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: 00PG30
# Created Wed Dec 25 02:08:04 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 21.18y
# First observation: 1999/07/18
# Last observation: 2020/09/21
# Chi-squared of fit: 90.58 DOF: 34 RMS: 0.38
# Min/Max residuals: -0.68 0.73
# Exact a, adot, b, bdot, g, gdot:
1.348288E-05 1.903868E-02 1.863712E-06 -1.530862E-03 2.155291E-02 -1.657034E-03
# Covariance matrix:
3.4541E-13 -1.7760E-13 -1.9584E-14 1.4849E-14 9.2322E-14 -3.9837E-13
-1.7760E-13 1.3159E-13 1.4572E-14 -1.1015E-14 9.0541E-15 2.9432E-13
-1.9584E-14 1.4572E-14 9.8662E-14 -7.7918E-15 -7.7700E-16 3.3198E-14
1.4849E-14 -1.1015E-14 -7.7918E-15 2.6149E-15 7.9078E-16 -2.5116E-14
9.2322E-14 9.0541E-15 -7.7700E-16 7.9078E-16 4.6938E-13 -2.8377E-14
-3.9837E-13 2.9432E-13 3.3198E-14 -2.5116E-14 -2.8377E-14 6.7184E-13
# lat0 lon0 xBary yBary zBary JD0
0.574147 -56.596223 0.149280 0.009812 -1.003234 2451377.922683
# Heliocentric elements and errors
Epoch: 2451378.5000 = 1999/07/19
Mean Anomaly: 248.07237 +/- 0.057
Argument of Peri: 295.46916 +/- 0.043
Long of Asc Node: 130.19794 +/- 0.000
Inclination: 4.62540 +/- 0.000
Eccentricity: 0.10445311 +/- 0.0001
Semi-Major Axis: 45.24033444 +/- 0.0054
Time of Perihelion: 2485934.3802 +/- 22.3
Perihelion: 40.51484100 +/- 0.0057
Aphelion: 49.96582788 +/- 0.0067
Period (y) 304.2965 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 25.97829759 +/- 0.0008
Ecliptic Y -39.64911799 +/- 0.0012
Ecliptic Z 0.46503940 +/- 0.0000
Ecliptic XDOT 0.00190074 +/- 0.0000
Ecliptic YDOT 0.00151405 +/- 0.0000
Ecliptic ZDOT -0.00019652 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.40407690 +/- 0.0011
Geocenter to KBO 46.39753148 +/- 0.0015
# Hcoef: 7.64
The following table shows the complete astrometric record for 00PG30. 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 (00PG30) followed by the observatory code and reference code for the source of the astrometry.
1999 07 18.42194 20 22 16.13 -18 50 09.2 24.1R 00PG30 568 Cd3309 1999 07 18.44903 20 22 16.00 -18 50 09.5 24.1R 00PG30 568 Cd3309 1999 07 18.47601 20 22 15.88 -18 50 09.9 23.9R 00PG30 568 Cd3309 2000 08 05.32068 20 25 28.74 -18 44 52.8 24.7R 00PG30 568 Cb8005 2000 08 05.36494 20 25 28.54 -18 44 53.6 00PG30 568 Cb8005 2000 08 05.41301 20 25 28.33 -18 44 54.6 00PG30 568 Cb8005 2000 08 06.31144 20 25 24.52 -18 45 08.5 24.2R 00PG30 568 Cb8005 2000 08 06.35730 20 25 24.32 -18 45 09.1 00PG30 568 Cb8005 2000 08 06.39871 20 25 24.12 -18 45 09.8 00PG30 568 Cb8005 2001 07 24.38191 20 30 56.75 -18 30 58.7 00PG30 568 Cd3309 2001 07 24.42286 20 30 56.58 -18 30 59.4 23.7R 00PG30 568 Cd3309 2001 07 24.46359 20 30 56.39 -18 31 00.1 23.4R 00PG30 568 Cd3309 2001 07 25.50785 20 30 51.82 -18 31 17.4 00PG30 568 Cd3309 2001 09 18.15341 20 27 25.36 -18 44 26.5 00PG30 675 Ce0222 2001 09 18.20484 20 27 25.25 -18 44 27.0 24.1R 00PG30 675 Ce0222 2001 09 19.17155 20 27 22.89 -18 44 36.7 00PG30 675 Ce0222 2002 06 07.51887 20 38 23.75 -18 08 42.2 00PG30 568 Cf8836 2002 06 07.57025 20 38 23.59 -18 08 42.7 00PG30 568 Cf8836 2020 09 21.126070 21 55 06.449 -14 05 57.19 23.9G 00PG30 G37 C~49Jp 2020 09 21.174850 21 55 06.261 -14 05 58.32 00PG30 G37 C~49Jp
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 -0.58
2 0.0001 0.00 0.11 0.00 -0.45
3 0.0001 0.00 0.10 0.00 -0.44
4 1.0511 0.00 -0.62 0.00 0.49
5 1.0512 0.00 -0.68 0.00 0.40
6 1.0513 0.00 -0.65 0.00 0.17
7 1.0538 0.00 0.51 0.00 0.59
8 1.0539 0.00 0.53 0.00 0.73
9 1.0540 0.00 0.27 0.00 0.69
10 2.0177 0.00 -0.34 0.00 -0.19
11 2.0178 0.00 -0.14 0.00 -0.21
12 2.0179 0.00 -0.26 0.00 -0.24
13 2.0208 0.00 0.11 0.00 -0.24
14 2.1704 0.00 0.03 0.00 -0.20
15 2.1705 0.00 0.33 0.00 -0.19
16 2.1732 0.00 0.15 0.00 -0.43
17 2.8887 0.00 0.42 0.00 0.05
18 2.8888 0.00 -0.03 0.00 0.05
19 21.1792 0.00 0.08 0.00 0.11
20 21.1793 0.00 -0.11 0.00 -0.11
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.
00PG30 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.166 45.166 45.166 ecceobj 0.105 0.105 0.105 incobj 4.628 4.628 4.628 qmin 39.353 39.373 39.349 qmax 51.211 51.276 51.174 amean 45.156 45.157 45.156 amin 44.781 44.785 44.788 amax 45.553 45.582 45.557 emean 0.110 0.110 0.110 emin 0.095 0.095 0.095 emax 0.124 0.125 0.124 imean 3.570 3.570 3.570 imin 2.985 2.985 2.986 imax 4.192 4.193 4.192 excite_mean 0.126 0.126 0.126 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 175.5 175.5 175.5 kozaiamp 180.0 180.0 180.0