batgrbproduct analysis for trigger=506074

batgrbproduct Analysis for Trigger=506074

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 19:15:51 EST 2014
             Host Name: batevent1
   Current Working Dir: /local/data/batevent/batevent_reproc/trigger506074
======================================================================

  Trigger: 00506074      Segment: 000

  BAT Trigger Time: 340996392   [s; MET]
      Trigger Stop: 340996456   [s; MET]
               UTC: 2011-10-22T17:13:04.505940    [includes UTCF correction] 
       Where From?: TDRSS position message

  BAT 
    RA: 108.951202257144   Dec: 49.6663689387038  [deg; J2000]

     Catalogged Source?: NO
     Point Source?:      YES
     GRB Indicated?:     YES    [ by BAT flight software ]
     Image S/N Ratio:    9.16
     Image Trigger?:     YES
     Rate S/N Ratio:     0  [ if not an image trigger ]
     Image S/N Ratio:    9.16

  Flight Position:   [ source = BAT ]
    RA: 108.951202257144   Dec: 49.6663689387038  [deg; J2000]

  Ground Position:   [ source = BAT pre-slew burst ]
    RA: 108.923306838468   Dec: 49.6597161970468  [deg; J2000]  
        { 07h 15m 41.6s , +49d 39' 35.0" }
         +/- 2.1076893429423 [arcmin] (estimated 90% radius based on SNR)
         +/- 1.1283587391969 [arcmin] (formal 1-sigma fit error)
    SNR: 10.4842537444895
 
  Angular difference between Flight and Ground position is 1.154567 arcmin
 
  Partial Coding Fraction: 0.8203125    [ including projection effects ]

  Duration
     T90: 83.0279999375343 +/- 12.9672758719238
        Measured from: -29.444000005722
                   to: 53.5839999318123     [s; relative to TRIGTIME]
     T50: 43.9519999623299 +/- 16.1059065750694
        Measured from: -20.0120000243187
                   to: 23.9399999380112     [s; relative to TRIGTIME]



  Fluence
     Peak Flux  (peak 1 second)
        Measured from: 49.5360000133514     
                   to: 50.5360000133514     [s; relative to TRIGTIME]
     Total Fluence        
        Measured from: -47.8320000171661     
                   to: 60.1800000071526     [s; relative to TRIGTIME]
     
             Band 1     Band 2     Band 3     Band 4
              15-25      25-50     50-100    100-350     keV
 Total     0.468762   0.604276   0.346119   0.065331
           0.059516   0.061323   0.054053   0.046981 [error]
 Peak      0.016952   0.012083   0.013052   0.008370
           0.005859   0.005836   0.005457   0.004583 [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 1.42e-07 2.38e-07 3.03e-07 7.76e-07 8.98e-07 1.46e-06   erg/cm2
              Error 2.63e-08 2.83e-08 5.22e-08 2.77e-07 1.24e-07 3.24e-07   erg/cm2
Peak flux Power-law 9.18e-02 1.17e-01 1.10e-01 1.80e-01 3.80e-01 4.99e-01   ph/cm2/s
              Error 9.41e-02 6.29e-02 4.65e-02 2.49e-01 2.62e-01 2.17e-01   ph/cm2/s
 
Fluence   Cutoff-PL 1.40e-07 2.42e-07 3.04e-07 6.05e-07 8.85e-07 1.27e-06   erg/cm2
              Error 2.78e-08 3.51e-08 5.41e-08 5.36e-07 1.41e-07 4.91e-07   erg/cm2
Peak flux Cutoff-PL 9.83e-02 1.21e-01 1.08e-01 1.64e-01 3.84e-01 4.91e-01   ph/cm2/s
              Error 8.57e-02 6.23e-02 4.65e-02 2.71e-01 1.05e-01 2.16e-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    1.649    0.209    -      -           9.04e-04 1.16e-04   61.570 57
CPL   1.521    0.605     165.2    0.0      1.07e-03 1.27e-03   61.490 56
 
 
=== 1-s peak spectral analysis ===
 
Model Ph_index Ph_90err Epeak  Epeak_90err Norm     Nomr_90err chi2   dof
PL    1.102    1.003    -      -           3.28e-03 1.30e-03   58.110 57
CPL   1.110    1.016    10000.0    0.0      3.29e-03 0.00e+00   58.120 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: 0.000000 sec.
T50 in the 50-300 keV band: 0.000000 sec.

