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: 508823 # Created Fri Nov 22 02:07:15 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 77 observations of 77 # Arc: 16.03y # First observation: 2001/09/12 # Last observation: 2017/09/23 # Chi-squared of fit: 209.42 DOF: 148 RMS: 0.29 # Min/Max residuals: -1.22 1.07 # Exact a, adot, b, bdot, g, gdot: 1.377434E-05 2.212330E-02 4.456225E-06 7.704560E-03 2.526388E-02 7.475593E-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 -2.485808 14.181989 0.422744 -0.039667 -0.910866 2452164.864523 # Heliocentric elements and errors Epoch: 2452164.5000 = 2001/09/12 Mean Anomaly: 78.73055 +/- 0.000 Argument of Peri: 240.41657 +/- 0.000 Long of Asc Node: 20.57994 +/- 0.000 Inclination: 19.22103 +/- 0.000 Eccentricity: 0.29313356 +/- 0.0000 Semi-Major Axis: 39.40176512 +/- 0.0000 Time of Perihelion: 2432407.8769 +/- 0.0 Perihelion: 27.85178555 +/- 0.0000 Aphelion: 50.95174469 +/- 0.0000 Period (y) 247.3328 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 39.32960564 +/- 0.0000 Ecliptic Y 9.50821573 +/- 0.0000 Ecliptic Z -1.71656176 +/- 0.0000 Ecliptic XDOT 0.00022375 +/- 0.0000 Ecliptic YDOT 0.00253265 +/- 0.0000 Ecliptic ZDOT 0.00079923 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.49884284 +/- 0.0000 Geocenter to KBO 39.58205281 +/- 0.0000 # Hcoef: 6.50
The following table shows the complete astrometric record for 508823. 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 (508823) followed by the observatory code and reference code for the source of the astrometry.
2001 09 12.36378 00 56 04.34 +03 18 01.6 22.1R 508823 695 Ce0436 2001 09 12.45042 00 56 03.97 +03 17 59.5 508823 695 Ce0436 2001 10 19.35775 00 53 09.26 +03 02 22.6 22.0R 508823 695 Ce0436 2001 10 19.40456 00 53 09.04 +03 02 21.3 508823 695 Ce0436 2001 10 20.35560 00 53 04.52 +03 01 58.5 508823 695 Ce0436 2001 11 03.05590 00 52 02.55 +02 56 53.4 20.1 508823 304 Ce6603 2001 11 03.10201 00 52 02.35 +02 56 52.2 508823 304 Ce6603 2002 08 11.38957 01 01 50.85 +04 21 17.8 21.6R 508823 807 Cg3223 2002 08 12.33198 01 01 48.72 +04 21 06.1 508823 807 Cg3223 2002 08 12.40948 01 01 48.53 +04 21 05.2 508823 807 Cg3223 2002 10 11.29186 00 57 49.16 +03 59 25.2 22.3R 508823 290 Cg7894 2002 10 11.39979 00 57 48.65 +03 59 22.4 22.5R 508823 290 Cg7894 2002 11 07.32892 00 55 45.29 +03 49 02.9 22.5R 508823 568 Cl8341 2002 11 07.39226 00 55 44.98 +03 49 01.6 508823 568 Cl8341 2002 11 