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: 508788
# Created Sun Nov 24 02:07:12 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 62 observations of 63
# Arc: 20.03y
# First observation: 2000/02/06
# Last observation: 2020/02/18
# Chi-squared of fit: 309.05 DOF: 118 RMS: 0.39
# Min/Max residuals: -2.11 0.63
# Exact a, adot, b, bdot, g, gdot:
1.364079E-05 2.128875E-02 -8.967080E-07 -4.652111E-04 2.265490E-02 2.532369E-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
2.446005 155.948528 0.316775 0.039773 -0.936182 2451580.860313
# Heliocentric elements and errors
Epoch: 2451580.5000 = 2000/02/06
Mean Anomaly: 73.31503 +/- 0.000
Argument of Peri: 30.76479 +/- 0.000
Long of Asc Node: 38.25496 +/- 0.000
Inclination: 2.69479 +/- 0.000
Eccentricity: 0.11608339 +/- 0.0000
Semi-Major Axis: 46.01285724 +/- 0.0000
Time of Perihelion: 2428363.4116 +/- 0.0
Perihelion: 40.67152881 +/- 0.0000
Aphelion: 51.35418567 +/- 0.0000
Period (y) 312.1239 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.99141251 +/- 0.0000
Ecliptic Y 18.64708206 +/- 0.0000
Ecliptic Z 1.88380098 +/- 0.0000
Ecliptic XDOT -0.00133563 +/- 0.0000
Ecliptic YDOT -0.00221666 +/- 0.0000
Ecliptic ZDOT -0.00004301 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.07273562 +/- 0.0000
Geocenter to KBO 44.14051338 +/- 0.0000
# Hcoef: 6.63
The following table shows the complete astrometric record for 508788. 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 (508788) followed by the observatory code and reference code for the source of the astrometry.
2000 02 06.35957 10 34 36.23 +11 36 10.0 22.6R 508788 695 Cb4132 2000 02 06.50407 10 34 35.61 +11 36 13.5 508788 695 Cb4132 2000 03 29.23579 10 30 59.63 +11 56 39.5 22.9R 508788 695 Cb4132 2000 04 02.15882 10 30 46.06 +11 57 49.2 23.0R 508788 695 Cb4132 2000 04 02.24102 10 30 45.80 +11 57 50.7 508788 695 Cb4132 2001 02 16.97543 10 38 22.62 +11 12 17.8 22.7R 508788 950 Cc6636 2001 02 17.01923 10 38 22.43 +11 12 19.0 22.5R 508788 950 Cc6636 2001 02 18.99651 10 38 13.90 +11 13 10.2 23.1R 508788 950 Cc6636 2001 02 19.03620 10 38 13.73 +11 13 11.1 508788 950 Cc6636 2001 03 24.18711 10 35 53.77 +11 26 27.4 23.0R 508788 695 Cc7840 2001 03 24.33699 10 35 53.20 +11 26 30.5 508788 695 Cc7840 2001 03 28.21095 10 35 38.63 +11 27 47.9 23.4R 508788 688 Cc7840 2001 03 28.28968 10 35 38.37 +11 27 49.5 508788 688 Cc7840 2002 02 15.22093 10 43 03.55 +10 42 35.5 20.2R 508788 304 f1711 2002 02 15.24558 10 43 03.40 +10 42 35.7 508788 304 f1711 2004 05 08.31650 10 47 23.47 +10 10 23.8 23.7R 508788 568 Ck9800 2007 11 11.51779 11 10 58.58 +07 35 30.5 23.9R 508788 250 S~06AM 2007 11 11.52543 11 10 58.60 +07 35 30.4 508788 250 S~06AM 2007 11 11.58446 11 10 