Orbit Fit and Astrometric record for 15VV1

The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory. Take special note that while the original Bernstein software works with barycentric coordinates, we convert these results into a heliocentric coordinate system.

# Object: 15VV1     
# Created Wed Oct 18 01:38:36 2017
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting   73 observations of   73
# Arc:   5.27y
# First observation: 2011/08/24
#  Last observation: 2016/11/28
# Chi-squared of fit:    72.95 DOF:  140 RMS:  0.18
# Min/Max residuals:    -0.72    0.60
# Exact a, adot, b, bdot, g, gdot:
  4.041383E-05  3.161286E-01 -1.096964E-05 -8.620126E-02  1.259719E-01 -8.017559E-02
# Covariance matrix:
  1.3761E-13 -2.0689E-14 -2.4823E-14  4.2866E-15  9.4950E-15  1.2824E-14
 -2.0689E-14  5.5405E-15  2.6149E-15 -6.4703E-16  5.4872E-15 -2.6414E-15
 -2.4823E-14  2.6149E-15  9.1294E-14 -2.0278E-14  5.0540E-15 -8.4679E-15
  4.2866E-15 -6.4703E-16 -2.0278E-14  4.9990E-15 -2.1374E-15  1.8901E-15
  9.4950E-15  5.4872E-15  5.0540E-15 -2.1374E-15  4.0036E-14 -1.0960E-14
  1.2824E-14 -2.6414E-15 -8.4679E-15  1.8901E-15 -1.0960E-14  7.1992E-15
#      lat0       lon0       xBary       yBary       zBary        JD0
   -8.974018  -22.008108    0.129171   -0.156015   -0.987677  2455797.937516
# Heliocentric elements and errors
Epoch:              2455798.5000  =  2011/08/25
Mean Anomaly:          353.71248 +/-     0.000
Argument of Peri:      245.92846 +/-     0.000
Long of Asc Node:      130.09956 +/-     0.000
Inclination:            17.09955 +/-     0.000
Eccentricity:         0.65578168 +/-    0.0000
Semi-Major Axis:     23.79104614 +/-    0.0000
Time of Perihelion: 2456538.7790 +/-       0.1
Perihelion:           8.18931383 +/-    0.0000
Aphelion:            39.39277846 +/-    0.0001
Period (y)              116.0456 +/-      0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X            8.15221523 +/-    0.0000
Ecliptic Y           -3.43185018 +/-    0.0000
Ecliptic Z           -1.23831812 +/-    0.0000
Ecliptic XDOT         0.00070489 +/-    0.0000
Ecliptic YDOT         0.00712996 +/-    0.0000
Ecliptic ZDOT        -0.00157868 +/-    0.0000
# Distances at JD0 (AU)
Heliocenter to KBO    8.93146978 +/-    0.0000
Geocenter to KBO      7.93839137 +/-    0.0000
# Hcoef: 12.05

The following table shows the complete astrometric record for 15VV1. The first three columns show the date of observation. The next six columns are RA and DEC. The next column (when provided) is the observed magnitude and filter. The next column is the object name (15VV1) followed by the observatory code and reference code for the source of the astrometry.

