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: 385194 # Created Fri Dec 27 02:06:57 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 74 observations of 74 # Arc: 23.32y # First observation: 1998/05/20 # Last observation: 2021/09/12 # Chi-squared of fit: 183.29 DOF: 142 RMS: 0.28 # Min/Max residuals: -1.48 0.85 # Exact a, adot, b, bdot, g, gdot: 1.436687E-05 2.038347E-02 4.655360E-07 2.379187E-04 2.229973E-02 -1.021271E-04 # 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 -0.437502 -55.287844 0.926875 -0.003347 -0.411765 2450953.823321 # Heliocentric elements and errors Epoch: 2450954.5000 = 1998/05/21 Mean Anomaly: 218.74351 +/- 0.000 Argument of Peri: 110.95197 +/- 0.000 Long of Asc Node: 337.01169 +/- 0.000 Inclination: 0.78584 +/- 0.000 Eccentricity: 0.04608045 +/- 0.0000 Semi-Major Axis: 43.66744939 +/- 0.0000 Time of Perihelion: 2492310.7418 +/- 0.0 Perihelion: 41.65523362 +/- 0.0000 Aphelion: 45.67966517 +/- 0.0000 Period (y) 288.5659 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.01701101 +/- 0.0000 Ecliptic Y -37.72967746 +/- 0.0000 Ecliptic Z -0.34240370 +/- 0.0000 Ecliptic XDOT 0.00205186 +/- 0.0000 Ecliptic YDOT 0.00144407 +/- 0.0000 Ecliptic ZDOT 0.00002923 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.27138473 +/- 0.0000 Geocenter to KBO 44.84362385 +/- 0.0000 # Hcoef: 6.58
The following table shows the complete astrometric record for 385194. 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 (385194) followed by the observatory code and reference code for the source of the astrometry.
1998 05 20.32259 20 28 39.83 -19 30 37.5 23.1R 385194 807 Ca1785 1998 05 20.32947 20 28 39.83 -19 30 37.5 23.0R 385194 807 Ca1785 1998 05 20.33656 20 28 39.83 -19 30 37.6 22.5R 385194 807 Ca1785 1998 05 20.34343 20 28 39.80 -19 30 37.7 23.3R 385194 807 Ca1785 1998 05 20.35031 20 28 39.80 -19 30 37.7 23.2R 385194 807 Ca1785 1998 05 20.35804 20 28 39.79 -19 30 37.8 23.2R 385194 807 Ca1785 1998 05 20.36498 20 28 39.77 -19 30 37.8 23.3R 385194 807 Ca1785 1998 05 20.37193 20 28 39.76 -19 30 37.8 23.2R 385194 807 Ca1785 1998 05 20.37885 20 28 39.75 -19 30 37.8 23.2R 385194 807 Ca1785 1998 05 20.38572 20 28 39.75 -19 30 37.9 23.0R 385194 807 Ca1785 1998 05 20.39267 20 28 39.73 -19 30 37.9 23.0R 385194 807 Ca1785 1998 05 20.39954 20 28 39.72 -19 30 38.0 22.9R 385194 807 Ca1785 1998 05 20.40648 20 28 39.71 -19 30 38.0 23.1R 385194 807 Ca1785 1998 05 20.41336 20 28 39.70 -19 30 38.0 22.8R 385194 807 Ca1785 1998 05 29.33008 20 28 24.22 -19 31 35.7 23.0R 385194 807 Ca1785 1998 05 29.33695 20 28 24.20 -19 31 35.7 22.9R 385194 807 Ca1785 1998 05 29.34383 20 28 24.19 -19 31 35.9 23.2R 385194 807 Ca1785 1998 05 29.35758 20 28 24.16 -19 31 35.9 22.8R 385194 807 Ca1785 1998 05 29.36446 20 28 24.14 -19 31 36.0 23.1R 385194 807 Ca1785 1998 05 29.37821 20 28 24.11 -19 31 36.1 23.1R 385194 807 Ca1785 1998 05 29.38509 20 28 24.10 -19 31 36.2 22.9R 385194 807 Ca1785 1998 05 29.39196 20 28 24.08 -19 31 36.2 23.2R 385194 807 Ca1785 1998 05 29.39884 20 28 24.07 -19 31 36.3 23.0R 385194 807 Ca1785 