batgrbproduct analysis for trigger=177408

batgrbproduct Analysis for Trigger=177408

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): Wed Jan 22 18:53:53 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger177408
======================================================================

  Trigger: 00177408      Segment: 000

  BAT Trigger Time: 159023281.6   [s; MET]
      Trigger Stop: 159023289.792   [s; MET]
               UTC: 2006-01-15T13:08:00.643040    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 54.0444635355556   Dec: 17.3440437273643  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    10.48
     Image Trigger?:     NO
     Rate S/N Ratio:     13.856406460551  [ if not an image trigger ]
     Image S/N Ratio:    10.48

  Flight Position:   [ source = BAT ]
    RA: 54.0444635355556   Dec: 17.3440437273643  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 54.0158303110988   Dec: 17.3351266547733  [deg; J2000]  
        { 03h 36m 03.8s , +17d 20' 06.5" }
         +/- 1.9716186502833 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.01804246683094 [arcmin] (formal 1-sigma fit error)
    SNR: 11.5330130469749
 
  Angular difference between Flight and Ground position is 1.724989 arcmin
 
  Partial Coding Fraction: 0.859375    [ including projection effects ]

  Duration
     T90: 139.092000007629 +/- 15.210022212775
        Measured from: -35.6519999802113
                   to: 103.440000027418     [s; relative to TRIGTIME]
     T50: 92.0320000052452 +/- 2.75519872077308
        Measured from: 3.4040000140667
                   to: 95.4360000193119     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 94.9160000085831     
                   to: 95.9160000085831     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -50.1759999990463     
                   to: 108.844000011683     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.988078   1.293676   0.768126   0.107993
           0.063730   0.066188   0.058043   0.051335 [error]
 Peak      0.028959   0.039118   0.034130   0.014740
           0.004954   0.005353   0.004734   0.004136 [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 3.05e-07 4.95e-07 6.08e-07 1.47e-06 1.83e-06 2.88e-06   erg/cm2
              Error 3.03e-08 3.09e-08 5.63e-08 2.83e-07 1.32e-07 3.33e-07   erg/cm2
Peak flux Power-law 2.40e-01 2.76e-01 2.28e-01 3.17e-01 8.59e-01 1.06e+00   ph/cm2/s
              Error 6.07e-02 4.20e-02 3.83e-02 1.14e-01 1.18e-01 1.54e-01   ph/cm2/s
 
Fluence   Cutoff-PL 2.77e-07 5.32e-07 6.14e-07 5.33e-07 1.71e-06 1.96e-06   erg/cm2
              Error 3.57e-08 4.00e-08 6.21e-08 3.66e-07 1.50e-07 3.95e-07   erg/cm2
Peak flux Cutoff-PL 2.40e-01 2.76e-01 2.28e-01 3.13e-01 8.59e-01 1.06e+00   ph/cm2/s
              Error 6.17e-02 4.23e-02 3.86e-02 1.43e-01 1.18e-01 1.78e-01   ph/cm2/s
 
Fluence        Band 2.77e-07 5.26e-07 6.17e-07 6.23e-07 1.74e-06 2.05e-06   erg/cm2
              Error 3.51e-08 -------- -------- -------- -------- --------   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    1.705    0.113    -      -           1.24e-03 8.46e-05   45.940 57
CPL   1.009    0.501      66.1   27.2      2.91e-03 1.92e-03   39.260 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.274    0.247    -      -           7.23e-03 9.84e-04   52.510 57
CPL   1.250    0.000    9979.6    0.0      7.43e-03 0.00e+00   52.600 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: 104.640000 sec.
T50 in the 50-300 keV band: 51.584000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  159.020  -50.176  108.844
T90   139.092  -35.652  103.440
T50    92.032    3.404   95.436
Peak    1.000   94.916   95.916

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
   54.0158    17.3351   0.0167    20.4848  -130.8717         1.5232498     11.533 TRIG_00177408                 
 
Foreground time interval of the image:
-50.176  52.501 (delta_t = 102.677 [sec])
Background time interval of the image:
-176.699 -50.176 (delta_t = 126.523 [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 8.192000

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 8.192000

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 8.192000

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  -50.176 sec. to  108.844 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.70464     ( -0.111943   0.113954 )
Norm@50keV  : 1.24133E-03    ( -8.4912e-05   8.4195e-05 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          45.94 using 59 PHA bins.
# Reduced chi-squared =         0.8060 for     57 degrees of freedom 
# Null hypothesis probability =   8.526045e-01
 
Photon flux (15-150 keV)    in 159 sec: 0.165130 ( -0.0103575  0.0103661 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.82677e-06 ( -1.31134e-07  1.32461e-07 ) ergs/cm2

