GRB101129A

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 GROUND-DETECTED GRB DATA PROCESSING REPORT                 
    Process Script: hand-made scripts that follow steps in batgrbproduct
                    but without using TDRSS info
    Process Start Time: Wed Oct 22 23:07:54 EDT 2014
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/ground_detect_bursts/scripts
==========================================================================
 
  BAT Trigger Time: 312737978.064
               UTC: 2010-11-29T15:39:31.648   [includes UTCF correction]
       Where From?: Ground analysis (best_duration.txt)
  NOTE: BAT trigger time for ground-detected burst is the T100 start time.
 
  Analysis Position:   [ source = GCN ]
    RA: 155.921   Dec: -17.645  [deg; J2000]
 
  Refined Position:   [ source = BAT pre-slew image ]
    RA: 155.921   Dec: -17.645  [deg; J2000]
        { 10h 23m 41.0s , -17d -38' -42.0" }
        +/- 3.09382283414 [arcmin] (estimated 90% radius based on SNR)
    SNR: 6.05992746098
 
 
  Angular difference between the analysis and refined position is 0.000000 arcmin
 
  Partial Coding Fraction: 1.240234e-01    [ including projection effects ]
 
  Duration (found by FRED-model fit)
     T90: 0.384 +/- N/A
        Measured from: 0.048
                   to: 0.432     [s; relative to TRIGTIME]
     T50: 0.128 +/- N/A
        Measured from: 0.112
                   to: 0.24
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100    0.624    0.000    0.624
T90     0.384    0.048    0.432
T50     0.128    0.112    0.240
Peak    1.000   -0.367    0.633
 
 
====== Spectral Analysis Summary =====================================
 
Model      : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index   : photon index: E^{Ph_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 both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2       : Chi-Squared
dof        : degree of freedo
 
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: N/A)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -0.574    -0.719      0.938       -           -               -         1.62e-02     -1.62e-02          7.03e-03      51.240   57
CPL     -0.558    -0.732      1.142     9999.360    -9999.360      -9999.360      1.62e-02     -7.90e-03          1.98e-01      51.250   56
 
 
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: N/A)
 
Model Ph_index Ph_90err_low Ph_90err_hi  Epeak  Epeak_90err_low  Epeak_90err_hi  Norm       Nomr_90err_low    Norm_90err_hi    chi2    dof
PL      -0.957     -0.743     0.813       -           -               -         1.32e-02     -5.48e-03          4.89e-03      78.820   57
CPL     -0.974     -0.725     0.847     9999.360    -9999.360      -9999.360      1.33e-02        N/A               N/A         78.830   56
 
 
=== 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         PL   5.45e-09  1.78e-08  4.78e-08  3.78e-07  1.31e-07  4.49e-07   erg/cm2
      90%_error_low -4.26e-09 -1.08e-08 -1.59e-08 -2.40e-07 -4.39e-08 -2.45e-07   erg/cm2
      90%_error_hi   7.27e-09  1.11e-08  1.59e-08  5.27e-07  4.38e-08  5.10e-07   erg/cm2
Peak flux       PL   3.23e-01  4.50e-01  4.64e-01  8.75e-01  1.51e+00  2.11e+00   ph/cm2/s
      90%_error_low -2.29e-01 -4.50e-01 -1.71e-01 -5.76e-01 -5.80e-01 -7.50e-01   ph/cm2/s
      90%_error_hi   3.52e-01  2.33e-01  1.63e-01  1.01e+00  6.00e-01  8.25e-01   ph/cm2/s
 
Fluence        CPL   5.48e-09  1.78e-08  4.75e-08  3.83e-07  1.30e-07  4.06e-07   erg/cm2
      90%_error_low    N/A       N/A       N/A       N/A    -4.39e-08    N/A      erg/cm2
      90%_error_hi     N/A       N/A       N/A       N/A     4.43e-08    N/A      erg/cm2
Peak flux      CPL   3.24e-01  4.59e-01  4.58e-01  8.64e-01  1.51e+00  2.12e+00   ph/cm2/s
      90%_error_low     N/A       N/A       N/A       N/A       N/A   -1.05e+00   ph/cm2/s
      90%_error_hi      N/A       N/A       N/A       N/A       N/A    8.03e-01   ph/cm2/s
 
======================================================================

Special notes of this burst

Image

15.0-350.0 keV image (Event data)

#RAcent DECcent POSerr Theta  Phi  Peak_Cts  SNR Name
155.921 -17.645 0.000 50.497 11.941 0.196 5.314 TRIG_00439471
 
Image time interval: 0.000 to 0.624 [sec]

Light Curves

Note: The mask-weighted lightcurves have units of either count/det or counts/sec/det, where a det is 0.4 x 0.4 = 0.16 sq cm.