1998 05 29.40571 20 28 24.05 -19 31 36.4 22.9R 385194 807 Ca1785 1998 05 29.41260 20 28 24.04 -19 31 36.4 23.1R 385194 807 Ca1785 1998 05 30.31129 20 28 22.12 -19 31 43.5 23.2R 385194 807 Ca1785 1998 05 30.31817 20 28 22.11 -19 31 43.5 23.0R 385194 807 Ca1785 1998 05 30.32504 20 28 22.09 -19 31 43.5 22.9R 385194 807 Ca1785 1998 05 30.33192 20 28 22.07 -19 31 43.6 23.1R 385194 807 Ca1785 1998 05 30.33879 20 28 22.06 -19 31 43.6 22.8R 385194 807 Ca1785 1998 05 30.34567 20 28 22.04 -19 31 43.7 22.9R 385194 807 Ca1785 1998 05 30.35270 20 28 22.03 -19 31 43.8 22.7R 385194 807 Ca1785 1998 05 30.35957 20 28 22.01 -19 31 43.9 22.8R 385194 807 Ca1785 1998 05 30.36645 20 28 22.00 -19 31 43.9 22.9R 385194 807 Ca1785 1998 05 30.37332 20 28 21.98 -19 31 43.9 22.8R 385194 807 Ca1785 1998 05 30.38035 20 28 21.97 -19 31 44.0 23.0R 385194 807 Ca1785 1998 05 30.38722 20 28 21.95 -19 31 44.0 22.9R 385194 807 Ca1785 1998 05 30.39410 20 28 21.94 -19 31 44.2 22.7R 385194 807 Ca1785 1998 06 30.46970 20 26 42.07 -19 37 39.6 385194 568 Ca1785 1998 06 30.52193 20 26 41.86 -19 37 40.3 385194 568 Ca1785 1998 07 01.46389 20 26 38.02 -19 37 53.7 385194 568 Ca1785 1998 10 15.20490 20 20 39.65 -19 57 25.9 23.0R 385194 568 Ca2550 1998 10 16.20487 20 20 39.49 -19 57 26.1 22.8R 385194 568 Ca2550 1999 05 21.45459 20 33 26.58 -19 12 47.2 22.3R 385194 697 Cb0747 1999 05 22.43241 20 33 25.31 -19 12 52.9 22.8R 385194 697 Cb0747 1999 05 22.44609 20 33 25.27 -19 12 52.4 22.2R 385194 697 Cb0747 1999 05 22.45920 20 33 25.30 -19 12 52.7 22.5R 385194 697 Cb0747 1999 05 22.47234 20 33 25.24 -19 12 52.6 22.4R 385194 697 Cb0747 1999 05 23.42662 20 33 23.80 -19 12 58.8 22.5R 385194 697 Cb0747 1999 05 24.41990 20 33 22.29 -19 13 04.7 385194 697 Cb0747 1999 05 24.42902 20 33 22.28 -19 13 04.6 385194 697 Cb0747 1999 06 10.30106 20 32 44.45 -19 15 27.2 385194 829 Cb8997 1999 06 10.34494 20 32 44.36 -19 15 27.5 385194 829 Cb8997 1999 07 09.41067 20 30 57.35 -19 21 54.7 22.0V 385194 568 Ci2589 1999 07 09.46164 20 30 57.12 -19 21 55.3 22.3V 385194 568 Ci2589 2000 08 07.07119 20 33 35.05 -19 11 34.6 22.9R 385194 809 Cb8997 2000 08 07.10780 20 33 34.89 -19 11 35.3 23.0R 385194 809 Cb8997 2000 08 26.99485 20 32 09.48 -19 16 35.9 22.5R 385194 807 Cc0747 2000 08 27.06080 20 32 09.22 -19 16 36.8 385194 807 Cc0747 2001 05 22.55999 20 42 56.89 -18 35 45.0 385194 568 Cd2199 2001 05 22.59292 20 42 56.85 -18 35 45.2 385194 568 Cd2199 2001 05 23.52932 20 42 55.64 -18 35 50.3 385194 568 Cd2199 2001 05 23.54551 20 42 55.61 -18 35 50.3 385194 568 Cd2199 2005 06 14.421604 21 01 09.14 -17 19 00.4 385194 645 C~1dXj 2005 06 14.422433 21 01 09.14 -17 19 00.4 385194 645 C~1dXj 2005 06 14.424921 21 01 09.13 -17 19 00.4 385194 645 C~1dXj 2013 10 05.15547 21 31 51.68 -14 51 27.7 23.1R 385194 695 C~0zdB 2013 10 05.26913 21 31 51.41 -14 51 28.9 385194 695 C~0zdB 2013 10 06.17324 21 31 49.24 -14 51 39.4 385194 695 C~0zdB 2017 07 22.175122 21 55 25.46 -12 47 56.8 385194 W84 C~3hZv 2017 07 22.176181 21 55 25.46 -12 47 56.9 385194 W84 C~3hZv 2021 09 12.143430 22 10 24.364 -11 22 18.34 22.9G 385194 G37 C~590c 2021 09 12.201620 22 10 24.116 -11 22 19.70 385194 G37 C~590c 2021 09 12.258480 22 10 23.888 -11 22 20.91 385194 G37 C~590c
