batgrbproduct analysis for trigger=525068

batgrbproduct Analysis for Trigger=525068

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 13 04:03:33 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger525068
======================================================================

  Trigger: 00525068      Segment: 000

  BAT Trigger Time: 362269182.016   [s; MET]
      Trigger Stop: 362269183.04   [s; MET]
               UTC: 2012-06-24T22:19:33.661820    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 170.941840070123   Dec: 8.93369375766324  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    7.74
     Image Trigger?:     NO
     Rate S/N Ratio:     21.2602916254693  [ if not an image trigger ]
     Image S/N Ratio:    7.74

  Flight Position:   [ source = BAT ]
    RA: 170.941840070123   Dec: 8.93369375766324  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 170.882824115002   Dec: 8.93146303341047  [deg; J2000]  
        { 11h 23m 31.9s , +08d 55' 53.3" }
         +/- 0.48399954807925 [arcmin] (estimated 90% radius based on SNR)
         +/- 0.110939663549127 [arcmin] (formal 1-sigma fit error)
    SNR: 85.7708810482761
 
  Angular difference between Flight and Ground position is 3.500571 arcmin
 
  Partial Coding Fraction: 0.8671875    [ including projection effects ]

  Duration
     T90: 179.663999915123 +/- 1.46002191717733
        Measured from: 7.16400003433228
                   to: 186.827999949455     [s; relative to TRIGTIME]
     T50: 128.143999934196 +/- 1.46369944835646
        Measured from: 39.1080000400543
                   to: 167.251999974251     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 138.056000053883     
                   to: 139.056000053883     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -15.12399995327     
                   to: 192.772000014782     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     8.853346  14.344203  14.094987   4.862000
           0.106657   0.119570   0.115880   0.096811 [error]
 Peak      0.129778   0.237015   0.274322   0.083077
           0.008267   0.010104   0.010501   0.008339 [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 2.54e-06 5.90e-06 1.09e-05 4.82e-05 2.96e-05 6.75e-05   erg/cm2
              Error 8.67e-08 1.18e-07 1.53e-07 1.68e-06 4.02e-07 1.69e-06   erg/cm2
Peak flux Power-law 1.18e+00 1.64e+00 1.68e+00 3.13e+00 5.49e+00 7.62e+00   ph/cm2/s
              Error 1.06e-01 8.84e-02 8.27e-02 3.37e-01 2.45e-01 3.91e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.54e-06 5.91e-06 1.09e-05 4.77e-05 2.96e-05 6.70e-05   erg/cm2
              Error 8.61e-08 1.16e-07 1.53e-07 1.31e-06 4.02e-07 1.85e-06   erg/cm2
Peak flux Cutoff-PL 1.04e+00 1.67e+00 1.77e+00 2.00e+00 5.39e+00 6.48e+00   ph/cm2/s
              Error 1.36e-01 9.60e-02 1.04e-01 6.00e-01 2.55e-01 6.49e-01   ph/cm2/s
 
Fluence        Band -------- -------- -------- -------- -------- --------   erg/cm2
              Error -------- -------- -------- -------- -------- --------   erg/cm2
Peak flux      Band 1.04e+00 1.67e+00 1.77e+00 2.00e+00 5.39e+00 6.49e+00   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    1.116    0.027    -      -           1.37e-02 2.04e-04   38.770 57
CPL   1.112    0.027    9999.4    0.0      1.37e-02 4.15e-04   39.120 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    0.966    0.078    -      -           4.78e-02 2.11e-03   51.340 57
CPL   0.501    0.329     185.9  152.1      7.68e-02 2.57e-02   44.820 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: 178.880000 sec.
T50 in the 50-300 keV band: 127.168000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  207.896  -15.124  192.772
T90   179.664    7.164  186.828
T50   128.144   39.108  167.252
Peak    1.000  138.056  139.056

