batgrbproduct analysis for trigger=433065

batgrbproduct Analysis for Trigger=433065

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 v2.46
    Process Start Time (local time): Fri Jan 17 16:28:41 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger433065
======================================================================

  Trigger: 00433065      Segment: 000

  BAT Trigger Time: 305040856.512   [s; MET]
      Trigger Stop: 305040864.704   [s; MET]
               UTC: 2010-09-01T13:34:10.376100    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 27.2446729253292   Dec: 22.7443520105249  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.7
     Image Trigger?:     NO
     Rate S/N Ratio:     10.1980390271856  [ if not an image trigger ]
     Image S/N Ratio:    7.7

  Flight Position:   [ source = BAT ]
    RA: 27.2446729253292   Dec: 22.7443520105249  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 27.2447   Dec: 22.7443  [deg; J2000]
        { 01h 48m 58.7s , +22d 44' 39.5" }
        +/- 2.36429637896 [arcmin] (estimated 90% radius based on SNR)
    SNR: 8.89846949821
 
 
  Angular difference between Flight and Ground position is 0.003462 arcmin
 
  Partial Coding Fraction: 0.4023438    [ including projection effects ]

  Duration
     T90: 436.655999958515 +/- 21.7875108881231
        Measured from: 0.287999987602234
                   to: 436.943999946117     [s; relative to TRIGTIME]
     T50: 198.155999958515 +/- 192.654618203612
        Measured from: 199.543999969959
                   to: 397.699999928474     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: -1.80800002813339     
                   to: -0.808000028133392     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.4200000166893     
                   to: 458.423999965191     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.813924   1.161621   0.893494   0.239063
           0.118239   0.123275   0.111186   0.102030 [error]
 Peak      0.029326   0.034461   0.016573   0.014175
           0.008345   0.008604   0.007799   0.007138 [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 2.36e-07 4.60e-07 6.96e-07 2.29e-06 1.95e-06 3.68e-06   erg/cm2
              Error 4.66e-08 5.53e-08 1.07e-07 7.65e-07 2.61e-07 8.46e-07   erg/cm2
Peak flux Power-law 3.22e-01 2.66e-01 1.48e-01 1.22e-01 7.90e-01 8.58e-01   ph/cm2/s
              Error 1.47e-01 7.40e-02 6.79e-02 1.19e-01 2.21e-01 2.40e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.36e-07 4.61e-07 6.95e-07 2.26e-06 1.95e-06 3.65e-06   erg/cm2
              Error 3.55e-08 4.41e-08 1.07e-07 9.86e-07 2.65e-07 1.23e-06   erg/cm2
Peak flux Cutoff-PL 3.29e-01 2.66e-01 1.45e-01 1.15e-01 7.92e-01 8.55e-01   ph/cm2/s
              Error 1.12e-01 7.35e-02 6.76e-02 1.04e-01 2.19e-01 2.37e-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    1.402    0.204    -      -           4.39e-04 5.16e-05   50.260 57
CPL   1.404    0.206    9999.4    0.0      4.40e-04 3.00e-04   50.270 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.840    0.614    -      -           5.65e-03 1.94e-03   56.440 57
CPL   2.747    0.000     242.6    0.0      1.99e-03 0.00e+00   55.070 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: 23.232000 sec.
T50 in the 50-300 keV band: 11.968000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  460.844   -2.420  458.424
T90   436.656    0.288  436.944
T50   198.156  199.544  397.700
Peak    1.000   -1.808   -0.808

Click here for the BAT GCN circular template

Special notes of this burst

Image

Pre-slew 25.0-100.0 keV image (Event data)

#RAcent DECcent POSerr Theta  Phi  Peak_Cts  SNR Name
27.245 22.744 0.000 41.044 165.735 0.318 8.898 TRIG_00433065
 
Image time interval: 0.000 to 8.192 [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

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)

Quad-rate summed light curves (from T0-300s to T0+1000s)

The mask-weighted light curves based on cleaned DPHs

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   -2.420 sec. to  458.424 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40216     ( -0.204463   0.204133 )
Norm@50keV  : 4.39118E-04    ( -5.17692e-05   5.14189e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.26 using 59 PHA bins.
# Reduced chi-squared =         0.8817 for     57 degrees of freedom 
# Null hypothesis probability =   7.240799e-01
 
