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: 612619
# Created Mon Apr 28 01:07:46 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 8.16y
# First observation: 2000/10/02
# Last observation: 2008/11/30
# Chi-squared of fit: 49.36 DOF: 66 RMS: 0.21
# Min/Max residuals: -0.41 0.39
# Exact a, adot, b, bdot, g, gdot:
1.514553E-05 2.450482E-02 1.544370E-06 -4.923920E-04 2.475478E-02 6.706384E-04
# 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
0.975369 -4.372072 -0.233976 0.016277 -0.966749 2451819.841193
# Heliocentric elements and errors
Epoch: 2451820.5000 = 2000/10/03
Mean Anomaly: 42.31439 +/- 0.000
Argument of Peri: 94.51762 +/- 0.000
Long of Asc Node: 215.63272 +/- 0.000
Inclination: 1.49186 +/- 0.000
Eccentricity: 0.04342835 +/- 0.0000
Semi-Major Axis: 42.70171303 +/- 0.0000
Time of Perihelion: 2439840.6330 +/- 0.0
Perihelion: 40.84724829 +/- 0.0000
Aphelion: 44.55617777 +/- 0.0000
Period (y) 279.0462 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 41.26014891 +/- 0.0000
Ecliptic Y -2.91436841 +/- 0.0000
Ecliptic Z 0.68772185 +/- 0.0000
Ecliptic XDOT 0.00027396 +/- 0.0000
Ecliptic YDOT 0.00270157 +/- 0.0000
Ecliptic ZDOT -0.00005303 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.36864531 +/- 0.0000
Geocenter to KBO 40.39625518 +/- 0.0000
# Hcoef: 6.52
The following table shows the complete astrometric record for 612619. 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 (612619) followed by the observatory code and reference code for the source of the astrometry.
2000 10 02.34045 23 42 24.10 -00 50 32.5 23.2V 612619 645 cv2257 2001 11 12.15140 23 45 13.97 -00 34 48.6 23.2V 612619 645 cv2257 2002 10 11.31253 23 52 10.94 +00 09 07.1 23.0V 612619 645 cv2257 2003 09 25.39223 23 58 31.96 +00 48 39.6 612619 568 Cq9897 2003 09 25.43972 23 58 31.75 +00 48 38.3 612619 568 Cq9897 2003 09 25.51165 23 58 31.44 +00 48 36.2 612619 568 Cq9897 2003 09 27.35049 23 58 23.18 +00 47 41.7 23.0g 612619 568 Cq9897 2003 09 27.40316 23 58 22.93 +00 47 40.2 22.7g 612619 568 Cq9897 2003 09 27.44832 23 58 22.73 +00 47 39.0 22.9g 612619 568 Cq9897 2003 10 19.217704 23 56 49.79 +00 37 18.2 22.3V 612619 645 C~2Jx9 2003 10 19.218534 23 56 49.79 +00 37 18.2 22.5V 612619 645 C~2Jx9 2003 10 19.221021 23 56 49.79 +00 37 18.2 23.6V 612619 645 C~2Jx9 2003 10 23.214236 23 56 34.42 +00 35 34.4 22.4V 612619 645 C~2Jx9 2003 10 23.215066 23 56 34.41 +00 35 34.5 21.9V 612619 645 C~2Jx9 2003 10 23.217553 23 56 34.42 +00 35 34.4 24.6V 612619 645 C~2Jx9 2003 11 20.136201 23 55 13.40 +00 26 10.1 22.6V 612619 645 C~2Jx9 2003 11 20.137030 23 55 13.39 +00 26 10.2 22.3V 612619 645 C~2Jx9 2003 11 20.139518 23 55 13.41 +00 26 10.1 23.9V 612619 645 C~2Jx9 2003 11 22.27415 23 55 09.53 +00 25 42.0 22.8g 612619 568 Cq9897 2003 11 22.37461 23 55 09.36 +00 25 40.7 22.7g 612619 568 