Click here for the BAT GCN circular template

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
  170.8828     8.9315   0.0022    15.6865  -108.9418        23.9560912     85.771 TRIG_00525068                 
 
Foreground time interval of the image:
-15.124 139.885 (delta_t = 155.009 [sec])
Background time interval of the image:
-239.016 -15.124 (delta_t = 223.892 [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)

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  -15.124 sec. to  192.772 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.11617     ( -0.0270059   0.0268945 )
Norm@50keV  : 1.36740E-02    ( -0.00020404   0.000203042 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.77 using 59 PHA bins.
# Reduced chi-squared =         0.6801 for     57 degrees of freedom 
# Null hypothesis probability =   9.692294e-01
 
Photon flux (15-150 keV)    in 207.9 sec: 1.58866 ( -0.0257845  0.0259414 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95707e-05 ( -4.02436e-07  4.02538e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -15.124 sec. to  192.772 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.11159     ( -0.0283388   0.0260507 )
Epeak [keV] : 9999.36      ( -9999.36 -9999.36 )
Norm@50keV  : 1.37481E-02    ( -0.000190892   0.000639305 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.12 using 59 PHA bins.
# Reduced chi-squared =         0.6986 for     56 degrees of freedom 
# Null hypothesis probability =   9.578205e-01
 
Photon flux (15-150 keV)    in 207.9 sec: 1.58771 ( -0.02582  0.02587 ) ph/cm2/s
Energy fluence (15-150 keV)             : 2.95754e-05 ( -3.99168e-07  4.0395e-07 ) ergs/cm2

Band function

Time interval is from  -15.124 sec. to  192.772 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.766749   ( 0.847056   5.8378 )
beta        : -1.11792    ( -0.0269344   0.0270108 )
Epeak [keV] : 92.0202      ( -62.6305 -62.6305 )
Norm@50keV   : 2.43950E-02    ( -0.0101751   475407 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          38.56 using 59 PHA bins.
# Reduced chi-squared =         0.7011 for     55 degrees of freedom 
# Null hypothesis probability =   9.547407e-01
 
Photon flux (15-150 keV)    in 207.9 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]    : 24.3543  (  )
R^2/D10^2   : 3.86714E-02  (   )
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1031.42 using 59 PHA bins.
# Reduced chi-squared =        18.0951 for     57 degrees of freedom 
# Null hypothesis probability =  7.691724e-179
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.398e-07   2.568e-08
25- 50  4.700e-06   1.112e-07
50-150  2.074e-05   3.555e-07
15-150  2.628e-05   4.054e-07

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 7.14613       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =        1001.54 using 59 PHA bins.
# Reduced chi-squared =        17.5710 for     57 degrees of freedom 
# Null hypothesis probability =  1.055181e-172
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.699e-06   6.341e-08
25- 50  7.116e-06   1.175e-07
50-150  1.561e-05   2.422e-07
15-150  2.642e-05   3.950e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 8.95085        (-0.546227      0.576808)
R1^2/D10^2  : 0.588008        (-0.108046      0.138031)
kT2 [keV]   : 39.8354        (-2.33109      2.81305)
R2^2/D10^2  : 7.19935E-03    (-0.00134534   0.0014841)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.27 using 59 PHA bins.
# Reduced chi-squared =         0.9140 for     55 degrees of freedom 
# Null hypothesis probability =   6.555978e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.209e-06   1.324e-07
25- 50  6.101e-06   1.684e-07
50-150  2.142e-05   5.353e-07
15-150  2.973e-05   6.133e-07

