batgrbproduct analysis for trigger=341749

batgrbproduct Analysis for Trigger=341749

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): Sat May  9 19:01:55 EDT 2015
             Host Name: bat1
   Current Working Dir: /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/trigger341749
======================================================================

  Trigger: 00341749      Segment: 000

  BAT Trigger Time: 255203227.2   [s; MET]
      Trigger Stop: 255203228.224   [s; MET]
               UTC: 2009-02-01T17:47:02.735980    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 92.0311957018397   Dec: -46.5864119988985  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.91
     Image Trigger?:     NO
     Rate S/N Ratio:     32.7719392163479  [ if not an image trigger ]
     Image S/N Ratio:    7.91

  Flight Position:   [ source = BAT ]
    RA: 92.0311957018397   Dec: -46.5864119988985  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 92.051690900999   Dec: -46.6051270235404  [deg; J2000]  
        { 06h 08m 12.4s , -46d 36' 18.5" }
         +/- 0.975326327289985 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.475306157058599 [arcmin] (formal 1-sigma fit error)
    SNR: 31.5223404408002
 
  Angular difference between Flight and Ground position is 1.405314 arcmin
 
  Partial Coding Fraction: 0.0859375    [ including projection effects ]

  Duration
     T90: 74.2640000283718 +/- 1.68066294507664
        Measured from: 1.44400000572205
                   to: 75.7080000340939     [s; relative to TRIGTIME]
     T50: 35.7640000283718 +/- 4.06205119510412
        Measured from: 13.4000000059605
                   to: 49.1640000343323     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 7.608000010252     
                   to: 8.608000010252     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -2.21199998259544     
                   to: 83.9280000030994     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     8.320725  14.775353  13.727905   3.885969
           0.217823   0.251722   0.241583   0.199082 [error]
 Peak      0.250958   0.550148   0.730744   0.290344
           0.028207   0.038532   0.043771   0.035406 [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 3.60e-06 6.98e-06 1.05e-05 3.42e-05 2.95e-05 5.53e-05   erg/cm2
              Error 1.59e-07 1.84e-07 2.56e-07 1.89e-06 6.52e-07 2.01e-06   erg/cm2
Peak flux Power-law 3.02e+00 4.28e+00 4.51e+00 8.78e+00 1.46e+01 2.06e+01   ph/cm2/s
              Error 4.17e-01 3.68e-01 3.30e-01 1.35e+00 1.02e+00 1.59e+00   ph/cm2/s
 
Fluence   Cutoff-PL 3.14e-06 7.15e-06 1.11e-05 1.96e-05 2.89e-05 4.09e-05   erg/cm2
              Error 2.07e-07 1.99e-07 3.17e-07 3.35e-06 6.93e-07 3.36e-06   erg/cm2
Peak flux Cutoff-PL 2.69e+00 4.39e+00 4.80e+00 5.93e+00 1.44e+01 1.78e+01   ph/cm2/s
              Error 5.20e-01 4.02e-01 4.39e-01 -------- 1.03e+00 2.59e+00   ph/cm2/s
 
Fluence        Band 3.02e-06 7.21e-06 1.09e-05 2.69e-05 2.88e-05 4.82e-05   erg/cm2
              Error 2.85e-07 2.89e-07 4.48e-07 -------- 6.92e-07 --------   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    1.410    0.038    -      -           3.56e-02 7.71e-04   67.380 57
CPL   0.904    0.169     125.7   25.3      5.91e-02 9.86e-03   38.540 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.925    0.113    -      -           1.27e-01 8.83e-03   50.500 57
CPL   0.494    0.456     207.7 4723.2      1.96e-01 9.10e-02   47.690 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: 80.832000 sec.
T50 in the 50-300 keV band: 37.824000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100   86.140   -2.212   83.928
T90    74.264    1.444   75.708
T50    35.764   13.400   49.164
Peak    1.000    7.608    8.608

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
   92.0517   -46.6051   0.0061    46.5215   -50.3193        44.5913567     31.522 TRIG_00341749                 
 
Foreground time interval of the image:
 -2.212  83.928 (delta_t =  86.140 [sec])
Background time interval of the image:
-239.200  -2.212 (delta_t = 236.988 [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 1.024000

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 1.024000

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 1.024000

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   -2.212 sec. to   83.928 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.41038     ( -0.0385215   0.0384557 )
Norm@50keV  : 3.55569E-02    ( -0.000771282   0.000771032 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.38 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     57 degrees of freedom 
# Null hypothesis probability =   1.635150e-01
 