2011 08  24.43675  22 52 33.310  -16 52 44.59  21.2w 15VV1     F51  C~1vZC      
2011 08  24.45075  22 52 33.092  -16 52 46.69  21.2w 15VV1     F51  C~1vZC      
2011 08  24.46471  22 52 32.869  -16 52 48.78  21.2w 15VV1     F51  C~1vZC      
2011 10  14.31056  22 40 47.673  -18 26 01.79  21.1i 15VV1     F51  C~1vZC      
2011 10  14.34497  22 40 47.338  -18 26 03.45  21.0i 15VV1     F51  C~1vZC      
2011 10  14.35831  22 40 47.218  -18 26 04.20  20.9i 15VV1     F51  C~1vZC      
2012 10  10.35422  00 03 00.129  -15 16 02.46  21.0w 15VV1     F51  C~1vZC      
2012 10  10.36815  00 02 59.921  -15 16 03.80  21.0w 15VV1     F51  C~1vZC      
2012 10  10.38209  00 02 59.708  -15 16 05.07  21.1w 15VV1     F51  C~1vZC      
2012 10  10.39601  00 02 59.491  -15 16 06.39  21.0w 15VV1     F51  C~1vZC      
2013 09  14.49997  01 36 51.385  -08 48 51.41  21.0w 15VV1     F51  C~1vZC      
2013 09  14.51460  01 36 51.217  -08 48 53.82  21.0w 15VV1     F51  C~1vZC      
2013 09  14.52923  01 36 51.045  -08 48 56.18  21.0w 15VV1     F51  C~1vZC      
2013 09  14.54388  01 36 50.875  -08 48 58.61  21.0w 15VV1     F51  C~1vZC      
2013 10  24.39206  01 26 49.355  -10 18 06.69  20.9r 15VV1     F51  C~1vZC      
2013 10  24.40407  01 26 49.164  -10 18 07.70  21.0r 15VV1     F51  C~1vZC      
2013 10  24.41767  01 26 48.932  -10 18 08.93  20.9i 15VV1     F51  C~1vZC      
2013 10  24.43031  01 26 48.720  -10 18 09.89  20.6i 15VV1     F51  C~1vZC      
2013 10  25.30342  01 26 34.612  -10 19 23.01  21.2w 15VV1     F51  C~1vZC      
2013 10  25.31797  01 26 34.352  -10 19 24.07  21.1w 15VV1     F51  C~1vZC      
2013 10  25.33254  01 26 34.113  -10 19 25.52  21.1w 15VV1     F51  C~1vZC      
2013 10  25.34714  01 26 33.868  -10 19 26.62  21.1w 15VV1     F51  C~1vZC      
2014 08  22.57474  02 58 09.267  -01 40 20.97  21.7w 15VV1     F51  C~1vZC      
2014 08  22.58742  02 58 09.334  -01 40 22.12  21.6w 15VV1     F51  C~1vZC      
2014 08  22.60009  02 58 09.380  -01 40 23.41  21.3w 15VV1     F51  C~1vZC      
2014 08  22.61279  02 58 09.463  -01 40 24.74  21.4w 15VV1     F51  C~1vZC      
2014 09  16.49560  02 58 16.989  -02 30 43.47  21.0i 15VV1     F51  C~1vZC      
2014 09  16.50832  02 58 16.913  -02 30 44.81  21.1i 15VV1     F51  C~1vZC      
2014 09  16.52099  02 58 16.838  -02 30 46.83  21.1i 15VV1     F51  C~1vZC      
2014 09  16.53367  02 58 16.767  -02 30 48.50  21.1i 15VV1     F51  C~1vZC      
2014 10  30.47664  02 49 11.276  -04 00 00.64  21.2w 15VV1     F51  C~1vZC      
2014 10  30.47862  02 49 11.235  -04 00 00.67  21.2w 15VV1     F51  C~1vZC      
2014 10  30.49152  02 49 11.016  -04 00 01.77  21.2w 15VV1     F51  C~1vZC      
2014 10  30.49350  02 49 11.013  -04 00 02.10  21.1w 15VV1     F51  C~1vZC      
2014 10  30.50640  02 49 10.741  -04 00 03.19  21.2w 15VV1     F51  C~1vZC      
2014 10  30.50839  02 49 10.707  -04 00 03.33  21.3w 15VV1     F51  C~1vZC      
2014 10  30.52133  02 49 10.493  -04 00 04.32  21.2w 15VV1     F51  C~1vZC      
