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: 385185
# Created Sun Dec 22 02:07:04 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 46 observations of 46
# Arc: 27.10y
# First observation: 1993/09/14
# Last observation: 2020/10/20
# Chi-squared of fit: 791.28 DOF: 86 RMS: 0.73
# Min/Max residuals: -1.88 1.38
# Exact a, adot, b, bdot, g, gdot:
2.472611E-05 3.999608E-02 7.881224E-07 -2.596379E-03 3.275320E-02 -1.077207E-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
0.030295 -10.208368 -0.037859 0.000566 -1.005887 2449244.837097
# Heliocentric elements and errors
Epoch: 2449244.5000 = 1993/09/14
Mean Anomaly: 354.31352 +/- 0.000
Argument of Peri: 188.15280 +/- 0.000
Long of Asc Node: 170.30342 +/- 0.000
Inclination: 3.72041 +/- 0.000
Eccentricity: 0.19561897 +/- 0.0000
Semi-Major Axis: 39.13397502 +/- 0.0000
Time of Perihelion: 2450656.9418 +/- 0.0
Perihelion: 31.47862721 +/- 0.0000
Aphelion: 46.78932284 +/- 0.0000
Period (y) 244.8156 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 31.04326264 +/- 0.0000
Ecliptic Y -5.55703355 +/- 0.0000
Ecliptic Z 0.01619185 +/- 0.0000
Ecliptic XDOT 0.00050772 +/- 0.0000
Ecliptic YDOT 0.00330147 +/- 0.0000
Ecliptic ZDOT -0.00021717 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.53673967 +/- 0.0000
Geocenter to KBO 30.53141203 +/- 0.0000
# Hcoef: 8.35
The following table shows the complete astrometric record for 385185. 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 (385185) followed by the observatory code and reference code for the source of the astrometry.
1993 09 14.3364 23 22 25.55 -04 00 52.9 23. R 385185 568 C22539 1993 09 14.5241 23 22 24.47 -04 00 59.9 385185 568 C22539 1993 09 15.4216 23 22 19.41 -04 01 33.4 385185 568 C22539 1993 09 15.4723 23 22 19.12 -04 01 35.1 385185 568 C22539 1993 09 16.4090 23 22 13.83 -04 02 10.0 385185 568 C22539 1993 09 16.4216 23 22 13.74 -04 02 10.1 385185 568 C22539 1993 09 17.4060 23 22 08.18 -04 02 46.8 385185 568 C22539 1993 09 17.4183 23 22 08.07 -04 02 47.4 385185 568 C22539 1993 09 20.0877 23 21 53.2 -04 04 29. 385185 950 YC22661 1994 08 10.31135 23 34 09.94 -02 54 17.6 385185 809 C28036 1994 08 10.42059 23 34 09.47 -02 54 20.5 385185 809 C28036 1994 08 15.06744 23 33 48.46 -02 56 42.2 385185 950 C23955 1994 08 15.13596 23 33 48.16 -02 56 44.3 385185 950 C23955 1994 08 16.07619 23 33 43.78 -02 57 14.6 385185 950 C23955 1994 08 16.13994 23 33 43.43 -02 57 15.9 385185 950 C23955 1994 09 05.5318 23 31 57.44 -03 09 15.6 23. R 385185 568 A23904 1994 09 05.5409 23 31 57.40 -03 09 16.0 385185 568 A23904 1994 09 05.5503 23 31 57.35 -03 09 16.5 385185 568 A23904 1994 09 05.5583 23 31 57.29 -03 09 16.7 385185 568 A23904 1994 09 07.4460 23 31 46.73 -03 10 26.8 385185 568 A23904 1994 09 07.4581 23 31 46.69 -03 10 27.0 385185 568 A23904 1994 09 07.4763 23 31 46.54 -03 10 27.9 385185 568 A23904 1994 09 07.4879 23 31 46.51 -03 10 28.3 385185 568 A23904 1994 10 08.03252 23 28 57.97 -03 29 19.3 23. 