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: 688888 # Created Sun Nov 24 02:07:49 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 97 observations of 97 # Arc: 17.88y # First observation: 2004/04/14 # Last observation: 2022/03/02 # Chi-squared of fit: 103.26 DOF: 188 RMS: 0.18 # Min/Max residuals: -0.92 0.60 # Exact a, adot, b, bdot, g, gdot: 1.838864E-05 3.093022E-02 7.761380E-06 1.150739E-02 2.708535E-02 2.465047E-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 -6.848958 116.298486 -1.000129 -0.003335 -0.028227 2453109.643396 # Heliocentric elements and errors Epoch: 2453110.5000 = 2004/04/15 Mean Anomaly: 7.46597 +/- 0.000 Argument of Peri: 321.72083 +/- 0.000 Long of Asc Node: 135.44769 +/- 0.000 Inclination: 21.65700 +/- 0.000 Eccentricity: 0.41201160 +/- 0.0000 Semi-Major Axis: 61.82109356 +/- 0.0000 Time of Perihelion: 2449428.4701 +/- 0.0 Perihelion: 36.35008578 +/- 0.0000 Aphelion: 87.29210133 +/- 0.0000 Period (y) 486.0861 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -17.15437412 +/- 0.0000 Ecliptic Y 32.44706955 +/- 0.0000 Ecliptic Z -4.40253254 +/- 0.0000 Ecliptic XDOT -0.00297710 +/- 0.0000 Ecliptic YDOT -0.00104595 +/- 0.0000 Ecliptic ZDOT 0.00112531 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.96568668 +/- 0.0000 Geocenter to KBO 36.92033020 +/- 0.0000 # Hcoef: 6.66
The following table shows the complete astrometric record for 688888. 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 (688888) followed by the observatory code and reference code for the source of the astrometry.
2004 04 14.142653 07 47 55.09 +14 09 40.1 22.4V 688888 645 C~2aHi 2004 04 14.143483 07 47 55.09 +14 09 40.1 688888 645 C~2aHi 2004 04 14.145970 07 47 55.09 +14 09 40.1 688888 645 C~2aHi 2004 04 15.140699 07 47 56.24 +14 09 55.3 22.2V 688888 645 C~2aHi 2004 04 15.141528 07 47 56.24 +14 09 55.3 688888 645 C~2aHi 2004 04 15.144016 07 47 56.24 +14 09 55.4 688888 645 C~2aHi 2004 12 12.487948 08 03 04.66 +13 45 24.2 22.6V 688888 645 C~2aHi 2004 12 12.488778 08 03 04.65 +13 45 24.2 688888 645 C~2aHi 2004 12 12.491265 08 03 04.64 +13 45 24.2 688888 645 C~2aHi 2004 12 13.348619 08 03 01.16 +13 45 34.6 22.4V 688888 645 C~2aHi 2004 12 13.349448 08 03 01.16 +13 45 34.7 22.1V 688888 645 C~2aHi 2004 12 13.351936 08 03 01.15 +13 45 34.7 23.0V 688888 645 C~2aHi 2004 12 20.424877 08 02 30.59 +13 47 10.2 22.4V 688888 645 C~2aHi 2004 12 20.425707 08 02 30.59 +13 47 10.2 688888 645 C~2aHi 2004 12 20.428194 08 02 30.58 +13 47 10.2 688888 645 C~2aHi 2011 01 27.53768 08 45 25.107 +15 32 18.38 22.4G 688888 F51 C~2rXw 2011 01 29.35973 08 45 15.538 +15 33 08.32 21.8G 688888 F51 C~2rXw 2012 01 15.56378 08 53 57.714 +15 38 21.48 22.3i 688888 F51 C~1w3t 2012 02 22.43319 08 50 45.256 +15 55 48.64 22.6w 688888 F51 C~1w3t 2013 01 10.53040 09 01 43.858 +15 46 50.14 22.7w 688888 F51 C~1w3t 2013 01 10.54427 09 01 43.765 +15 46 50.87 22.5w 688888 F51 C~1w3t 2013 01 10.55813 09 01 43.700 +15 46 50.85 22.4w 688888 F51 C~1w3t 2013 01 10.57198 09 01 43.629 +15 46 51.09 22.5w 688888 F51 C~1w3t 2013 02 03.34088 08 59 44.292 +15 57 50.71 22.2w 688888 F51 C~1w3t 2013 02 03.35550 08 59 44.211 +15 57 51.22 22.5w 688888 F51 C~1w3t 2013 02 03.37016 08 59 44.138 +15 57 51.62 22.1w 688888 F51 C~1w3t 2013 02 03.38481 08 59 44.072 +15 57 51.96 22.2w 688888 F51 C~1w3t 2013 03 03.25695 08 57 28.724 +16 10 41.76 22.2w 688888 F51 C~1w3t 2013 03 03.27126 08 57 28.646 +16 10 42.01 22.6w 688888 F51 C~1w3t 2013 03 03.28565 08 57 28.615 +16 10 42.73 22.6w 688888 F51 C~1w3t 2013 03 03.30000 08 57 28.533 +16 10 43.03 22.5w 688888 F51 C~1w3t 2013 05 30.27950 08 56 51.856 +16 24 53.75 22.1w 688888 F51 C~1w3t 2014 01 05.45942 09 09 28.624 +15 53 47.05 22.4w 688888 F51 C~1w3t 2014 01 05.47460 09 09 28.559 +15 53 47.12 22.4w 688888 F51 C~1w3t 2014 01 24.38580 09 07 59.491 +16 02 21.15 21.8w 688888 F51 C~1w3t 2014 01 24.39898 09 07 59.406 +16 02 21.74 21.7w 688888 F51 C~1w3t 2014 01 24.41219 09 07 59.355 +16 02 22.29 21.7w 688888 F51 C~1w3t 2014 11 26.56821 09 18 27.275 +15 49 32.52 22.8G 688888 F51 C~2rXw 2015 01 17.41039 09 15 52.689 +16 07 11.51 22.6G 688888 F51 C~2rXw 2015 01 17.42240 09 15 52.642 +16 07 12.12 22.8G 688888 F51 C~2rXw 2015 01 17.43442 09 15 52.598 +16 07 12.32 22.4G 688888 F51 C~2rXw 2015 01 17.44649 09 15 52.531 +16 07 12.68 22.2G 688888 F51 C~2rXw 2015 01 17.57142 09 15 51.952 +16 07 15.80 22.5G 688888 F51 C~2rXw 2015 01 17.58372 09 15 51.856 +16 07 16.59 22.7G 688888 F51 C~2rXw 2015 01 17.59608 09 15 51.806 +16 07 16.84 22.7G 688888 F51 C~2rXw 2015 01 17.60848 09 15 51.750 +16 07 17.21 22.7G 688888 F51 C~2rXw 2015 01 20.37441 09 15 38.541 +16 08 35.92 22.1G 688888 F51 C~2rXw 2015 01 20.38644 09 15 38.479 +16 08 36.18 22.1G 688888 F51 C~2rXw 2015 01 20.39849 09 15 38.428 +16 08 36.63 22.2G 688888 F51 C~2rXw 2015 01 20.41073 09 15 38.366 +16 08 37.02 22.1G 688888 F51 C~2rXw 2015 10 12.62730 09 24 09.337 +15 57 10.30 22.0G 688888 F51 C~2rXw 2015 11 08.59391 09 25 23.308 +15 54 45.48 22.0G 688888 F51 C~2rXw 2016 01 07.59304 09 23 49.452 +16 09 46.07 22.6G 688888 F51 C~2rXw 2016 01 07.60795 09 23 49.391 +16 09 46.78 22.6G 688888 F51 C~2rXw 2016 01 07.62282 09 23 49.305 +16 09 46.72 22.2G 688888 F51 C~2rXw 2016 01 07.63784 09 23 49.244 +16 09 47.15 22.2G 688888 F51 C~2rXw 2016 01 18.44622 09 23 01.788 +16 14 47.53 22.8G 688888 F51 C~2rXw 2016 01 31.36311 09 21 59.109 +16 21 09.13 23.0G 688888 F51 C~2rXw 2016 02 02.38792 09 21 48.925 +16 22 10.29 22.8G 688888 F51 C~2rXw 2016 02 02.39953 09 21 48.875 +16 22 10.47 22.3G 688888 F51 C~2rXw 2016 02 02.41116 09 21 48.812 +16 22 10.93 22.1G 688888 F51 C~2rXw 2016 02 03.40402 09 21 43.809 +16 22 40.76 22.7G 688888 F51 C~2rXw 2016 03 03.29925 09 19 22.594 +16 36 34.33 22.6G 688888 F51 C~2rXw 2016 03 03.31244 09 19 22.554 +16 36 34.72 23.0G 688888 F51 C~2rXw 2016 03 03.32569 09 19 22.532 +16 36 34.70 22.5G 688888 F51 C~2rXw 2016 12 23.61184 