batgrbproduct analysis for trigger=311762

batgrbproduct Analysis for Trigger=311762

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): Mon Jan 20 02:04:31 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger311762
======================================================================

  Trigger: 00311762      Segment: 000

  BAT Trigger Time: 232589829.824   [s; MET]
      Trigger Stop: 232589830.336   [s; MET]
               UTC: 2008-05-16T00:17:07.030760    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 120.629533847551   Dec: -26.1760175623149  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    8.61
     Image Trigger?:     NO
     Rate S/N Ratio:     15.0665191733194  [ if not an image trigger ]
     Image S/N Ratio:    8.61

  Flight Position:   [ source = BAT ]
    RA: 120.629533847551   Dec: -26.1760175623149  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 120.661366398219   Dec: -26.1488751984184  [deg; J2000]  
        { 08h 02m 38.7s , -26d 08' 56.0" }
         +/- 2.17010907859261 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.21551020393041 [arcmin] (formal 1-sigma fit error)
    SNR: 10.0561196413796
 
  Angular difference between Flight and Ground position is 2.364505 arcmin
 
  Partial Coding Fraction: 0.3828125    [ including projection effects ]

  Duration
     T90: 5.76400002837181 +/- 0.223212908197741
        Measured from: 0.15599998831749
                   to: 5.9200000166893     [s; relative to TRIGTIME]
     T50: 5.0160000026226 +/- 0.415716250511535
        Measured from: 0.444000005722046
                   to: 5.46000000834465     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 0.0519999861717224     
                   to: 1.05199998617172     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: 0.0839999914169312     
                   to: 6.05599999427795     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.142337   0.167476   0.096463   0.016133
           0.021073   0.022218   0.019634   0.016992 [error]
 Peak      0.041052   0.080558   0.057517   0.010654
           0.009324   0.010127   0.008997   0.007418 [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 5.01e-08 7.58e-08 8.59e-08 1.85e-07 2.67e-07 3.97e-07   erg/cm2
              Error 1.07e-08 1.08e-08 1.94e-08 8.52e-08 4.51e-08 1.04e-07   erg/cm2
Peak flux Power-law 5.43e-01 5.60e-01 4.08e-01 4.78e-01 1.70e+00 1.99e+00   ph/cm2/s
              Error 1.32e-01 8.78e-02 7.16e-02 1.65e-01 2.52e-01 2.92e-01   ph/cm2/s
 
Fluence   Cutoff-PL 4.87e-08 7.84e-08 8.64e-08 1.19e-07 2.61e-07 3.32e-07   erg/cm2
              Error 1.20e-08 1.38e-08 2.04e-08 -------- 4.95e-08 1.40e-07   erg/cm2
Peak flux Cutoff-PL 4.47e-01 6.31e-01 4.45e-01 1.56e-01 1.64e+00 1.68e+00   ph/cm2/s
              Error 1.55e-01 1.15e-01 8.67e-02 -------- 2.59e-01 3.09e-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    1.820    0.263    -      -           4.86e-03 8.06e-04   59.140 57
CPL   1.557    0.944      76.6   -0.1      6.78e-03 0.00e+00   58.930 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.457    0.231    -      -           1.37e-02 2.02e-03   63.890 57
CPL   0.268    1.260      71.3   91.4      5.64e-02 1.57e-01   60.190 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: 0.576000 sec.
T50 in the 50-300 keV band: 0.320000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100    5.972    0.084    6.056
T90     5.764    0.156    5.920
T50     5.016    0.444    5.460
Peak    1.000    0.052    1.052

Click here for the BAT GCN circular template

Image

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

#   RAcent    DECcent   POSerr    Theta     Phi              Peak Cts       SNR   Name
  120.6614   -26.1489   0.0191    38.7053   154.8100         0.4024027     10.056 TRIG_00311762                 
 
Foreground time interval of the image:
  0.084   6.056 (delta_t =   5.972 [sec])
Background time interval of the image:
-239.824 -65.655 (delta_t = 174.169 [sec])
-64.824   0.084 (delta_t =  64.908 [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    0.084 sec. to    6.056 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.82046     ( -0.254713   0.270577 )
Norm@50keV  : 4.86370E-03    ( -0.000818354   0.000794245 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.14 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.973626e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.675597 ( -0.0969042  0.0969645 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.6723e-07 ( -4.46637e-08  4.55556e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.084 sec. to    6.056 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55746     ( -1.18775   0.699756 )
Epeak [keV] : 76.5674      ( -76.3547 -76.5674 )
Norm@50keV  : 6.77901E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.93 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     56 degrees of freedom 
# Null hypothesis probability =   3.687305e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.668993 ( -0.100128  0.09957 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61411e-07 ( -4.97079e-08  4.93843e-08 ) ergs/cm2