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 0.03 0.00 -0.06
2 0.0000 0.00 0.18 0.00 -0.02
3 0.0000 0.00 0.33 0.00 -0.08
4 0.0001 0.00 0.03 0.00 -0.14
5 0.0001 0.00 0.18 0.00 -0.11
6 0.0001 0.00 0.20 0.00 -0.17
7 0.0001 0.00 0.05 0.00 -0.13
8 0.0001 0.00 0.05 0.00 -0.09
9 0.0002 0.00 0.05 0.00 -0.06
10 0.0002 0.00 0.19 0.00 -0.12
11 0.0002 0.00 0.05 0.00 -0.09
12 0.0002 0.00 0.04 0.00 -0.15
13 0.0002 0.00 0.04 0.00 -0.11
14 0.0002 0.00 0.04 0.00 -0.08
15 0.0247 0.00 0.12 0.00 0.01
16 0.0247 0.00 0.05 0.00 0.06
17 0.0247 0.00 0.12 0.00 -0.09
18 0.0247 0.00 0.12 0.00 0.02
19 0.0248 0.00 0.04 0.00 -0.03
20 0.0248 0.00 0.04 0.00 -0.02
21 0.0248 0.00 0.12 0.00 -0.07
22 0.0248 0.00 0.04 0.00 -0.02
23 0.0248 0.00 0.12 0.00 -0.06
24 0.0249 0.00 0.04 0.00 -0.11
25 0.0249 0.00 0.11 0.00 -0.06
26 0.0273 0.00 0.02 0.00 -0.11
27 0.0274 0.00 0.10 0.00 -0.05
28 0.0274 0.00 0.03 0.00 0.00
29 0.0274 0.00 -0.04 0.00 -0.04
30 0.0274 0.00 0.04 0.00 0.01
31 0.0274 0.00 -0.02 0.00 -0.03
32 0.0275 0.00 0.06 0.00 -0.08
33 0.0275 0.00 -0.00 0.00 -0.12
34 0.0275 0.00 0.08 0.00 -0.07
35 0.0275 0.00 0.01 0.00 -0.01
36 0.0275 0.00 0.10 0.00 -0.06
37 0.0276 0.00 0.03 0.00 -0.00
38 0.0276 0.00 0.11 0.00 -0.15
39 0.1127 0.00 0.02 0.00 -0.17
40 0.1128 0.00 0.12 0.00 -0.12
41 0.1154 0.00 0.22 0.00 -0.10
42 0.4049 0.00 0.35 0.00 0.82
43 0.4076 0.00 0.04 0.00 0.34
44 1.0024 0.00 -0.70 0.00 0.58
45 1.0051 0.00 0.40 0.00 0.13
46 1.0051 0.00 0.10 0.00 0.70
47 1.0052 0.00 0.85 0.00 0.48
48 1.0052 0.00 0.24 0.00 0.65
49 1.0078 0.00 -0.52 0.00 -0.15
50 1.0105 0.00 -0.24 0.00 -0.14
51 1.0106 0.00 -0.17 0.00 0.01
52 1.0568 0.00 -1.48 0.00 -0.98
53 1.0569 0.00 -0.90 0.00 -0.82
54 1.1364 0.00 -0.47 0.00 -0.14
55 1.1366 0.00 -0.55 0.00 0.05
56 2.2170 0.00 -0.43 0.00 0.19
57 2.2171 0.00 -0.30 0.00 0.09
58 2.2715 0.00 -0.17 0.00 -0.03
59 2.2717 0.00 -0.10 0.00 -0.01
60 3.0068 0.00 -0.15 0.00 0.29
61 3.0069 0.00 -0.08 0.00 0.26
62 3.0095 0.00 -0.02 0.00 0.15
63 3.0095 0.00 -0.13 0.00 0.25
64 7.0694 0.00 0.25 0.00 0.01
65 7.0694 0.00 0.28 0.00 0.02
66 7.0694 0.00 0.23 0.00 0.05
67 15.3781 0.00 -0.13 0.00 0.19
68 15.3784 0.00 0.11 0.00 0.29
69 15.3808 0.00 0.13 0.00 -0.01
70 19.1728 0.00 -0.05 0.00 0.08
71 19.1728 0.00 0.01 0.00 -0.00
72 23.3150 0.00 0.04 0.00 -0.18
73 23.3152 0.00 -0.06 0.00 -0.23
74 23.3154 0.00 0.06 0.00 -0.16
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.
385194 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.457 43.457 43.457 ecceobj 0.051 0.051 0.051 incobj 0.790 0.790 0.790 qmin 40.026 40.001 40.026 qmax 46.993 47.055 46.997 amean 43.457 43.457 43.457 amin 43.126 43.128 43.125 amax 43.792 43.797 43.798 emean 0.060 0.060 0.060 emin 0.043 0.042 0.043 emax 0.074 0.075 0.074 imean 2.120 2.120 2.120 imin 1.130 1.129 1.130 imax 2.952 2.952 2.952 excite_mean 0.071 0.071 0.071 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 179.1 179.2 179.3 kozaiamp 180.0 180.0 180.0