09 31 45.166 +16 10 02.97 22.3G 688888 F51 C~2rXw 2016 12 23.62440 09 31 45.137 +16 10 02.92 22.7G 688888 F51 C~2rXw 2016 12 23.63702 09 31 45.104 +16 10 03.29 22.2G 688888 F51 C~2rXw 2016 12 23.64970 09 31 45.066 +16 10 03.41 22.7G 688888 F51 C~2rXw 2017 01 21.65334 09 29 51.220 +16 22 58.89 22.7G 688888 F51 C~2rXw 2017 01 24.42677 09 29 38.087 +16 24 21.98 22.6G 688888 F51 C~2rXw 2017 01 24.64761 09 29 37.040 +16 24 28.68 23.6G 688888 F51 C~2rXw 2017 01 28.38202 09 29 18.916 +16 26 21.79 22.1G 688888 F51 C~2rXw 2017 01 28.39435 09 29 18.849 +16 26 22.26 22.4G 688888 F51 C~2rXw 2017 01 28.40655 09 29 18.798 +16 26 22.72 22.5G 688888 F51 C~2rXw 2017 01 28.41872 09 29 18.740 +16 26 23.09 22.3G 688888 F51 C~2rXw 2017 02 05.63045 09 28 37.932 +16 30 33.70 22.2G 688888 F51 C~2rXw 2017 02 18.48759 09 27 33.746 +16 37 00.32 22.6G 688888 F51 C~2rXw 2017 02 22.35934 09 27 14.844 +16 38 53.27 22.2G 688888 F51 C~2rXw 2017 03 17.24305 09 25 35.063 +16 48 45.85 22.5G 688888 F51 C~2rXw 2017 05 22.25564 09 24 38.208 +16 57 36.14 22.3G 688888 F51 C~2rXw 2017 11 20.57474 09 39 23.981 +16 06 38.52 22.6G 688888 F51 C~2rXw 2018 01 14.56074 09 37 26.510 +16 24 41.18 22.5G 688888 F51 C~2rXw 2018 01 14.57304 09 37 26.455 +16 24 41.39 22.2G 688888 F51 C~2rXw 2018 01 14.58539 09 37 26.387 +16 24 41.68 22.2G 688888 F51 C~2rXw 2018 02 12.35834 09 35 09.611 +16 39 19.88 22.5G 688888 F51 C~2rXw 2018 02 12.37163 09 35 09.540 +16 39 20.27 22.4G 688888 F51 C~2rXw 2018 02 12.38497 09 35 09.463 +16 39 20.67 22.8G 688888 F51 C~2rXw 2018 02 12.39864 09 35 09.408 +16 39 21.32 22.2G 688888 F51 C~2rXw 2018 03 08.27500 09 33 15.966 +16 50 43.81 23.3G 688888 F51 C~2rXw 2018 03 08.28818 09 33 15.928 +16 50 44.17 22.6G 688888 F51 C~2rXw 2018 03 08.30134 09 33 15.871 +16 50 44.57 22.3G 688888 F51 C~2rXw 2018 03 08.31470 09 33 15.820 +16 50 44.73 22.8G 688888 F51 C~2rXw 2018 03 18.26727 09 32 35.254 +16 54 45.12 23.1G 688888 F51 C~2rXw 2022 03 02.232600 10 01 05.011 +17 01 36.17 22.7G 688888 G37 C~5Rxv 2022 03 02.289330 10 01 04.733 +17 01 37.21 688888 G37 C~5Rxv 2022 03 02.343290 10 01 04.488 +17 01 39.10 688888 G37 C~5Rxv
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 -0.11 0.00 -0.20
2 0.0000 0.00 -0.12 0.00 -0.21
3 0.0000 0.00 -0.16 0.00 -0.25
4 0.0027 0.00 -0.02 0.00 -0.09
5 0.0027 0.00 -0.04 0.00 -0.11
6 0.0027 0.00 -0.08 0.00 -0.04
7 0.6635 0.00 0.29 0.00 -0.06
8 0.6635 0.00 0.19 0.00 -0.07
9 0.6635 0.00 0.19 0.00 -0.10
10 0.6659 0.00 -0.15 0.00 -0.02
11 0.6659 0.00 -0.09 0.00 0.07
12 0.6659 0.00 -0.09 0.00 0.04
13 0.6852 0.00 0.00 0.00 0.12
14 0.6852 0.00 0.06 0.00 0.10
15 0.6852 0.00 0.08 0.00 0.07
16 6.7882 0.00 0.28 0.00 0.02
17 6.7932 0.00 0.11 0.00 0.00
18 7.7547 0.00 -0.05 0.00 0.31
19 7.8584 0.00 -0.02 0.00 0.04
20 8.7430 0.00 0.32 0.00 0.02
21 8.7431 0.00 -0.08 0.00 0.39
22 8.7431 0.00 -0.07 0.00 0.02
23 8.7431 0.00 -0.14 0.00 -0.10
24 8.8082 0.00 0.05 0.00 0.08
25 8.8082 0.00 -0.01 0.00 0.17