Cq9897 2004 09 06.37158 00 05 02.50 +01 29 04.4 22.4R 612619 695 Cq9897 2004 09 06.44865 00 05 02.16 +01 29 02.2 22.3R 612619 695 Cq9897 2004 09 11.30481 00 04 41.24 +01 26 46.2 612619 695 Cq9897 2004 09 11.35125 00 04 41.03 +01 26 44.8 612619 695 Cq9897 2004 09 11.39621 00 04 40.82 +01 26 43.5 612619 695 Cq9897 2004 10 16.298433 00 02 07.59 +01 09 50.5 23.1V 612619 645 C~2Jx9 2004 10 16.299262 00 02 07.59 +01 09 50.5 22.0V 612619 645 C~2Jx9 2004 10 16.301750 00 02 07.59 +01 09 50.5 23.9V 612619 645 C~2Jx9 2005 07 08.55090 00 12 44.79 +02 16 29.3 22.1r 612619 568 Cq9897 2005 07 08.58900 00 12 44.78 +02 16 29.2 21.7r 612619 568 Cq9897 2005 07 09.58094 00 12 44.40 +02 16 27.7 22.1r 612619 568 Cq9897 2008 10 03.237044 00 23 39.94 +03 21 31.4 22.6V 612619 645 C~1GLN 2008 10 03.237873 00 23 39.93 +03 21 31.3 22.3V 612619 645 C~1GLN 2008 10 03.240361 00 23 39.92 +03 21 31.3 23.7V 612619 645 C~1GLN 2008 11 30.12238 00 20 22.09 +02 59 17.5 22.8R 612619 688 C~02MR 2008 11 30.25113 00 20 21.87 +02 59 16.1 612619 688 C~02MR
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 0.25 0.00 -0.31
2 1.1110 0.00 -0.05 0.00 -0.02
3 2.0232 0.00 -0.05 0.00 -0.09
4 2.9789 0.00 -0.19 0.00 -0.03
5 2.9791 0.00 -0.08 0.00 0.08
6 2.9793 0.00 0.20 0.00 0.11
7 2.9843 0.00 -0.08 0.00 0.06
8 2.9844 0.00 -0.22 0.00 0.12
9 2.9846 0.00 -0.12 0.00 0.26
10 3.0442 0.00 0.04 0.00 -0.37
11 3.0442 0.00 0.09 0.00 -0.35
12 3.0442 0.00 0.24 0.00 -0.28
13 3.0551 0.00 0.03 0.00 -0.12
14 3.0551 0.00 -0.08 0.00 -0.00
15 3.0551 0.00 0.22 0.00 -0.04
16 3.1315 0.00 -0.09 0.00 -0.23
17 3.1315 0.00 -0.22 0.00 -0.12
18 3.1316 0.00 0.16 0.00 -0.19
19 3.1374 0.00 0.04 0.00 0.22
20 3.1377 0.00 0.20 0.00 0.20
21 3.9289 0.00 -0.19 0.00 0.39
22 3.9291 0.00 -0.29 0.00 0.32
23 3.9424 0.00 0.01 0.00 0.35
24 3.9425 0.00 -0.04 0.00 0.27
25 3.9427 0.00 -0.19 0.00 0.25
26 4.0382 0.00 0.13 0.00 -0.25
27 4.0382 0.00 0.18 0.00 -0.23
28 4.0382 0.00 0.33 0.00 -0.16
29 4.7644 0.00 -0.12 0.00 0.36
30 4.7645 0.00 -0.03 0.00 0.30
31 4.7673 0.00 -0.10 0.00 0.30
32 8.0025 0.00 0.17 0.00 -0.33
33 8.0025 0.00 0.08 0.00 -0.41
34 8.0025 0.00 0.10 0.00 -0.33
35 8.1609 0.00 -0.00 0.00 0.14
36 8.1613 0.00 -0.13 0.00 0.24
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.
612619 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.791 42.791 42.791 ecceobj 0.045 0.045 0.045 incobj 1.493 1.493 1.493 qmin 39.645 39.652 39.644 qmax 45.637 45.635 45.629 amean 42.542 42.542 42.542 amin 42.206 42.204 42.208 amax 42.888 42.881 42.895 emean 0.043 0.043 0.043 emin 0.018 0.018 0.017 emax 0.064 0.065 0.065 imean 3.731 3.731 3.730 imin 2.423 2.424 2.422 imax 4.729 4.729 4.729 excite_mean 0.078 0.078 0.078 fracstop 1.000 1.000 1.000 cjmean 3.077 3.077 3.077 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 183.3 183.5 183.4 kozaiamp 180.0 179.9 180.0