Photon flux (15-150 keV)    in 460.8 sec: 5.35026E-02 ( -0.00617913  0.00618523 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95433e-06 ( -2.58668e-07  2.62377e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -2.420 sec. to  458.424 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.40416     ( -0.20923   0.201834 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 4.39711E-04    ( -0.000118358   0.000482153 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.27 using 59 PHA bins.
# Reduced chi-squared =         0.8976 for     56 degrees of freedom 
# Null hypothesis probability =   6.907239e-01
 
Photon flux (15-150 keV)    in 460.8 sec: 5.34820E-02 ( -0.0061504  0.0061439 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.95241e-06 ( -2.69057e-07  2.60997e-07 ) ergs/cm2

Band function

Time interval is from   -2.420 sec. to  458.424 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.94336   ( -4.94336   -4.94336 )
beta        : -1.53369    ( -0.290698   0.241661 )
Epeak [keV] : 25.5976      ( -25.5976 5.12721 )
Norm@50keV   : 35.0189    ( -3.96989   149727 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.68 using 59 PHA bins.
# Reduced chi-squared =         0.8669 for     55 degrees of freedom 
# Null hypothesis probability =   7.476965e-01
 
Photon flux (15-150 keV)    in 460.8 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]    : 14.8132  (-2.40473  3.01949)
R^2/D10^2   : 6.24169E-03  (-0.00290506   0.00530361)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          75.01 using 59 PHA bins.
# Reduced chi-squared =          1.316 for     57 degrees of freedom 
# Null hypothesis probability =   5.510061e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.324e-07   3.117e-08
25- 50  5.200e-07   9.237e-08
50-150  7.721e-07   1.928e-07
15-150  1.424e-06   2.170e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (-58.334      -200)
Norm        : 0.219186       (-0.0251228     0.0251228)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.21 using 59 PHA bins.
# Reduced chi-squared =         0.9159 for     57 degrees of freedom 
# Null hypothesis probability =   6.551739e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.515e-07   1.409e-07
25- 50  4.838e-07   2.684e-07
50-150  1.061e-06   5.834e-07
15-150  1.796e-06   9.707e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.16690        (-1.80475      2.64066)
R1^2/D10^2  : 5.71474E-02        (-0.0362617      0.0990197)
kT2 [keV]   : 35.4824        (-12.4997      108.817)
R2^2/D10^2  : 2.84334E-04    (-0.000269228   0.000861971)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.22 using 59 PHA bins.
# Reduced chi-squared =         0.8767 for     55 degrees of freedom 
# Null hypothesis probability =   7.294091e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.457e-07   1.013e-07
25- 50  4.708e-07   1.901e-07
50-150  1.300e-06   6.916e-07
15-150  2.016e-06   9.076e-07

Peak spectrum fit

Power-law model

Time interval is from   -1.808 sec. to   -0.808 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.84020     ( -0.576779   0.650236 )
Norm@50keV  : 5.64543E-03    ( -0.00204903   0.00182125 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.44 using 59 PHA bins.
# Reduced chi-squared =         0.9901 for     57 degrees of freedom 
# Null hypothesis probability =   4.961470e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.790399 ( -0.221193  0.220953 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.19153e-08 ( -1.74014e-08  1.79455e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   -1.808 sec. to   -0.808 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 2.74680     (     )
Epeak [keV] : 242.616      (   )
Norm@50keV  : 1.99431E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          55.07 using 59 PHA bins.
# Reduced chi-squared =         0.9834 for     56 degrees of freedom 
# Null hypothesis probability =   5.100380e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.791755 ( -0.2194  0.219595 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.10953e-08 ( -1.66334e-08  1.78139e-08 ) ergs/cm2

Band function

Time interval is from   -1.808 sec. to   -0.808 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.45399   ( 1.45427   1.45427 )
beta        : -1.84026    ( 1.84042   0.576802 )
Epeak [keV] : 17.1316      ( -17.033 -17.033 )
Norm@50keV   : 1.43610E-02    ( -0.0143742   11322.1 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.44 using 59 PHA bins.
# Reduced chi-squared =          1.026 for     55 degrees of freedom 
# Null hypothesis probability =   4.209986e-01
 
