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: 612101
# Created Sun Nov 24 02:07:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 46 observations of 46
# Arc: 17.87y
# First observation: 1999/09/07
# Last observation: 2017/07/22
# Chi-squared of fit: 83.73 DOF: 86 RMS: 0.24
# Min/Max residuals: -0.67 0.88
# Exact a, adot, b, bdot, g, gdot:
1.865422E-05 3.520194E-02 6.326483E-06 1.113169E-02 2.937254E-02 -2.892604E-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
9.457442 -18.321299 -0.043244 0.164092 -0.986475 2451428.934853
# Heliocentric elements and errors
Epoch: 2451428.5000 = 1999/09/07
Mean Anomaly: 354.27444 +/- 0.000
Argument of Peri: 43.74794 +/- 0.000
Long of Asc Node: 314.89787 +/- 0.000
Inclination: 19.69579 +/- 0.000
Eccentricity: 0.42305222 +/- 0.0000
Semi-Major Axis: 60.07730930 +/- 0.0000
Time of Perihelion: 2454133.5770 +/- 0.0
Perihelion: 34.66147007 +/- 0.0000
Aphelion: 85.49314853 +/- 0.0000
Period (y) 465.6653 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 32.85109946 +/- 0.0000
Ecliptic Y -10.82736294 +/- 0.0000
Ecliptic Z 5.59439730 +/- 0.0000
Ecliptic XDOT 0.00061302 +/- 0.0000
Ecliptic YDOT 0.00326040 +/- 0.0000
Ecliptic ZDOT 0.00097925 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.03894404 +/- 0.0000
Geocenter to KBO 34.04550186 +/- 0.0000
# Hcoef: 7.34
The following table shows the complete astrometric record for 612101. 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 (612101) followed by the observatory code and reference code for the source of the astrometry.
1999 09 07.43411 22 38 03.36 +01 34 15.7 22.3R 612101 568 Ca8547 1999 09 07.46756 22 38 03.18 +01 34 14.9 22.3R 612101 568 Ca8547 1999 09 07.50057 22 38 03.02 +01 34 13.3 22.0R 612101 568 Ca8547 1999 09 09.44480 22 37 52.77 +01 33 21.6 22.4R 612101 568 Ca8547 1999 09 09.45640 22 37 52.71 +01 33 21.3 22.4R 612101 568 Ca8547 1999 09 13.39865 22 37 32.16 +01 31 33.0 22.3R 612101 568 Ca8547 1999 09 13.40573 22 37 32.12 +01 31 32.8 22.4R 612101 568 Ca8547 1999 10 10.24860 22 35 28.44 +01 18 49.4 22.8R 612101 568 Ca8547 1999 10 10.29797 22 35 28.24 +01 18 48.0 22.6R 612101 568 Ca8547 1999 11 09.27106 22 34 11.78 +01 07 20.7 22.7R 612101 568 Ca8547 1999 11 09.38201 22 34 11.65 +01 07 18.8 22.7R 612101 568 Ca8547 2000 08 28.40307 22 45 25.28 +02 59 36.4 612101 568 Cb9109 2000 08 28.42615 22 45 25.14 +02 59 35.8 22.5R 612101 568 Cb9109 2000 08 29.52351 22 45 19.31 +02 59 09.9 22.3R 612101 568 Cb9109 2000 08 29.56050 22 45 19.11 +02 59 08.9 22.6R 612101 568 Cb9109 2002 10 31.11219 22 53 53.31 +05 12 20.0 612101 695 Ch3084 2002 10 31.22290 22 53 53.00 +05 12 16.9 612101 695 Ch3084 2007 09 11.37815 23 31 23.28 +12 23 10.9 22.1r 612101 695 Cv8413 2007 09 11.42861 23 31 22.99 +12 23 09.7 21.8r 612101 695 Cv8413 2008 09 08.25449 23 38 35.24 +13 43 43.5 23.1R 612101 250 S~06AL 2008 09 08.26074 23 38 35.21 +13 43 43.4 612101 250 S~06AL 2008 09 08.31838 23 38 34.90 +13 43 42.1 612101 250 S~06AL 2008 09 08.32463 23 38 34.86 +13 43 41.9 612101 250 S~06AL 2008 10 23.18145 23 34 47.56 +13 19 49.7 22.7r 612101 695 C~0gLs 2008 10 24.21947 23 34 43.35 +13 19 11.8 22.4r 612101 695 C~0gLs 2008 10 24.29708 23 34 43.04 +13 19 09.3 21.9r 612101 695 C~0gLs 2012 10 08.29649 00 04 30.578 +18 39 05.96 22.5G 612101 F51 C~2r78 2012 10 08.31101 00 04 30.487 +18 39 05.56 22.8G 612101 