batgrbproduct analysis for trigger=1061223

batgrbproduct Analysis for Trigger=1061223

Analysis Summary

Notes:

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Fri Jul 23 15:10:49 EDT 2021
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/prebascript/trigger1061223/batgroup_hand_proc
======================================================================

  Trigger: 01061223      Segment: 000

  BAT Trigger Time: 648680109.44   [s; MET]
      Trigger Stop: 648680110.464   [s; MET]
               UTC: 2021-07-22T20:54:42.023740    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 27.0233922800566   Dec: -6.35436196120301  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.11
     Image Trigger?:     NO
     Rate S/N Ratio:     17.1172427686237  [ if not an image trigger ]
     Image S/N Ratio:    9.11

  Flight Position:   [ source = BAT ]
    RA: 27.0233922800566   Dec: -6.35436196120301  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 27.0307024613127   Dec: -6.34720816819843  [deg; J2000]  
        { 01h 48m 07.4s , -06d 20' 49.9" }
         +/- 1.15498673382668 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.441155837178855 [arcmin] (formal 1-sigma fit error)
    SNR: 24.7584054902602
 
  Angular difference between Flight and Ground position is 0.611769 arcmin
 
  Partial Coding Fraction: 0.4335938    [ including projection effects ]

  Duration
     T90: 50.2039999961853 +/- 10.5383053075307
        Measured from: -2.19600009918213
                   to: 48.0079998970032     [s; relative to TRIGTIME]
     T50: 15.691999912262 +/- 4.34619642913954
        Measured from: 1.07999992370605
                   to: 16.771999835968     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 1     
                   to: 2     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -4.40400004386902     
                   to: 59.5919998884201     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.983806   1.383867   1.153502   0.293659
           0.080542   0.085029   0.076557   0.066799 [error]
 Peak      0.058315   0.095743   0.088971   0.028062
           0.012788   0.014390   0.013523   0.010439 [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 3.80e-07 6.49e-07 8.45e-07 2.23e-06 2.48e-06 4.10e-06   erg/cm2
              Error 5.66e-08 5.41e-08 7.43e-08 4.64e-07 1.80e-07 4.95e-07   erg/cm2
Peak flux Power-law 7.84e-01 7.50e-01 5.00e-01 5.19e-01 2.24e+00 2.55e+00   ph/cm2/s
              Error 3.01e-01 1.63e-01 1.07e-01 2.52e-01 4.60e-01 4.56e-01   ph/cm2/s
 
Fluence   Cutoff-PL 3.13e-07 6.60e-07 8.90e-07 1.11e-06 2.37e-06 2.97e-06   erg/cm2
              Error 7.84e-08 5.70e-08 8.77e-08 7.87e-07 2.10e-07 8.25e-07   erg/cm2
Peak flux Cutoff-PL 7.12e-01 7.51e-01 5.15e-01 4.05e-01 2.18e+00 2.38e+00   ph/cm2/s
              Error 3.78e-01 1.67e-01 1.28e-01 3.95e-01 5.20e-01 6.35e-01   ph/cm2/s
 
Fluence        Band 3.13e-07 6.55e-07 8.87e-07 1.17e-06 2.38e-06 3.03e-06   erg/cm2
              Error 7.70e-08 -------- -------- -------- -------- --------   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    1.619    0.142    -      -           4.16e-03 2.92e-04   61.030 53
CPL   0.953    0.684      90.1  277.5      8.05e-03 6.04e-03   57.950 52
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.585    0.362    -      -           1.75e-02 3.10e-03   48.950 53
CPL   1.283    1.497     140.4    0.0      2.35e-02 6.40e-02   48.830 52
 
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: 24.576000 sec.
T50 in the 50-300 keV band: 10.816000 sec.
 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   63.996   -4.404   59.592
T90    50.204   -2.196   48.008
T50    15.692    1.080   16.772
Peak    1.000    1.000    2.000

Image

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

#   RAcent  DECcent POSerr  Theta    Phi     Peak Cts     SNR  Name
   27.0307  -6.3472 0.0078   41.5   -0.5       2.8098    24.8  TRIG_01061223       
------------------------------------------
 
Foreground time interval of the image:
 -4.404  13.861 (delta_t =  18.265 [sec])
Background time interval of the image:
-239.440  -4.404 (delta_t = 235.036 [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   -4.404 sec. to   59.592 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.61940     ( -0.140424   0.143134 )
Norm@50keV  : 4.15870E-03    ( -0.000291886   0.00029186 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.03 using 55 PHA bins.
# Reduced chi-squared =          1.152 for     53 degrees of freedom 
# Null hypothesis probability =   2.095748e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.537674 ( -0.0438308  0.0446864 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.48346e-06 ( -1.79503e-07  1.80058e-07 ) ergs/cm2
 
