batgrbproduct analysis for trigger=1072990

batgrbproduct Analysis for Trigger=1072990

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): Mon Oct 24 00:30:44 EDT 2022
             Host Name: batproc1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger1072990
======================================================================

  Trigger: 01072990      Segment: 000

  BAT Trigger Time: 653137299.264   [s; MET]
      Trigger Stop: 653137299.776   [s; MET]
               UTC: 2021-09-12T11:01:11.549600    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 129.768773811578   Dec: 79.1940996457089  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.29
     Image Trigger?:     NO
     Rate S/N Ratio:     15.8429795177549  [ if not an image trigger ]
     Image S/N Ratio:    7.29

  Flight Position:   [ source = BAT ]
    RA: 129.768773811578   Dec: 79.1940996457089  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 129.872933703937   Dec: 79.2186019874407  [deg; J2000]  
        { 08h 39m 29.5s , +79d 13' 07.0" }
         +/- 1.21388932001449 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.43769455888611 [arcmin] (formal 1-sigma fit error)
    SNR: 23.0601716934487
 
  Angular difference between Flight and Ground position is 1.879120 arcmin
 
  Partial Coding Fraction: 1.03125    [ including projection effects ]

  Duration
     T90: 20.6959999799728 +/- 3.60535157017626
        Measured from: -14.8000000715256
                   to: 5.89599990844727     [s; relative to TRIGTIME]
     T50: 6.93999993801117 +/- 2.26649068239638
        Measured from: -4.48800003528595
                   to: 2.45199990272522     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.21999990940094     
                   to: 1.21999990940094     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -19.3600000143051     
                   to: 7.10399997234344     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.442177   0.689354   0.452738   0.099385
           0.035136   0.037011   0.032812   0.028930 [error]
 Peak      0.049324   0.106541   0.054929   0.017654
           0.007673   0.008471   0.007351   0.006310 [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 1.32e-07 2.46e-07 3.55e-07 1.08e-06 1.01e-06 1.81e-06   erg/cm2
              Error 1.44e-08 1.66e-08 3.13e-08 2.03e-07 7.57e-08 2.28e-07   erg/cm2
Peak flux Power-law 5.12e-01 5.46e-01 4.13e-01 5.08e-01 1.66e+00 1.98e+00   ph/cm2/s
              Error 8.78e-02 6.21e-02 5.66e-02 1.34e-01 1.82e-01 2.27e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.18e-07 2.65e-07 3.63e-07 3.78e-07 9.42e-07 1.12e-06   erg/cm2
              Error 1.71e-08 2.12e-08 3.48e-08 2.58e-07 8.63e-08 2.69e-07   erg/cm2
Peak flux Cutoff-PL 3.95e-01 6.87e-01 4.24e-01 6.45e-02 1.56e+00 1.57e+00   ph/cm2/s
              Error 1.01e-01 9.41e-02 7.92e-02 -------- 1.86e-01 1.93e-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    1.477    0.114    -      -           3.99e-03 2.69e-04   63.730 57
CPL   0.737    0.520      82.5   41.0      9.63e-03 6.44e-03   56.590 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.403    0.169    -      -           1.37e-02 1.53e-03   74.590 57
CPL  -0.755    1.181      56.6   11.7      2.11e-01 6.02e-01   57.700 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: 16.128000 sec.
T50 in the 50-300 keV band: 10.432000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   26.464  -19.360    7.104
T90    20.696  -14.800    5.896
T50     6.940   -4.488    2.452
Peak    1.000    0.220    1.220

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
  129.8729    79.2186   0.0083     7.6661  -153.7391         1.6569498     23.060 TRIG_01072990                 
 
Foreground time interval of the image:
-19.360   7.104 (delta_t =  26.464 [sec])
Background time interval of the image:
-239.264 -19.360 (delta_t = 219.904 [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  -19.360 sec. to    7.104 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.47705     ( -0.11344   0.114325 )
Norm@50keV  : 3.99458E-03    ( -0.000269937   0.000268798 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.73     using 59 bins.
 Reduced chi-squared = 1.11807
# Null hypothesis probability of 2.52e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 26.46 sec: 0.495678 ( -0.03255  0.032573 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.0067e-06 ( -7.53351e-08  7.60791e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  -19.360 sec. to    7.104 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.736520     ( -0.552903   0.487048 )
Epeak [keV] : 82.5220      ( -17.4804 64.4651 )
Norm@50keV  : 9.62503E-03    ( -0.00415399   0.00872724 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.59     using 59 bins.
 Reduced chi-squared = 1.01054
# Null hypothesis probability of 4.53e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 26.46 sec: 0.478293 ( -0.034464  0.03443 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.41045e-07 ( -8.5742e-08  8.68057e-08 ) ergs/cm2

Band function

Time interval is from  -19.360 sec. to    7.104 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]    : 14.3679  (-1.11905  1.23954)
R^2/D10^2   : 6.59562E-02  (-0.016653   0.0218295)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   86.71     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 6.80e-03 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.589e-08   8.652e-09
25- 50  2.895e-07   2.118e-08
50-150  3.987e-07   5.755e-08
15-150  7.641e-07   6.390e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-43.9169      -200)
Norm        : 2.02809       (-0.131285     0.131285)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   60.12     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.64e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.339e-07   1.012e-08
25- 50  2.576e-07   2.588e-08
50-150  5.649e-07   1.484e-07
15-150  9.564e-07   1.899e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.39780        (-2.23139      2.12233)
R1^2/D10^2  : 0.264091        (-0.120599      0.451385)
kT2 [keV]   : 26.2611        (-6.55944      15.5595)
R2^2/D10^2  : 5.61111E-03    (-0.00402389   0.0120487)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.77     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.09e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.095e-07   3.023e-08
25- 50  2.759e-07   7.897e-08
50-150  5.642e-07   2.517e-07
15-150  9.496e-07   3.547e-07