58.77 +07 35 29.4 508788 250 S~06AM 2007 11 11.59210 11 10 58.79 +07 35 29.3 508788 250 S~06AM 2007 12 02.89974 11 11 42.85 +07 31 50.8 508788 250 S~06AM 2007 12 02.90737 11 11 42.86 +07 31 50.8 508788 250 S~06AM 2007 12 02.91501 11 11 42.87 +07 31 50.8 508788 250 S~06AM 2008 01 06.13237 11 11 35.14 +07 34 13.6 508788 250 S~06AM 2008 01 06.14904 11 11 35.11 +07 34 13.8 508788 250 S~06AM 2008 01 06.15668 11 11 35.10 +07 34 13.9 508788 250 S~06AM 2008 01 06.19765 11 11 35.03 +07 34 14.4 508788 250 S~06AM 2008 03 03.25724 11 08 28.27 +07 55 00.9 508788 695 Cy7584 2008 03 03.33951 11 08 27.91 +07 55 03.8 508788 695 Cy7584 2008 03 23.32532 11 07 04.75 +08 03 28.6 508788 250 S~06AM 2008 03 23.33157 11 07 04.73 +08 03 28.8 508788 250 S~06AM 2008 03 23.33921 11 07 04.69 +08 03 29.0 508788 250 S~06AM 2008 03 23.34823 11 07 04.65 +08 03 29.2 508788 250 S~06AM 2008 03 23.39198 11 07 04.48 +08 03 30.2 508788 250 S~06AM 2008 03 23.40171 11 07 04.44 +08 03 30.5 508788 250 S~06AM 2008 03 23.40934 11 07 04.42 +08 03 30.6 508788 250 S~06AM 2008 03 23.41559 11 07 04.39 +08 03 30.8 508788 250 S~06AM 2013 03 13.35169 11 29 02.09 +05 33 17.4 23.0R 508788 695 C~0uco 2013 03 14.32814 11 28 58.03 +05 33 42.6 508788 695 C~0uco 2013 03 14.43677 11 28 57.58 +05 33 45.7 508788 695 C~0uco 2015 03 23.16795 11 36 44.32 +04 38 50.1 23.1R 508788 695 C~1Q39 2015 03 23.23218 11 36 44.05 +04 38 51.7 508788 695 C~1Q39 2015 03 23.29146 11 36 43.80 +04 38 53.2 508788 695 C~1Q39 2017 05 27.25716 11 41 53.119 +03 58 24.45 24.0w 508788 568 C~2WX0 2017 05 27.26116 11 41 53.110 +03 58 24.61 23.7w 508788 568 C~2WX0 2017 05 28.26245 11 41 52.264 +03 58 27.30 23.5w 508788 568 C~2WX0 2017 12 16.62670 11 52 49.584 +02 45 09.60 23.7w 508788 568 C~2WX0 2018 03 18.46308 11 49 23.27 +03 09 29.4 23.3i 508788 T09 C~80vk 2018 03 18.50838 11 49 23.10 +03 09 30.9 23.2i 508788 T09 C~80vk 2018 03 18.56536 11 49 22.84 +03 09 32.3 22.8i 508788 T09 C~80vk 2018 04 24.35876 11 47 05.23 +03 23 38.1 23.2z 508788 T09 C~7d5c 2018 04 24.40415 11 47 05.09 +03 23 38.8 22.7z 508788 T09 C~7d5c 2018 04 24.48803 11 47 04.83 +03 23 40.4 23.1z 508788 T09 C~7d5c 2018 04 24.49071 11 47 04.81 +03 23 40.4 23.0z 508788 T09 C~7d5c 2019 03 02.52148 11 54 31.89 +02 33 30.0 22.8y 508788 T09 C~7d5c 2019 03 02.56189 11 54 31.72 +02 33 31.0 22.8y 508788 T09 C~7d5c 2019 03 02.60285 11 54 31.57 +02 33 32.2 23.1y 508788 T09 C~7d5c 2019 03 08.36231 11 54 08.97 +02 36 01.0 23.5r 508788 T09 C~80vk 2019 03 08.39383 11 54 08.83 +02 36 01.7 23.7r 508788 T09 C~80vk 2019 03 08.40641 11 54 08.79 +02 36 02.2 23.5r 508788 T09 C~80vk 2019 03 08.43604 11 54 08.68 +02 36 02.7 23.0r 508788 T09 C~80vk 2020 02 18.298260 11 59 18.940 +01 59 38.83 23.1G 508788 G37 C~3n97 2020 02 18.423380 11 59 18.520 +01 59 41.44 508788 G37 C~3n97