Peak spectrum fit

Power-law model

Time interval is from  138.056 sec. to  139.056 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.966001     ( -0.0778721   0.0773949 )
Norm@50keV  : 4.77714E-02    ( -0.00211306   0.00211202 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.34 using 59 PHA bins.
# Reduced chi-squared =         0.9007 for     57 degrees of freedom 
# Null hypothesis probability =   6.864192e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.49144 ( -0.244908  0.245039 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.22955e-07 ( -2.61174e-08  2.61839e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from  138.056 sec. to  139.056 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 0.500760     ( -0.342004   0.316328 )
Epeak [keV] : 185.881      ( -54.9171 249.223 )
Norm@50keV  : 7.67773E-02    ( -0.0207001   0.0307 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          44.82 using 59 PHA bins.
# Reduced chi-squared =         0.8004 for     56 degrees of freedom 
# Null hypothesis probability =   8.581297e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.38882 ( -0.25467  0.25443 ) ph/cm2/s
Energy fluence (15-150 keV)             : 5.1149e-07 ( -2.7867e-08  2.775e-08 ) ergs/cm2

Band function

Time interval is from  138.056 sec. to  139.056 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99997   ( -4.99997   -4.99997 )
beta        : -0.983674    ( -0.0811842   0.080822 )
Epeak [keV] : 23.8285      ( -23.8285 5.04406 )
Norm@50keV   : 4113.90    ( -180.882   6.86352e+06 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          50.37 using 59 PHA bins.
# Reduced chi-squared =         0.9158 for     55 degrees of freedom 
# Null hypothesis probability =   6.518486e-01
 
Photon flux (15-150 keV)    in 1 sec: 5.38965 (    ) 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]    : 22.1755  (-1.29187  1.40531)
R^2/D10^2   : 0.195533  (-0.0336574   0.0398744)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =         100.79 using 59 PHA bins.
# Reduced chi-squared =         1.7683 for     57 degrees of freedom 
# Null hypothesis probability =   3.120523e-04
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.773e-08   1.615e-09
25- 50  9.419e-08   5.935e-09
50-150  3.461e-07   2.650e-08
15-150  4.581e-07   2.630e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.363       (      )
Norm        : 21.6140       (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =         193.34 using 59 PHA bins.
# Reduced chi-squared =         3.3919 for     57 degrees of freedom 
# Null hypothesis probability =   9.927930e-17
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  5.382e-08   2.640e-09
25- 50  1.035e-07   5.595e-09
50-150  2.271e-07   4.325e-08
15-150  3.844e-07   3.110e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.80515        (-1.61473      2.11073)
R1^2/D10^2  : 3.37749        (-1.92429      5.60015)
kT2 [keV]   : 29.2271        (-3.18042      4.77886)
R2^2/D10^2  : 7.48298E-02    (-0.0296241   0.0347833)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          43.03 using 59 PHA bins.
# Reduced chi-squared =         0.7824 for     55 degrees of freedom 
# Null hypothesis probability =   8.793041e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.454e-08   9.805e-09
25- 50  9.359e-08   1.256e-08
50-150  3.825e-07   4.105e-08
15-150  5.106e-07   5.945e-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: 1.19787     ( -0.0315644   0.031458 )
Norm@50keV  : 9.49021E-03    ( -0.000158039   0.000157603 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          27.75 using 59 PHA bins.
# Reduced chi-squared =         0.4869 for     57 degrees of freedom 
# Null hypothesis probability =   9.996191e-01
 
Photon flux (15-150 keV)    in 155 sec: 1.11362 ( -0.0206123  0.020712 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.49327e-05 ( -2.40033e-07  2.40163e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.19282     ( -0.0317986   0.0317073 )
Epeak [keV] : 9996.82      ( -9997.51 -9997.51 )
Norm@50keV  : 9.53621E-03    ( -0.000156085   0.000688134 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          27.86 using 59 PHA bins.
# Reduced chi-squared =         0.4975 for     56 degrees of freedom 
# Null hypothesis probability =   9.994100e-01
 
