batgrbproduct analysis for trigger=1095288

batgrbproduct Analysis for Trigger=1095288

Analysis Summary

Notes:

1) No attempt has been made to eliminate the non-significant decimal places.
2) This batgrbproduct analysis is done using the HEASARC data.
3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.

======================================================================
                  BAT GRB EVENT DATA PROCESSING REPORT
    Process Script Ver: batgrbproduct v2.48
    Process Start Time (local time): Sun Oct 23 23:37:07 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1095288
======================================================================

  Trigger: 01095288      Segment: 000

  BAT Trigger Time: 668283366.208   [s; MET]
      Trigger Stop: 668283366.72   [s; MET]
               UTC: 2022-03-06T18:15:37.473400    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 5.3780511855963   Dec: 71.3538978453536  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    12.05
     Image Trigger?:     NO
     Rate S/N Ratio:     22.781571499789  [ if not an image trigger ]
     Image S/N Ratio:    12.05

  Flight Position:   [ source = BAT ]
    RA: 5.3780511855963   Dec: 71.3538978453536  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 5.38011331226045   Dec: 71.3845960963915  [deg; J2000]  
        { 00h 21m 31.2s , +71d 23' 04.5" }
         +/- 1.55469563082041 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.71453921867971 [arcmin] (formal 1-sigma fit error)
    SNR: 16.1934456676201
 
  Angular difference between Flight and Ground position is 1.842319 arcmin
 
  Partial Coding Fraction: 0.7890625    [ including projection effects ]

  Duration
     T90: 12.336000084877 +/- 3.2357997965706
        Measured from: -1.57599997520447
                   to: 10.7600001096725     [s; relative to TRIGTIME]
     T50: 3.44000005722046 +/- 2.58453242800887
        Measured from: -0.135999917984009
                   to: 3.30400013923645     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -0.0519999265670776     
                   to: 0.948000073432922     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -1.81599998474121     
                   to: 11.6560000181198     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.234598   0.307899   0.284476   0.076059
           0.033152   0.034710   0.031005   0.027056 [error]
 Peak      0.067023   0.099426   0.098921   0.038587
           0.010079   0.011097   0.010301   0.008005 [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 6.41e-08 1.33e-07 2.16e-07 7.88e-07 5.97e-07 1.20e-06   erg/cm2
              Error 1.30e-08 1.59e-08 3.03e-08 2.49e-07 7.50e-08 2.69e-07   erg/cm2
Peak flux Power-law 6.10e-01 7.41e-01 6.51e-01 9.82e-01 2.35e+00 2.98e+00   ph/cm2/s
              Error 1.22e-01 9.02e-02 8.12e-02 2.61e-01 2.52e-01 3.42e-01   ph/cm2/s
 
Fluence   Cutoff-PL 6.45e-08 1.31e-07 2.14e-07 8.23e-07 6.03e-07 1.19e-06   erg/cm2
              Error -------- 2.18e-08 4.16e-08 -------- 9.02e-08 3.06e-07   erg/cm2
Peak flux Cutoff-PL 5.88e-01 7.51e-01 6.64e-01 8.08e-01 2.33e+00 2.81e+00   ph/cm2/s
              Error 1.46e-01 9.94e-02 9.50e-02 3.20e-01 2.60e-01 5.04e-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    1.301    0.200    -      -           4.49e-03 4.93e-04   69.320 57
CPL   1.298    0.419    10000.0    0.0      4.51e-03 4.94e-04   69.320 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.187    0.185    -      -           2.00e-02 2.11e-03   56.320 57
CPL   1.014    0.574     309.7    0.0      2.42e-02 2.07e-02   56.150 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: 2.752000 sec.
T50 in the 50-300 keV band: 1.344000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   13.472   -1.816   11.656
T90    12.336   -1.576   10.760
T50     3.440   -0.136    3.304
Peak    1.000   -0.052    0.948

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
    5.3801    71.3846   0.0119    18.2925   124.7735         1.0419499     16.193 TRIG_01095288                 
 
Foreground time interval of the image:
 -1.816  11.656 (delta_t =  13.472 [sec])
Background time interval of the image:
-232.507  -1.816 (delta_t = 230.691 [sec])

Lightcurves

Notes:

1) The mask-weighted light curves are using the flight position.
2) Multiple plots of different time binning/intervals are shown to cover all scenarios of short/long GRBs, rate/image triggers, and real/false positives.
3) For all the mask-weighted lightcurves, the y-axis units are counts/sec/det where a det is 0.4 x 0.4 = 0.16 sq cm.
4) The verticle lines correspond to following: green dotted lines are T50 interval, black dotted lines are T90 interval, blue solid line(s) is a spacecraft slew start time, and orange solid line(s) is a spacecraft slew end time.
5) Time of each bin is in the middle of the bin.