Band function

Time interval is from    0.084 sec. to    6.056 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.55425   ( 1.5525   6.49224 )
beta        : -2.23331    ( 2.23227   11.5635 )
Epeak [keV] : 76.0685      ( -75.5142 -75.5142 )
Norm@50keV   : 6.80614E-03    ( -0.00272649   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.93 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     55 degrees of freedom 
# Null hypothesis probability =   3.337813e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.669157 (    ) 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]    : 11.4484  (-1.89587  2.33192)
R^2/D10^2   : 0.191949  (-0.0955138   0.184264)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          70.56 using 59 PHA bins.
# Reduced chi-squared =          1.238 for     57 degrees of freedom 
# Null hypothesis probability =   1.069621e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.161e-08   9.086e-09
25- 50  9.399e-08   2.138e-08
50-150  7.169e-08   2.485e-08
15-150  1.973e-07   3.983e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 97.8799       (-38.8812      100.202)
Norm        : 2.99760       (-0.553901     0.730851)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.11 using 59 PHA bins.
# Reduced chi-squared =          1.037 for     57 degrees of freedom 
# Null hypothesis probability =   3.984233e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.678e-08   9.361e-09
25- 50  8.054e-08   1.436e-08
50-150  1.289e-07   6.866e-08
15-150  2.563e-07   7.349e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 5.79267        (-3.65569      3.96167)
R1^2/D10^2  : 1.55401        (-1.17629      173.219)
kT2 [keV]   : 20.2265        (-8.29179      59.767)
R2^2/D10^2  : 1.75005E-02    (-0.0154666   0.0598417)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.42 using 59 PHA bins.
# Reduced chi-squared =          1.099 for     55 degrees of freedom 
# Null hypothesis probability =   2.864404e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.748e-08   2.605e-08
25- 50  7.742e-08   4.049e-08
50-150  1.279e-07   7.358e-08
15-150  2.528e-07   1.325e-07

Peak spectrum fit

Power-law model

Time interval is from    0.052 sec. to    1.052 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.45682     ( -0.23077   0.231912 )
Norm@50keV  : 1.37446E-02    ( -0.00202049   0.00201417 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          63.89 using 59 PHA bins.
# Reduced chi-squared =          1.121 for     57 degrees of freedom 
# Null hypothesis probability =   2.473386e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.69670 ( -0.251889  0.252493 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.31363e-07 ( -2.07471e-08  2.09467e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from    0.052 sec. to    1.052 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.267762     ( -1.4537   1.06561 )
Epeak [keV] : 71.2597      ( -18.0807 164.644 )
Norm@50keV  : 5.63803E-02    ( -0.0563854   0.25818 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          60.19 using 59 PHA bins.
# Reduced chi-squared =          1.075 for     56 degrees of freedom 
# Null hypothesis probability =   3.267838e-01
 
Photon flux (15-150 keV)    in 1 sec: 1.63676 ( -0.25952  0.25931 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.21636e-07 ( -2.28763e-08  2.3192e-08 ) ergs/cm2

Band function

Time interval is from    0.052 sec. to    1.052 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 0.965026   ( -2.14769   -0.994337 )
beta        : -1.98150    ( 1.98269   0.504922 )
Epeak [keV] : 48.8723      ( -19.1377 69.7168 )
Norm@50keV   : 0.340665    ( -0.395932   105.494 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.88 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     55 degrees of freedom 
# Null hypothesis probability =   3.353274e-01
 
Photon flux (15-150 keV)    in 1 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.24385e-07 ( -1.24378e-07  -2.1503e-08 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 14.6015  (-2.18002  2.67546)
R^2/D10^2   : 0.224764  (-0.101919   0.174776)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          64.13 using 59 PHA bins.
# Reduced chi-squared =          1.125 for     57 degrees of freedom 
# Null hypothesis probability =   2.408135e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.007e-08   2.619e-09
25- 50  3.903e-08   7.565e-09
50-150  5.594e-08   1.661e-08
15-150  1.050e-07   2.160e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.355       (-81.7662      -199.36)
Norm        : 7.05625       (-1.01602     1.01746)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.58 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     57 degrees of freedom 
# Null hypothesis probability =   2.847216e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.757e-08   9.995e-09
25- 50  3.380e-08   1.894e-08
50-150  7.413e-08   4.152e-08
15-150  1.255e-07   6.910e-08