Photon flux (15-150 keV)    in 155 sec: 1.11294 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.48925e-05 ( -2.69375e-07  3.57693e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.639261   ( 0.819895   5.72257 )
beta        : -1.19998    ( -0.0341193   0.0325721 )
Epeak [keV] : 59.4277      ( -60.2053 267.599 )
Norm@50keV   : 2.48318E-02    ( -0.0156428   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          27.50 using 59 PHA bins.
# Reduced chi-squared =         0.5000 for     55 degrees of freedom 
# Null hypothesis probability =   9.992946e-01
 
Photon flux (15-150 keV)    in 155 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)  = 5.90e-06
S(50-100 keV) = 1.09e-05

T90 vs. Hardness ratio plot

T90                                   = 179.663999915123 sec.
Hardness ratio (energy fluence ratio) = 1.84746

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.6202
Count Ratio (50-100 keV) / (15-25 keV) = 1.59205

Mask shadow pattern

IMX = -9.116022833228478E-02, IMY = 2.656252137694277E-01

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:
-239.016000 -15.124000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
227.7513   7.2905    3.0  40.6   71.4   2.9745   3.8 ------	UNKNOWN                       
231.5882  48.6514    2.2  54.2   16.7   5.4234   5.3 ------	UNKNOWN                       
212.4656  44.7032    2.4  41.7    9.3   1.4665   4.9 ------	UNKNOWN                       
148.8587 -22.8481    2.4  49.2 -149.9   2.1765   4.8 ------	UNKNOWN

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

Time interval of the image:
-15.124000 139.884590
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
232.6529  42.9948    3.2  52.1   23.4   5.3529   3.6 ------	UNKNOWN                       
189.0461 -42.5255    2.7  52.0  159.5   5.5157   4.3 ------	UNKNOWN                       
215.3490  58.1905    3.1  53.4   -0.1   3.4395   3.7 ------	UNKNOWN                       
170.8828   8.9315    0.1  15.7 -108.9  23.9556  85.8 ------	UNKNOWN                       
192.3601  59.5283    2.6  50.3  -14.7   2.7196   4.4 ------	UNKNOWN                       
162.3136  15.4163    2.4  24.6  -91.9   1.6955   4.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
264.084590 439.784600
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
186.5878 -62.7182    2.7  40.8  -78.9   3.5913   4.2    3.7	GX 301-2                      
244.9791 -15.6383    0.6  31.7   41.4   5.2342  19.1    0.1	Sco X-1                       
255.9887 -37.8348    0.6   8.3   64.8   3.1737  18.8    0.6	4U 1700-377                   
256.6624 -36.3518    5.5   9.9   67.4   0.3761   2.1   11.8	GX 349+2                      
262.9888 -24.9014    5.5  22.2   79.4   0.4908   2.1    9.4	GX 1+4                        
264.8556 -44.6463    0.0   7.0  141.3   0.1301   0.7   12.7	4U 1735-44                    
270.3348 -25.1231    4.4  24.3   95.5   0.6435   2.7    3.8	GX 5-1                        
270.1825 -25.6387    5.5  23.8   95.8   0.5185   2.2    9.0	GRS 1758-258                  
273.9379 -14.1192    7.1  35.7   92.7   0.7865   1.6    6.3	GX 17+2                       
275.9968 -30.4327    4.3  22.5  113.4   0.6266   2.7    5.4	H1820-303                     
284.9686 -24.9414   42.8  31.9  118.9  -0.0870  -0.3    3.9	HT1900.1-2455                 
263.1042 -33.8160    3.9  13.7   89.2   0.5502   2.9    5.8	GX 354-0                      
  6.4305 -70.8028    3.2  53.2 -142.1   3.9363   3.6 ------	UNKNOWN                       
  6.6320 -67.5154    4.4  55.3 -145.3   3.9733   2.6 ------	UNKNOWN                       
186.7600 -36.5756    3.8  50.6  -44.6   2.8618   3.1 ------	UNKNOWN                       
 13.4432 -82.0456    2.6  48.0 -129.1   3.5699   4.6 ------	UNKNOWN

Plot creation:
Sat May 30 19:23:06 EDT 2015