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 0.512000

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 0.512000

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 0.512000

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:

1) The fitting includes the systematic errors.
2) When the burst includes telescope slew time periods, the fitting uses an average response file made from multiple 5-s response files through out the slew time plus single time preiod for the non-slew times, and weighted by the total counts in the corresponding time period using addrmf. An average response file is needed becuase a spectral fit using the pre-slew DRM will introduce some errors in both a spectral shape and a normalization if the PHA file contains a lot of the slew/post-slew time interval.
3) For fits to more complicated models (e.g. a power-law over a cutoff power-law), the BAT team has decided to require a chi-square improvement of more than 6 for each extra dof.

Time averaged spectrum fit using the average DRM

Power-law model

Time interval is from   -1.816 sec. to   11.656 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.30133     ( -0.200356   0.198993 )
Norm@50keV  : 4.48879E-03    ( -0.000493797   0.000492733 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.32     using 59 bins.
 Reduced chi-squared = 1.21614
# Null hypothesis probability of 1.27e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 13.47 sec: 0.535662 ( -0.059559  0.05966 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.97376e-07 ( -7.45612e-08  7.53804e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.816 sec. to   11.656 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29782     ( -0.600457   0.238405 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 4.50740E-03    ( -0.000496706   0.000491106 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.32     using 59 bins.
 Reduced chi-squared = 1.23786
# Null hypothesis probability of 1.09e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 13.47 sec: 0.538714 ( -0.078657  0.072283 ) ph/cm2/s
Energy fluence (15-150 keV)             : 6.02805e-07 ( -1.06684e-07  7.37877e-08 ) ergs/cm2

Band function

Time interval is from   -1.816 sec. to   11.656 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]    : 17.0481  (-2.46788  3.05044)
R^2/D10^2   : 3.98681E-02  (-0.0168564   0.0278554)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   91.24     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.68e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.176e-08   7.341e-09
25- 50  1.409e-07   2.764e-08
50-150  2.925e-07   6.883e-08
15-150  4.652e-07   7.395e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-41.4013      -200)
Norm        : 2.20143       (-0.242604     0.242604)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   74.35     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.12e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.384e-08   4.106e-08
25- 50  1.420e-07   7.777e-08
50-150  3.115e-07   1.713e-07
15-150  5.274e-07   2.852e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.71604        (-2.1932      7.08145)
R1^2/D10^2  : 0.993394        (-0.88593      6.29994)
kT2 [keV]   : 26.1820        (-6.75354      -26.31)
R2^2/D10^2  : 8.41588E-03    (-0.00801187   0.0147732)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   72.10     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.07e-02 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  6.717e-08   3.633e-08
25- 50  1.248e-07   4.830e-08
50-150  3.890e-07   2.111e-07
15-150  5.809e-07   2.417e-07

Peak spectrum fit

Power-law model

Time interval is from   -0.052 sec. to    0.948 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.18657     ( -0.185605   0.184056 )
Norm@50keV  : 2.00161E-02    ( -0.00211317   0.00211225 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.32     using 59 bins.
 Reduced chi-squared = 0.98807
# Null hypothesis probability of 5.01e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.34514 ( -0.25174  0.25209 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.03873e-07 ( -2.43459e-08  2.45396e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.052 sec. to    0.948 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.01396     ( -0.808795   0.338782 )
Epeak [keV] : 309.735      ( -309.734 -309.734 )
Norm@50keV  : 2.41819E-02    ( -0.00893565   0.0324906 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.15     using 59 bins.
 Reduced chi-squared = 1.00268
# Null hypothesis probability of 4.69e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 2.33005 ( -0.25977  0.25923 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.01865e-07 ( -2.6105e-08  2.54248e-08 ) ergs/cm2