 
=== Table of the duration information ==
 
        Value   tstart    tstop
T100  108.012  -47.832   60.180
T90    83.028  -29.444   53.584
T50    43.952  -20.012   23.940
Peak    1.000   49.536   50.536

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
  108.9233    49.6597   0.0183    30.6897   -13.9694         1.5200058     10.484 TRIG_00506074                 
 
Foreground time interval of the image:
-47.832 -14.249 (delta_t =  33.583 [sec])
-13.000  60.180 (delta_t =  73.180 [sec])
Background time interval of the image:
-205.699 -47.832 (delta_t = 157.867 [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 64.000000

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 64.000000

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 64.000000

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)

The mask-weighted light curves based on cleaned DPHs

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

Multiple GTIs in the spectrum
tstart tstop
-47.832000 -14.248800
-13.000000 60.180000
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.64852     ( -0.206892   0.210702 )
Norm@50keV  : 9.03853E-04    ( -0.000117039   0.000115271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.57 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     57 degrees of freedom 
# Null hypothesis probability =   3.157672e-01
 
Photon flux (15-150 keV)    in 106.8 sec: 0.117963 ( -0.014024  0.0140332 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.97922e-07 ( -1.22838e-07  1.24912e-07 ) ergs/cm2

Cutoff power-law model

Multiple GTIs in the spectrum
tstart tstop
-47.832000 -14.248800
-13.000000 60.180000
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52085     ( -0.878705   0.332284 )
Epeak [keV] : 165.155      ( -168.255 -168.255 )
Norm@50keV  : 1.06672E-03    ( -0.000273539   0.0022669 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     56 degrees of freedom 
# Null hypothesis probability =   2.858995e-01
 
Photon flux (15-150 keV)    in 106.8 sec: 0.117413 ( -0.014376  0.014339 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.85387e-07 ( -1.47646e-07  1.35336e-07 ) ergs/cm2

Band function

Multiple GTIs in the spectrum
tstart tstop
-47.832000 -14.248800
-13.000000 60.180000
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99426   ( -5.82199   -4.99426 )
beta        : -1.86625    ( -0.389342   0.267287 )
Epeak [keV] : 25.8259      ( -6.29884 4.98421 )
Norm@50keV   : 93.4032    ( -10.8632   452.36 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.84 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     55 degrees of freedom 
# Null hypothesis probability =   4.062571e-01
 
Photon flux (15-150 keV)    in 106.8 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]    : 10.8035  (-1.51084  1.90093)
R^2/D10^2   : 4.19643E-02  (-0.0189543   0.0317809)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          77.71 using 59 PHA bins.
# Reduced chi-squared =          1.363 for     57 degrees of freedom 
# Null hypothesis probability =   3.548524e-02
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.089e-07   2.477e-08
25- 50  3.008e-07   5.057e-08
50-150  1.955e-07   6.050e-08
15-150  6.052e-07   9.697e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 146.931       (-62.9285      -145.612)
Norm        : 0.488609       (-0.0640034     0.0863181)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.66 using 59 PHA bins.
# Reduced chi-squared =          1.082 for     57 degrees of freedom 
# Null hypothesis probability =   3.131842e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.343e-07   4.690e-08
25- 50  2.481e-07   1.226e-07
50-150  4.855e-07   2.861e-07
15-150  8.679e-07   4.564e-07

Double BB

 
 
Spectral model: bbodyrad<1> + bbodyrad<2>
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT1 [keV]   : 7.95936        (-1.41524      1.56354)
R1^2/D10^2  : 0.108845        (-0.0520376      0.107933)
kT2 [keV]   : 48.9997        (-21.6982      -48.7069)
R2^2/D10^2  : 1.88176E-04    (-0.000181847   0.000539481)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          53.92 using 59 PHA bins.
# Reduced chi-squared =         0.9803 for     55 degrees of freedom 
# Null hypothesis probability =   5.160330e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  1.380e-07   4.911e-08
25- 50  2.686e-07   8.667e-08
50-150  5.205e-07   2.692e-07
15-150  9.272e-07   3.720e-07

Peak spectrum fit

Power-law model

Time interval is from   49.536 sec. to   50.536 sec.
 