Photon flux (15-150 keV)    in 86.14 sec: 4.34048 ( -0.106002  0.106277 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95335e-05 ( -6.52318e-07  6.52246e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from   -2.212 sec. to   83.928 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.904175     ( -0.172362   0.166248 )
Epeak [keV] : 125.692      ( -17.8104 32.7595 )
Norm@50keV  : 5.91182E-02    ( -0.00887747   0.0108337 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.54 using 59 PHA bins.
# Reduced chi-squared =         0.6883 for     56 degrees of freedom 
# Null hypothesis probability =   9.637684e-01
 
Photon flux (15-150 keV)    in 86.14 sec: 4.19473 ( -0.11381  0.11436 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.88979e-05 ( -6.94461e-07  6.90843e-07 ) ergs/cm2

Band function

Time interval is from   -2.212 sec. to   83.928 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.704935   ( -0.325594   1.28752 )
beta        : -1.69950    ( 1.70025   0.175618 )
Epeak [keV] : 96.4475      ( -48.483 51.4481 )
Norm@50keV   : 7.58938E-02    ( -0.0234691   0.434239 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.42 using 59 PHA bins.
# Reduced chi-squared =         0.6804 for     55 degrees of freedom 
# Null hypothesis probability =   9.665582e-01
 
Photon flux (15-150 keV)    in 86.14 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.87783e-05 ( -2.87777e-05  -6.92049e-07 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 18.4454  (  )
R^2/D10^2   : 0.244988  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         364.75 using 59 PHA bins.
# Reduced chi-squared =         6.3992 for     57 degrees of freedom 
# Null hypothesis probability =   1.918901e-46
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.426e-06   6.159e-08
25- 50  6.715e-06   2.188e-07
50-150  1.668e-05   5.944e-07
15-150  2.483e-05   5.987e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 18.3414       (-0.396152     0.395947)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         104.48 using 59 PHA bins.
# Reduced chi-squared =         1.8330 for     57 degrees of freedom 
# Null hypothesis probability =   1.278595e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.935e-06   1.008e-07
25- 50  7.570e-06   1.891e-07
50-150  1.660e-05   3.876e-07
15-150  2.811e-05   7.063e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.68817        (-0.807613      0.867258)
R1^2/D10^2  : 1.85841        (-0.458351      0.66246)
kT2 [keV]   : 29.4791        (-2.41221      3.20208)
R2^2/D10^2  : 3.80699E-02    (-0.0120397   0.0145225)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.37 using 59 PHA bins.
# Reduced chi-squared =         0.7339 for     55 degrees of freedom 
# Null hypothesis probability =   9.302479e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.758e-06   2.067e-07
25- 50  7.397e-06   3.476e-07
50-150  1.864e-05   1.081e-06
15-150  2.879e-05   1.357e-06

Peak spectrum fit

Power-law model

Time interval is from    7.608 sec. to    8.608 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.924586     ( -0.114233   0.112422 )
Norm@50keV  : 0.126866    ( -0.0088442   0.00882166 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.50 using 59 PHA bins.
# Reduced chi-squared =         0.8860 for     57 degrees of freedom 
# Null hypothesis probability =   7.157519e-01
 
Photon flux (15-150 keV)    in 1 sec: 14.5663 ( -1.02016  1.02106 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.41041e-06 ( -1.04854e-07  1.05071e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from    7.608 sec. to    8.608 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.493668     ( -0.488211   0.423832 )
Epeak [keV] : 207.680      ( -79.7101 9366.78 )
Norm@50keV  : 0.195993    ( -0.064315   0.117689 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.69 using 59 PHA bins.
# Reduced chi-squared =         0.8517 for     56 degrees of freedom 
# Null hypothesis probability =   7.774123e-01
 
Photon flux (15-150 keV)    in 1 sec: 14.4399 ( -1.0287  1.0292 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.39913e-06 ( 0  0 ) ergs/cm2

Band function

Time interval is from    7.608 sec. to    8.608 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99998   ( -4.99998   -4.99998 )
beta        : -1.02683    ( -0.136881   0.134082 )
Epeak [keV] : 31.9848      ( -31.9848 5.54194 )
Norm@50keV   : 2006.71    ( -136.763   1.79861e+07 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          47.86 using 59 PHA bins.
# Reduced chi-squared =         0.8702 for     55 degrees of freedom 
# Null hypothesis probability =   7.416566e-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]    : 23.6402  (-2.10118  2.38515)
R^2/D10^2   : 0.438649  (-0.112309   0.146195)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          76.08 using 59 PHA bins.
# Reduced chi-squared =          1.335 for     57 degrees of freedom 
# Null hypothesis probability =   4.645758e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.383e-08   6.065e-09
25- 50  2.414e-07   2.660e-08
50-150  1.007e-06   1.115e-07
15-150  1.292e-06   1.155e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 57.0534       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         127.98 using 59 PHA bins.
# Reduced chi-squared =         2.2452 for     57 degrees of freedom 
# Null hypothesis probability =   2.265290e-07
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.421e-07   1.235e-08
25- 50  2.733e-07   3.065e-08
50-150  5.994e-07   2.192e-07
15-150  1.015e-06   2.759e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.72493        (-2.43118      3.33306)
R1^2/D10^2  : 4.44062        (-2.56372      7.6735)
kT2 [keV]   : 34.7208        (-6.28332      14.0287)
R2^2/D10^2  : 0.115658    (-0.0754993   0.107345)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          46.36 using 59 PHA bins.
# Reduced chi-squared =         0.8429 for     55 degrees of freedom 
# Null hypothesis probability =   7.901629e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.456e-08   3.762e-08
25- 50  2.604e-07   9.484e-08
50-150  1.072e-06   4.478e-07
15-150  1.416e-06   4.828e-07