F51 C~2r78 2012 10 08.32553 00 04 30.419 +18 39 05.10 22.4G 612101 F51 C~2r78 2012 10 08.34007 00 04 30.346 +18 39 04.56 22.4G 612101 F51 C~2r78 2013 08 27.59008 00 15 33.107 +20 08 26.83 22.9G 612101 F51 C~2r78 2014 09 13.58990 00 21 32.123 +21 17 25.03 22.9G 612101 F51 C~2r78 2014 09 19.53846 00 20 59.826 +21 15 29.66 612101 F51 C~2r78 2014 12 08.34681 00 15 30.891 +20 28 50.20 22.9G 612101 F51 C~2r78 2015 08 01.53550 00 31 51.501 +22 26 31.23 22.5G 612101 F51 C~2r78 2016 10 09.34318 00 34 05.517 +23 26 54.43 23.3G 612101 F51 C~2r78 2016 10 25.40612 00 32 38.986 +23 17 30.24 22.8G 612101 F51 C~2r78 2016 10 25.41817 00 32 38.913 +23 17 29.54 22.8G 612101 F51 C~2r78 2016 10 25.43015 00 32 38.846 +23 17 29.20 23.0G 612101 F51 C~2r78 2016 10 25.44220 00 32 38.784 +23 17 29.05 22.2G 612101 F51 C~2r78 2016 11 06.38438 00 31 42.245 +23 09 36.58 22.8G 612101 F51 C~2r78 2016 11 06.39639 00 31 42.188 +23 09 35.99 22.7G 612101 F51 C~2r78 2016 11 06.40844 00 31 42.129 +23 09 35.17 22.6G 612101 F51 C~2r78 2016 11 06.42051 00 31 42.075 +23 09 34.89 22.2G 612101 F51 C~2r78 2017 07 22.386973 00 46 58.99 +24 34 58.5 612101 W84 C~3i92 2017 07 22.388675 00 46 58.98 +24 34 58.6 612101 W84 C~3i92
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 0.08 0.00 -0.04
2 0.0001 0.00 0.08 0.00 0.05
3 0.0002 0.00 0.34 0.00 -0.67
4 0.0055 0.00 0.02 0.00 -0.15
5 0.0055 0.00 0.05 0.00 -0.14
6 0.0163 0.00 -0.18 0.00 -0.16
7 0.0163 0.00 -0.22 0.00 -0.17
8 0.0898 0.00 0.40 0.00 -0.05
9 0.0900 0.00 0.31 0.00 -0.09
10 0.1720 0.00 0.15 0.00 0.11
11 0.1723 0.00 0.16 0.00 0.06
12 0.9746 0.00 0.08 0.00 -0.32
13 0.9747 0.00 -0.14 0.00 -0.38
14 0.9777 0.00 -0.00 0.00 -0.17
15 0.9778 0.00 -0.01 0.00 -0.28
16 3.1476 0.00 -0.07 0.00 0.88
17 3.1480 0.00 -0.39 0.00 0.75
18 8.0108 0.00 -0.01 0.00 0.22
19 8.0109 0.00 -0.21 0.00 0.29
20 9.0043 0.00 0.09 0.00 0.23
21 9.0043 0.00 0.15 0.00 0.27
22 9.0045 0.00 0.14 0.00 0.28
23 9.0045 0.00 0.04 0.00 0.22
24 9.1273 0.00 -0.47 0.00 0.16
25 9.1301 0.00 -0.35 0.00 0.09
26 9.1304 0.00 -0.22 0.00 0.43
27 13.0866 0.00 0.02 0.00 -0.20
28 13.0866 0.00 -0.17 0.00 -0.10
29 13.0866 0.00 -0.00 0.00 -0.07
30 13.0867 0.00 0.09 0.00 -0.11
31 13.9717 0.00 -0.00 0.00 0.08
32 15.0175 0.00 -0.20 0.00 -0.05
33 15.0338 0.00 -0.31 0.00 0.18
34 15.2523 0.00 0.15 0.00 -0.08
35 15.8990 0.00 0.23 0.00 0.30
36 17.0894 0.00 0.31 0.00 -0.13
37 17.1334 0.00 0.27 0.00 -0.06
38 17.1334 0.00 0.11 0.00 -0.30
39 17.1335 0.00 0.04 0.00 -0.18
40 17.1335 0.00 0.05 0.00 0.13
41 17.1662 0.00 0.09 0.00 -0.01
42 17.1662 0.00 0.03 0.00 -0.11
43 17.1663 0.00 -0.05 0.00 -0.44
44 17.1663 0.00 -0.06 0.00 -0.22
45 17.8726 0.00 0.23 0.00 -0.07
46 17.8726 0.00 0.10 0.00 -0.02
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.
612101 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 59.986 59.986 59.986 ecceobj 0.422 0.422 0.422 incobj 19.704 19.704 19.704 qmin 33.325 33.205 33.220 qmax 86.534 86.635 86.240 amean 59.000 59.294 59.081 amin 58.230 58.306 58.252 amax 60.177 60.254 60.161 emean 0.414 0.418 0.412 emin 0.391 0.395 0.385 emax 0.438 0.439 0.435 imean 20.764 20.818 21.197 imin 19.713 19.911 19.994 imax 21.999 21.734 22.427 excite_mean 0.545 0.549 0.548 fracstop 1.000 1.000 1.000 cjmean 2.893 2.890 2.889 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 168.3 172.1 177.8 kozaiamp 180.0 180.0 180.0