28.12946 00 54 32.55 +03 43 48.1 22.0R 508823 688 Cg7894 2002 11 28.23981 00 54 32.23 +03 43 47.5 508823 688 Cg7894 2002 12 02.15810 00 54 21.95 +03 43 11.3 22.3R 508823 688 Cg7894 2002 12 02.25417 00 54 21.70 +03 43 10.4 508823 688 Cg7894 2005 09 28.297889 01 10 30.83 +06 40 21.1 22.7V 508823 645 C~2Jx5 2005 09 28.298718 01 10 30.81 +06 40 21.0 22.1V 508823 645 C~2Jx5 2005 09 28.301296 01 10 30.83 +06 40 21.2 24.2V 508823 645 C~2Jx5 2005 10 03.74414 01 10 05.30 +06 38 09.3 22.0R 508823 250 S~06AQ 2005 10 03.75086 01 10 05.26 +06 38 09.1 508823 250 S~06AQ 2005 10 03.75757 01 10 05.23 +06 38 08.9 508823 250 S~06AQ 2006 09 24.35001 01 14 38.21 +07 32 09.9 22.4R 508823 688 Cs0799 2006 09 24.42633 01 14 37.86 +07 32 08.4 508823 688 Cs0799 2008 11 01.373038 01 19 09.59 +08 55 05.5 22.8V 508823 645 C~2Jx5 2008 11 01.373867 01 19 09.59 +08 55 05.4 22.4V 508823 645 C~2Jx5 2008 11 01.376355 01 19 09.60 +08 55 05.4 23.6V 508823 645 C~2Jx5 2011 12 25.08912 01 27 26.69 +11 02 51.1 22.4R 508823 688 C~0bcY 2011 12 25.22216 01 27 26.51 +11 02 48.0 508823 688 C~0bcY 2013 09 02.42913 01 41 48.059 +13 07 25.13 23.1r 508823 568 C~2WX1 2013 09 02.47226 01 41 47.919 +13 07 24.76 23.0r 508823 568 C~2WX1 2013 09 03.44820 01 41 44.964 +13 07 14.58 23.0r 508823 568 C~2WX1 2013 09 03.49483 01 41 44.816 +13 07 14.10 22.8r 508823 568 C~2WX1 2013 10 08.50929 01 39 25.480 +12 57 29.47 23.0r 508823 568 C~2WX1 2013 10 30.50202 01 37 42.429 +12 49 12.94 22.8r 508823 568 C~2WX1 2013 11 01.50542 01 37 33.199 +12 48 26.92 22.8r 508823 568 C~2WX1 2013 11 28.29208 01 35 43.318 +12 39 01.10 23.0r 508823 568 C~2WX1 2013 11 29.24926 01 35 40.054 +12 38 43.77 23.0r 508823 568 C~2WX1 2013 12 04.39820 01 35 23.486 +12 37 15.71 23.0r 508823 568 C~2WX1 2013 12 29.26359 01 34 31.778 +12 32 35.74 23.1r 508823 568 C~2WX1 2013 12 30.36912 01 34 30.676 +12 32 29.70 23.4r 508823 568 C~2WX1 2014 01 02.24545 01 34 28.348 +12 32 16.95 22.9r 508823 568 C~2WX2 2014 01 02.29253 01 34 28.310 +12 32 16.71 23.1r 508823 568 C~2WX2 2014 01 03.21549 01 34 27.724 +12 32 13.39 23.2r 508823 568 C~2WX2 2014 01 03.25792 01 34 27.697 +12 32 13.39 23.0r 508823 568 C~2WX2 2014 01 03.32340 01 34 27.661 +12 32 13.00 23.3r 508823 568 C~2WX2 2014 07 26.52587 01 46 17.861 +13 51 37.55 23.1r 508823 568 C~2WX2 2014 07 26.56909 01 46 17.863 +13 51 37.96 23.0r 508823 568 C~2WX2 2014 07 26.61244 01 46 17.863 +13 51 38.31 23.1r 508823 568 C~2WX2 2014 08 24.53579 01 45 46.117 +13 52 24.94 22.9r 508823 568 C~2WX2 2014 08 30.44167 01 45 31.417 +13 51 46.34 23.1r 508823 568 C~2WX2 2014 08 30.54834 01 45 31.125 +13 51 45.47 22.9r 508823 568 C~2WX2 2014 09 18.46688 01 44 28.286 +13 48 03.13 23.0r 508823 568 C~2WX2 2014 09 18.50960 01 44 28.119 +13 48 02.50 23.0r 508823 568 C~2WX2 2014 09 23.50788 01 44 08.171 +13 46 41.67 23.0r 508823 568 C~2WX2 2014 10 22.29094 01 41 58.076 +13 36 55.26 22.9r 508823 568 C~2WX2 2014 10 22.33551 01 41 57.863 +13 36 54.21 22.7r 508823 568 C~2WX2 2014 10 22.38043 01 41 57.646 +13 36 53.19 22.9r 508823 568 C~2WX2 2014 10 23.47641 01 41 52.466 +13 36 28.28 22.8r 508823 568 C~2WX2 2014 10 25.49236 01 41 42.971 +13 35 42.42 22.9r 508823 568 C~2WX2 2014 11 20.22362 01 39 49.348 +13 26 09.60 23.0r 508823 568 C~2WX2 2014 11 20.36407 01 39 48.782 +13 26 06.75 23.1r 508823 568 C~2WX2 2014 11 21.26073 01 39 45.267 +13 25 48.32 22.9r 508823 568 C~2WX2 2014 11 21.27044 01 39 45.227 +13 25 48.10 22.9r 508823 568 C~2WX2 2014 11 21.42582 01 39 44.615 +13 25 44.90 23.0r 508823 568 C~2WX2 2015 01 28.26749 01 38 11.038 +13 17 00.70 22.8r 508823 568 C~2WX2 2015 02 18.26839 01 39 02.297 +13 21 46.23 23.1r 508823 568 C~2WX2 2015 12 07.42022 01 42 23.508 +14 04 34.22 23.2w 508823 568 C~2WX2 2016 11 04.38287 01 48 02.537 +14 58 36.20 23.0w 508823 568 C~2WX2 2016 11 04.43686 01 48 02.285 +14 58 35.01 23.1w 508823 568 C~2WX2 2017 08 25.58743 01 56 16.283 +15 59 16.07 23.1w 508823 568 C~2WX2 2017 08 30.60899 01 56 04.498 +15 58 55.51 23.3w 508823 568 C~2WX2 2017 09 23.37429 01 54 45.89 +15 54 54.7 22.5R 508823 G37 C~2LPi 2017 09 23.41598 01 54 45.74 +15 54 54.0 508823 G37 C~2LPi 2017 09 23.45735 01 54 45.55 +15 54 53.4 508823 G37 C~2LPi
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 -0.02 0.00 0.08
2 0.0002 0.00 0.16 0.00 0.07
3 0.1013 0.00 0.12 0.00 0.28
4 0.1014 0.00 0.20 0.00 0.12
5 0.1040 0.00 -0.01 0.00 0.26
6 0.1415 0.00 -0.14 0.00 0.22
7 0.1417 0.00 -0.13 0.00 -0.05
8 0.9118 0.00 -0.31 0.00 0.00
9 0.9144 0.00 -0.22 0.00 -0.09
10 0.9146 0.00 -0.29 0.00 -0.01
11 1.0785 0.00 -0.13 0.00 -0.35
12 1.0788 0.00 0.18 0.00 -0.40
13 1.1525 0.00 0.13 0.00 -0.14
14 1.1527 0.00 -0.53 0.00 -0.21
15 1.2095 0.00 -0.21 0.00 -0.45
16 1.2098 0.00 -0.28 0.00 0.08
17 1.2205 0.00 -0.14 0.00 0.09
18 1.2208 0.00 -0.23 0.00 -0.02
19 4.0436 0.00 -0.05 0.00 -0.20
20 4.0436 0.00 -0.29 0.00 -0.28
21 4.0436 0.00 0.19 0.00 -0.02
22 4.0585 0.00 1.01 0.00 1.00
23 4.0586 0.00 0.89 0.00 0.97