Double BB

R1^2/D10^2  : 3.50193E-03        (      )
kT2 [keV]   : 10.9409        (-5.53816      3.42165)
R2^2/D10^2  : 0.483677    (-0.279449   2.09083)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.81 using 59 PHA bins.
#Fit statistic : Chi-Squared =          58.95 using 59 PHA bins.
#Fit statistic : Chi-Squared =          58.94 using 59 PHA bins.
# Reduced chi-squared =          1.087 for     55 degrees of freedom 
# Reduced chi-squared =          1.072 for     55 degrees of freedom 
# Reduced chi-squared =          1.072 for     55 degrees of freedom 
# Null hypothesis probability =   3.053464e-01
# Null hypothesis probability =   3.332134e-01
# Null hypothesis probability =   3.335996e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.325e-08   8.180e-09
25- 50  3.674e-08   2.070e-08
50-150  6.542e-08   3.899e-08
15-150  1.154e-07   6.150e-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: 1.82046     ( -0.254713   0.270577 )
Norm@50keV  : 4.86370E-03    ( -0.000818354   0.000794245 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.14 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     57 degrees of freedom 
# Null hypothesis probability =   3.973626e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.675597 ( -0.0969042  0.0969645 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.6723e-07 ( -4.46637e-08  4.55556e-08 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.55746     ( -1.18775   0.699756 )
Epeak [keV] : 76.5674      ( -76.3547 -76.5674 )
Norm@50keV  : 6.77901E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.93 using 59 PHA bins.
# Reduced chi-squared =          1.052 for     56 degrees of freedom 
# Null hypothesis probability =   3.687305e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.668993 ( -0.100128  0.09957 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.61411e-07 ( -4.97079e-08  4.93843e-08 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.55425   ( 1.5525   6.49222 )
beta        : -2.23331    ( 2.23227   11.5635 )
Epeak [keV] : 76.0685      ( -75.5142 -75.5142 )
Norm@50keV   : 6.80614E-03    ( -0.00272649   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.93 using 59 PHA bins.
# Reduced chi-squared =          1.071 for     55 degrees of freedom 
# Null hypothesis probability =   3.337813e-01
 
Photon flux (15-150 keV)    in 5.972 sec: 0.669157 (    ) 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)  = 7.58e-08
S(50-100 keV) = 8.59e-08

T90 vs. Hardness ratio plot

T90                                   = 5.76400002837181 sec.
Hardness ratio (energy fluence ratio) = 1.13325

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.17662
Count Ratio (50-100 keV) / (15-25 keV) = 0.677709

Mask shadow pattern

IMX = -7.251013151863204E-01, IMY = -3.410517312909804E-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:
-239.824000 -65.654800
-64.824000 0.084000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6305  22.0240    0.5  35.0  -92.2  10.4337  24.3    0.6	Crab                          
158.9303  18.7139    2.8  38.8   52.8   1.7250   4.2 ------	UNKNOWN                       
164.9035  57.4247    3.2  56.7    4.7   3.7985   3.6 ------	UNKNOWN                       
108.9960  -1.6591    2.9  17.3 -167.1   0.6223   3.9 ------	UNKNOWN                       
148.1573  66.5624    2.6  57.4   -9.6   3.5508   4.3 ------	UNKNOWN                       
 88.1625 -28.2782    2.6  50.6 -167.0   1.8318   4.5 ------	UNKNOWN

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

Time interval of the image:
0.084000 6.056000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.4855  22.0936    5.5  35.2  -92.1  -0.1004  -2.1    9.5	Crab                          
119.1174 -31.3095    2.2  43.8  157.0   0.2815   5.3 ------	UNKNOWN                       
120.6613 -26.1489    1.1  38.7  154.8   0.4021  10.0 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
66.876610 962.274200
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5126 -40.5765    1.1  19.0  115.9   5.4663  10.7    1.5	Vela X-1                      
 89.9315 -67.5319    2.3  45.4  168.6   5.3786   5.1 ------	UNKNOWN                       
 70.1656 -69.7376    2.8  52.3  172.4   6.6566   4.1 ------	UNKNOWN                       
108.4363 -46.0654    2.9  22.2  175.6   1.7083   3.9 ------	UNKNOWN                       
 53.7984 -66.0701    4.4  56.9  179.2   8.3807   2.7 ------	UNKNOWN                       
 87.6726 -41.9093    2.7  31.3 -156.0   2.2792   4.3 ------	UNKNOWN                       
137.7218  28.9122    2.8  57.5   -9.5  10.5551   4.1 ------	UNKNOWN                       
105.1478   5.7571    2.2  35.3  -54.7   3.8796   5.3 ------	UNKNOWN

Plot creation:
Sun May 31 07:36:15 EDT 2015