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: 523955
# Created Sun Dec 22 02:07:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 68 observations of 69
# Arc: 25.08y
# First observation: 1998/10/22
# Last observation: 2023/11/19
# Chi-squared of fit: 267.52 DOF: 130 RMS: 0.35
# Min/Max residuals: -1.57 1.81
# Exact a, adot, b, bdot, g, gdot:
1.916763E-05 2.675977E-02 -2.471998E-06 -4.377913E-03 2.718726E-02 -3.291536E-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
2.386895 37.612680 0.147336 0.040475 -0.976508 2451108.850761
# Heliocentric elements and errors
Epoch: 2451108.5000 = 1998/10/22
Mean Anomaly: 263.29209 +/- 0.000
Argument of Peri: 276.46579 +/- 0.000
Long of Asc Node: 231.33064 +/- 0.000
Inclination: 9.55863 +/- 0.000
Eccentricity: 0.12558165 +/- 0.0000
Semi-Major Axis: 36.67428112 +/- 0.0000
Time of Perihelion: 2472900.6634 +/- 0.0
Perihelion: 32.06866450 +/- 0.0000
Aphelion: 41.27989775 +/- 0.0000
Period (y) 222.1011 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 29.98379902 +/- 0.0000
Ecliptic Y 22.90869263 +/- 0.0000
Ecliptic Z 1.53177945 +/- 0.0000
Ecliptic XDOT -0.00189276 +/- 0.0000
Ecliptic YDOT 0.00195287 +/- 0.0000
Ecliptic ZDOT -0.00045433 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.76490609 +/- 0.0000
Geocenter to KBO 36.78204127 +/- 0.0000
# Hcoef: 7.18
The following table shows the complete astrometric record for 523955. 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 (523955) followed by the observatory code and reference code for the source of the astrometry.
1998 10 22.35003 02 17 47.55 +16 18 22.5 523955 695 Ca3601 1998 10 22.48311 02 17 46.87 +16 18 18.5 523955 695 Ca3601 1998 11 18.07069 02 15 27.92 +16 05 19.9 21.5R 523955 695 Ch1090 1998 11 18.14591 02 15 27.54 +16 05 17.6 523955 695 Ch1090 1998 11 18.23096 02 15 27.03 +16 05 15.2 523955 695 Ch1090 1998 12 14.83617 02 13 35.14 +15 53 37.6 22.7R 523955 950 Ca3601 1998 12 14.85345 02 13 35.07 +15 53 37.3 523955 950 Ca3601 1999 11 10.16227 02 22 34.50 +16 25 15.5 22.5R 523955 695 Ca7321 1999 11 10.18814 02 22 34.40 +16 25 14.7 523955 695 Ca7321 1999 11 10.24322 02 22 34.07 +16 25 12.9 523955 695 Ca7321 1999 11 10.31381 02 22 33.61 +16 25 10.7 523955 696 Ca7321 1999 11 10.37010 02 22 33.30 +16 25 09.0 22.7R 523955 696 Ca7321 1999 11 10.41551 02 22 33.04 +16 25 07.8 523955 696 Ca7321 1999 11 11.24109 02 22 28.74 +16 24 43.8 523955 696 Ca7321 1999 11 11.28637 02 22 28.51 +16 24 42.8 523955 696 Ca7321 1999 11 11.33656 02 22 28.17 +16 24 41.3 523955 696 Ca7321 2000 11 23.18416 02 27 52.14 +16 34 03.5 22.3R 523955 695 Cc2188 2000 11 23.36171 02 27 51.25 +16 33 58.8 523955 695 Cc2188 2003 09 28.41448 02 52 24.32 +17 39 25.9 22.4R 523955 688 Ci6006 2003 09 28.47791 02 52 24.04 +17 39 25.9 523955 688 Ci6006 2006 12 24.25190 03 05 25.31 +17 39 56.4 23.1R 523955 688 Ct1736 2006 12 24.32942 03 05 24.84 +17 39 56.4 523955 688 Ct1736 2008 10 24.48081 03 24 27.77 +18 22 25.9 23.5r 523955 695 C~0hkJ 2008 12 21.26140 