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: 455209
# Created Wed Dec 25 02:07:03 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 14.05y
# First observation: 2001/05/24
# Last observation: 2015/06/12
# Chi-squared of fit: 31.37 DOF: 34 RMS: 0.22
# Min/Max residuals: -0.41 0.58
# Exact a, adot, b, bdot, g, gdot:
1.698446E-05 2.402302E-02 1.465001E-06 6.035495E-04 2.415819E-02 1.222897E-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
0.953020 -143.004017 -0.445122 0.015131 -0.916583 2452053.547283
# Heliocentric elements and errors
Epoch: 2452054.5000 = 2001/05/25
Mean Anomaly: 43.85774 +/- 0.000
Argument of Peri: 341.76345 +/- 0.000
Long of Asc Node: 184.62722 +/- 0.000
Inclination: 1.71322 +/- 0.000
Eccentricity: 0.08583241 +/- 0.0000
Semi-Major Axis: 44.91214179 +/- 0.0000
Time of Perihelion: 2438661.1920 +/- 0.0
Perihelion: 41.05722462 +/- 0.0000
Aphelion: 48.76705895 +/- 0.0000
Period (y) 300.9912 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.51618829 +/- 0.0000
Ecliptic Y -25.80801415 +/- 0.0000
Ecliptic Z 0.68853507 +/- 0.0000
Ecliptic XDOT 0.00152014 +/- 0.0000
Ecliptic YDOT -0.00225485 +/- 0.0000
Ecliptic ZDOT 0.00007089 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.30672613 +/- 0.0000
Geocenter to KBO 41.39384330 +/- 0.0000
# Hcoef: 6.91
The following table shows the complete astrometric record for 455209. 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 (455209) followed by the observatory code and reference code for the source of the astrometry.
2001 05 24.04654 14 19 53.99 -12 56 54.1 22.8R 455209 807 Cd1817 2001 05 24.15511 14 19 53.55 -12 56 51.8 455209 807 Cd1817 2001 06 09.99814 14 18 52.00 -12 51 48.4 23.7R 455209 304 Cd1817 2001 06 10.07124 14 18 51.76 -12 51 47.2 455209 304 Cd1817 2001 08 20.98264 14 18 31.15 -12 51 12.1 22.2R 455209 807 Ch1324 2001 08 21.04365 14 18 31.30 -12 51 13.0 455209 807 Ch1324 2002 04 06.22130 14 28 52.41 -13 39 28.6 22.0R 455209 807 Cf4617 2002 04 06.36110 14 28 51.81 -13 39 25.4 455209 807 Cf4617 2002 04 07.26961 14 28 48.01 -13 39 05.7 455209 807 Cf4617 2004 04 22.40696 14 38 27.16 -14 20 49.2 23.2R 455209 568 Ck9562 2004 04 22.49551 14 38 26.76 -14 20 47.4 455209 568 Ck9562 2004 06 09.29726 14 34 59.55 -14 04 32.2 23.4R 455209 568 Ck8985 2004 06 09.36430 14 34 59.30 -14 04 31.1 455209 568 Ck8985 2015 05 20.19139 15 35 53.42 -17 54 49.9 455209 W84 C~1TiY 2015 05 21.22955 15 35 48.48 -17 54 32.8 23.6V 455209 W84 C~1TiY 2015 05 22.27165 15 35 43.50 -17 54 15.7 455209 W84 C~1TiY 2015 05 24.18398 15 35 34.45 -17 53 44.2 455209 W84 C~1TiY 2015 06 12.21278 15 34 08.43 -17 48 52.7 22.5R 455209 695 C~1hTQ 2015 06 12.26067 15 34 08.22 -17 48 52.0 455209 695 C~1hTQ 2015 06 12.31376 15 34 08.01 -17 48 51.4 455209 695 C~1hTQ
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 -0.33 0.00 -0.12
2 0.0003 0.00 -0.16 0.00 -0.02
3 0.0464 0.00 -0.10 0.00 0.21
4 0.0466 0.00 -0.14 0.00 0.28
5 0.2435 0.00 0.58 0.00 0.16
6 0.2437 0.00 0.29 0.00 0.18
7 0.8684 0.00 0.07 0.00 -0.25
8 0.8688 0.00 0.01 0.00 -0.05
9 0.8712 0.00 0.28 0.00 0.16
10 2.9141 0.00 -0.13 0.00 -0.25
11 2.9143 0.00 0.08 0.00 -0.41
12 3.0452 0.00 -0.13 0.00 -0.04
13 3.0454 0.00 -0.30 0.00 -0.00
14 13.9881 0.00 -0.03 0.00 0.20
15 13.9909 0.00 0.03 0.00 0.16
16 13.9938 0.00 -0.33 0.00 0.10
17 13.9990 0.00 -0.22 0.00 0.29
18 14.0511 0.00 0.15 0.00 -0.16
19 14.0512 0.00 0.08 0.00 -0.14
20 14.0514 0.00 0.35 0.00 -0.29
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.
455209 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.814 44.814 44.814 ecceobj 0.083 0.083 0.083 incobj 1.714 1.714 1.714 qmin 40.483 40.493 40.492 qmax 50.065 50.049 50.086 amean 45.168 45.166 45.163 amin 44.790 44.793 44.799 amax 45.550 45.545 45.551 emean 0.086 0.086 0.086 emin 0.072 0.072 0.072 emax 0.099 0.099 0.100 imean 2.469 2.469 2.469 imin 1.892 1.890 1.890 imax 2.945 2.945 2.945 excite_mean 0.096 0.096 0.096 fracstop 1.000 1.000 1.000 cjmean 3.104 3.104 3.104 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 172.3 172.5 172.3 kozaiamp 179.9 179.9 179.9