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: 15810
# Created Fri Nov 22 02:06:41 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 80 observations of 104
# Arc: 21.91y
# First observation: 1994/05/12
# Last observation: 2016/04/08
# Chi-squared of fit: 535.99 DOF: 154 RMS: 0.46
# Min/Max residuals: -1.13 1.47
# Exact a, adot, b, bdot, g, gdot:
1.727858E-05 3.336479E-02 -1.995233E-06 -3.542622E-04 2.960531E-02 1.520140E-05
# 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
3.867091 -116.035606 0.225584 0.066035 -0.976794 2449484.581257
# Heliocentric elements and errors
Epoch: 2449484.5000 = 1994/05/12
Mean Anomaly: 357.71347 +/- 0.000
Argument of Peri: 101.81001 +/- 0.000
Long of Asc Node: 144.71964 +/- 0.000
Inclination: 3.80283 +/- 0.000
Eccentricity: 0.12336938 +/- 0.0000
Semi-Major Axis: 39.64782279 +/- 0.0000
Time of Perihelion: 2450063.6650 +/- 0.0
Perihelion: 34.75649552 +/- 0.0000
Aphelion: 44.53915005 +/- 0.0000
Period (y) 249.6532 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -15.42465222 +/- 0.0000
Ecliptic Y -31.06858462 +/- 0.0000
Ecliptic Z 2.27800083 +/- 0.0000
Ecliptic XDOT 0.00277630 +/- 0.0000
Ecliptic YDOT -0.00136118 +/- 0.0000
Ecliptic ZDOT -0.00003273 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 34.76156456 +/- 0.0000
Geocenter to KBO 33.77774628 +/- 0.0000
# Hcoef: 5.09
The following table shows the complete astrometric record for 15810. 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 (15810) followed by the observatory code and reference code for the source of the astrometry.
1994 05 12.08056 16 10 53.63 -17 08 26.8 22.5R 15810 950 A23646 1994 05 15.04028 16 10 36.89 -17 07 38.1 22.8V 15810 950 A23646 1994 05 16.06528 16 10 30.96 -17 07 21.6 15810 950 A23646 1994 05 17.08472 16 10 25.13 -17 07 04.9 15810 950 A23646 1994 06 05.06875 16 08 35.29 -17 02 15.2 15810 950 23646 1994 06 07.3699 16 08 22.33 -17 01 43.0 15810 568 A23582 1994 06 07.4199 16 08 22.05 -17 01 42.4 15810 568 A23583 1994 06 07.4768 16 08 21.73 -17 01 41.6 15810 568 A23583 1994 06 07.5313 16 08 21.42 -17 01 40.8 15810 568 A23583 1995 02 01.23176 16 20 56.17 -17 44 07.7 15810 950 C24881 1995 02 01.28837 16 20 56.42 -17 44 08.1 15810 950 C24881 1995 02 02.23795 16 21 00.44 -17 44 12.4 15810 950 C24881 1995 03 29.71221 16 21 51.41 -17 40 24.8 15810 413 C25264 1995 03 29.76829 16 21 51.27 -17 40 24.2 15810 413 C25264 1995 03 30.73788 16 21 48.95 -17 40 12.7 15810 413 C25264 1995 03 30.76010 