Cutoff power-law model

Time interval is from  -50.176 sec. to  108.844 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.00896     ( -0.529967   0.471319 )
Epeak [keV] : 66.1118      ( -12.1652 42.3137 )
Norm@50keV  : 2.90652E-03    ( -0.00125047   0.00259822 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.26 using 59 PHA bins.
# Reduced chi-squared =         0.7012 for     56 degrees of freedom 
# Null hypothesis probability =   9.562720e-01
 
Photon flux (15-150 keV)    in 159 sec: 0.159325 ( -0.011023  0.011025 ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.71184e-06 ( -1.48415e-07  1.51463e-07 ) ergs/cm2

Band function

Time interval is from  -50.176 sec. to  108.844 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.00892   ( -0.373506   0.651432 )
beta        : -10.0000    ( 10   7.10543e-15 )
Epeak [keV] : 66.0990      ( -11.444 42.3538 )
Norm@50keV   : 2.90647E-03    ( -0.0012504   0.00259959 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          39.26 using 59 PHA bins.
# Reduced chi-squared =         0.7139 for     55 degrees of freedom 
# Null hypothesis probability =   9.460889e-01
 
Photon flux (15-150 keV)    in 159 sec: 0.160099 (    ) ph/cm2/s
Energy fluence (15-150 keV)             : 1.73981e-06 ( 0  0 ) ergs/cm2

Single BB

 
Spectral model blackbody:
------------------------------------------------------------
Parameters  : value    Lower 90%  Upper 90%
kT [keV]    : 12.6759  (-0.93407  1.01989)
R^2/D10^2   : 3.26787E-02  (-0.0080372   0.0105577)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          79.07 using 59 PHA bins.
# Reduced chi-squared =          1.387 for     57 degrees of freedom 
# Null hypothesis probability =   2.815233e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.771e-07   2.034e-08
25- 50  5.932e-07   3.999e-08
50-150  5.936e-07   8.284e-08
15-150  1.364e-06   9.596e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 126.942       (-31.0883      43.556)
Norm        : 0.691152       (-0.0520864     0.0645845)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.26 using 59 PHA bins.
# Reduced chi-squared =         0.7063 for     57 degrees of freedom 
# Null hypothesis probability =   9.545336e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.855e-07   2.647e-08
25- 50  5.157e-07   4.857e-08
50-150  9.455e-07   3.156e-07
15-150  1.747e-06   3.655e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 6.09925        (-1.74839      1.87015)
R1^2/D10^2  : 0.262437        (-0.148467      0.650503)
kT2 [keV]   : 19.4612        (-3.44274      6.00442)
R2^2/D10^2  : 5.33750E-03    (-0.00354887   0.00472606)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          40.57 using 59 PHA bins.
# Reduced chi-squared =         0.7376 for     55 degrees of freedom 
# Null hypothesis probability =   9.270412e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  2.737e-07   8.600e-08
25- 50  5.244e-07   1.375e-07
50-150  8.776e-07   2.735e-07
15-150  1.676e-06   4.869e-07

Peak spectrum fit

Power-law model

Time interval is from   94.916 sec. to   95.916 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.27366     ( -0.247734   0.245272 )
Norm@50keV  : 7.23397E-03    ( -0.000985303   0.000982545 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.51 using 59 PHA bins.
# Reduced chi-squared =         0.9212 for     57 degrees of freedom 
# Null hypothesis probability =   6.440698e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.858982 ( -0.117589  0.11783 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.19554e-08 ( -1.11789e-08  1.13348e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   94.916 sec. to   95.916 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.25021     (     )
Epeak [keV] : 9979.58      (   )
Norm@50keV  : 7.43085E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.60 using 59 PHA bins.
# Reduced chi-squared =         0.9393 for     56 degrees of freedom 
# Null hypothesis probability =   6.043070e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.859024 ( -0.117879  0.117432 ) ph/cm2/s
Energy fluence (15-150 keV)             : 7.18269e-08 ( -1.09765e-08  1.12962e-08 ) ergs/cm2

Band function

Time interval is from   94.916 sec. to   95.916 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.01752   ( 1.01781   1.01781 )
beta        : -1.27286    ( 1.27365   0.248045 )
Epeak [keV] : 45.4222      ( -45.4201 -45.4201 )
Norm@50keV   : 1.35264E-02    ( -0.00724523   14.2951 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          52.51 using 59 PHA bins.
# Reduced chi-squared =         0.9547 for     55 degrees of freedom 
# Null hypothesis probability =   5.703788e-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]    : 17.6429  (-3.63711  4.95408)
R^2/D10^2   : 5.66032E-02  (-0.05615   0.066072)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          71.54 using 59 PHA bins.
# Reduced chi-squared =          1.255 for     57 degrees of freedom 
# Null hypothesis probability =   9.304551e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.550e-09   1.082e-09
25- 50  1.617e-08   4.010e-09
50-150  3.634e-08   9.855e-09
15-150  5.606e-08   1.070e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 200.000       (      )
Norm        : 3.51489       (-0.480823     0.480797)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.66 using 59 PHA bins.
# Reduced chi-squared =         0.9940 for     57 degrees of freedom 
# Null hypothesis probability =   4.877956e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  8.753e-09   4.965e-09
25- 50  1.684e-08   9.395e-09
50-150  3.693e-08   2.053e-08
15-150  6.252e-08   3.507e-08

