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: 85627
# Created Wed Dec 25 02:06:46 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 54 observations of 54
# Arc: 20.20y
# First observation: 1998/04/28
# Last observation: 2018/07/12
# Chi-squared of fit: 38.00 DOF: 102 RMS: 0.15
# Min/Max residuals: -0.38 0.36
# Exact a, adot, b, bdot, g, gdot:
1.542485E-05 2.315928E-02 9.022216E-07 -6.089755E-04 2.388847E-02 -1.823434E-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
0.165807 -129.901257 0.218439 0.002622 -0.987992 2450931.999271
# Heliocentric elements and errors
Epoch: 2450932.5000 = 1998/04/29
Mean Anomaly: 290.76454 +/- 0.000
Argument of Peri: 253.07990 +/- 0.000
Long of Asc Node: 55.94292 +/- 0.000
Inclination: 1.51877 +/- 0.000
Eccentricity: 0.08980321 +/- 0.0000
Semi-Major Axis: 43.92109726 +/- 0.0000
Time of Perihelion: 2471379.7203 +/- 0.0
Perihelion: 39.97684155 +/- 0.0000
Aphelion: 47.86535297 +/- 0.0000
Period (y) 291.0838 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -27.64503365 +/- 0.0000
Ecliptic Y -32.73448964 +/- 0.0000
Ecliptic Z 0.12120615 +/- 0.0000
Ecliptic XDOT 0.00217211 +/- 0.0000
Ecliptic YDOT -0.00153373 +/- 0.0000
Ecliptic ZDOT -0.00007049 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.84640168 +/- 0.0000
Geocenter to KBO 41.86127381 +/- 0.0000
# Hcoef: 7.25
The following table shows the complete astrometric record for 85627. 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 (85627) followed by the observatory code and reference code for the source of the astrometry.
1998 04 28.49854 15 10 48.35 -17 36 27.9 23.3R 85627 568 Ca4825 1998 04 28.53791 15 10 48.16 -17 36 27.1 23.3R 85627 568 Ca4825 1998 04 28.57687 15 10 47.99 -17 36 26.3 23.3R 85627 568 Ca4825 1998 04 30.51423 15 10 38.93 -17 35 50.9 23.3R 85627 568 Ca4825 1998 04 30.54746 15 10 38.76 -17 35 50.1 23.3R 85627 568 Ca4825 1998 04 30.55509 15 10 38.73 -17 35 50.1 23.3R 85627 568 Ca4825 1998 05 24.34801 15 08 45.99 -17 28 27.7 23.3R 85627 568 Ca4825 1998 05 24.35970 15 08 45.93 -17 28 27.8 23.3R 85627 568 Ca4825 1998 06 29.40581 15 06 26.20 -17 19 20.3 23.3R 85627 568 Ca4825 1998 06 29.46823 15 06 26.03 -17 19 19.6 23.3R 85627 568 Ca4825 1999 04 08.54442 15 17 35.44 -18 04 59.1 23.2R 85627 568 Ca4825 1999 04 08.56718 15 17 35.35 -18 04 59.1 23.2R 85627 568 Ca4825 1999 05 06.51082 15 15 31.89 -17 57 12.4 23.3R 85627 568 Ca4825 1999 05 06.54164 15 15 31.74 -17 57 11.9 23.3R 85627 568 Ca4825 2000 05 07.48272 15 20 46.09 -18 19 20.8 23.4R 85627 568 Cb5091 2000 05 07.53292 15 20 45.84 -18 19 20.0 23.6R 85627 568 Cb5091 2004 05 27.01245 15 41 08.11 -19 39 54.2 22.5R 85627 304 Ck8630 2004 05 27.02591 15 41 08.04 -19 39 54.1 85627 304 Ck8630 2004 05 27.03037 15 41 08.03 -19 39 54.0 85627 304 Ck8630 2004 05 27.03494 15 41 08.00 -19 39 54.0 85627 304 Ck8630 2004 05 27.03940 15 41 07.99 -19 39 53.9 85627 304 Ck8630 2004 05 27.04385 15 41 07.96 -19 39 53.9 85627 304 Ck8630 2004 05 27.04845 15 41 07.92 -19 39 53.8 85627 304 Ck8630 2004 05 27.05737 15 41 07.89 -19 39 53.6 85627 304 Ck8630 2004 05 27.06206 15 41 07.86 -19 39 53.5 85627 304 Ck8630 2004 05 27.06652 15 41 07.84 -19 39 53.5 85627 304 Ck8630 2004 05 27.07097 15 41 07.82 -19 39 53.4 85627 304 Ck8630 2004 05 27.07554 15 41 07.80 -19 39 53.4 85627 304 Ck8630 2004 05 27.08001 15 41 07.78 -19 39 53.2 85627 304 Ck8630 2004 05 27.08447 15 41 07.74 -19 39 53.2 85627 304 Ck8630 2004 05 27.08900 15 41 07.73 -19 39 53.3 85627 304 Ck8630 2004 05 27.09346 15 41 07.71 -19 39 53.0 85627 304 Ck8630 2004 05 27.09792 15 41 07.69 -19 39 53.0 85627 304 Ck8630 2005 06 06.237779 15 45 56.73 -19 57 42.5 85627 645 C~1ctm 2005 