m 42.8s , +14d 23' 54.5" }
         +/- 0.814370488769121 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.397282721599225 [arcmin] (formal 1-sigma fit error)
    SNR: 40.7864103070031
 
  Angular difference between Flight and Ground position is 0.735475 arcmin
 
  Partial Coding Fraction: 0.2460938    [ including projection effects ]

  Duration
     T90: 69.3839999437332 +/- 2.53414757519244
        Measured from: -0.663999915122986
                   to: 68.7200000286102     [s; relative to TRIGTIME]
     T50: 25.4399999380112 +/- 0.622009678277772
        Measured from: 8.50400006771088
                   to: 33.944000005722     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.94800007343292     
                   to: 8.94800007343292     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -12.039999961853     
                   to: 142.472000002861     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     9.296134  16.739654  17.316489   5.827818
           0.134215   0.158668   0.162283   0.124557 [error]
 Peak      0.237698   0.495221   0.701118   0.350177
           0.020299   0.027480   0.032357   0.026318 [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 3.35e-06 7.54e-06 1.34e-05 5.58e-05 3.65e-05 8.01e-05   erg/cm2
              Error 1.14e-07 1.52e-07 2.00e-07 1.98e-06 5.28e-07 2.01e-06   erg/cm2
Peak flux Power-law 2.17e+00 3.60e+00 4.54e+00 1.14e+01 1.35e+01 2.17e+01   ph/cm2/s
              Error 2.63e-01 2.65e-01 2.44e-01 1.37e+00 7.20e-01 1.43e+00   ph/cm2/s
 
Fluence   Cutoff-PL 3.14e-06 7.56e-06 1.37e-05 4.56e-05 3.63e-05 7.00e-05   erg/cm2
              Error 1.59e-07 1.55e-07 2.68e-07 5.20e-06 5.39e-07 5.16e-06   erg/cm2
Peak flux Cutoff-PL 2.17e+00 3.61e+00 4.54e+00 1.13e+01 1.35e+01 2.16e+01   ph/cm2/s
              Error 2.92e-01 2.62e-01 2.76e-01 2.25e+00 7.19e-01 2.27e+00   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    1.172    0.027    -      -           2.31e-02 3.57e-04   36.540  0
CPL   0.978    0.111     339.3  218.6      2.75e-02 2.70e-03   27.430  1
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.665    0.095    -      -           1.16e-01 6.52e-03   70.060  0
CPL   0.658    0.095    9999.4    0.0      1.17e-01 2.36e-02    0.098  0
 
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: 59.840000 sec.
T50 in the 50-300 keV band: 19.072000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  154.512  -12.040  142.472
T90    69.384   -0.664   68.720
T50    25.440    8.504   33.944
Peak    1.000    7.948    8.948

Image

Pre-slew 15-350 keV image (Event data; bkg subtracted)

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
  243.9285 +14.3985 0.0047   38.3   43.0      19.8607    40.8  TRIG_01054681       
------------------------------------------
 
Foreground time interval of the image:
-12.040  13.613 (delta_t =  25.653 [sec])
Background time interval of the image:
-239.688 -12.040 (delta_t = 227.648 [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

8 ms binning

From T100_start-3 s to T100_start+3 s

2 ms binning

From T100_start-1 s to T100_start+1 s

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

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

Spectra

Notes:

Time averaged spectrum fit using the pre-slew DRM

Power-law model
Time interval is from  -12.040 sec. to  142.472 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.17202     ( -0.0268321   0.0267324 )
Norm@50keV  : 2.30972E-02    ( -0.000356951   0.000356274 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   36.54     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.84e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 154.5 sec: 2.70094 ( -0.0459365  0.0460543 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.64965e-05 ( -5.27761e-07  5.27798e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from  -12.040 sec. to  142.472 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.978176     ( -0.112588   0.110085 )
Epeak [keV] : 339.269      ( -99.6395 337.656 )
Norm@50keV  : 2.75054E-02    ( -0.00254704   0.00286078 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   27.43     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.00e+00 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 154.5 sec: 2.66334 ( -0.04982  0.05008 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.63386e-05 ( -5.3936e-07  5.38896e-07 ) ergs/cm2
 
Band function
Time interval is from  -12.040 sec. to  142.472 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.607735   ( -0.462844   0.718883 )
beta        : -1.23596    ( 1.23601   0.0470323 )
Epeak [keV] : 111.673      ( -53.0126 408.611 )
Norm@50keV   : 4.46336E-02    ( -0.0187124   0.0855855 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 154.5 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]    : 23.0737  (  )
R^2/D10^2   : 7.81222E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  806.42     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.48e-133 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.163e-06   3.731e-08
25- 50  6.320e-06   1.599e-07
50-150  2.513e-05   4.635e-07
15-150  3.261e-05   5.021e-07
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 12.0281       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  758.51     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.07e-123 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.627e-06   7.802e-08
25- 50  8.902e-06   1.406e-07
50-150  1.952e-05   3.244e-07
15-150  3.305e-05   5.562e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 9.41041        (-0.609254      0.639784)
R1^2/D10^2  : 0.817564        (-0.148203      0.191476)
kT2 [keV]   : 36.7859        (-2.13849      2.59493)
R2^2/D10^2  : 1.44849E-02    (-0.00289914   0.00321523)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   29.43     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.98e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.639e-06   1.537e-07
25- 50  7.818e-06   2.318e-07
50-150  2.586e-05   6.103e-07
15-150  3.632e-05   9.038e-07

Peak spectrum fit

Power-law model
Time interval is from    7.948 sec. to    8.948 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.665326     ( -0.0955809   0.0936348 )
Norm@50keV  : 0.116409    ( -0.00654709   0.00649662 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   70.06     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.15e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 13.4961 ( -0.72014  0.720684 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.44358e-06 ( -8.20189e-08  8.2162e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    7.948 sec. to    8.948 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.658441     ( -0.0974872   0.0932169 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 0.117352    ( -0.00621133   0.0409637 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   70.07     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.78e-02 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 13.4981 ( -0.7244  0.714 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.4436e-06 ( 0  0 ) ergs/cm2
 
Band function
Time interval is from    7.948 sec. to    8.948 sec.
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.762266   ( 0.762246   0.762246 )
beta        : -0.665326    ( -0.0936062   0.0956289 )
Epeak [keV] : 19.0468      ( -19.047 -19.047 )
Norm@50keV   : 0.160182    ( -0.0502153   1.53532e+06 )
------------------------------------------------------------
 
Photon flux (15-150 keV)    in 1 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]    : 28.6411  (  )
R^2/D10^2   : 0.240195  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  123.84     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.43e-07 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.170e-08   3.665e-09
25- 50  1.918e-07   1.640e-08
50-150  1.130e-06   8.550e-08
15-150  1.353e-06   8.800e-08
Thermal bremsstrahlung (OTTB)
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 49.1917       (     )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                  294.42     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.04e-33 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.225e-07   7.600e-09
25- 50  2.356e-07   2.010e-08
50-150  5.168e-07   1.151e-07
15-150  8.749e-07   1.539e-07
Double BB
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.6520        (-3.28031      3.06093)
R1^2/D10^2  : 1.44730        (-0.614554      1.44019)
kT2 [keV]   : 68.5691        (-26.8493      -71.9493)
R2^2/D10^2  : 2.04360E-02    (-0.0101615   0.0411632)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   70.83     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 7.40e-02 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.725e-08   1.750e-08
25- 50  2.266e-07   6.360e-08
50-150  1.152e-06   5.000e-07
15-150  1.436e-06   5.952e-07
Plot creation:
Fri Jun 11 13:36:44 EDT 2021