GRB041219C

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: Thu Jun 25 18:08:57 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger100380
======================================================================

  Trigger: 00100380      Segment: 000

  BAT Trigger Time: 125181033   [s; MET]
      Trigger Stop: 125181033.32   [s; MET]
               UTC: 2004-12-19T20:30:34.000000    [includes UTCF correction] 
       WARNING: UTCFINIT is zero.  This is suspicious.
       Where From?: (*SHORT BURST*) Expanded to TRIGTIME - 0 ms to TRIGTIME + 320 ms

  BAT 
    RA: 343.9156   Dec: -76.7628  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    0
     Image Trigger?:     NO
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    0

  Analysis Position:   [ source = BAT ]
    RA: 343.9156   Dec: -76.7628  [deg; J2000]

  Refined Position:   [ source = BAT pre-slew burst ]
    RA: 343.882419320282   Dec: -76.7855607246957  [deg; J2000]  
        { 22h 55m 31.8s , -76d 47' 08.0" }
         +/- 1.79662141374674 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.865114662409661 [arcmin] (formal 1-sigma fit error)
    SNR: 13.1707040723752
 
  Angular difference between the analysis and refined position is 1.439600 arcmin
 
  Partial Coding Fraction: 0.4453125    [ including projection effects ]

  Duration
     T90: 10 +/- 1
        Measured from: 0
                   to: 10     [s; relative to TRIGTIME]
     T50: 4 +/- 1
        Measured from: 2
                   to: 6     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 2     
                   to: 3     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0     
                   to: 12     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.657419   0.757096   0.435005   0.027109
           0.027985   0.028881   0.024376   0.018959 [error]
 Peak      0.073949   0.097382   0.070130   0.006439
           0.008421   0.008975   0.007706   0.005503 [error]

     [ fluence units of on-axis counts / fully illuminated detector ] 

======================================================================
 
 
====== Table of the duration information =============================
 
        Value   tstart    tstop
T100   12.000    0.000   12.000
T90    10.000    0.000   10.000
T50     4.000    2.000    6.000
Peak    1.000    2.000    3.000
 
 
====== 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: PL)
 
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      -2.007    -0.089      0.087       -           -               -         1.03e-02     -5.43e-04          5.38e-04      44.600   57
CPL     -1.543    -0.345      0.373       46.720     -14.126        13.870      1.81e-02     -6.00e-03          1.00e-02      39.170   56
 
 
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
 
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      -1.702     -0.171     0.167       -           -               -         1.75e-02     -1.84e-03          1.83e-03      43.760   57
CPL     -1.276     -0.541     0.704       85.261     -28.479       -85.261      2.89e-02     -1.26e-02          3.57e-02      42.380   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   2.55e-07  3.45e-07  3.44e-07  6.17e-07  1.14e-06  1.56e-06   erg/cm2
      90%_error_low -1.92e-08 -1.64e-08 -2.45e-08 -8.65e-08 -5.74e-08 -1.11e-07   erg/cm2
      90%_error_hi   1.97e-08  1.63e-08  2.45e-08  9.50e-08  5.77e-08  1.16e-07   erg/cm2
Peak flux       PL   8.77e-01  7.83e-01  4.81e-01  4.49e-01  2.33e+00  2.59e+00   ph/cm2/s
      90%_error_low -1.40e-01 -8.16e-02 -6.36e-02 -1.08e-01 -2.39e-01 -2.58e-01   ph/cm2/s
      90%_error_hi   1.46e-01  8.12e-02  6.30e-02  1.25e-01  2.40e-01  2.58e-01   ph/cm2/s
 
Fluence        CPL    N/A      N/A      N/A      N/A      N/A      N/A      erg/cm2
      90%_error_low -1.92e-08 -1.64e-08 -2.45e-08 -8.65e-08 -5.74e-08 -1.11e-07   erg/cm2
      90%_error_hi   1.97e-08  1.63e-08  2.45e-08  9.50e-08  5.77e-08  1.16e-07   erg/cm2
Peak flux      CPL   8.14e-01  8.17e-01  5.01e-01  2.88e-01  2.30e+00  2.42e+00   ph/cm2/s
      90%_error_low -1.66e-01 -9.54e-02 -7.09e-02 -1.39e-01 -2.45e-01 -2.93e-01   ph/cm2/s
      90%_error_hi   1.70e-01  9.84e-02  7.30e-02  2.07e-01  2.45e-01  3.47e-01   ph/cm2/s
 
======================================================================

Special notes of this burst

Image

Pre-slew 15.0-350.0 keV image (Event data)

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  343.8824   -76.7856   0.0145    43.1908   -19.4099         1.4295824     13.171 TRIG_00100380                 
 
Foreground time interval of the image:
  0.000  12.000 (delta_t =  12.000 [sec])
Background time interval of the image:
 -3.000   0.000 (delta_t =   3.000 [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.