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 0.28 0.00 0.02
2 0.0004 0.00 -0.04 0.00 -0.07
3 0.1420 0.00 -0.34 0.00 0.36
4 0.1528 0.00 0.04 0.00 0.28
5 0.1530 0.00 0.37 0.00 0.37
6 1.0311 0.00 0.12 0.00 -0.10
7 1.0312 0.00 0.13 0.00 -0.03
8 1.0367 0.00 -0.09 0.00 0.31
9 1.0368 0.00 -0.03 0.00 0.19
10 1.1275 0.00 0.17 0.00 0.14
11 1.1279 0.00 0.39 0.00 0.15
12 1.1385 0.00 -0.50 0.00 -0.05
13 1.1388 0.00 0.01 0.00 0.02
14 2.0256 0.00 -0.98 0.00 -1.54
15 2.0257 0.00 ( -1.64) 0.00 ( -1.97)
16 4.2518 0.00 -0.37 0.00 -2.11
17 7.7622 0.00 -0.18 0.00 -0.34
18 7.7623 0.00 -0.21 0.00 -0.32
19 7.7624 0.00 -0.21 0.00 -0.40
20 7.7624 0.00 -0.24 0.00 -0.38
21 7.8208 0.00 0.60 0.00 0.12
22 7.8208 0.00 0.61 0.00 0.16
23 7.8208 0.00 0.62 0.00 0.19
24 7.9145 0.00 -0.53 0.00 -0.24
25 7.9146 0.00 -0.57 0.00 -0.25
26 7.9146 0.00 -0.53 0.00 -0.25
27 7.9147 0.00 -0.58 0.00 -0.27
28 8.0709 0.00 0.11 0.00 -0.42
29 8.0711 0.00 0.00 0.00 0.32
30 8.1258 0.00 0.39 0.00 0.54
31 8.1259 0.00 0.47 0.00 0.59
32 8.1259 0.00 0.32 0.00 0.61
33 8.1259 0.00 0.26 0.00 0.59
34 8.1260 0.00 0.34 0.00 0.56
35 8.1261 0.00 0.32 0.00 0.63
36 8.1261 0.00 0.48 0.00 0.55
37 8.1261 0.00 0.41 0.00 0.60
38 13.0979 0.00 -0.12 0.00 0.30
39 13.1005 0.00 -0.32 0.00 0.04
40 13.1008 0.00 -0.22 0.00 0.31
41 15.1234 0.00 0.24 0.00 0.35
42 15.1235 0.00 0.16 0.00 0.31
43 15.1237 0.00 0.09 0.00 0.31
44 17.3029 0.00 -0.03 0.00 -0.30
45 17.3029 0.00 -0.11 0.00 -0.15
46 17.3057 0.00 0.03 0.00 -0.08
47 17.8597 0.00 -0.00 0.00 -0.06
48 18.1112 0.00 -0.18 0.00 -0.17
49 18.1113 0.00 0.09 0.00 0.15
50 18.1114 0.00 -0.26 0.00 0.07
51 18.2122 0.00 -0.04 0.00 0.09
52 18.2123 0.00 0.01 0.00 -0.03
53 18.2125 0.00 0.07 0.00 0.06
54 18.2125 0.00 -0.10 0.00 0.02
55 19.0668 0.00 0.06 0.00 -0.62
56 19.0669 0.00 -0.11 0.00 -0.65
57 19.0671 0.00 0.05 0.00 -0.49
58 19.0828 0.00 -0.01 0.00 0.13
59 19.0829 0.00 -0.20 0.00 0.01
60 19.0829 0.00 -0.04 0.00 0.18
61 19.0830 0.00 0.12 0.00 -0.09
62 20.0327 0.00 -0.12 0.00 0.10
63 20.0330 0.00 0.04 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.
508788 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.998 45.998 45.998 ecceobj 0.116 0.116 0.116 incobj 2.695 2.695 2.695 qmin 39.968 39.948 39.952 qmax 52.678 52.653 52.707 amean 46.148 46.149 46.148 amin 45.761 45.759 45.761 amax 46.576 46.569 46.577 emean 0.118 0.118 0.118 emin 0.105 0.105 0.105 emax 0.132 0.131 0.132 imean 2.202 2.202 2.202 imin 1.749 1.750 1.750 imax 2.631 2.631 2.631 excite_mean 0.125 0.125 0.125 fracstop 1.000 1.000 1.000 cjmean 3.109 3.109 3.109 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 167.2 167.3 167.0 kozaiamp 180.0 180.0 180.0