Best duration plot

Full-time range; 1 s binning

Bokeh Plot

Other quick-look light curves:

64 ms binning (zoomed)
16 ms binning (zoomed)
8 ms binning (zoomed)
2 ms binning (zoomed)
SN=5 or 10 s binning (full-time range)
Raw light curve

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    0.000 sec. to    0.624 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.573868     ( -0.718966   0.937776 )
Norm@50keV  : 1.61554E-02    ( -0.0161551   0.00702763 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.24 using 59 PHA bins.
# Reduced chi-squared =         0.8990 for     57 degrees of freedom 
# Null hypothesis probability =   6.898067e-01
 
Photon flux (15-150 keV)    in 0.624 sec: 1.89246 ( -0.73559  0.76933 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.30568e-07 ( -4.38785e-08  4.38477e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.000 sec. to    0.624 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.557827     ( -0.731295   1.14231 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 1.61703E-02    ( -0.00797405   0.197925 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.25 using 59 PHA bins.
# Reduced chi-squared =         0.9152 for     56 degrees of freedom 
# Null hypothesis probability =   6.548630e-01
 
Photon flux (15-150 keV)    in 0.624 sec: 1.91189 ( -0.75857  0.75378 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.30342e-07 ( -4.39203e-08  4.43101e-08 ) ergs/cm2

1-s peak spectrum fit

Power-law model

Time interval is from   -0.367 sec. to    0.633 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.956626     ( -0.743819   0.813044 )
Norm@50keV  : 1.31814E-02    ( -0.0054797   0.00489471 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.82 using 59 PHA bins.
# Reduced chi-squared =          1.383 for     57 degrees of freedom 
# Null hypothesis probability =   2.940658e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.51454 ( -0.579953  0.60036 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.44817e-07 ( -5.19289e-08  5.17543e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -0.367 sec. to    0.633 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -0.973628     ( -0.726255   0.846122 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 1.33308E-02    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          78.83 using 59 PHA bins.
# Reduced chi-squared =          1.408 for     56 degrees of freedom 
# Null hypothesis probability =   2.387788e-02
 
Photon flux (15-150 keV)    in 1 sec: 1.51485 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.27442e-08 ( 0  0 ) ergs/cm2

Time-resolved spectra

Distribution

T90 vs. Hardness ratio plot

T90                                   = N/A sec.
Hardness ratio (energy fluence ratio) = N/A

S(15-50 keV) vs. S(50-150 keV) plot

S(15-50 keV)  = N/A
S(50-150 keV) = N/A

The dash-dotted line and the dashed line traces the fluences calculated from the Band function with Epeak = 15 and 150 keV, respectively. Both lines assume a canonical values of alpha = -1 and beta = -2.5.

Mask shadow pattern

IMX = 1.18673455856, IMY = -0.250963729734

Spacecraft aspect plot

Bright source in the event data image

Event data image of 15-350 keV band

Time interval of the image:
0.048000 0.432000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
254.4130  35.4225    4.1  56.4 -167.7  -0.0870  -2.8    5.3	Her X-1                       
197.7834  32.9527    2.2  21.0  138.0   0.0496   5.2 ------	UNKNOWN                       
155.9281 -17.6135    2.0  50.5   12.0   0.1853   5.7 ------	UNKNOWN                       
208.5153  -1.5021    2.3  17.4  -83.1   0.0481   5.0 ------	UNKNOWN

Webpage updated on:
Wed Nov 25 13:14:01 EST 2015

Analysis Summary

Notes:

Image

15.0-350.0 keV image (Event data)

Light Curves

Best duration plot

Full-time range; 1 s binning

Other quick-look light curves:

64 ms binning (zoomed) 16 ms binning (zoomed) 8 ms binning (zoomed) 2 ms binning (zoomed) SN=5 or 10 s binning (full-time range) Raw light curve

Spectra

Notes:

Time averaged spectrum fit using the average DRM

Power-law model

Cutoff power-law model

1-s peak spectrum fit

Power-law model

Cutoff power-law model

Time-resolved spectra

Distribution

T90 vs. Hardness ratio plot

S(15-50 keV) vs. S(50-150 keV) plot

Mask shadow pattern

Spacecraft aspect plot

Bright source in the event data image

Event data image of 15-350 keV band

64 ms binning (zoomed)
16 ms binning (zoomed)
8 ms binning (zoomed)
2 ms binning (zoomed)
SN=5 or 10 s binning (full-time range)
Raw light curve