Spectral model in power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.10165     ( -1.13578   0.870091 )
Norm@50keV  : 3.27518E-03    ( -0.00143824   0.00115349 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.11 using 59 PHA bins.
# Reduced chi-squared =          1.019 for     57 degrees of freedom 
# Null hypothesis probability =   4.343542e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.379756 ( -0.379756  0.144152 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.42514e-08 ( -1.37301e-08  1.37391e-08 ) ergs/cm2

Cutoff power-law model

Time interval is from   49.536 sec. to   50.536 sec.
Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.11015     ( -1.22092   0.811538 )
Epeak [keV] : 1.00000E+04      (   )
Norm@50keV  : 3.29223E-03    (     )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.12 using 59 PHA bins.
# Reduced chi-squared =          1.038 for     56 degrees of freedom 
# Null hypothesis probability =   3.970534e-01
 
Photon flux (15-150 keV)    in 1 sec: 0.383801 ( -0.07042  0.140292 ) ph/cm2/s
Energy fluence (15-150 keV)             : 3.31055e-08 ( -1.27687e-08  1.50353e-08 ) ergs/cm2

Band function

Time interval is from   49.536 sec. to   50.536 sec.
 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : -0.955300   ( 0.954456   0.954456 )
beta        : -1.10311    ( 1.09904   1.13686 )
Epeak [keV] : 31.7518      ( -30.896 -30.896 )
Norm@50keV   : 5.42261E-03    ( -0.00326105   0.596562 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          58.11 using 59 PHA bins.
# Reduced chi-squared =          1.056 for     55 degrees of freedom 
# Null hypothesis probability =   3.616460e-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]    : 56.4160  (-40.8068  -57.2595)
R^2/D10^2   : 9.90390E-04  (-0.000943521   0.027909)
(R is the radius in km and D10 is the distance to the source in units of 10 kpc)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          62.60 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     57 degrees of freedom 
# Null hypothesis probability =   2.843741e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.127e-10   2.034e-10
25- 50  2.319e-09   1.426e-09
50-150  3.166e-08   1.854e-08
15-150  3.429e-08   1.967e-08

Thermal bremsstrahlung (OTTB)

 
 
Spectral model: thermal bremsstrahlung
------------------------------------------------------------
Parameters  : value         Lower 90%    Upper 90%
kT [keV]    : 199.362       (-199.363      -199.363)
Norm        : 1.57729       (-0.571065     0.57105)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          59.79 using 59 PHA bins.
# Reduced chi-squared =          1.049 for     57 degrees of freedom 
# Null hypothesis probability =   3.747357e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  3.928e-09   2.523e-09
25- 50  7.555e-09   4.933e-09
50-150  1.657e-08   1.021e-08
15-150  2.805e-08   1.761e-08

Double BB

R1^2/D10^2  : 1.15380        (      )
kT2 [keV]   : 200.000        (      )
R2^2/D10^2  : 1.09181E-04    (-4.67979e-05   0.000420651)
------------------------------------------------------------
#Fit statistic : Chi-Squared =          54.26 using 59 PHA bins.
#Fit statistic : Chi-Squared =          54.11 using 59 PHA bins.
#Fit statistic : Chi-Squared =          54.02 using 59 PHA bins.
# Reduced chi-squared =         0.9866 for     55 degrees of freedom 
# Reduced chi-squared =         0.9838 for     55 degrees of freedom 
# Reduced chi-squared =         0.9822 for     55 degrees of freedom 
# Null hypothesis probability =   5.027914e-01
# Null hypothesis probability =   5.086124e-01
# Null hypothesis probability =   5.119878e-01
 
Energy  Fluence     90% Error
[keV]   [erg/cm2]   [erg/cm2]
15- 25  4.862e-09   3.204e-09
25- 50  5.029e-09   2.838e-09
50-150  2.995e-08   2.655e-08
15-150  3.984e-08   2.861e-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: 1.64852     ( -0.206892   0.210702 )
Norm@50keV  : 9.03853E-04    ( -0.000117039   0.000115271 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.57 using 59 PHA bins.
# Reduced chi-squared =          1.080 for     57 degrees of freedom 
# Null hypothesis probability =   3.157672e-01
 
Photon flux (15-150 keV)    in 106.8 sec: 0.117963 ( -0.014024  0.0140332 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.97922e-07 ( -1.22838e-07  1.24912e-07 ) ergs/cm2

