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: 612144
# Created Wed Dec 25 02:07:37 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 25 observations of 25
# Arc: 19.16y
# First observation: 2000/02/06
# Last observation: 2019/04/05
# Chi-squared of fit: 47.59 DOF: 44 RMS: 0.24
# Min/Max residuals: -0.82 0.45
# Exact a, adot, b, bdot, g, gdot:
1.471059E-05 1.916150E-02 3.204321E-06 3.030197E-03 2.181484E-02 -1.505343E-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
3.076263 149.224775 0.205116 0.051711 -0.966236 2451580.847063
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 237.19677 +/- 0.000
Argument of Peri: 150.26371 +/- 0.000
Long of Asc Node: 130.61023 +/- 0.000
Inclination: 9.48891 +/- 0.000
Eccentricity: 0.09862259 +/- 0.0000
Semi-Major Axis: 44.16346873 +/- 0.0000
Time of Perihelion: 2488148.4391 +/- 0.0
Perihelion: 39.80795290 +/- 0.0000
Aphelion: 48.51898456 +/- 0.0000
Period (y) 293.4965 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.04822490 +/- 0.0000
Ecliptic Y 24.09520668 +/- 0.0000
Ecliptic Z 2.46018899 +/- 0.0000
Ecliptic XDOT -0.00105655 +/- 0.0000
Ecliptic YDOT -0.00216604 +/- 0.0000
Ecliptic ZDOT 0.00036972 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.80274103 +/- 0.0000
Geocenter to KBO 45.84044002 +/- 0.0000
# Hcoef: 6.74
The following table shows the complete astrometric record for 612144. 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 (612144) followed by the observatory code and reference code for the source of the astrometry.
2000 02 06.34632 10 09 49.80 +14 37 26.4 22.6R 612144 695 Cb1114 2000 02 06.48598 10 09 49.22 +14 37 29.9 612144 695 Cb1114 2000 02 27.15723 10 08 20.79 +14 46 15.2 22.8R 612144 695 Cb1114 2000 02 27.24810 10 08 20.40 +14 46 17.3 612144 695 Cb1114 2000 02 27.26181 10 08 20.32 +14 46 17.6 612144 695 Cb1114 2000 02 27.29274 10 08 20.19 +14 46 18.4 612144 695 Cb1114 2000 04 10.16993 10 05 47.97 +14 59 50.8 24.6R 612144 695 Cb4131 2000 04 10.25384 10 05 47.74 +14 59 51.6 612144 695 Cb4131 2001 02 25.45861 10 12 55.12 +14 32 16.3 23.0R 612144 568 Cd0809 2001 02 25.50079 10 12 54.93 +14 32 17.4 612144 568 Cd0809 2001 03 24.17961 10 11 08.72 +14 42 09.1 23.1R 612144 695 Cd0809 2001 03 24.32559 10 11 08.21 +14 42 11.9 612144 695 Cd0809 2002 02 15.20869 10 18 11.23 +14 13 44.8 21.9R 612144 304 f1711 2002 02 15.23465 10 18 11.13 +14 13 45.4 612144 304 f1711 2013 03 12.17674 11 06 26.91 +11 27 59.2 22.4R 612144 695 C~0uco 2013 03 12.23609 11 06 26.59 +11 28 00.3 612144 695 C~0uco 2013 03 13.21667 11 06 22.53 +11 28 26.8 612144 695 C~0uco 2016 01 17.347772 11 23 31.46 +10 07 24.4 612144 W84 C~3i9U 2016 01 17.348744 11 23 31.44 +10 07 24.4 612144 W84 C~3i9U 2019 03 07.191070 11 34 34.27 +09 31 37.7 23.2G 612144 705 C~31GV 2019 03 07.230490 11 34 34.11 +09 31 38.7 23.7G 612144 705 C~31GV 2019 03 07.292170 11 34 33.85 +09 31 40.5 23.2G 612144 705 C~31GV 2019 04 05.181800 11 32 34.021 +09 44 30.13 23.1G 612144 G37 C~34bV 2019 04 05.255390 11 32 33.724 +09 44 32.12 612144 G37 C~34bV 2019 04 05.363260 11 32 33.234 +09 44 34.80 612144 G37 C~34bV
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 -0.24 0.00 -0.13
2 0.0004 0.00 -0.06 0.00 -0.21
3 0.0570 0.00 0.10 0.00 0.02
4 0.0572 0.00 0.15 0.00 -0.12
5 0.0573 0.00 -0.16 0.00 -0.16
6 0.0573 0.00 -0.10 0.00 -0.11
7 0.1747 0.00 0.27 0.00 -0.16
8 0.1750 0.00 -0.04 0.00 -0.32
9 1.0544 0.00 0.02 0.00 0.18
10 1.0545 0.00 -0.07 0.00 0.23
11 1.1275 0.00 -0.09 0.00 0.00
12 1.1279 0.00 0.08 0.00 0.11
13 2.0256 0.00 -0.01 0.00 0.42
14 2.0257 0.00 0.18 0.00 0.34
15 13.0947 0.00 0.23 0.00 0.27
16 13.0948 0.00 -0.75 0.00 -0.23
17 13.0975 0.00 0.45 0.00 -0.00
18 15.9452 0.00 0.25 0.00 -0.01
19 15.9452 0.00 -0.02 0.00 -0.03
20 19.0797 0.00 -0.04 0.00 0.14
21 19.0798 0.00 0.09 0.00 -0.03
22 19.0799 0.00 0.14 0.00 -0.05
23 19.1590 0.00 0.27 0.00 -0.35
24 19.1592 0.00 0.17 0.00 -0.03
25 19.1595 0.00 -0.82 0.00 0.23
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.
612144 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.151 44.151 44.151 ecceobj 0.099 0.099 0.099 incobj 9.490 9.490 9.490 qmin 39.286 39.277 39.289 qmax 49.545 49.541 49.539 amean 44.312 44.310 44.315 amin 43.953 43.952 43.958 amax 44.696 44.697 44.693 emean 0.095 0.095 0.095 emin 0.081 0.081 0.080 emax 0.110 0.110 0.110 imean 8.105 8.099 8.104 imin 7.503 7.494 7.500 imax 8.792 8.792 8.791 excite_mean 0.170 0.170 0.170 fracstop 1.000 1.000 1.000 cjmean 3.071 3.071 3.071 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 184.5 184.2 184.6 kozaiamp 180.0 180.0 180.0