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: 612147
# Created Wed Dec 25 02:07:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 39 observations of 39
# Arc: 21.12y
# First observation: 2000/02/05
# Last observation: 2021/03/20
# Chi-squared of fit: 188.27 DOF: 72 RMS: 0.39
# Min/Max residuals: -1.50 0.72
# Exact a, adot, b, bdot, g, gdot:
1.645244E-05 2.382236E-02 -1.419672E-06 9.758667E-05 2.420347E-02 -3.468308E-05
# 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
0.485226 120.483132 -0.265177 0.007857 -0.952520 2451579.645773
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 11.35260 +/- 0.000
Argument of Peri: 51.62832 +/- 0.000
Long of Asc Node: 56.93052 +/- 0.000
Inclination: 0.52806 +/- 0.000
Eccentricity: 0.03908902 +/- 0.0000
Semi-Major Axis: 43.95043131 +/- 0.0000
Time of Perihelion: 2448224.3926 +/- 0.0
Perihelion: 42.23245208 +/- 0.0000
Aphelion: 45.66841053 +/- 0.0000
Period (y) 291.3754 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -21.66380198 +/- 0.0000
Ecliptic Y 36.29337825 +/- 0.0000
Ecliptic Z 0.34984369 +/- 0.0000
Ecliptic XDOT -0.00232590 +/- 0.0000
Ecliptic YDOT -0.00136332 +/- 0.0000
Ecliptic ZDOT 0.00001111 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.26880147 +/- 0.0000
Geocenter to KBO 41.31642743 +/- 0.0000
# Hcoef: 7.05
The following table shows the complete astrometric record for 612147. 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 (612147) followed by the observatory code and reference code for the source of the astrometry.
2000 02 05.14503 08 11 10.84 +20 31 16.2 22.8R 612147 695 Cb1115 2000 02 05.25674 08 11 10.28 +20 31 17.9 612147 695 Cb1115 2000 03 01.10905 08 09 21.30 +20 36 46.2 23.0R 612147 695 Cb1115 2000 03 01.31221 08 09 20.61 +20 36 48.6 612147 695 Cb1115 2000 03 29.18281 08 08 09.99 +20 40 08.1 22.3R 612147 695 Cd7512 2000 11 26.46873 08 21 51.62 +19 56 48.7 23.4R 612147 695 Cc2331 2000 11 26.54215 08 21 51.45 +19 56 49.5 23.3R 612147 695 Cc2331 2000 11 27.50450 08 21 49.26 +19 56 57.4 23.0R 612147 695 Cc2331 2001 02 25.26792 08 15 17.71 +20 18 34.1 23.1R 612147 568 Cd0809 2001 02 25.34010 08 15 17.41 +20 18 34.9 612147 568 Cd0809 2001 03 24.11802 08 13 56.44 +20 22 39.3 23.0R 612147 695 Cc7839 2001 03 24.22794 08 13 56.17 +20 22 40.0 612147 695 Cc7839 2001 03 25.13683 08 13 54.50 +20 22 44.5 25.0R 612147 695 Cd0020 2001 03 25.22080 08 13 54.33 +20 22 45.2 612147 695 Cd0020 2001 12 14.26677 08 26 37.40 +19 41 07.3 20.5 612147 304 Ce8743 2001 12 14.30147 08 26 37.30 +19 41 07.7 612147 304 Ce8743 2002 02 03.48657 08 22 38.94 +19 54 51.4 22.9R 612147 568 Cf1711 2002 02 03.58512 08 22 38.44 +19 54 52.9 612147 568 Cf1711 2002 02 05.47681 08 22 29.09 +19 55 23.9 612147 568 Cf1711 2002 02 14.15691 08 21 47.35 +19 57 43.8 22.4R 612147 304 f1711 2002 02 14.18053 08 21 47.24 +19 57 44.3 612147 304 f1711 2003 03 03.26971 08 26 14.40 +19 42 50.9 612147 568 Ch5665 2003 