2014 10  30.52332  02 49 10.468  -04 00 04.43  21.2w 15VV1     F51  C~1vZC      
2014 11  25.30771  02 41 57.972  -04 21 03.46  21.4w 15VV1     F51  C~1vZC      
2014 11  25.31256  02 41 57.896  -04 21 03.58  21.3w 15VV1     F51  C~1vZC      
2014 11  25.32126  02 41 57.762  -04 21 03.71  21.3w 15VV1     F51  C~1vZC      
2014 11  25.32610  02 41 57.674  -04 21 03.60  21.3w 15VV1     F51  C~1vZC      
2014 11  25.33479  02 41 57.554  -04 21 03.77  21.2w 15VV1     F51  C~1vZC      
2014 11  25.33963  02 41 57.468  -04 21 03.86  21.2w 15VV1     F51  C~1vZC      
2014 11  25.34834  02 41 57.349  -04 21 04.03  21.2w 15VV1     F51  C~1vZC      
2014 11  25.35318  02 41 57.257  -04 21 03.89  21.1w 15VV1     F51  C~1vZC      
2014 11  27.30230  02 41 28.027  -04 21 09.76  21.0r 15VV1     F51  C~1vZC      
2014 11  27.32796  02 41 27.639  -04 21 09.71  21.1r 15VV1     F51  C~1vZC      
2014 11  27.34079  02 41 27.442  -04 21 09.73  20.9r 15VV1     F51  C~1vZC      
2014 12  07.26615  02 39 13.645  -04 18 12.42  20.9i 15VV1     F51  C~1vZC      
2014 12  07.27928  02 39 13.468  -04 18 12.05  20.8i 15VV1     F51  C~1vZC      
2014 12  07.29246  02 39 13.304  -04 18 11.46  20.7i 15VV1     F51  C~1vZC      
2014 12  07.30564  02 39 13.132  -04 18 10.98  20.6i 15VV1     F51  C~1vZC      
2015 11  02.54673  04 02 36.954  +02 01 05.07  21.1i 15VV1     F51  C~1bSv      
2015 11  02.55864  04 02 36.757  +02 01 04.20  21.1i 15VV1     F51  C~1bSv      
2015 11  02.57055  04 02 36.577  +02 01 03.25  21.0i 15VV1     F51  C~1bSv      
2015 11  02.58243  04 02 36.378  +02 01 02.33  21.0i 15VV1     F51  C~1bSv      
2015 11  03.42545  04 02 23.321  +02 00 00.42  21.1i 15VV1     F51  C~1bSv      
2015 11  03.44905  04 02 22.958  +01 59 58.68  21.0i 15VV1     F51  C~1bSv      
2015 11  03.46091  04 02 22.754  +01 59 57.91  21.1i 15VV1     F51  C~1bSv      
2015 11  05.25542  04 01 54.37   +01 57 50.8   21.3V 15VV1     807  C~1bSv      
2015 11  05.26005  04 01 54.28   +01 57 50.1   21.4V 15VV1     807  C~1bSv      
2015 11  05.26433  04 01 54.20   +01 57 49.8   21.1V 15VV1     807  C~1bSv      
2015 11  17.35418  03 58 30.404  +01 46 06.69  21.4w 15VV1     F51  C~1u73      
2015 11  17.36517  03 58 30.193  +01 46 06.09  21.3w 15VV1     F51  C~1u73      
2015 11  17.38728  03 58 29.798  +01 46 05.27  21.2w 15VV1     F51  C~1u73      
2015 12  13.28698  03 51 09.012  +01 40 35.41  21.4w 15VV1     F51  C~1u73      
2015 12  13.29810  03 51 08.823  +01 40 35.56  21.5w 15VV1     F51  C~1u73      
2015 12  13.34466  03 51 08.084  +01 40 36.70  21.5w 15VV1     F51  C~1u73      
2015 12  13.35596  03 51 07.907  +01 40 37.01  21.5w 15VV1     F51  C~1u73      
2016 11  28.53022  04 58 02.576  +06 33 30.36  21.6w 15VV1     F51  C~22pT      
2016 11  28.54287  04 58 02.355  +06 33 30.37  21.4w 15VV1     F51  C~22pT      
2016 11  28.56836  04 58 01.903  +06 33 29.87  21.6w 15VV1     F51  C~22pT      