Cutoff power-law model
Time interval is from   -4.404 sec. to   59.592 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.952765     ( -0.724275   0.64373 )
Epeak [keV] : 90.1342      ( -21.2487 533.677 )
Norm@50keV  : 8.04592E-03    ( -0.00374044   0.00834317 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.95 using 55 PHA bins.
# Reduced chi-squared =          1.114 for     52 degrees of freedom 
# Null hypothesis probability =   2.651474e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.502659 ( -0.051251  0.054309 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.3735e-06 ( -2.11181e-07  2.0969e-07 ) ergs/cm2
 
Band function
Time interval is from   -4.404 sec. to   59.592 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.952698   ( -0.548702   0.788117 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 90.1157      ( -17.9861 527.005 )
Norm@50keV   : 8.04592E-03    ( -0.00374029   0.00834848 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          57.95 using 55 PHA bins.
# Reduced chi-squared =          1.136 for     51 degrees of freedom 
# Null hypothesis probability =   2.343248e-01
 
Photon flux (15-150 keV)    in 64 sec: 0.504326 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.38227e-06 ( 0  0 ) ergs/cm2
 
Single BB
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 16.3393  (-1.31705  1.45344)
R^2/D10^2   : 4.20980E-02  (-0.0111031   0.0148538)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          81.38 using 55 PHA bins.
# Reduced chi-squared =          1.536 for     53 degrees of freedom 
# Null hypothesis probability =   7.344230e-03
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.480e-07   2.099e-08
25- 50  6.339e-07   7.184e-08
50-150  1.192e-06   1.530e-07
15-150  1.974e-06   1.677e-07
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 198.408       (-56.1386      -198.462)
Norm        : 2.11613       (-0.139483     0.155623)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.375e-07   2.976e-08
25- 50  6.488e-07   9.651e-08
50-150  1.421e-06   4.903e-07
15-150  2.407e-06   5.936e-07
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.29639        (-1.76923      2.28454)
R1^2/D10^2  : 0.684251        (-0.429977      1.70949)
kT2 [keV]   : 22.0366        (-3.51509      6.66244)
R2^2/D10^2  : 1.22316E-02    (-0.00792842   0.0121838)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.167e-07   1.311e-07
25- 50  6.445e-07   1.784e-07
50-150  1.380e-06   3.926e-07
15-150  2.342e-06   5.248e-07

Peak spectrum fit

Power-law model
Time interval is from    1.000 sec. to    2.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.58526     ( -0.351833   0.372888 )
Norm@50keV  : 1.75470E-02    ( -0.00309875   0.0030981 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.95 using 55 PHA bins.
# Reduced chi-squared =         0.9235 for     53 degrees of freedom 
# Null hypothesis probability =   6.326678e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.24465 ( -0.449691  0.470189 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.64403e-07 ( -3.00083e-08  3.02531e-08 ) ergs/cm2
 
Cutoff power-law model
Time interval is from    1.000 sec. to    2.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.28284     ( -1.76657   1.22827 )
Epeak [keV] : 140.392      ( -140.266 -140.266 )
Norm@50keV  : 2.35205E-02    ( -0.0235315   0.104438 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.83 using 55 PHA bins.
# Reduced chi-squared =         0.9390 for     52 degrees of freedom 
# Null hypothesis probability =   5.994228e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.17636 ( -0.51784  0.52207 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.61546e-07 ( -3.4019e-08  3.2499e-08 ) ergs/cm2
 
Band function
Time interval is from    1.000 sec. to    2.000 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.27678   ( 1.29566   1.32806 )
beta        : -2.07991    ( 9.19356   18.7409 )
Epeak [keV] : 134.321      ( -86.436 -144.812 )
Norm@50keV   : 2.35565E-02    ( -0.00859579   0.0232518 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.85 using 55 PHA bins.
# Reduced chi-squared =         0.9578 for     51 degrees of freedom 
# Null hypothesis probability =   5.596456e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2
 
Single BB
 XSPEC: quit
 
 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 15.1701  (-3.23553  3.92788)
R^2/D10^2   : 0.239135  (-0.131468   0.311849)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.150e-08   3.997e-09
25- 50  4.617e-08   1.174e-08
50-150  7.267e-08   2.562e-08
15-150  1.303e-07   3.495e-08
Thermal bremsstrahlung (OTTB)
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-104.032      -199.363)
Norm        : 9.06649       (-1.44348     1.6905)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.258e-08   1.291e-08
25- 50  4.343e-08   2.449e-08
50-150  9.525e-08   5.425e-08
15-150  1.612e-07   8.950e-08
Double BB
XSPEC12>exit
 XSPEC: quit
 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.59734        (-2.4138      3.63697)
R1^2/D10^2  : 5.26064        (-4.31062      58.2474)
kT2 [keV]   : 23.4858        (-6.49963      17.9657)
R2^2/D10^2  : 4.32695E-02    (-0.0374285   0.0999129)
------------------------------------------------------------
 Reduced chi-squared = 
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.396e-08   1.307e-08
25- 50  4.031e-08   2.107e-08
50-150  9.787e-08   5.850e-08
15-150  1.621e-07   8.405e-08
Plot creation:
Fri Jul 23 15:19:56 EDT 2021