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   12.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -2.00658     ( -0.0889396   0.0872365 )
Norm@50keV  : 1.03394E-02    ( -0.000542745   0.000538547 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.60 using 59 PHA bins.
# Reduced chi-squared =         0.7824 for     57 degrees of freedom 
# Null hypothesis probability =   8.838785e-01
 
Photon flux (15-150 keV)    in 12 sec: 1.55574 ( -0.07755  0.07778 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.14478e-06 ( -5.74237e-08  5.76833e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.000 sec. to   12.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.54316     ( -0.344593   0.373479 )
Epeak [keV] : 46.7198      ( -14.1257 13.8705 )
Norm@50keV  : 1.80587E-02    ( -0.00600144   0.0100411 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.17 using 59 PHA bins.
# Reduced chi-squared =         0.6994 for     56 degrees of freedom 
# Null hypothesis probability =   9.573428e-01
 
Photon flux (15-150 keV)    in 12 sec: 1.51356 ( -0.08305  0.08328 ) ph/cm2/s
Energy fluence (15-150 keV)             : 0 ( 0  0 ) ergs/cm2

1-s peak spectrum fit

Power-law model

Time interval is from    2.000 sec. to    3.000 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.70236     ( -0.171496   0.167174 )
Norm@50keV  : 1.75359E-02    ( -0.00184296   0.00182669 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.76 using 59 PHA bins.
# Reduced chi-squared =         0.7677 for     57 degrees of freedom 
# Null hypothesis probability =   9.011565e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.33099 ( -0.23938  0.23981 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.62357e-07 ( -1.76998e-08  1.77954e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    2.000 sec. to    3.000 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: -1.27586     ( -0.541474   0.704029 )
Epeak [keV] : 85.2615      ( -28.4787 -85.2615 )
Norm@50keV  : 2.89180E-02    ( -0.0126487   0.03567 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          42.38 using 59 PHA bins.
# Reduced chi-squared =         0.7568 for     56 degrees of freedom 
# Null hypothesis probability =   9.106095e-01
 
Photon flux (15-150 keV)    in 1 sec: 2.29531 ( -0.2452  0.24533 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.1521e-07 ( -2.38029e-08  2.05213e-08 ) 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 = 8.854051935195588E-01,

Spacecraft aspect plot

Bright

Pre-burst

 Time interval of the image: -3.000000 0.000000

# RAcent #  [deg] 135.5845 -40.5428 170.5385 -60.7765 186.6192 -62.8089 141.7687 -45.9866 42.4546 -80.8839 344.1583 -76.7538

Pre-slew

 Time interval of the image: 0.000000 12.000000

# RAcent #  [deg] 135.3615 -40.6168 170.4974 -60.8058 186.3458 -62.6153 156.7340 -24.6261 343.8824 -76.7855 202.2327 -12.4893 205.0804 -10.5759

Post-slew

 Time interval of the image:

IMY = 3.119723095888897E-01 source in the pre-burst/pre-slew/post-slew images

image of 15-350 keV band DECcent POSerr Theta Phi PeakCts SNR AngSep Name [deg] ['] [deg] [deg] ['] 41.7 28.6 99.8 0.0062 0.3 2.6 Vela X-1 4.1 0.9 -45.4 0.0384 2.8 11.3 Cen X-3 17.0 8.6 -80.9 0.0088 0.7 2.5 GX 301-2 1.9 21.6 100.4 0.1031 6.0 ------ UNKNOWN 2.2 36.2 -5.1 0.0950 5.1 ------ UNKNOWN 2.0 43.2 -19.3 0.1379 5.9 ------ UNKNOWN background subtracted image of 15-350 keV band DECcent POSerr Theta Phi PeakCts SNR AngSep Name [deg] ['] [deg] [deg] ['] 6.4 28.7 99.4 0.1857 1.8 8.5 Vela X-1 3.6 0.9 -43.4 -0.1963 -3.2 12.2 Cen X-3 0.0 8.4 -82.0 0.0019 0.0 12.6 GX 301-2 2.7 36.5 142.5 0.4992 4.2 ------ UNKNOWN 0.9 43.2 -19.4 1.4297 13.2 ------ UNKNOWN 2.7 53.2 -156.5 0.8152 4.3 ------ UNKNOWN 2.1 56.0 -154.1 1.4535 5.4 ------ UNKNOWN image of 15-350 keV band

Analysis Summary

Notes:

Image

Pre-slew 15.0-350.0 keV image (Event data)

Light Curves

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

Pre-burst Time interval of the image: -3.000000 0.000000 # RAcent # [deg] 135.5845 -40.5428 170.5385 -60.7765 186.6192 -62.8089 141.7687 -45.9866 42.4546 -80.8839 344.1583 -76.7538

Pre-slew Time interval of the image: 0.000000 12.000000 # RAcent # [deg] 135.3615 -40.6168 170.4974 -60.8058 186.3458 -62.6153 156.7340 -24.6261 343.8824 -76.7855 202.2327 -12.4893 205.0804 -10.5759

Post-slew Time interval of the image: IMY = 3.119723095888897E-01 source in the pre-burst/pre-slew/post-slew images

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

Pre-burst
Time interval of the image: -3.000000 0.000000 # RAcent # [deg] 135.5845 -40.5428 170.5385 -60.7765 186.6192 -62.8089 141.7687 -45.9866 42.4546 -80.8839 344.1583 -76.7538

Pre-slew
Time interval of the image: 0.000000 12.000000 # RAcent # [deg] 135.3615 -40.6168 170.4974 -60.8058 186.3458 -62.6153 156.7340 -24.6261 343.8824 -76.7855 202.2327 -12.4893 205.0804 -10.5759

Post-slew
Time interval of the image:
IMY = 3.119723095888897E-01 source in the pre-burst/pre-slew/post-slew images