The following table shows the residuals to the orbit fit. The first coumn is the point number. The second column is the time, in years, measured from the first observation. The third and fifth columns are the regularized positions used in the orbit fit. The fourth and sixth columns are the residuals, in arc seconds, for RA and Dec respectively.

  1   0.0000      0.00    -0.72       0.00    -0.68
  2   0.0000      0.00     0.05       0.00     0.13
  3   0.0001      0.00    -0.01       0.00     0.17
  4   0.1393      0.00     0.56       0.00    -0.07
  5   0.1394      0.00     0.14       0.00    -0.11
  6   0.1394      0.00     0.12       0.00    -0.24
  7   1.1305      0.00     0.22       0.00     0.10
  8   1.1305      0.00     0.28       0.00     0.07
  9   1.1306      0.00     0.27       0.00     0.11
 10   1.1306      0.00     0.20       0.00     0.09
 11   2.0590      0.00     0.10       0.00     0.14
 12   2.0591      0.00     0.13       0.00     0.12
 13   2.0591      0.00     0.11       0.00     0.14
 14   2.0592      0.00     0.13       0.00     0.09
 15   2.1683      0.00     0.06       0.00     0.08
 16   2.1683      0.00     0.22       0.00     0.09
 17   2.1683      0.00     0.16       0.00     0.02
 18   2.1684      0.00     0.15       0.00     0.13
 19   2.1708      0.00     0.35       0.00     0.02
 20   2.1708      0.00     0.07       0.00     0.17
 21   2.1708      0.00     0.12       0.00    -0.08
 22   2.1709      0.00     0.09       0.00     0.03
 23   2.9956      0.00     0.11       0.00    -0.09
 24   2.9956      0.00     0.08       0.00     0.07
 25   2.9957      0.00    -0.27       0.00     0.10
 26   2.9957      0.00    -0.05       0.00     0.09
 27   3.0638      0.00     0.25       0.00     0.15
 28   3.0639      0.00     0.16       0.00     0.51
 29   3.0639      0.00     0.09       0.00     0.18
 30   3.0639      0.00     0.08       0.00     0.21
 31   3.1842      0.00     0.10       0.00    -0.01
 32   3.1842      0.00     0.01       0.00     0.13
 33   3.1843      0.00     0.12       0.00     0.15
 34   3.1843      0.00     0.60       0.00    -0.00
 35   3.1843      0.00    -0.09       0.00     0.03
 36   3.1843      0.00    -0.07       0.00     0.06
 37   3.1844      0.00     0.12       0.00     0.19
 38   3.1844      0.00     0.27       0.00     0.25
 39   3.2550      0.00     0.19       0.00     0.17
 40   3.2550      0.00     0.19       0.00     0.08
 41   3.2550      0.00     0.22       0.00     0.01
 42   3.2550      0.00     0.04       0.00     0.15
 43   3.2550      0.00     0.28       0.00     0.04
 44   3.2550      0.00     0.13       0.00    -0.02
 45   3.2551      0.00     0.39       0.00    -0.13
 46   3.2551      0.00     0.15       0.00     0.04
 47   3.2604      0.00     0.19       0.00     0.13
 48   3.2605      0.00     0.23       0.00     0.18
 49   3.2605      0.00     0.20       0.00     0.15
 50   3.2877      0.00     0.22       0.00    -0.17
 51   3.2877      0.00     0.02       0.00    -0.26
 52   3.2878      0.00     0.02       0.00    -0.13
 53   3.2878      0.00    -0.09       0.00    -0.12
 54   4.1920      0.00     0.34       0.00     0.01
 55   4.1920      0.00     0.22       0.00     0.02
 56   4.1920      0.00     0.35       0.00    -0.04
 57   4.1920      0.00     0.19       0.00    -0.07
 58   4.1944      0.00     0.09       0.00     0.12
 59   4.1944      0.00     0.33       0.00     0.10
 60   4.1945      0.00     0.12       0.00     0.20
 61   4.1994      0.00     0.54       0.00     0.30
 62   4.1994      0.00     0.33       0.00    -0.07
 63   4.1994      0.00     0.18       0.00    -0.08
 64   4.2325      0.00     0.29       0.00     0.04
 65   4.2325      0.00     0.06       0.00    -0.06
 66   4.2326      0.00     0.06       0.00     0.12
 67   4.3035      0.00     0.37       0.00    -0.00
 68   4.3035      0.00     0.17       0.00    -0.10
 69   4.3036      0.00     0.13       0.00     0.02
 70   4.3037      0.00     0.16       0.00     0.08
 71   5.2651      0.00     0.21       0.00    -0.30
 72   5.2652      0.00     0.19       0.00    -0.09
 73   5.2652      0.00     0.06       0.00    -0.18

The following table comes from a 10My integration of the orbit of the object. Three columns are shown. The first column is the result of integrating the nominal orbit. The other two columns are based on clones of the nominal orbit that are +/- 3 sigma from the nominal orbit. If all three types agree then the classificiation is deemed secure. The basis for these calculations is described in more detail in AJ, 129, 1117 (2005). Any use made of these calculations should refer to and credit this publication and the Deep Ecliptic Survey Team.

15VV1    quality flag:3

Type:       CENTAURR  CENTAURR  CENTAURR

axisobj        23.429    23.429    23.430
ecceobj         0.652     0.652     0.652
incobj         17.107    17.107    17.107
qmin            8.150     8.150     8.150
qmax           38.709    38.708    38.709
amean          23.429    23.429    23.430
amin           23.429    23.429    23.430
amax           23.429    23.429    23.430
emean           0.652     0.652     0.652
emin            0.652     0.652     0.652
emax            0.652     0.652     0.652
imean          15.659    15.659    15.659
imin           15.659    15.659    15.659
imax           15.659    15.659    15.659
excite_mean     0.706     0.706     0.706
fracstop        0.000     0.000     0.000
cjmean          2.575     2.575     2.575

libcent 0      -180.0    -180.0    -180.0
libamp  0      -180.0    -180.0    -180.0
libcent 1      -180.0    -180.0    -180.0
libamp  1      -180.0    -180.0    -180.0
libcent 2      -180.0    -180.0    -180.0
libamp  2      -180.0    -180.0    -180.0
libcent 3      -180.0    -180.0    -180.0
libamp  3      -180.0    -180.0    -180.0
libcent 4      -180.0    -180.0    -180.0
libamp  4      -180.0    -180.0    -180.0

kozaimean       246.2     246.2     246.2
kozaiamp          0.0       0.0       0.0