03 19 18.34 +18 00 34.0 21.3r 523955 695 C~0hkJ 2008 12 21.33897 03 19 18.02 +18 00 32.5 20.6r 523955 695 C~0hkJ 2008 12 22.31325 03 19 13.88 +18 00 14.4 21.8r 523955 695 C~0hkJ 2010 11 08.48693 03 37 16.618 +18 32 28.27 22.9G 523955 F51 C~2r77 2010 11 08.49966 03 37 16.537 +18 32 27.99 23.1G 523955 F51 C~2r77 2010 11 08.51385 03 37 16.464 +18 32 27.65 22.5G 523955 F51 C~2r77 2010 11 08.52652 03 37 16.386 +18 32 27.25 22.6G 523955 F51 C~2r77 2011 11 30.30645 03 42 22.234 +18 31 06.26 523955 F51 C~2r77 2011 12 01.50122 03 42 15.409 +18 30 40.70 23.3G 523955 F51 C~2r77 2012 03 14.24180 03 39 39.802 +18 20 01.93 22.6G 523955 F51 C~2r77 2012 11 07.38915 03 51 45.067 +18 44 35.67 22.7G 523955 F51 C~2r77 2012 12 10.31158 03 48 35.162 +18 33 16.02 23.2G 523955 F51 C~2r77 2012 12 10.32708 03 48 35.089 +18 33 16.00 22.7G 523955 F51 C~2r77 2013 11 09.52980 03 58 52.466 +18 48 24.27 22.6G 523955 F51 C~2r77 2015 01 11.37618 04 00 41.387 +18 34 18.81 22.4G 523955 F51 C~2r77 2015 01 22.35107 04 00 08.541 +18 32 45.52 22.6G 523955 F51 C~2r77 2015 01 24.33416 04 00 03.952 +18 32 33.07 22.9G 523955 F51 C~2r77 2015 08 21.61236 04 16 41.771 +19 09 39.19 23.0G 523955 F51 C~2r77 2015 09 19.55083 04 16 53.054 +19 06 59.84 23.1G 523955 F51 C~2r77 2015 12 06.46539 04 11 02.558 +18 45 58.42 22.8G 523955 F51 C~2r77 2015 12 07.46552 04 10 56.638 +18 45 40.90 21.7G 523955 F51 C~2r77 2015 12 07.47677 04 10 56.561 +18 45 40.74 23.1G 523955 F51 C~2r77 2015 12 07.48799 04 10 56.498 +18 45 40.57 22.5G 523955 F51 C~2r77 2015 12 07.49920 04 10 56.423 +18 45 40.44 21.9G 523955 F51 C~2r77 2015 12 09.45104 04 10 45.008 +18 45 06.23 22.3G 523955 F51 C~2r77 2015 12 09.46381 04 10 44.932 +18 45 06.22 22.7G 523955 F51 C~2r77 2015 12 09.47652 04 10 44.854 +18 45 05.89 21.7G 523955 F51 C~2r77 2015 12 09.48918 04 10 44.782 +18 45 05.73 22.7G 523955 F51 C~2r77 2016 01 07.25770 04 08 17.582 +18 38 06.47 23.1G 523955 F51 C~2r77 2016 11 26.54480 04 19 24.996 +18 50 10.23 22.3G 523955 F51 C~2r77 2017 10 30.56647 04 29 29.628 +18 58 08.01 22.7G 523955 F51 C~2r77 2017 10 30.57850 04 29 29.577 +18 58 07.75 22.8G 523955 F51 C~2r77 2017 10 30.57919 04 29 29.567 +18 58 07.69 22.6G 523955 F51 C~2r77 2017 10 30.59114 04 29 29.486 +18 58 07.32 22.4G 523955 F51 C~2r77 2017 10 30.59183 04 29 29.504 +18 58 07.52 23.0G 523955 F51 C~2r77 2017 10 30.60376 04 29 29.460 +18 58 07.29 22.5G 523955 F51 C~2r77 2017 10 30.60444 04 29 29.422 +18 58 07.15 22.5G 523955 F51 C~2r77 2017 12 22.47010 04 24 24.325 +18 43 50.29 22.5G 523955 F51 C~2r77 2018 01 10.41425 04 22 51.849 +18 40 14.23 23.0G 523955 F51 C~2r77 2022 12 01.482579 05 04 54.992 +18 33 25.64 22.5w 523955 F52 C~69PB 2022 12 01.494784 05 04 54.905 +18 33 24.94 22.7w 523955 F52 C~69PB 2022 12 01.507051 05 04 54.820 +18 33 24.79 22.5w 523955 F52 C~69PB 2022 12 01.519314 05 04 54.758 +18 33 25.02 22.3w 523955 F52 C~69PB 2023 11 19.87334 05 13 57.25 +18 28 56.7 22.8w 523955 O18 C~7b11 2023 11 19.87881 05 13 57.22 +18 28 56.8 22.7w 523955 O18 C~7b11 2023 11 19.88422 05 13 57.17 +18 28 56.7 22.4w 523955 O18 C~7b11