16 21 48.90 -17 40 12.5 15810 413 C25264 1995 04 01.2084 16 21 45.19 -17 39 56.5 15810 950 C25182 1995 04 01.2458 16 21 45.12 -17 39 56.2 22.7R 15810 950 C25029 1997 04 07.18209 16 37 09.18 -18 17 04.4 15810 950 C30242 1997 04 07.21675 16 37 09.07 -18 17 04.0 15810 950 C30242 1997 05 28.54142 16 33 02.00 -18 06 04.8 15810 568 C29991 1997 05 28.58255 16 33 01.75 -18 06 04.6 15810 568 C29991 1997 05 30.34590 16 32 51.43 -18 05 42.6 22.6R 15810 696 C30018 1997 05 30.39380 16 32 51.08 -18 05 42.7 15810 696 C30019 1997 05 30.41681 16 32 50.95 -18 05 41.9 15810 696 C30019 1997 06 11.33266 16 31 41.32 -18 03 22.5 22.6R 15810 688 C30003 1997 06 11.34510 16 31 41.24 -18 03 22.7 23.0R 15810 688 C30003 1997 06 11.35692 16 31 41.22 -18 03 22.7 23.9R 15810 688 C30003 1997 06 11.36766 16 31 41.13 -18 03 22.6 22.5R 15810 688 C30003 1997 06 11.37833 16 31 41.01 -18 03 22.0 22.8R 15810 688 C30003 1997 06 11.39075 16 31 40.98 -18 03 22.5 22.1R 15810 688 C30003 1998 05 03.36892 16 43 20.00 -18 29 28.4 15810 696 Ca1216 1998 05 03.44002 16 43 19.63 -18 29 27.4 15810 696 Ca1216 1998 05 24.03333 16 41 27.36 -18 25 14.2 15810 950 Ca1682 1998 05 24.07462 16 41 27.28 -18 25 13.6 15810 950 Ca1682 1998 05 25.07339 16 41 21.30 -18 25 01.8 15810 950 Ca1682 1998 05 25.10528 16 41 21.10 -18 25 01.4 15810 950 Ca1682 1999 04 12.57230 16 52 41.15 -18 49 44.8 23.3R 15810 568 Ca4450 1999 04 12.61161 16 52 41.02 -18 49 44.3 23.3R 15810 568 Ca4450 1999 05 24.31837 16 49 25.50 -18 42 05.1 22.0R 15810 697 Cb0711 1999 05 24.35749 16 49 25.26 -18 42 04.9 22.1R 15810 697 Cb0711 2000 06 24.99207 16 54 15.23 -18 53 06.7 15810 950 Cb6356 2000 06 25.02533 16 54 15.04 -18 53 06.3 15810 950 Cb6356 2001 07 28.10938 16 59 40.89 -19 06 21.0 22.4R 15810 250 S~1WuS 2001 07 28.11328 16 59 40.88 -19 06 21.0 15810 250 S~1WuS 2001 07 28.11523 16 59 40.87 -19 06 21.0 15810 250 S~1WuS 2001 07 28.11914 16 59 40.85 -19 06 21.0 15810 250 S~1WuS 2001 07 28.12109 16 59 40.84 -19 06 21.0 15810 250 S~1WuS 2001 07 28.12500 16 59 40.83 -19 06 21.0 15810 250 S~1WuS 2002 10 03.24805 17 07 44.83 -19 27 16.7 23.2R 15810 250 S~1WuS 2002 10 03.25195 17 07 44.84 -19 27 16.7 15810 250 S~1WuS 2002 10 03.25781 17 07 44.87 -19 27 16.8 15810 250 S~1WuS 2002 10 03.26367 17 07 44.89 -19 27 16.9 15810 250 S~1WuS 2015 06 12.555267 18 55 14.192 -20 10 59.55 22.0R 15810 568 C~1T6l 2015 06 12.580509 18 55 14.052 -20 10 59.65 22.1R 15810 568 C~1T6l 2015 11 02.03183 17 14 29.448 -09 21 29.45 17.8V 15810 