Peak spectrum fit

Power-law model

Time interval is from    0.220 sec. to    1.220 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40289     ( -0.168271   0.169199 )
Norm@50keV  : 1.36618E-02    ( -0.00153781   0.00153151 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   74.59     using 59 bins.
 Reduced chi-squared = 1.3086
# Null hypothesis probability of 5.89e-02 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.66490 ( -0.18193  0.182 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.31941e-07 ( -1.63936e-08  1.66149e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.220 sec. to    1.220 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.755416     ( -1.34676   1.01545 )
Epeak [keV] : 56.6132      ( -8.42759 15.0279 )
Norm@50keV  : 0.210544    ( -0.210856   0.992786 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   57.70     using 59 bins.
 Reduced chi-squared = 1.03036
# Null hypothesis probability of 4.12e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 1 sec: 1.56315 ( -0.18484  0.1862 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.08883e-07 ( -1.68741e-08  1.8479e-08 ) ergs/cm2

Band function

Time interval is from    0.220 sec. to    1.220 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]    : 13.5580  (-1.44081  1.68155)
R^2/D10^2   : 0.293986  (-0.100175   0.143826)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   59.27     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 3.93e-01 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.144e-08   2.286e-09
25- 50  4.120e-08   5.430e-09
50-150  4.903e-08   1.086e-08
15-150  1.017e-07   1.401e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-63.4852      -200)
Norm        : 6.89015       (-0.744261     0.744261)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   71.23     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 9.73e-02 with 57 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.716e-08   9.185e-09
25- 50  3.301e-08   1.819e-08
50-150  7.239e-08   3.954e-08
15-150  1.226e-07   6.730e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 12.1993        (-4.39814      2.22545)
R1^2/D10^2  : 0.393953        (-0.169669      0.499012)
kT2 [keV]   : 200.000        (-200      -200)
R2^2/D10^2  : 1.07815E-04    (-8.56743e-05   0.000375105)
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   55.07     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.72e-01 with 55 degrees of freedom
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.277e-08   3.798e-09
25- 50  4.072e-08   1.450e-08
50-150  6.529e-08   3.110e-08
15-150  1.188e-07   4.413e-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: 1.47705     ( -0.11344   0.114325 )
Norm@50keV  : 3.99458E-03    ( -0.000269937   0.000268798 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   63.73     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 2.52e-01 with 57 degrees of freedom
 
Photon flux (15-150 keV)    in 26.46 sec: 0.495666 ( -0.0325483  0.0325713 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.00657e-06 ( -7.53967e-08  7.60865e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.736521     ( -0.552903   0.487048 )
Epeak [keV] : 82.5220      ( -17.4804 64.4651 )
Norm@50keV  : 9.62503E-03    ( -0.00415399   0.00872724 )
------------------------------------------------------------
#Fit statistic  : Chi-Squared                   56.59     using 59 bins.
 Reduced chi-squared = 
# Null hypothesis probability of 4.53e-01 with 56 degrees of freedom
 
Photon flux (15-150 keV)    in 26.46 sec: 0.478246 ( -0.034456  0.034421 ) ph/cm2/s
Energy fluence (15-150 keV)             : 9.41394e-07 ( -8.58812e-08  8.69581e-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)  = 2.46e-07
S(50-100 keV) = 3.55e-07

T90 vs. Hardness ratio plot

T90                                   = 20.6959999799728 sec.
Hardness ratio (energy fluence ratio) = 1.44309

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.559
Count Ratio (50-100 keV) / (15-25 keV) = 1.02388

Mask shadow pattern

IMX = -1.207106120989392E-01, IMY = 5.955634539474253E-02

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:
-239.264000 -19.360000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6291  22.0059    1.6  53.4    9.5   7.1992   7.2    0.6	Crab                          
332.5040  57.8261    2.9  43.7  131.1   3.9779   4.0 ------	UNKNOWN                       
323.7671  57.4766    2.4  45.4  137.4   4.7195   4.7 ------	UNKNOWN                       
248.7316  45.8066    2.9  57.6 -165.4   5.2315   4.0 ------	UNKNOWN                       
175.9986  55.9388    3.2  32.6 -110.0   1.7869   3.6 ------	UNKNOWN

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

Time interval of the image:
-19.360000 7.104000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.7423  21.9611    8.9  53.5    9.3   0.3549   1.3    6.9	Crab                          
268.2583  55.2001    2.8  50.0  177.9   0.7665   4.1 ------	UNKNOWN                       
129.8730  79.2186    0.5   7.7 -153.7   1.6570  23.1 ------	UNKNOWN                       
237.7426  42.4577    2.3  59.3 -155.5   2.2358   5.1 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
41.036600 622.236600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
355.9641  57.4708    2.5  40.7   95.7   7.6330   4.7 ------	UNKNOWN                       
277.6848  57.9601    3.2  41.6  157.3   3.8934   3.6 ------	UNKNOWN                       
265.5633  62.1002    3.1  36.4  165.6   2.7764   3.7 ------	UNKNOWN                       
240.5129  36.8428    2.9  57.6 -165.4  10.6867   4.0 ------	UNKNOWN                       
104.3884  25.8576    4.9  54.5  -19.6   4.0815   2.4 ------	UNKNOWN

Plot creation:
Mon Oct 24 05:19:33 EDT 2022