06 06.238608 15 45 56.73 -19 57 42.5 85627 645 C~1ctm 2005 06 06.241096 15 45 56.71 -19 57 42.5 85627 645 C~1ctm 2007 05 13.30864 15 59 18.88 -20 42 21.1 22.9R 85627 250 S~06GU 2007 05 13.31559 15 59 18.85 -20 42 21.0 85627 250 S~06GU 2007 05 13.37253 15 59 18.57 -20 42 20.2 85627 250 S~06GU 2007 05 13.37948 15 59 18.53 -20 42 20.1 85627 250 S~06GU 2011 05 24.469207 16 21 38.048 -21 49 18.39 23.1G 85627 F51 C~41zW 2011 05 30.407133 16 21 07.760 -21 48 09.81 22.1G 85627 F51 C~41zW 2013 06 07.430667 16 32 14.698 -22 17 14.42 22.4G 85627 F51 C~41zW 2014 05 21.479323 16 39 42.067 -22 34 11.91 23.5G 85627 F51 C~41zW 2014 05 28.436090 16 39 06.526 -22 33 07.07 23.2G 85627 F51 C~41zW 2014 06 28.371167 16 36 32.141 -22 28 13.24 23.3G 85627 F51 C~41zW 2014 07 25.345031 16 34 51.488 -22 24 50.98 22.4G 85627 F51 C~41zW 2015 07 09.388737 16 41 45.810 -22 40 26.53 23.2G 85627 F51 C~41zW 2015 08 06.314806 16 40 21.149 -22 37 43.14 23.7G 85627 F51 C~41zW 2016 06 08.445114 16 50 13.322 -22 57 24.77 23.0G 85627 F51 C~41zW 2018 07 12.340263 16 59 47.817 -23 16 33.49 23.7G 85627 F51 C~41zW 2018 07 12.350735 16 59 47.771 -23 16 33.31 23.5G 85627 F51 C~41zW 2018 07 12.361230 16 59 47.722 -23 16 32.99 23.6G 85627 F51 C~41zW 2018 07 12.371725 16 59 47.663 -23 16 32.84 23.2G 85627 F51 C~41zW
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 -0.10 0.00 -0.25
2 0.0001 0.00 -0.15 0.00 -0.18
3 0.0002 0.00 0.07 0.00 -0.09
4 0.0055 0.00 0.03 0.00 -0.11
5 0.0056 0.00 -0.14 0.00 0.08
6 0.0056 0.00 -0.04 0.00 -0.06
7 0.0708 0.00 -0.16 0.00 0.36
8 0.0708 0.00 -0.24 0.00 0.04
9 0.1695 0.00 0.00 0.00 -0.14
10 0.1697 0.00 0.15 0.00 -0.14
11 0.9447 0.00 -0.13 0.00 0.09
12 0.9447 0.00 -0.14 0.00 -0.24
13 1.0213 0.00 0.08 0.00 -0.18
14 1.0213 0.00 0.07 0.00 -0.24
15 2.0260 0.00 0.11 0.00 -0.23
16 2.0261 0.00 0.05 0.00 -0.33
17 6.0794 0.00 0.04 0.00 0.19
18 6.0795 0.00 -0.02 0.00 0.09
19 6.0795 0.00 0.16 0.00 0.12
20 6.0795 0.00 0.05 0.00 0.05
21 6.0795 0.00 0.23 0.00 0.08
22 6.0795 0.00 0.11 0.00 0.01
23 6.0795 0.00 -0.15 0.00 0.04
24 6.0796 0.00 0.06 0.00 0.11
25 6.0796 0.00 -0.05 0.00 0.13
26 6.0796 0.00 -0.02 0.00 0.07
27 6.0796 0.00 0.01 0.00 0.10
28 6.0796 0.00 0.05 0.00 0.03
29 6.0796 0.00 0.08 0.00 0.16
30 6.0796 0.00 -0.19 0.00 0.09
31 6.0796 0.00 -0.00 0.00 -0.08
32 6.0797 0.00 0.03 0.00 0.15
33 6.0797 0.00 0.06 0.00 0.08
34 7.1067 0.00 0.20 0.00 0.26
35 7.1067 0.00 0.26 0.00 0.25
36 7.1068 0.00 0.13 0.00 0.21
37 9.0399 0.00 0.06 0.00 -0.11
38 9.0399 0.00 0.12 0.00 -0.11
39 9.0400 0.00 0.12 0.00 -0.08
40 9.0401 0.00 0.03 0.00 -0.08
41 13.0704 0.00 -0.16 0.00 0.17
42 13.0867 0.00 -0.12 0.00 0.02
43 15.1100 0.00 -0.15 0.00 0.16
44 16.0629 0.00 -0.05 0.00 0.07
45 16.0820 0.00 -0.02 0.00 -0.04
46 16.1667 0.00 -0.33 0.00 -0.09
47 16.2405 0.00 -0.06 0.00 -0.38
48 17.1961 0.00 -0.06 0.00 -0.23
49 17.2726 0.00 -0.01 0.00 0.19
50 18.1135 0.00 0.16 0.00 0.08
51 20.2049 0.00 0.16 0.00 -0.37
52 20.2049 0.00 0.14 0.00 -0.25
53 20.2050 0.00 0.07 0.00 0.00
54 20.2050 0.00 -0.14 0.00 0.09
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.
85627 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.738 43.737 43.738 ecceobj 0.087 0.087 0.087 incobj 1.518 1.518 1.518 qmin 39.517 39.509 39.517 qmax 48.877 48.867 48.878 amean 44.045 44.045 44.045 amin 43.696 43.698 43.695 amax 44.428 44.423 44.422 emean 0.083 0.083 0.083 emin 0.066 0.066 0.066 emax 0.100 0.100 0.100 imean 1.009 1.009 1.009 imin 0.114 0.112 0.114 imax 1.617 1.617 1.617 excite_mean 0.085 0.085 0.085 fracstop 1.000 1.000 1.000 cjmean 3.093 3.093 3.093 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 198.3 198.2 198.2 kozaiamp 179.9 179.9 180.0