C54 S~1tcJ 2015 11 02.07350 17 14 28.926 -09 21 21.60 17.9V 15810 C54 S~1tcJ 2015 11 02.11516 17 14 28.344 -09 21 14.09 17.8V 15810 C54 S~1tcJ 2015 11 02.15683 17 14 27.796 -09 21 06.93 18.1V 15810 C54 S~1tcJ 2015 11 02.22765 18 49 36.57 -20 26 22.0 22.8R 15810 250 S~1uGH 2015 11 02.23354 18 49 36.60 -20 26 22.8 15810 250 S~1uGH 2015 11 02.23982 18 49 36.62 -20 26 21.6 15810 250 S~1uGH 2015 11 02.24600 18 49 36.65 -20 26 22.4 15810 250 S~1uGH 2015 11 02.25218 18 49 36.68 -20 26 23.1 15810 250 S~1uGH 2016 04 07.79283 15 41 03.767 +12 12 24.34 17.0V 15810 C54 S~1tcJ 2016 04 07.81366 15 41 01.882 +12 12 49.07 17.2V 15810 C54 S~1tcJ 2016 04 07.85434 15 40 58.214 +12 13 37.42 16.8V 15810 C54 S~1tcJ 2016 04 07.87518 15 40 56.308 +12 14 02.53 16.8V 15810 C54 S~1tcJ 2016 04 07.89601 15 40 54.417 +12 14 27.18 16.9V 15810 C54 S~1tcJ 2016 04 07.91684 15 40 52.530 +12 14 51.90 17.3V 15810 C54 S~1tcJ 2016 04 07.93768 15 40 50.650 +12 15 16.65 17.4V 15810 C54 S~1tcJ 2016 04 07.95851 15 40 48.730 +12 15 41.12 16.9V 15810 C54 S~1tcJ 2016 04 07.97934 15 40 46.868 +12 16 06.36 16.7V 15810 C54 S~1tcJ 2016 04 08.00018 15 40 44.950 +12 16 31.27 16.9V 15810 C54 S~1tcJ 2016 04 08.02101 15 40 43.092 +12 16 55.91 16.7V 15810 C54 S~1tcJ 2016 04 08.06268 15 40 39.290 +12 17 45.68 17.1V 15810 C54 S~1tcJ 2016 04 08.10434 15 40 35.484 +12 18 35.80 16.9V 15810 C54 S~1tcJ 2016 04 08.14601 15 40 31.717 +12 19 25.59 17.2V 15810 C54 S~1tcJ 2016 04 08.18768 15 40 27.869 +12 20 15.14 17.0V 15810 C54 S~1tcJ 2016 04 08.22934 15 40 24.096 +12 21 05.34 16.9V 15810 C54 S~1tcJ 2016 04 08.27101 15 40 20.273 +12 21 55.23 17.2V 15810 C54 S~1tcJ 2016 04 08.31268 15 40 16.496 +12 22 45.17 16.6V 15810 C54 S~1tcJ 2016 04 08.35434 15 40 12.661 +12 23 34.94 17.0V 15810 C54 S~1tcJ 2016 04 08.39601 15 40 08.828 +12 24 25.22 17.4V 15810 C54 S~1tcJ 2017 06 21.520382 19 09 55.247 -19 59 48.99 23.5G 15810 F51 C~41Ga 2017 07 25.414274 19 06 40.796 -20 05 44.03 23.8G 15810 F51 C~41Ga 2017 08 12.300240 19 05 09.914 -20 08 59.56 22.7G 15810 F51 C~41Ga 2018 05 21.589386 19 20 00.500 -19 47 58.01 23.5G 15810 F51 C~41Ga 2018 06 06.494605 19 18 56.241 -19 49 33.86 22.7G 15810 F51 C~41Ga 2018 06 21.505494 19 17 39.965 -19 51 45.66 23.1G 15810 F51 C~41Ga 2018 08 05.313432 19 13 28.149 -20 00 21.19 23.3G 15810 F51 C~41Ga 2019 06 12.527106 19 26 07.811 -19 41 00.60 21.7G 15810 F51 C~41Ga 2019 06 12.544793 19 26 07.739 -19 41 00.02 22.5G 15810 F51 C~41Ga 2019 08 24.297762 19 19 