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.26623        (-2.55106      3.15875)
R1^2/D10^2  : 0.770808        (-0.535475      2.93774)
kT2 [keV]   : 36.7894        (-12.6963      51.7143)
R2^2/D10^2  : 4.69605E-03    (-0.00412895   0.0131412)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          51.75 using 59 PHA bins.
# Reduced chi-squared =         0.9409 for     55 degrees of freedom 
# Null hypothesis probability =   5.995095e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  7.655e-09   4.309e-09
25- 50  1.576e-08   8.218e-09
50-150  5.153e-08   2.837e-08
15-150  7.495e-08   3.859e-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: 1.79684     ( -0.17958   0.187196 )
Norm@50keV  : 9.33840E-04    ( -0.000110389   0.000108286 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          30.72 using 59 PHA bins.
# Reduced chi-squared =         0.5389 for     57 degrees of freedom 
# Null hypothesis probability =   9.982901e-01
 
Photon flux (15-150 keV)    in 102.7 sec: 0.128524 ( -0.0128168  0.0128204 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.8301e-07 ( -1.05424e-07  1.07515e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.07308     ( -0.935987   0.763432 )
Epeak [keV] : 56.2788      ( -13.7784 -56.2788 )
Norm@50keV  : 2.35798E-03    ( -0.00144688   0.00545513 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          28.13 using 59 PHA bins.
# Reduced chi-squared =         0.5024 for     56 degrees of freedom 
# Null hypothesis probability =   9.993183e-01
 
Photon flux (15-150 keV)    in 102.7 sec: 0.124592 ( -0.013449  0.013447 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.2197e-07 ( -1.18017e-07  1.24207e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -1.09089   ( -0.727893   0.708048 )
beta        : -9.37089    ( 9.3716   19.3716 )
Epeak [keV] : 56.7527      ( -14.2378 113.12 )
Norm@50keV   : 2.30107E-03    ( -0.00124607   0 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          28.14 using 59 PHA bins.
# Reduced chi-squared =         0.5116 for     55 degrees of freedom 
# Null hypothesis probability =   9.990188e-01
 
Photon flux (15-150 keV)    in 102.7 sec: 0.124657 (    ) 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)  = 4.95e-07
S(50-100 keV) = 6.08e-07

T90 vs. Hardness ratio plot

T90                                   = 139.092000007629 sec.
Hardness ratio (energy fluence ratio) = 1.22828

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.30929
Count Ratio (50-100 keV) / (15-25 keV) = 0.777394

Mask shadow pattern

IMX = -2.444601163760651E-01, IMY = 2.824946439181216E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 8.192000

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:
-176.699400 -50.176000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6499  22.0144    0.2  11.8  108.7   5.5183  46.7    0.9	Crab                          
 13.5011  61.1023    3.8  50.6  -44.5   2.2305   3.1 ------	UNKNOWN                       
 24.7941  32.8309    3.6  41.1  -83.6   1.9265   3.2 ------	UNKNOWN

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

Time interval of the image:
-50.176000 52.500610
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.4931  22.1017    6.0  11.6  108.7   0.2551   1.9    9.4	Crab                          
 76.5100   6.5109    3.1  22.2  158.0   0.4704   3.7 ------	UNKNOWN                       
 54.0158  17.3352    1.0  20.5 -130.9   1.5223  11.5 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
101.300620 302.460700
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6277  22.0168    0.4  28.2   90.3   8.2183  31.2    0.3	Crab                          
 61.2968  55.0522    2.4  38.1   21.4   1.1656   4.8 ------	UNKNOWN                       
 73.1591 -13.2586    2.4  36.0  161.8   1.2051   4.8 ------	UNKNOWN                       
 47.4023  47.5616    2.8  30.7    5.9   0.7566   4.2 ------	UNKNOWN                       
 54.8941  -8.5927    2.5  26.0 -167.3   0.7207   4.6 ------	UNKNOWN                       
 48.1169  -2.7800    2.7  21.0 -148.6   0.6786   4.3 ------	UNKNOWN

Plot creation:
Sun May 31 14:30:20 EDT 2015