24 4.0586 0.00 0.92 0.00 0.93
25 5.0321 0.00 -0.29 0.00 -0.24
26 5.0323 0.00 -0.31 0.00 0.01
27 7.1376 0.00 -0.01 0.00 -0.57
28 7.1376 0.00 0.05 0.00 -0.65
29 7.1376 0.00 0.36 0.00 -0.59
30 10.2826 0.00 -0.34 0.00 1.07
31 10.2830 0.00 -0.35 0.00 -1.22
32 11.9728 0.00 0.03 0.00 -0.16
33 11.9729 0.00 -0.09 0.00 -0.10
34 11.9756 0.00 -0.09 0.00 -0.12
35 11.9757 0.00 -0.12 0.00 -0.12
36 12.0716 0.00 -0.18 0.00 -0.05
37 12.1318 0.00 0.02 0.00 -0.08
38 12.1373 0.00 -0.02 0.00 -0.04
39 12.2106 0.00 0.02 0.00 -0.03
40 12.2132 0.00 0.02 0.00 -0.06
41 12.2273 0.00 0.01 0.00 -0.06
42 12.2954 0.00 0.03 0.00 0.00
43 12.2984 0.00 0.05 0.00 -0.01
44 12.3063 0.00 0.10 0.00 0.05
45 12.3064 0.00 0.07 0.00 -0.01
46 12.3090 0.00 0.01 0.00 -0.11
47 12.3091 0.00 0.03 0.00 0.03
48 12.3093 0.00 0.14 0.00 -0.14
49 12.8683 0.00 -0.06 0.00 -0.08
50 12.8685 0.00 -0.08 0.00 -0.05
51 12.8686 0.00 -0.11 0.00 -0.08
52 12.9478 0.00 -0.06 0.00 -0.08
53 12.9639 0.00 -0.08 0.00 -0.04
54 12.9642 0.00 -0.01 0.00 -0.09
55 13.0160 0.00 -0.06 0.00 -0.07
56 13.0161 0.00 -0.04 0.00 -0.05
57 13.0298 0.00 -0.02 0.00 -0.03
58 13.1086 0.00 0.01 0.00 0.08
59 13.1088 0.00 0.01 0.00 0.03
60 13.1089 0.00 -0.01 0.00 0.03
61 13.1119 0.00 -0.05 0.00 -0.03
62 13.1174 0.00 -0.06 0.00 0.01
63 13.1878 0.00 0.08 0.00 -0.03
64 13.1882 0.00 0.08 0.00 0.01
65 13.1907 0.00 0.06 0.00 0.01
66 13.1907 0.00 0.04 0.00 -0.01
67 13.1911 0.00 0.14 0.00 -0.03
68 13.3769 0.00 0.14 0.00 0.08
69 13.4344 0.00 0.08 0.00 0.01
70 14.2342 0.00 0.08 0.00 0.02
71 15.1458 0.00 0.21 0.00 0.07
72 15.1460 0.00 0.20 0.00 0.10
73 15.9513 0.00 0.14 0.00 0.20
74 15.9651 0.00 0.11 0.00 0.17
75 16.0301 0.00 -0.34 0.00 0.40
76 16.0303 0.00 -0.05 0.00 0.31
77 16.0304 0.00 -0.39 0.00 0.33
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.
508823 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.583 39.583 39.582 ecceobj 0.294 0.294 0.294 incobj 19.184 19.184 19.184 qmin 26.940 26.939 26.941 qmax 52.507 52.505 52.509 amean 39.453 39.454 39.453 amin 39.034 39.042 39.033 amax 39.935 39.960 39.920 emean 0.258 0.258 0.258 emin 0.192 0.192 0.192 emax 0.316 0.316 0.316 imean 21.227 21.226 21.228 imin 18.736 18.735 18.736 imax 23.344 23.318 23.334 excite_mean 0.446 0.446 0.446 fracstop 1.000 1.000 1.000 cjmean 2.823 2.823 2.823 libcent 0 180.2 181.5 180.6 libamp 0 66.6 66.1 65.7 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 274.6 274.5 274.5 kozaiamp 46.3 46.2 46.3