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 -0.73 0.00 -0.26
2 0.0004 0.00 -0.28 0.00 -0.46
3 0.0732 0.00 -0.29 0.00 0.18
4 0.0734 0.00 -0.34 0.00 0.04
5 0.0736 0.00 -1.57 0.00 0.10
6 0.1464 0.00 0.15 0.00 -0.20
7 0.1465 0.00 -0.03 0.00 -0.11
8 1.0508 0.00 1.24 0.00 0.47
9 1.0509 0.00 1.81 0.00 0.42
10 1.0510 0.00 1.28 0.00 0.22
11 1.0512 0.00 0.06 0.00 0.08
12 1.0514 0.00 -0.07 0.00 0.04
13 1.0515 0.00 -0.34 0.00 0.17
14 1.0538 0.00 0.07 0.00 0.24
15 1.0539 0.00 0.24 0.00 0.56
16 1.0540 0.00 -0.84 0.00 0.53
17 2.0885 0.00 0.06 0.00 -0.11
18 2.0890 0.00 0.03 0.00 0.11
19 4.9338 0.00 -0.21 0.00 -1.28
20 4.9340 0.00 -0.60 0.00 -0.10
21 8.1722 0.00 -0.30 0.00 0.03
22 8.1724 0.00 ( -2.88) 0.00 ( 1.48)
23 10.0072 0.00 0.41 0.00 -0.46
24 10.1654 0.00 -0.31 0.00 0.11
25 10.1656 0.00 -0.03 0.00 0.08
26 10.1683 0.00 -0.03 0.00 0.07
27 12.0469 0.00 0.14 0.00 -0.17
28 12.0470 0.00 0.03 0.00 -0.16
29 12.0470 0.00 0.16 0.00 -0.18
30 12.0470 0.00 0.09 0.00 -0.30
31 13.1060 0.00 -0.26 0.00 -0.02
32 13.1092 0.00 0.16 0.00 -0.21
33 13.3933 0.00 0.08 0.00 -0.14
34 14.0453 0.00 -0.02 0.00 -0.08
35 14.1354 0.00 -0.07 0.00 -0.20
36 14.1355 0.00 0.13 0.00 0.08
37 15.0505 0.00 0.04 0.00 0.02
38 16.2218 0.00 -0.15 0.00 -0.00
39 16.2519 0.00 0.01 0.00 -0.05
40 16.2573 0.00 -0.21 0.00 0.02
41 16.8303 0.00 -0.18 0.00 -0.02
42 16.9095 0.00 0.01 0.00 0.16
43 17.1228 0.00 0.44 0.00 -0.19
44 17.1256 0.00 0.06 0.00 -0.09
45 17.1256 0.00 -0.09 0.00 -0.05
46 17.1256 0.00 -0.03 0.00 -0.02
47 17.1257 0.00 -0.15 0.00 0.05
48 17.1310 0.00 0.06 0.00 -0.15
49 17.1310 0.00 0.05 0.00 0.06
50 17.1311 0.00 0.01 0.00 -0.05
51 17.1311 0.00 0.05 0.00 0.02
52 17.2099 0.00 0.03 0.00 -0.01
53 18.0977 0.00 -0.12 0.00 0.15
54 19.0232 0.00 0.03 0.00 0.14
55 19.0232 0.00 0.18 0.00 0.08
56 19.0232 0.00 0.08 0.00 0.03
57 19.0232 0.00 -0.23 0.00 -0.14
58 19.0232 0.00 0.09 0.00 0.07
59 19.0233 0.00 0.34 0.00 0.04
60 19.0233 0.00 -0.18 0.00 -0.09
61 19.1680 0.00 -0.03 0.00 -0.02
62 19.2199 0.00 -0.08 0.00 0.02
63 24.1099 0.00 0.11 0.00 0.43
64 24.1099 0.00 -0.05 0.00 -0.12
65 24.1099 0.00 -0.18 0.00 -0.12
66 24.1100 0.00 0.04 0.00 0.26
67 25.0774 0.00 0.11 0.00 0.06
68 25.0774 0.00 0.13 0.00 0.23
69 25.0774 0.00 -0.15 0.00 0.20
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.
523955 quality flag:3 Type: 4:3E 4:3E 4:3E axisobj 36.734 36.734 36.734 ecceobj 0.127 0.127 0.127 incobj 9.546 9.546 9.546 qmin 30.384 30.383 30.384 qmax 42.915 42.912 42.914 amean 36.477 36.477 36.477 amin 36.135 36.136 36.132 amax 36.859 36.860 36.854 emean 0.137 0.137 0.137 emin 0.108 0.108 0.108 emax 0.165 0.165 0.166 imean 11.066 11.074 11.065 imin 9.678 9.697 9.679 imax 12.817 12.818 12.817 excite_mean 0.236 0.236 0.236 fracstop 1.000 1.000 1.000 cjmean 2.965 2.965 2.965 libcent 0 180.0 180.0 179.2 libamp 0 63.7 64.0 64.6 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 178.9 179.1 179.0 kozaiamp 180.0 180.0 180.0