43.518 -19 55 33.44 23.1G 15810 F51 C~41Ga 2019 08 24.318280 19 19 43.423 -19 55 33.89 22.4G 15810 F51 C~41Ga 2019 08 24.328526 19 19 43.402 -19 55 33.80 22.9G 15810 F51 C~41Ga 2020 05 24.549395 19 34 58.620 -19 28 06.41 22.8G 15810 F51 C~41Ga 2020 06 16.451651 19 33 21.624 -19 31 17.25 23.7G 15810 F51 C~41Ga 2021 07 09.305140 19 38 53.972 -19 24 31.90 23.0G 15810 G37 C~4vIC 2021 07 09.351900 19 38 53.732 -19 24 32.80 15810 G37 C~4vIC 2021 07 09.397990 19 38 53.451 -19 24 33.49 15810 G37 C~4vIC 2023 08 14.211750 19 50 39.533 -19 08 12.37 22.2G 15810 G37 C~789z 2023 08 14.259810 19 50 39.267 -19 08 12.96 15810 G37 C~789z 2023 08 14.307830 19 50 39.043 -19 08 14.12 15810 G37 C~789z
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 0.19 0.00 0.35
2 0.0081 0.00 0.51 0.00 0.54
3 0.0109 0.00 -0.57 0.00 0.34
4 0.0137 0.00 -0.33 0.00 0.48
5 0.0657 0.00 -0.26 0.00 -0.16
6 0.0720 0.00 1.21 0.00 0.17
7 0.0721 0.00 1.33 0.00 0.08
8 0.0723 0.00 1.43 0.00 0.10
9 0.0724 0.00 1.47 0.00 0.14
10 0.7259 0.00 -0.00 0.00 0.38
11 0.7261 0.00 0.16 0.00 0.25
12 0.7287 0.00 -0.01 0.00 0.12
13 0.8806 0.00 0.03 0.00 -0.32
14 0.8807 0.00 -0.01 0.00 -0.36
15 0.8834 0.00 0.05 0.00 0.04
16 0.8834 0.00 0.15 0.00 -0.01
17 0.8874 0.00 -0.52 0.00 -0.70
18 0.8875 0.00 -0.05 0.00 -0.84
19 2.9051 0.00 -0.23 0.00 -0.25
20 2.9052 0.00 -0.31 0.00 -0.24
21 3.0458 0.00 -0.35 0.00 0.01
22 3.0459 0.00 -0.43 0.00 -0.32
23 3.0507 0.00 0.24 0.00 -0.17
24 3.0508 0.00 -0.72 0.00 -0.87
25 3.0509 0.00 -0.61 0.00 -0.36
26 3.0835 0.00 -0.29 0.00 0.65
27 3.0835 0.00 -0.40 0.00 0.31
28 3.0836 0.00 0.33 0.00 0.18
29 3.0836 0.00 -0.08 0.00 0.16
30 3.0836 0.00 -0.95 0.00 0.65
31 3.0837 0.00 -0.31 0.00 0.01
32 3.9761 0.00 -0.83 0.00 -0.58
33 3.9763 0.00 -1.00 0.00 -0.46
34 4.0327 0.00 -1.03 0.00 -0.25
35 4.0328 0.00 1.43 0.00 -0.14
36 4.0356 0.00 -0.97 0.00 -0.23
37 4.0357 0.00 -1.13 0.00 -0.21
38 4.9185 0.00 -0.19 0.00 -0.08
39 4.9186 0.00 -0.28 0.00 0.03
40 5.0328 0.00 0.22 0.00 -0.01
41 5.0329 0.00 0.08 0.00 -0.23
42 6.1216 0.00 0.15 0.00 -0.14
43 6.1217 0.00 0.11 0.00 0.05
44 7.2116 0.00 -0.21 0.00 0.43
45 7.2116 0.00 -0.16 0.00 0.43
46 7.2116 0.00 -0.22 0.00 0.43
47 7.2116 0.00 -0.32 0.00 0.43
48 7.2116 0.00 -0.37 0.00 0.43
49 7.2116 0.00 -0.32 0.00 0.43
50 8.3947 0.00 0.91 0.00 -0.52
51 8.3947 0.00 0.82 0.00 -0.48
52 8.3947 0.00 0.92 0.00 -0.51
53 8.3948 0.00 0.87 0.00 -0.55
54 21.0855 0.00 -0.03 0.00 0.06
55 21.0856 0.00 -0.06 0.00 0.12
56 21.4756 0.00 (*******) 0.00 (*******)
