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: 02VF130
# Created Sun Dec 22 02:08:26 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 18.02y
# First observation: 2002/11/07
# Last observation: 2020/11/14
# Chi-squared of fit: 62.68 DOF: 42 RMS: 0.29
# Min/Max residuals: -0.79 0.50
# Exact a, adot, b, bdot, g, gdot:
1.444769E-05 2.271142E-02 -4.900764E-06 -7.892590E-03 2.412153E-02 2.362309E-03
# Covariance matrix:
2.8630E-13 -7.6675E-14 -2.0902E-14 2.1779E-14 4.3024E-13 -1.5334E-13
-7.6675E-14 3.8636E-14 1.1570E-14 -1.2174E-14 -1.1286E-13 8.5920E-14
-2.0902E-14 1.1570E-14 8.8452E-14 -1.0213E-14 -3.1809E-14 2.7070E-14
2.1779E-14 -1.2174E-14 -1.0213E-14 5.7263E-15 3.2789E-14 -2.8515E-14
4.3024E-13 -1.1286E-13 -3.1809E-14 3.2789E-14 1.0304E-12 -2.3023E-13
-1.5334E-13 8.5920E-14 2.7070E-14 -2.8515E-14 -2.3023E-13 2.0131E-13
# lat0 lon0 xBary yBary zBary JD0
4.229831 66.241156 0.366290 0.067682 -0.915381 2452585.859333
# Heliocentric elements and errors
Epoch: 2452586.5000 = 2002/11/08
Mean Anomaly: 42.48851 +/- 0.040
Argument of Peri: 114.75757 +/- 0.049
Long of Asc Node: 257.54856 +/- 0.000
Inclination: 19.48182 +/- 0.000
Eccentricity: 0.11878729 +/- 0.0001
Semi-Major Axis: 46.07516067 +/- 0.0093
Time of Perihelion: 2439104.0835 +/- 13.3
Perihelion: 40.60201725 +/- 0.0096
Aphelion: 51.54830408 +/- 0.0116
Period (y) 312.7580 +/- 0.09
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 17.36047298 +/- 0.0007
Ecliptic Y 38.53766342 +/- 0.0016
Ecliptic Z 3.05754350 +/- 0.0001
Ecliptic XDOT -0.00223242 +/- 0.0000
Ecliptic YDOT 0.00134033 +/- 0.0000
Ecliptic ZDOT -0.00087340 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.37783872 +/- 0.0015
Geocenter to KBO 41.45671650 +/- 0.0017
# Hcoef: 6.94
The following table shows the complete astrometric record for 02VF130. 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 (02VF130) followed by the observatory code and reference code for the source of the astrometry.
2002 11 07.35859 04 14 15.17 +25 30 53.4 23.2R 02VF130 695 Cg8319 2002 11 07.45565 04 14 14.70 +25 30 52.0 02VF130 695 Cg8319 2002 11 08.46612 04 14 09.71 +25 30 37.4 02VF130 695 C47440 2002 12 02.44669 04 12 04.64 +25 23 59.9 23.2R 02VF130 568 Ch0066 2002 12 02.49604 04 12 04.37 +25 23 59.1 02VF130 568 Ch0066 2002 12 05.16992 04 11 50.31 +25 23 10.2 22.8R 02VF130 695 Ch0066 2002 12 05.28068 04 11 49.73 +25 23 07.8 02VF130 695 Ch0066 2002 12 06.13840 04 11 45.25 +25 22 51.8 02VF130 695 Ch0066 2002 12 06.23285 04 11 44.72 +25 22 50.4 02VF130 695 Ch0066 2002 12 31.207008 04 09 45.00 +25 14 56.9 22.6V 02VF130 645 C~2Jx8 2002 12 31.207838 04 09 44.99 +25 14 56.8 22.3V 02VF130 645 C~2Jx8 2002 12 31.210325 04 09 44.98 +25 14 56.8 23.5V 02VF130 645 C~2Jx8 2003 11 20.32791 04 19 11.65 +25 14 32.7 22.6R 02VF130 695 Cl9844 2003 11 20.40682 04 19 11.26 +25 14 31.6 02VF130 695 Cl9844 2004 11 09.44702 04 26 01.07 +25 03 01.4 22.9R 02VF130 695 Cl9844 2004 11 10.39197 04 25 56.38 +25 02 48.9 02VF130 695 Cl9844 2004 11 10.46745 04 25 56.01 +25 02 47.8 02VF130 695 Cl9844 2008 11 03.81624 04 49 43.28 +23 59 51.0 23.7R 02VF130 250 S~06Aa 2008 11 03.82249 04 49 43.25 +23 59 51.0 02VF130 250 S~06Aa 2008 11 03.82944 04 49 43.22 +23 59 50.9 02VF130 250 S~06Aa 2008 11 03.83569 04 49 43.19 +23 59 50.9 02VF130 250 S~06Aa 2020 11 14.428360 05 53 45.055 +19 44 56.31 23.4G 02VF130 G37 C~4NEY 2020 11 14.475780 05 53 44.882 +19 44 55.64 02VF130 G37 C~4NEY 2020 11 14.504800 05 53 44.720 +19 44 54.90 02VF130 G37 C~4NEY
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 0.11 0.00 -0.04
2 0.0003 0.00 0.33 0.00 -0.04
3 0.0030 0.00 0.30 0.00 -0.12
4 0.0687 0.00 -0.05 0.00 -0.24
5 0.0688 0.00 -0.12 0.00 -0.13
6 0.0761 0.00 0.10 0.00 0.18
7 0.0764 0.00 0.25 0.00 -0.19
8 0.0788 0.00 0.33 0.00 -0.25
9 0.0791 0.00 -0.11 0.00 0.08
10 0.1474 0.00 0.10 0.00 -0.31
11 0.1474 0.00 0.00 0.00 -0.39
12 0.1474 0.00 0.01 0.00 -0.34
13 1.0348 0.00 -0.54 0.00 0.23
14 1.0350 0.00 -0.10 0.00 0.39
15 2.0071 0.00 -0.04 0.00 0.24
16 2.0097 0.00 -0.79 0.00 0.50
17 2.0099 0.00 -0.67 0.00 0.45
18 5.9917 0.00 0.18 0.00 0.07
19 5.9917 0.00 0.13 0.00 0.14
20 5.9917 0.00 0.13 0.00 0.11
21 5.9917 0.00 0.09 0.00 0.18
22 18.0207 0.00 0.02 0.00 0.30
23 18.0209 0.00 0.27 0.00 -0.00
24 18.0209 0.00 -0.42 0.00 -0.51
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.
02VF130 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.236 46.236 46.235 ecceobj 0.124 0.124 0.124 incobj 19.482 19.482 19.482 qmin 39.882 39.891 39.898 qmax 52.217 52.214 52.225 amean 45.888 45.888 45.888 amin 45.511 45.514 45.514 amax 46.290 46.286 46.285 emean 0.115 0.115 0.115 emin 0.103 0.103 0.103 emax 0.128 0.128 0.128 imean 21.094 21.095 21.094 imin 20.745 20.744 20.744 imax 21.388 21.388 21.388 excite_mean 0.378 0.378 0.378 fracstop 1.000 1.000 1.000 cjmean 2.944 2.944 2.944 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 180.7 180.8 180.7 kozaiamp 180.0 180.0 180.0