03 03.29903 08 26 14.29 +19 42 51.3 612147 568 Ch5665 2013 03 12.13662 09 20 31.94 +16 05 25.4 23.6R 612147 G37 C~0qSP 2013 03 12.27536 09 20 31.40 +16 05 28.1 612147 G37 C~0qSP 2016 01 11.292309 09 41 05.85 +14 26 27.7 612147 W84 C~3i9U 2016 01 11.293385 09 41 05.83 +14 26 27.9 612147 W84 C~3i9U 2018 03 17.098258 09 46 47.24 +13 57 40.5 612147 W84 C~3i9U 2018 03 17.119734 09 46 47.16 +13 57 40.9 612147 W84 C~3i9U 2019 04 05.151500 09 50 56.756 +13 36 01.39 23.8G 612147 G37 C~34bV 2019 04 05.225510 09 50 56.535 +13 36 02.63 612147 G37 C~34bV 2020 01 04.349620 10 02 20.74 +12 35 32.7 23.5G 612147 705 C~3skl 2020 01 04.416030 10 02 20.50 +12 35 34.3 22.8G 612147 705 C~3skl 2020 01 04.506320 10 02 20.27 +12 35 35.5 23.3G 612147 705 C~3skl 2021 01 11.430340 10 07 03.218 +12 09 56.70 24.2G 612147 G37 C~4Tvi 2021 01 11.471310 10 07 03.082 +12 09 57.38 612147 G37 C~4Tvi 2021 03 20.160190 10 02 09.637 +12 36 38.87 23.5G 612147 G37 C~4hh4 2021 03 20.199460 10 02 09.472 +12 36 39.65 612147 G37 C~4hh4 2021 03 20.238440 10 02 09.312 +12 36 40.51 612147 G37 C~4hh4
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 -0.12 0.00 0.34
2 0.0003 0.00 -0.15 0.00 0.33
3 0.0683 0.00 -0.96 0.00 0.38
4 0.0689 0.00 0.10 0.00 0.59
5 0.1452 0.00 0.55 0.00 -0.12
6 0.8086 0.00 0.22 0.00 -0.13
7 0.8088 0.00 0.21 0.00 0.08
8 0.8114 0.00 0.13 0.00 0.00
9 1.0571 0.00 -0.24 0.00 0.08
10 1.0573 0.00 -0.30 0.00 -0.02
11 1.1307 0.00 0.59 0.00 0.14
12 1.1310 0.00 -0.19 0.00 0.25
13 1.1334 0.00 -0.01 0.00 -0.06
14 1.1337 0.00 -0.18 0.00 0.22
15 1.8566 0.00 -0.39 0.00 0.21
16 1.8567 0.00 -0.01 0.00 0.16
17 1.9968 0.00 0.59 0.00 -1.08
18 1.9971 0.00 0.53 0.00 -1.19
19 2.0023 0.00 0.72 0.00 -1.50
20 2.0260 0.00 -0.17 0.00 0.10
21 2.0261 0.00 -0.14 0.00 0.24
22 3.0722 0.00 -0.38 0.00 0.41
23 3.0723 0.00 -0.32 0.00 0.43
24 13.0979 0.00 -0.51 0.00 0.07
25 13.0982 0.00 -0.38 0.00 0.34
26 15.9320 0.00 0.23 0.00 -0.13
27 15.9320 0.00 -0.01 0.00 0.05
28 18.1108 0.00 0.27 0.00 -0.09
29 18.1108 0.00 0.35 0.00 -0.11
30 19.1622 0.00 0.25 0.00 -0.41
31 19.1624 0.00 0.10 0.00 -0.20
32 19.9129 0.00 -0.18 0.00 -0.17
33 19.9131 0.00 -0.67 0.00 0.29
34 19.9134 0.00 0.12 0.00 -0.05
35 20.9344 0.00 -0.10 0.00 0.19
36 20.9345 0.00 0.03 0.00 0.07
37 21.1198 0.00 0.24 0.00 0.11
38 21.1199 0.00 0.10 0.00 0.08
39 21.1200 0.00 0.01 0.00 0.13
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.
612147 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.936 43.936 43.936 ecceobj 0.039 0.039 0.039 incobj 0.528 0.528 0.528 qmin 41.141 41.139 41.145 qmax 46.855 46.859 46.851 amean 43.908 43.909 43.909 amin 43.567 43.566 43.568 amax 44.260 44.265 44.256 emean 0.043 0.043 0.043 emin 0.026 0.026 0.026 emax 0.059 0.059 0.059 imean 1.362 1.362 1.362 imin 0.582 0.582 0.582 imax 1.970 1.970 1.970 excite_mean 0.050 0.050 0.050 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 190.5 190.5 190.4 kozaiamp 180.0 180.0 180.0