Band function

Time interval is from   -0.052 sec. to    0.948 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]    : 18.8864  (-2.48668  3.00496)
R^2/D10^2   : 0.131322  (-0.0502001   0.0774137)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   72.20     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 8.46e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.227e-09   1.930e-09
25- 50  4.419e-08   7.000e-09
50-150  1.157e-07   2.326e-08
15-150  1.691e-07   2.330e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-29.844      -200)
Norm        : 9.57883       (-1.03262     1.03262)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   66.76     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.77e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.385e-08   1.321e-08
25- 50  4.587e-08   2.476e-08
50-150  1.006e-07   5.465e-08
15-150  1.703e-07   9.315e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 4.57799        (-2.00513      7.6372)
R1^2/D10^2  : 8.08694        (-7.68247      136.741)
kT2 [keV]   : 23.6794        (-4.25328      34.0454)
R2^2/D10^2  : 5.78621E-02    (-0.0458116   0.0560414)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   57.54     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.81e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.943e-08   9.422e-09
25- 50  3.907e-08   1.060e-08
50-150  1.338e-07   4.035e-08
15-150  1.923e-07   4.880e-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: 1.30133     ( -0.200356   0.198993 )
Norm@50keV  : 4.48879E-03    ( -0.000493797   0.000492733 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.32     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.27e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 13.47 sec: 0.535655 ( -0.0595559  0.059658 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.97299e-07 ( -7.45435e-08  7.53948e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.29781     ( -0.599519   0.239991 )
Epeak [keV] : 1.00000E+04      ( -10000 -10000 )
Norm@50keV  : 4.50740E-03    ( -0.000496706   0.000491106 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   69.32     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 1.09e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 13.47 sec: 0.535525 ( -0.059586  0.059545 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.96776e-07 ( -7.56664e-08  7.49026e-08 ) 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)  = 1.33e-07
S(50-100 keV) = 2.16e-07

T90 vs. Hardness ratio plot

T90                                   = 12.336000084877 sec.
Hardness ratio (energy fluence ratio) = 1.62406

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.31245
Count Ratio (50-100 keV) / (15-25 keV) = 1.21261

Mask shadow pattern

IMX = -1.885367209634014E-01, IMY = -2.715366784012588E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 0.512000

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:
-232.507400 -1.816000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5890  35.1984    0.6  33.4  -18.7   8.2840  19.8    0.2	Cyg X-1                       
308.0707  40.9556    4.2  24.8  -22.2   0.9884   2.7    1.8	Cyg X-3                       
326.2978  38.4956    0.0  20.1  -58.0   0.1684   0.4   12.0	Cyg X-2                       
173.5864  82.0627    2.5  40.4   92.8   5.7883   4.6 ------	UNKNOWN                       
245.4231  52.1944    2.2  49.2   42.1   6.8454   5.2 ------	UNKNOWN                       
290.8798  67.6654    3.1  23.1   51.7   1.3802   3.8 ------	UNKNOWN                       
308.0113  37.6772    1.9  27.5  -26.6   2.3220   6.2 ------	UNKNOWN                       
  7.5825  27.8744    2.9  36.3 -132.7   2.3250   4.0 ------	UNKNOWN

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

Time interval of the image:
-1.816000 11.656000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.3888  35.1740    7.3  33.6  -18.5  -0.1255  -1.6   10.0	Cyg X-1                       
307.9904  40.8150    9.2  25.0  -22.3  -0.0772  -1.2    9.9	Cyg X-3                       
326.3777  38.2786    5.7  20.3  -58.4   0.1281   2.0   10.0	Cyg X-2                       
  5.3801  71.3846    0.7  18.3  124.8   1.0418  16.2 ------	UNKNOWN                       
 49.2576  26.4593    2.1  58.3 -174.3   1.8250   5.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
68.892600 962.922000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
299.5694  35.2032    1.4  49.2  -28.4  25.6398   8.2    1.0	Cyg X-1                       
308.0969  40.9533   16.0  41.3  -33.9   1.4070   0.7    0.6	Cyg X-3                       
326.0756  38.1671    0.0  38.7  -55.5  -0.7879  -0.4   10.3	Cyg X-2                       
134.3752  71.5634    3.0  33.4   98.3   5.9224   3.8 ------	UNKNOWN                       
 69.9009  26.2280    2.3  57.2  177.2  26.0838   4.9 ------	UNKNOWN                       
 65.0519  39.8252    3.1  43.1  175.5   6.8616   3.8 ------	UNKNOWN                       
 33.5127  39.9383    3.8  34.5 -148.0   3.9416   3.1 ------	UNKNOWN

Plot creation:
Mon Oct 24 05:06:09 EDT 2022