26 8.8083 0.00 0.05 0.00 0.15
27 8.8083 0.00 0.22 0.00 0.06
28 8.8846 0.00 0.02 0.00 0.13
29 8.8847 0.00 -0.21 0.00 0.01
30 8.8847 0.00 0.27 0.00 0.36
31 8.8848 0.00 -0.02 0.00 0.30
32 9.1256 0.00 0.32 0.00 -0.34
33 9.7285 0.00 0.09 0.00 0.20
34 9.7285 0.00 0.11 0.00 -0.11
35 9.7803 0.00 0.06 0.00 -0.18
36 9.7803 0.00 -0.20 0.00 0.03
37 9.7803 0.00 0.05 0.00 0.20
38 10.6186 0.00 -0.03 0.00 0.15
39 10.7605 0.00 -0.25 0.00 -0.12
40 10.7605 0.00 -0.09 0.00 0.15
41 10.7606 0.00 0.12 0.00 0.00
42 10.7606 0.00 -0.02 0.00 0.02
43 10.7609 0.00 0.33 0.00 -0.38
44 10.7610 0.00 -0.22 0.00 0.07
45 10.7610 0.00 -0.08 0.00 -0.03
46 10.7610 0.00 -0.03 0.00 -0.01
47 10.7686 0.00 -0.04 0.00 -0.01
48 10.7686 0.00 -0.09 0.00 -0.10
49 10.7687 0.00 0.03 0.00 0.00
50 10.7687 0.00 0.01 0.00 0.04
51 11.4948 0.00 -0.09 0.00 -0.41
52 11.5687 0.00 -0.92 0.00 -0.27
53 11.7329 0.00 0.01 0.00 0.02
54 11.7330 0.00 0.03 0.00 0.33
55 11.7330 0.00 -0.33 0.00 -0.12
56 11.7330 0.00 -0.30 0.00 -0.08
57 11.7626 0.00 0.14 0.00 0.06
58 11.7980 0.00 0.13 0.00 -0.05
59 11.8035 0.00 -0.13 0.00 0.20
60 11.8036 0.00 0.01 0.00 0.03
61 11.8036 0.00 -0.04 0.00 0.14
62 11.8063 0.00 -0.05 0.00 0.08
63 11.8854 0.00 -0.78 0.00 0.21
64 11.8855 0.00 -0.48 0.00 0.25
65 11.8855 0.00 0.09 0.00 -0.12
66 12.6940 0.00 -0.24 0.00 0.30
67 12.6940 0.00 -0.10 0.00 -0.03
68 12.6940 0.00 -0.03 0.00 0.06
69 12.6941 0.00 -0.03 0.00 -0.11
70 12.7735 0.00 0.07 0.00 -0.11
71 12.7811 0.00 0.15 0.00 -0.17
72 12.7817 0.00 0.60 0.00 -0.10
73 12.7919 0.00 0.01 0.00 -0.12
74 12.7919 0.00 -0.08 0.00 -0.03
75 12.7920 0.00 0.07 0.00 0.06
76 12.7920 0.00 0.11 0.00 0.06
77 12.8145 0.00 -0.04 0.00 0.01
78 12.8497 0.00 0.20 0.00 -0.16
79 12.8603 0.00 0.03 0.00 0.21
80 12.9229 0.00 -0.08 0.00 0.04
81 13.1037 0.00 0.14 0.00 0.11
82 13.6028 0.00 0.12 0.00 -0.14
83 13.7534 0.00 0.11 0.00 0.04
84 13.7534 0.00 0.08 0.00 -0.11
85 13.7534 0.00 -0.13 0.00 -0.18
86 13.8322 0.00 0.11 0.00 -0.10
87 13.8322 0.00 0.05 0.00 -0.11
88 13.8323 0.00 -0.09 0.00 -0.12
89 13.8323 0.00 0.12 0.00 0.11
90 13.8977 0.00 -0.18 0.00 0.01
91 13.8977 0.00 0.13 0.00 0.03
92 13.8978 0.00 0.14 0.00 0.08
93 13.8978 0.00 0.27 0.00 -0.10
94 13.9251 0.00 -0.20 0.00 0.10
95 17.8811 0.00 0.12 0.00 0.10
96 17.8813 0.00 -0.01 0.00 -0.51
97 17.8815 0.00 0.15 0.00 -0.17
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.
688888 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 61.671 61.671 61.671 ecceobj 0.411 0.411 0.411 incobj 21.705 21.705 21.705 qmin 35.330 35.131 35.130 qmax 88.438 88.855 88.610 amean 61.231 61.304 61.234 amin 60.508 60.524 60.438 amax 62.206 62.291 62.290 emean 0.407 0.408 0.408 emin 0.391 0.390 0.391 emax 0.422 0.426 0.425 imean 20.337 20.292 20.264 imin 19.790 19.524 19.581 imax 21.025 21.180 21.072 excite_mean 0.535 0.535 0.535 fracstop 1.000 1.000 1.000 cjmean 2.935 2.936 2.936 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 160.6 161.9 161.2 kozaiamp 180.0 180.0 180.0