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: 99RB215
# Created Fri Nov 22 02:08:02 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 23 observations of 23
# Arc: 12.14y
# First observation: 1999/09/06
# Last observation: 2011/10/26
# Chi-squared of fit: 26.73 DOF: 40 RMS: 0.19
# Min/Max residuals: -0.30 0.55
# Exact a, adot, b, bdot, g, gdot:
2.032998E-05 4.157994E-02 3.113463E-06 5.738484E-03 3.257109E-02 3.101101E-03
# Covariance matrix:
2.3040E-13 7.2879E-15 -4.7234E-16 1.7141E-15 2.1609E-13 2.4904E-14
7.2879E-15 8.8207E-14 -6.0769E-15 1.1850E-14 1.2262E-13 1.7151E-13
-4.7234E-16 -6.0769E-15 1.2126E-13 -1.2596E-14 -7.1470E-15 -1.2319E-14
1.7141E-15 1.1850E-14 -1.2596E-14 4.4855E-15 1.5357E-14 2.3922E-14
2.1609E-13 1.2262E-13 -7.1470E-15 1.5357E-14 5.1432E-13 2.2244E-13
2.4904E-14 1.7151E-13 -1.2319E-14 2.3922E-14 2.2244E-13 3.4622E-13
# lat0 lon0 xBary yBary zBary JD0
0.216817 7.267729 0.406985 0.003241 -0.914776 2451428.041393
# Heliocentric elements and errors
Epoch: 2451428.5000 = 1999/09/07
Mean Anomaly: 6.06696 +/- 0.002
Argument of Peri: 348.20384 +/- 0.004
Long of Asc Node: 5.00284 +/- 0.000
Inclination: 7.83885 +/- 0.000
Eccentricity: 0.34874843 +/- 0.0001
Semi-Major Axis: 48.22504009 +/- 0.0067
Time of Perihelion: 2449367.0344 +/- 0.9
Perihelion: 31.40663284 +/- 0.0057
Aphelion: 65.04344734 +/- 0.0097
Period (y) 334.9015 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 31.42172542 +/- 0.0007
Ecliptic Y 3.59846729 +/- 0.0001
Ecliptic Z 0.11628260 +/- 0.0000
Ecliptic XDOT -0.00018946 +/- 0.0000
Ecliptic YDOT 0.00350810 +/- 0.0000
Ecliptic ZDOT 0.00048341 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.62728160 +/- 0.0007
Geocenter to KBO 30.70206131 +/- 0.0007
# Hcoef: 9.30
The following table shows the complete astrometric record for 99RB215. 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 (99RB215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 06.54065 00 26 21.09 +03 05 00.9 24.0R 99RB215 568 Ca8546 1999 09 06.57078 00 26 20.93 +03 04 59.9 24.3R 99RB215 568 Ca8546 1999 09 06.60771 00 26 20.72 +03 04 58.9 23.6R 99RB215 568 Ca8546 1999 09 09.55351 00 26 05.44 +03 03 31.2 24.1R 99RB215 568 Ca8546 1999 09 09.56510 00 26 05.37 +03 03 30.9 23.8R 99RB215 568 Ca8546 1999 09 09.57670 00 26 05.30 +03 03 30.3 23.8R 99RB215 568 Ca8546 1999 10 10.35425 00 23 12.60 +02 46 46.4 24.2R 99RB215 568 Ca8546 1999 10 10.39580 00 23 12.40 +02 46 45.5 23.8R 99RB215 568 Ca8546 1999 10 10.45692 00 23 12.06 +02 46 43.2 23.7R 99RB215 568 Ca8546 1999 10 11.43385 00 23 06.55 +02 46 11.7 24.3R 99RB215 568 Ca8546 1999 10 11.48545 00 23 06.26 +02 46 09.2 24.2R 99RB215 568 Ca8546 1999 11 11.36506 00 20 36.71 +02 31 43.5 24.0R 99RB215 568 Ca8546 1999 11 11.41458 00 20 36.51 +02 31 42.4 24.3R 99RB215 568 Ca8546 2000 12 27.21111 00 27 35.328 +03 39 47.28 24.3R 99RB215 568 Cl2513 2000 12 28.21603 00 27 36.515 +03 39 56.92 24.3R 99RB215 568 Cl2513 2003 11 21.14863 00 52 35.78 +07 19 44.7 23.5R 99RB215 695 Cl2513 2003 11 21.19689 00 52 35.59 +07 19 43.7 99RB215 695 Cl2513 2008 10 24.32367 01 35 11.91 +13 12 03.1 23.6r 99RB215 695 C~0gLs 2008 10 24.39401 01 35 11.51 +13 12 00.9 24.0r 99RB215 695 C~0gLs 2011 10 25.35943 01 59 14.78 +16 16 48.5 24.7r 99RB215 568 C~31LF 2011 10 26.31804 01 59 09.17 +16 16 21.3 24.2r 99RB215 568 C~31LF 2011 10 26.36119 01 59 08.92 +16 16 20.1 24.5r 99RB215 568 C~31LF 2011 10 26.41881 01 59 08.57 +16 16 18.5 24.6r 99RB215 568 C~31LF
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 -0.00 0.00 -0.07
2 0.0001 0.00 -0.04 0.00 -0.19
3 0.0002 0.00 -0.30 0.00 -0.11
4 0.0082 0.00 0.16 0.00 -0.04
5 0.0083 0.00 0.05 0.00 0.01
6 0.0083 0.00 -0.07 0.00 -0.24
7 0.0926 0.00 -0.20 0.00 -0.07
8 0.0927 0.00 0.37 0.00 0.39
9 0.0929 0.00 0.51 0.00 0.10
10 0.0955 0.00 -0.16 0.00 0.55
11 0.0957 0.00 -0.11 0.00 -0.26
12 0.1802 0.00 0.02 0.00 -0.09
13 0.1804 0.00 -0.10 0.00 -0.13
14 1.3078 0.00 -0.06 0.00 -0.13
15 1.3105 0.00 0.04 0.00 -0.14
16 4.2070 0.00 -0.18 0.00 0.18
17 4.2071 0.00 -0.26 0.00 0.25
18 9.1329 0.00 -0.00 0.00 0.14
19 9.1331 0.00 0.19 0.00 0.11
20 12.1337 0.00 0.00 0.00 -0.04
21 12.1363 0.00 -0.04 0.00 -0.12
22 12.1364 0.00 0.06 0.00 -0.11
23 12.1366 0.00 -0.04 0.00 -0.08
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.
99RB215 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.179 48.179 48.179 ecceobj 0.348 0.348 0.348 incobj 7.841 7.841 7.841 qmin 29.830 30.292 30.273 qmax 66.688 66.299 66.283 amean 47.797 47.797 47.797 amin 47.196 47.168 47.235 amax 48.533 48.555 48.529 emean 0.346 0.343 0.343 emin 0.318 0.318 0.318 emax 0.376 0.367 0.366 imean 7.467 8.278 8.306 imin 3.562 6.358 6.178 imax 10.407 10.421 10.398 excite_mean 0.372 0.373 0.373 fracstop 1.000 1.000 1.000 cjmean 2.971 2.971 2.972 libcent 0 72.8 76.8 71.2 libamp 0 30.5 39.7 28.5 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 305.2 323.3 270.4 kozaiamp 40.8 35.9 85.9