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: 00PC30 # Created Wed Dec 25 02:08:04 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 24 observations of 24 # Arc: 20.13y # First observation: 1999/07/20 # Last observation: 2019/09/04 # Chi-squared of fit: 56.46 DOF: 42 RMS: 0.27 # Min/Max residuals: -0.64 0.58 # Exact a, adot, b, bdot, g, gdot: 1.606495E-05 2.217302E-02 -8.268793E-07 -2.088933E-04 2.344970E-02 7.788960E-04 # Covariance matrix: 2.4282E-13 -6.4084E-14 -9.9876E-16 5.9716E-16 1.8696E-13 -1.3258E-13 -6.4084E-14 4.0964E-14 5.4007E-16 -3.8569E-16 -5.6470E-15 8.5706E-14 -9.9876E-16 5.4007E-16 8.4410E-14 -6.7059E-15 -5.7420E-16 1.2028E-15 5.9716E-16 -3.8569E-16 -6.7059E-15 1.8728E-15 1.3049E-16 -8.4835E-16 1.8696E-13 -5.6470E-15 -5.7420E-16 1.3049E-16 4.3105E-13 -2.8711E-14 -1.3258E-13 8.5706E-14 1.2028E-15 -8.4835E-16 -2.8711E-14 1.8851E-13 # lat0 lon0 xBary yBary zBary JD0 -1.150054 -43.800830 0.335101 -0.019445 -0.956761 2451379.971213 # Heliocentric elements and errors Epoch: 2451380.5000 = 1999/07/21 Mean Anomaly: 107.71302 +/- 0.197 Argument of Peri: 133.41674 +/- 0.185 Long of Asc Node: 71.86593 +/- 0.005 Inclination: 1.25233 +/- 0.000 Eccentricity: 0.02572455 +/- 0.0000 Semi-Major Axis: 43.24306426 +/- 0.0048 Time of Perihelion: 2420303.5190 +/- 57.1 Perihelion: 42.13065571 +/- 0.0049 Aphelion: 44.35547282 +/- 0.0051 Period (y) 284.3694 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.23954505 +/- 0.0009 Ecliptic Y -30.41283517 +/- 0.0008 Ecliptic Z -0.85592714 +/- 0.0000 Ecliptic XDOT 0.00185367 +/- 0.0000 Ecliptic YDOT 0.00181438 +/- 0.0000 Ecliptic ZDOT -0.00002616 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.60712074 +/- 0.0008 Geocenter to KBO 42.64447465 +/- 0.0012 # Hcoef: 7.48
The following table shows the complete astrometric record for 00PC30. 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 (00PC30) followed by the observatory code and reference code for the source of the astrometry.
1999 07 20.47047 21 16 03.85 -17 04 42.7 23.7R 00PC30 568 Cd3309 1999 07 20.49830 21 16 03.74 -17 04 42.9 00PC30 568 Cd3309 1999 07 20.52528 21 16 03.62 -17 04 43.7 00PC30 568 Cd3309 2000 08 05.46359 21 19 53.71 -16 48 08.2 00PC30 568 Cb8005 2000 08 05.50507 21 19 53.53 -16 48 09.2 23.3R 00PC30 568 Cb8005 2000 08 05.54662 21 19 53.34 -16 48 10.0 00PC30 568 Cb8005 2000 08 06.45166 21 19 49.16 -16 48 29.2 23.7R 00PC30 568 Cb8005 2000 08 06.49431 21 19 48.97 -16 48 30.2 23.2R 00PC30 568 Cb8005 2000 08 06.53623 21 19 48.78 -16 48 30.9 23.4R 00PC30 568 Cb8005 2000 09 23.32603 21 16 31.76 -17 03 04.6 24.2R 00PC30 568 Cc0967 2000 09 23.37426 21 16 31.61 -17 03 05.3 23.9R 00PC30 568 Cc0967 2000 09 23.40063 21 16 31.53 -17 03 05.6 23.8R 00PC30 568 Cc0967 2000 09 24.25800 21 16 28.91 -17 03 17.2 24.0R 00PC30 568 Cc0967 2000 09 24.30741 21 16 28.75 -17 03 17.9 24.0R 00PC30 568 Cc0967 2000 09 24.36601 21 16 28.56 -17 03 18.8 24.1R 00PC30 568 Cc0967 2001 07 24.50248 21 25 51.56 -16 21 00.2 22.9R 00PC30 568 Cd3309 2001 07 24.55348 21 25 51.33 -16 21 01.3 23.0R 00PC30 568 Cd3309 2001 07 24.59528 21 25 51.14 -16 21 02.2 23.2R 00PC30 568 Cd3309 2001 07 25.60612 21 25 46.73 -16 21 24.1 00PC30 568 Cd3309 2005 08 08.09890 21 44 42.03 -14 51 17.8 22.1R 00PC30 807 Co3360 2005 08 08.21556 21 44 41.51 -14 51 20.6 00PC30 807 Co3361 2005 08 09.10368 21 44 37.56 -14 51 40.9 00PC30 807 Co3361 2019 09 04.306050 22 49 53.634 -08 49 20.11 24.0G 00PC30 G37 C~3cUl 2019 09 04.394220 22 49 53.246 -08 49 22.59 00PC30 G37 C~3cUl
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 -0.27 0.00 0.07
2 0.0001 0.00 -0.09 0.00 0.43
3 0.0002 0.00 -0.11 0.00 0.17
4 1.0458 0.00 0.05 0.00 -0.02
5 1.0460 0.00 0.27 0.00 -0.13
6 1.0461 0.00 0.33 0.00 -0.05
7 1.0485 0.00 0.02 0.00 0.08
8 1.0487 0.00 0.17 0.00 -0.02
9 1.0488 0.00 0.26 0.00 0.17
10 1.1796 0.00 0.24 0.00 0.58
11 1.1798 0.00 0.26 0.00 0.49
12 1.1798 0.00 0.30 0.00 0.52
13 1.1822 0.00 -0.26 0.00 -0.31
14 1.1823 0.00 -0.38 0.00 -0.40
15 1.1825 0.00 -0.53 0.00 -0.57
16 2.0124 0.00 0.01 0.00 -0.04
17 2.0125 0.00 -0.05 0.00 -0.07
18 2.0127 0.00 -0.13 0.00 -0.10
19 2.0154 0.00 -0.20 0.00 -0.64
20 6.0524 0.00 -0.12 0.00 -0.07
21 6.0527 0.00 0.02 0.00 -0.17
22 6.0551 0.00 0.31 0.00 -0.02
23 20.1255 0.00 -0.04 0.00 0.16
24 20.1257 0.00 -0.04 0.00 -0.01
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.
00PC30 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.173 43.173 43.173 ecceobj 0.026 0.026 0.026 incobj 1.252 1.252 1.252 qmin 41.046 41.087 40.999 qmax 45.436 45.351 45.367 amean 43.128 43.127 43.126 amin 42.803 42.802 42.792 amax 43.467 43.459 43.458 emean 0.026 0.025 0.025 emin 0.007 0.007 0.007 emax 0.045 0.044 0.045 imean 1.030 1.029 1.028 imin 0.124 0.137 0.136 imax 1.559 1.550 1.547 excite_mean 0.033 0.033 0.033 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 167.8 170.6 166.0 kozaiamp 179.9 180.0 180.0