385185 809 C24212 1994 10 08.20222 23 28 57.09 -03 29 24.9 385185 809 C24212 1994 10 09.15667 23 28 52.27 -03 29 57.4 385185 809 C24212 1994 10 09.28323 23 28 51.61 -03 30 01.7 385185 809 C24212 1995 06 22.451 23 44 16.85 -01 56 55.7 385185 675 C25381 1995 06 23.463 23 44 17.64 -01 56 52.7 385185 675 C25381 1995 06 24.450 23 44 18.33 -01 56 50.4 385185 675 C25381 1995 06 25.453 23 44 18.86 -01 56 49.2 385185 675 C25381 1995 10 23.3996 23 36 25.76 -02 51 17.8 385185 568 C26263 1995 10 23.4324 23 36 25.59 -02 51 18.8 385185 568 C26263 1996 09 10.27010 23 48 50.42 -01 39 39.2 385185 711 C27868 1996 09 10.30139 23 48 50.23 -01 39 39.6 385185 711 C27868 1996 09 10.30933 23 48 50.22 -01 39 39.2 385185 711 C27868 1997 09 08.44866 23 57 43.50 -00 51 32.3 385185 675 C30579 1997 09 08.49495 23 57 43.23 -00 51 34.3 385185 675 C30579 1999 09 08.35271 00 15 09.01 +00 42 36.7 385185 568 Ch3030 1999 09 08.40432 00 15 08.70 +00 42 35.0 385185 568 Ch3030 2013 10 05.43350 02 12 34.18 +10 32 26.5 23.7R 385185 695 C~0zdB 2013 10 05.49738 02 12 33.84 +10 32 24.7 385185 695 C~0zdB 2013 10 06.44991 02 12 28.83 +10 31 55.6 385185 695 C~0zdB 2020 10 20.313850 03 09 12.651 +14 18 39.46 23.8G 385185 G37 C~4Kex 2020 10 20.440390 03 09 11.962 +14 18 36.24 385185 G37 C~4Kex 2020 10 20.502140 03 09 11.594 +14 18 34.83 385185 G37 C~4Kex
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 -0.86 0.00 -0.83
2 0.0005 0.00 -0.79 0.00 -0.73
3 0.0030 0.00 -0.53 0.00 -0.31
4 0.0031 0.00 -0.49 0.00 -0.09
5 0.0057 0.00 -0.37 0.00 0.37
6 0.0057 0.00 -0.63 0.00 0.74
7 0.0084 0.00 -0.56 0.00 1.15
8 0.0084 0.00 -1.15 0.00 1.01
9 0.0157 0.00 1.38 0.00 -0.35
10 0.9034 0.00 0.42 0.00 -0.66
11 0.9037 0.00 0.61 0.00 -0.33
12 0.9164 0.00 -1.79 0.00 0.69
13 0.9166 0.00 -1.41 0.00 0.76
14 0.9192 0.00 -1.24 0.00 0.40
15 0.9194 0.00 -1.88 0.00 1.14
16 0.9752 0.00 0.98 0.00 -0.67
17 0.9752 0.00 1.15 0.00 -0.73
18 0.9753 0.00 1.20 0.00 -0.88
19 0.9753 0.00 0.98 0.00 -0.78
20 0.9805 0.00 0.67 0.00 0.11
21 0.9805 0.00 1.11 0.00 0.36
22 0.9805 0.00 0.42 0.00 0.15
23 0.9806 0.00 0.97 0.00 0.18
24 1.0642 0.00 0.79 0.00 -0.08
25 1.0647 0.00 0.79 0.00 0.11
26 1.0673 0.00 0.81 0.00 0.00
27 1.0676 0.00 0.61 0.00 -0.03
28 1.7690 0.00 0.09 0.00 -0.44
29 1.7717 0.00 0.26 0.00 -0.43
30 1.7744 0.00 0.88 0.00 -0.32
31 1.7772 0.00 0.67 0.00 -0.61
32 2.1056 0.00 0.00 0.00 0.56
33 2.1057 0.00 -0.39 0.00 0.50
34 2.9896 0.00 -1.32 0.00 -0.93
35 2.9896 0.00 -1.51 0.00 -0.14
36 2.9897 0.00 -0.98 0.00 0.56
37 3.9839 0.00 0.79 0.00 -0.32
38 3.9840 0.00 0.59 0.00 -0.59
39 5.9822 0.00 0.21 0.00 0.67
40 5.9824 0.00 -0.28 0.00 0.85
41 20.0578 0.00 -0.37 0.00 -0.16
42 20.0579 0.00 -0.33 0.00 0.00
43 20.0605 0.00 0.28 0.00 0.11
44 27.0992 0.00 0.15 0.00 -0.05
45 27.0995 0.00 0.28 0.00 -0.10
46 27.0997 0.00 -0.15 0.00 0.06
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.
385185 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.575 39.575 39.575 ecceobj 0.204 0.204 0.204 incobj 3.706 3.706 3.706 qmin 30.992 30.950 30.999 qmax 48.670 48.832 48.686 amean 39.457 39.457 39.457 amin 38.918 38.906 38.910 amax 40.038 40.082 40.040 emean 0.199 0.200 0.199 emin 0.182 0.182 0.182 emax 0.216 0.218 0.217 imean 3.980 3.819 4.087 imin 3.239 2.952 3.239 imax 4.585 4.540 4.711 excite_mean 0.211 0.211 0.211 fracstop 1.000 1.000 1.000 cjmean 3.001 3.001 3.001 libcent 0 179.7 179.4 179.1 libamp 0 124.5 127.2 124.7 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 186.3 158.7 183.9 kozaiamp 180.0 180.0 180.0