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: 1.41038     ( -0.0385215   0.0384557 )
Norm@50keV  : 3.55569E-02    ( -0.000771282   0.000771032 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          67.38 using 59 PHA bins.
# Reduced chi-squared =          1.182 for     57 degrees of freedom 
# Null hypothesis probability =   1.635150e-01
 
Photon flux (15-150 keV)    in 86.14 sec: 4.34048 ( -0.106002  0.106277 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95335e-05 ( -6.52318e-07  6.52246e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.904175     ( -0.172362   0.166248 )
Epeak [keV] : 125.692      ( -17.8104 32.7595 )
Norm@50keV  : 5.91182E-02    ( -0.00887747   0.0108337 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.54 using 59 PHA bins.
# Reduced chi-squared =         0.6883 for     56 degrees of freedom 
# Null hypothesis probability =   9.637684e-01
 
Photon flux (15-150 keV)    in 86.14 sec: 4.19473 ( -0.11381  0.11436 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.88979e-05 ( -6.94461e-07  6.90843e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.704935   ( -0.325594   1.28752 )
beta        : -1.69950    ( 1.70025   0.175618 )
Epeak [keV] : 96.4475      ( -48.483 51.4481 )
Norm@50keV   : 7.58938E-02    ( -0.0234691   0.434239 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          37.42 using 59 PHA bins.
# Reduced chi-squared =         0.6804 for     55 degrees of freedom 
# Null hypothesis probability =   9.665582e-01
 
Photon flux (15-150 keV)    in 86.14 sec:  (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.87783e-05 ( -2.87777e-05  -6.92049e-07 ) ergs/cm2

S(25-50 keV) vs. S(50-100 keV) plot

S(25-50 keV)  = 6.98e-06
S(50-100 keV) = 1.05e-05

T90 vs. Hardness ratio plot

T90                                   = 74.2640000283718 sec.
Hardness ratio (energy fluence ratio) = 1.5043

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.77573
Count Ratio (50-100 keV) / (15-25 keV) = 1.64984

Mask shadow pattern

IMX = 6.733535419319304E-01, IMY = 8.116152585162864E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 1.024000

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:
-239.200000 -2.212000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.5398 -40.5917    2.6  19.5  -83.5   1.0678   4.5    2.3	Vela X-1                      
 96.7665   8.3506    3.1  52.6   24.2   3.4627   3.7 ------	UNKNOWN                       
124.4789  -4.8644    2.7  23.1   38.4   0.9569   4.3 ------	UNKNOWN                       
 79.4693 -35.2583    3.6  54.8  -34.5   5.0188   3.2 ------	UNKNOWN

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

Time interval of the image:
-2.212000 83.928000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.7157 -40.4252   28.3  19.3  -83.8   0.0956   0.4   11.5	Vela X-1                      
153.5644  16.4703    2.9  40.1  103.3   2.2034   4.0 ------	UNKNOWN                       
144.2038   3.1652    2.9  25.0   92.1   0.8368   4.0 ------	UNKNOWN                       
 80.8277 -16.6387    2.0  56.6  -12.0   3.7526   5.7 ------	UNKNOWN                       
203.7373 -32.7723    3.5  56.2 -160.0   2.8597   3.3 ------	UNKNOWN                       
 92.0517 -46.6052    0.4  46.5  -50.3  44.5689  29.4 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
727.100610 962.853200
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
135.6769 -40.6020    4.5  49.7   -4.6   1.2611   2.6    7.3	Vela X-1                      
217.0410  26.0005    3.2  52.0 -169.7   1.8978   3.6 ------	UNKNOWN                       
155.2473 -52.6597    3.0  50.8  -28.0   2.1051   3.8 ------	UNKNOWN                       
225.6263   6.0516    2.8  53.4 -142.5   4.4287   4.1 ------	UNKNOWN

Plot creation:
Sun May 31 04:54:31 EDT 2015