57 21.4757 0.00 (*******) 0.00 (*******)
58 21.4758 0.00 (*******) 0.00 (*******)
59 21.4759 0.00 (*******) 0.00 (*******)
60 21.4761 0.00 -0.19 0.00 0.40
61 21.4761 0.00 -0.15 0.00 -0.40
62 21.4761 0.00 -0.28 0.00 0.79
63 21.4762 0.00 -0.26 0.00 -0.01
64 21.4762 0.00 -0.24 0.00 -0.72
65 21.9075 0.00 (*******) 0.00 (*******)
66 21.9076 0.00 (*******) 0.00 (*******)
67 21.9077 0.00 (*******) 0.00 (*******)
68 21.9077 0.00 (*******) 0.00 (*******)
69 21.9078 0.00 (*******) 0.00 (*******)
70 21.9078 0.00 (*******) 0.00 (*******)
71 21.9079 0.00 (*******) 0.00 (*******)
72 21.9079 0.00 (*******) 0.00 (*******)
73 21.9080 0.00 (*******) 0.00 (*******)
74 21.9081 0.00 (*******) 0.00 (*******)
75 21.9081 0.00 (*******) 0.00 (*******)
76 21.9082 0.00 (*******) 0.00 (*******)
77 21.9083 0.00 (*******) 0.00 (*******)
78 21.9085 0.00 (*******) 0.00 (*******)
79 21.9086 0.00 (*******) 0.00 (*******)
80 21.9087 0.00 (*******) 0.00 (*******)
81 21.9088 0.00 (*******) 0.00 (*******)
82 21.9089 0.00 (*******) 0.00 (*******)
83 21.9090 0.00 (*******) 0.00 (*******)
84 21.9091 0.00 (*******) 0.00 (*******)
85 23.1114 0.00 -0.07 0.00 -0.09
86 23.2042 0.00 -0.10 0.00 -0.12
87 23.2532 0.00 -0.26 0.00 0.07
88 24.0260 0.00 0.06 0.00 0.06
89 24.0696 0.00 -0.20 0.00 -0.04
90 24.1107 0.00 0.03 0.00 0.10
91 24.2334 0.00 -0.02 0.00 0.42
92 25.0854 0.00 -0.45 0.00 -0.29
93 25.0855 0.00 -0.21 0.00 0.45
94 25.2846 0.00 -0.15 0.00 0.07
95 25.2847 0.00 -0.34 0.00 -0.15
96 25.2847 0.00 -0.04 0.00 0.05
97 26.0355 0.00 -0.22 0.00 0.08
98 26.0982 0.00 -0.17 0.00 -0.25
99 27.1601 0.00 -0.55 0.00 0.04
100 27.1602 0.00 -0.10 0.00 -0.19
101 27.1603 0.00 -0.31 0.00 -0.23
102 29.2570 0.00 -0.21 0.00 -0.08
103 29.2572 0.00 -0.53 0.00 0.09
104 29.2573 0.00 -0.23 0.00 -0.32
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.
15810 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.174 39.174 39.174 ecceobj 0.113 0.113 0.113 incobj 3.802 3.802 3.802 qmin 33.804 33.804 33.804 qmax 45.729 45.729 45.731 amean 39.459 39.459 39.459 amin 39.014 39.014 39.014 amax 39.963 39.962 39.963 emean 0.125 0.125 0.125 emin 0.105 0.105 0.105 emax 0.145 0.145 0.145 imean 3.429 3.429 3.429 imin 2.545 2.545 2.545 imax 4.276 4.276 4.276 excite_mean 0.139 0.139 0.139 fracstop 1.000 1.000 1.000 cjmean 3.030 3.030 3.030 libcent 0 180.8 180.8 180.7 libamp 0 96.8 96.8 96.9 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 182.9 182.9 182.9 kozaiamp 180.0 180.0 179.9