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]    : 7.90489  (-2.64473  4.87194)
R^2/D10^2   : 0.848338  (-0.84462   3.60438)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.63 using 59 PHA bins.
# Reduced chi-squared =          1.116 for     57 degrees of freedom 
# Null hypothesis probability =   2.546276e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  9.500e-09   5.835e-09
25- 50  1.628e-08   9.975e-09
50-150  4.110e-09   3.187e-09
15-150  2.989e-08   1.842e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 99.8454       (-99.9046      -99.9046)
Norm        : 3.41445       (-1.21298     2.41504)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.06 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     57 degrees of freedom 
# Null hypothesis probability =   4.361470e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.924e-09   5.370e-09
25- 50  1.543e-08   9.260e-09
50-150  2.498e-08   1.889e-08
15-150  4.933e-08   3.464e-08

Double BB

------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.12207        (-2.20326      3.07964)
R1^2/D10^2  : 2.14981        (-1.69396      13.2371)
kT2 [keV]   : 98.7805        (-74.4033      -99.6656)
R2^2/D10^2  : 3.63102E-04    (-0.00029381   0.00941611)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.36 using 59 PHA bins.
#Fit statistic : Chi-Squared =          53.29 using 59 PHA bins.
# Reduced chi-squared =         0.9702 for     55 degrees of freedom 
# Reduced chi-squared =         0.9688 for     55 degrees of freedom 
# Null hypothesis probability =   5.375531e-01
# Null hypothesis probability =   5.404070e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.131e-08   6.760e-09
25- 50  1.305e-08   7.230e-09
50-150  3.584e-08   2.067e-08
15-150  6.020e-08   3.077e-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: 1.80851     ( -0.481713   0.542595 )
Norm@50keV  : 8.12106E-04    ( -0.000263364   0.000247606 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.71 using 59 PHA bins.
# Reduced chi-squared =         0.8545 for     57 degrees of freedom 
# Null hypothesis probability =   7.748103e-01
 
Photon flux (15-150 keV)    in 53.81 sec: 0.112278 ( -0.0301829  0.0302167 ) ph/cm2/s
Energy fluence (15-150 keV)             : 4.02187e-07 ( -1.25798e-07  1.30648e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.66404     ( -2.33358   0.7174 )
Epeak [keV] : 106.168      (   )
Norm@50keV  : 9.73477E-04    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.69 using 59 PHA bins.
# Reduced chi-squared =         0.8694 for     56 degrees of freedom 
# Null hypothesis probability =   7.453408e-01
 
Photon flux (15-150 keV)    in 53.81 sec: 0.111691 ( -0.0310988  0.030648 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.9763e-07 ( -1.35942e-07  1.33935e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -6.69402   ( 6.69402   6.69402 )
beta        : -1.80851    ( -0.542595   0.481524 )
Epeak [keV] : 79.0008      ( -79.0008 -79.0008 )
Norm@50keV   : 0.110377    ( -0.0357949   0.0336551 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          48.71 using 59 PHA bins.
# Reduced chi-squared =         0.8856 for     55 degrees of freedom 
# Null hypothesis probability =   7.124094e-01
 
Photon flux (15-150 keV)    in 53.81 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)  = 4.60e-07
S(50-100 keV) = 6.96e-07

T90 vs. Hardness ratio plot

T90                                   = 436.655999958515 sec.
Hardness ratio (energy fluence ratio) = 1.51304

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.42719
Count Ratio (50-100 keV) / (15-25 keV) = 1.09776

Mask shadow pattern

IMX = -0.843794285758, IMY = -0.214535657933

TIME vs. PHA plot around the trigger time

TIME vs. DetID plot around the trigger time

100 us light curve (15-350 keV)

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:
-239.512000 -2.420000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 39.8396  33.6801    3.1  54.3  176.9   2.3632   3.7 ------	UNKNOWN                       
 54.4826  32.0424    3.2  58.7 -169.2   3.5980   3.6 ------	UNKNOWN

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

Time interval of the image:
-2.420000 51.388600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 27.2549  22.7543    2.2  41.1  165.7   0.6884   5.2 ------	UNKNOWN                       
 27.2924  11.3554    2.1  29.8  168.5   0.4801   5.4 ------	UNKNOWN                       
 24.5745  -3.7907    2.4  14.4  167.2   0.3600   4.9 ------	UNKNOWN                       
 63.0742 -55.6500    2.5  48.4  -50.1   1.5872   4.7 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
127.588610 625.388600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 27.2676  22.7560    1.3   0.1 -167.3   2.6975   9.2 ------	UNKNOWN

Plot creation:
Thu Oct  8 20:27:26 EDT 2015