Cutoff power-law model

Spectral model in the cutoff power-law:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
Photon index: 1.52085     ( -0.878705   0.332284 )
Epeak [keV] : 165.155      ( -168.255 -168.255 )
Norm@50keV  : 1.06672E-03    ( -0.000273539   0.0022669 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          61.49 using 59 PHA bins.
# Reduced chi-squared =          1.098 for     56 degrees of freedom 
# Null hypothesis probability =   2.858995e-01
 
Photon flux (15-150 keV)    in 106.8 sec: 0.117413 ( -0.014376  0.014339 ) ph/cm2/s
Energy fluence (15-150 keV)             : 8.85387e-07 ( -1.47646e-07  1.35336e-07 ) ergs/cm2

Band function

 
Spectral model in the Band function:
------------------------------------------------------------
Parameters  : value       lower 90%   higher 90%
alpha       : 4.99426   ( -14.9553   -4.99426 )
beta        : -1.86625    ( -0.389342   0.267287 )
Epeak [keV] : 25.8259      ( -6.29884 4.98421 )
Norm@50keV   : 93.4032    ( -10.8632   452.36 )
------------------------------------------------------------
#Fit statistic : Chi-Squared =          56.84 using 59 PHA bins.
# Reduced chi-squared =          1.033 for     55 degrees of freedom 
# Null hypothesis probability =   4.062571e-01
 
Photon flux (15-150 keV)    in 106.8 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)  = 2.38e-07
S(50-100 keV) = 3.03e-07

T90 vs. Hardness ratio plot

T90                                   = 83.0279999375343 sec.
Hardness ratio (energy fluence ratio) = 1.27311

Color vs. Color plot

Count Ratio  (25-50 keV) / (15-25 keV) = 1.28909
Count Ratio (50-100 keV) / (15-25 keV) = 0.738368

Mask shadow pattern

IMX = 5.759592231643343E-01, IMY = 1.432760321747943E-01

TIME vs. PHA plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

TIME vs. DetID plot around the trigger time

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

100 us light curve (15-350 keV)

Blue+Cyan dotted lines: Time interval of the scaled map
From 0.000000 to 64.000000

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:
-205.699410 -47.832000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6292  22.0030    1.7  51.3   29.2   5.1426   6.9    0.7	Crab                          
308.0124  40.9824  325.4  58.0 -178.6  -0.0358  -0.0    4.8	Cyg X-3                       
326.3786  38.3944    3.8  55.3  164.5  -2.4865  -3.1   10.7	Cyg X-2                       
294.0733  43.4496    3.0  59.0 -166.2   3.7593   3.9 ------	UNKNOWN                       
140.8815  35.0265    3.3  53.9  -36.8   2.6783   3.6 ------	UNKNOWN

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

Time interval of the image:
-47.832000 -14.248800
-13.000000 60.180000
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.8265  22.0091    7.6  51.3   28.9  -1.0525  -1.5   10.8	Crab                          
308.2383  40.9926    3.5  57.9 -178.8  -2.5686  -3.3    6.3	Cyg X-3                       
326.2287  38.3080    6.5  55.4  164.6   1.3567   1.8    2.8	Cyg X-2                       
108.9237  49.6602    1.1  30.7  -14.0   1.5437  10.6 ------	UNKNOWN                       
278.5813  57.1374    2.9  48.6 -149.8   1.2287   3.9 ------	UNKNOWN

Post-slew image of 15-350 keV band

Time interval of the image:
126.300590 963.085500
 
# RAcent  DECcent POSerr Theta    Phi  PeakCts   SNR AngSep     Name
#  [deg]    [deg]    ['] [deg]  [deg]                   [']
 83.6339  22.0123    0.3  34.1   44.0  32.6478  34.6    0.1	Crab                          
 38.7552  83.3155    3.8  38.5  168.8   2.4695   3.0 ------	UNKNOWN                       
252.5502  68.1748    3.2  59.1 -166.1  16.3021   3.6 ------	UNKNOWN                       
121.5539  -7.0415    3.8  57.8  -15.9   7.8226   3.0 ------	UNKNOWN                       
158.5962  55.9342    3.2  30.0 -122.4   2.3579   3.6 ------	UNKNOWN

Plot creation:
Sat May 30 21:18:20 EDT 2015