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: 612145
# Created Sat Apr 20 01:09:11 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 28 observations of 28
# Arc: 14.07y
# First observation: 2000/02/06
# Last observation: 2014/03/02
# Chi-squared of fit: 111.75 DOF: 50 RMS: 0.35
# Min/Max residuals: -0.85 0.95
# Exact a, adot, b, bdot, g, gdot:
1.711547E-05 2.919263E-02 -4.680193E-06 -6.862747E-03 2.888175E-02 7.333102E-03
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
3.121880 149.398385 0.208047 0.052446 -0.965570 2451580.847063
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 69.43020 +/- 0.000
Argument of Peri: 70.21064 +/- 0.000
Long of Asc Node: 341.78982 +/- 0.000
Inclination: 13.53232 +/- 0.000
Eccentricity: 0.23688735 +/- 0.0000
Semi-Major Axis: 36.65908699 +/- 0.0000
Time of Perihelion: 2435944.8178 +/- 0.0
Perihelion: 27.97501298 +/- 0.0000
Aphelion: 45.34316101 +/- 0.0000
Period (y) 221.9630 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -30.47733676 +/- 0.0000
Ecliptic Y 18.27358876 +/- 0.0000
Ecliptic Z 1.88547658 +/- 0.0000
Ecliptic XDOT -0.00204236 +/- 0.0000
Ecliptic YDOT -0.00200339 +/- 0.0000
Ecliptic ZDOT -0.00061163 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.58563430 +/- 0.0000
Geocenter to KBO 34.62384050 +/- 0.0000
# Hcoef: 7.97
The following table shows the complete astrometric record for 612145. 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 (612145) followed by the observatory code and reference code for the source of the astrometry.
2000 02 06.34632 10 10 34.02 +14 36 19.4 23.0R 612145 695 Cb1114 2000 02 06.48598 10 10 33.23 +14 36 23.4 612145 695 Cb1114 2000 02 27.15723 10 08 36.08 +14 45 44.4 23.0R 612145 695 Cb1114 2000 02 27.24810 10 08 35.53 +14 45 46.7 612145 695 Cb1114 2000 02 27.26181 10 08 35.46 +14 45 47.1 612145 695 Cb1114 2000 02 27.29274 10 08 35.27 +14 45 47.8 612145 695 Cb1114 2000 04 10.16993 10 05 14.08 +14 59 02.6 24.7R 612145 695 Cb4131 2000 04 10.25384 10 05 13.77 +14 59 03.2 612145 695 Cb4131 2001 01 30.18524 10 16 57.29 +13 36 00.4 23.2R 612145 809 Cc6636 2001 01 30.29334 10 16 56.72 +13 36 03.3 23.4R 612145 809 Cc6636 2001 01 31.20594 10 16 52.00 +13 36 27.4 23.7R 612145 809 Cc6636 2002 02 05.52379 10 22 07.17 +12 41 37.1 23.1R 612145 568 Cf1711 2002 02 05.58752 10 22 06.85 +12 41 38.9 612145 568 Cf1711 2002 02 15.21428 10 21 14.59 +12 46 05.1 21.2R 612145 304 f1711 2002 02 15.24001 10 21 14.44 +12 46 05.8 612145 304 f1711 2003 02 05.29256 10 27 44.71 +11 44 38.6 23.2V 612145 I03 Ch9646 2003 02 05.34923 10 27 44.45 +11 44 40.2 23.6V 612145 I03 Ch9646 2005 04 10.18487 10 33 16.12 +10 19 00.9 23.6R 612145 695 Cn3068 2005 04 10.27051 10 33 15.82 +10 19 01.4 612145 695 Cn3068 2005 04 11.19123 10 33 12.51 +10 19 16.7 612145 695 Cn3068 2013 03 13.34809 11 15 12.43 +02 59 19.6 23.5R 612145 695 C~0uco 2013 03 14.32276 11 15 07.49 +02 59 47.4 612145 695 C~0uco 2013 03 14.43282 11 15 06.96 +02 59 50.8 612145 695 C~0uco 2014 03 01.103678 11 20 54.51 +02 02 01.5 612145 W84 C~3i9U 2014 03 01.208897 11 20 53.99 +02 02 03.7 612145 W84 C~3i9U 2014 03 01.303155 11 20 53.53 +02 02 06.3 612145 W84 C~3i9U 2014 03 02.097125 11 20 49.57 +02 02 27.9 612145 W84 C~3i9U 2014 03 02.279931 11 20 48.67 +02 02 33.2 612145 W84 C~3i9U
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 -0.16 0.00 0.26
2 0.0004 0.00 -0.25 0.00 0.43
3 0.0570 0.00 0.53 0.00 0.11
4 0.0572 0.00 0.10 0.00 0.04
5 0.0573 0.00 0.23 0.00 0.08
6 0.0573 0.00 0.05 0.00 -0.02
7 0.1747 0.00 -0.01 0.00 -0.02
8 0.1750 0.00 -0.54 0.00 -0.15
9 0.9824 0.00 -0.16 0.00 0.16
10 0.9827 0.00 -0.18 0.00 0.17
11 0.9852 0.00 -0.02 0.00 -0.22
12 1.9991 0.00 0.04 0.00 -0.44
13 1.9993 0.00 0.38 0.00 -0.38
14 2.0256 0.00 0.41 0.00 -0.84
15 2.0257 0.00 0.33 0.00 -0.85
16 2.9978 0.00 -0.64 0.00 0.87
17 2.9980 0.00 -0.08 0.00 0.95
18 5.1741 0.00 -0.27 0.00 0.29
19 5.1743 0.00 0.02 0.00 -0.59
20 5.1769 0.00 0.13 0.00 0.13
21 13.0979 0.00 0.23 0.00 -0.03
22 13.1006 0.00 -0.35 0.00 -0.05
23 13.1009 0.00 0.11 0.00 0.22
24 14.0637 0.00 -0.05 0.00 0.56
25 14.0640 0.00 0.08 0.00 -0.12
26 14.0642 0.00 0.29 0.00 -0.11
27 14.0664 0.00 -0.30 0.00 -0.34
28 14.0669 0.00 0.02 0.00 -0.08
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.
612145 quality flag:3 Type: 4:3E 4:3E 4:3E axisobj 36.648 36.649 36.648 ecceobj 0.237 0.237 0.237 incobj 13.534 13.534 13.534 qmin 26.963 27.104 26.864 qmax 46.484 46.377 46.590 amean 36.475 36.476 36.475 amin 35.998 35.981 35.997 amax 37.042 37.022 37.033 emean 0.235 0.234 0.243 emin 0.199 0.207 0.220 emax 0.260 0.255 0.261 imean 15.297 15.737 14.524 imin 14.058 14.036 13.239 imax 16.673 16.858 15.478 excite_mean 0.354 0.358 0.349 fracstop 1.000 1.000 1.000 cjmean 2.887 2.885 2.891 libcent 0 179.7 179.4 178.8 libamp 0 134.1 134.8 131.9 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 183.3 179.9 176.5 kozaiamp 180.0 180.0 180.0