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: 99RU214 # Created Fri Nov 22 02:08:02 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 21.92y # First observation: 1999/09/06 # Last observation: 2021/08/08 # Chi-squared of fit: 15.41 DOF: 40 RMS: 0.14 # Min/Max residuals: -0.24 0.44 # Exact a, adot, b, bdot, g, gdot: 1.557877E-05 2.204336E-02 -6.149369E-07 -1.636124E-03 2.258914E-02 6.465719E-03 # Covariance matrix: 1.3898E-13 -2.7447E-14 -2.0037E-15 1.3791E-15 4.4791E-14 -4.4010E-14 -2.7447E-14 1.5809E-14 1.4065E-15 -1.0161E-15 -1.5770E-14 3.2443E-14 -2.0037E-15 1.4065E-15 1.0767E-13 -7.0741E-15 -1.6844E-15 3.1357E-15 1.3791E-15 -1.0161E-15 -7.0741E-15 1.3866E-15 6.0854E-16 -2.3144E-15 4.4791E-14 -1.5770E-14 -1.6844E-15 6.0854E-16 2.1723E-13 -1.9221E-14 -4.4010E-14 3.2443E-14 3.1357E-15 -2.3144E-15 -1.9221E-14 7.3910E-14 # lat0 lon0 xBary yBary zBary JD0 -0.198928 -40.028087 -0.391925 -0.003442 -0.921409 2451427.769003 # Heliocentric elements and errors Epoch: 2451428.5000 = 1999/09/07 Mean Anomaly: 39.67481 +/- 0.008 Argument of Peri: 108.63386 +/- 0.010 Long of Asc Node: 137.85681 +/- 0.000 Inclination: 4.25315 +/- 0.000 Eccentricity: 0.33962480 +/- 0.0000 Semi-Major Axis: 55.87423597 +/- 0.0066 Time of Perihelion: 2434616.1591 +/- 4.6 Perihelion: 36.89795970 +/- 0.0050 Aphelion: 74.85051225 +/- 0.0092 Period (y) 417.6626 +/- 0.07 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.86367356 +/- 0.0007 Ecliptic Y -28.76216318 +/- 0.0006 Ecliptic Z -0.15369928 +/- 0.0000 Ecliptic XDOT 0.00231381 +/- 0.0000 Ecliptic YDOT 0.00155055 +/- 0.0000 Ecliptic ZDOT -0.00020096 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.19671428 +/- 0.0007 Geocenter to KBO 44.26889048 +/- 0.0009 # Hcoef: 6.96
The following table shows the complete astrometric record for 99RU214. 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 (99RU214) followed by the observatory code and reference code for the source of the astrometry.
1999 09 06.26826 21 29 47.07 -15 00 42.8 22.7R 99RU214 568 Ca7817 1999 09 06.31376 21 29 46.89 -15 00 43.6 23.3R 99RU214 568 Ca7817 1999 09 06.36014 21 29 46.70 -15 00 44.3 23.5R 99RU214 568 Ca7817 1999 09 10.25075 21 29 31.76 -15 01 59.7 23.6R 99RU214 568 Ca7817 1999 09 10.26235 21 29 31.70 -15 02 00.0 23.7R 99RU214 568 Ca7817 1999 10 08.29326 21 28 07.47 -15 09 05.6 24.1R 99RU214 568 Ca7817 1999 10 08.35743 21 28 07.35 -15 09 06.2 24.1R 99RU214 568 Ca7817 1999 10 09.24343 21 28 05.54 -15 09 15.5 24.1R 99RU214 568 Ca7817 1999 11 11.23247 21 27 43.95 -15 11 20.8 23.4R 99RU214 568 Ca7817 1999 11 12.22191 21 27 44.77 -15 11 17.4 23.5R 99RU214 568 Ca7817 1999 11 13.21659 21 27 45.68 -15 11 13.8 23.2R 99RU214 568 Ca7817 2000 09 21.25257 21 33 53.27 -14 46 52.8 23.8R 99RU214 695 Cr3548 2006 04 26.40309 22 07 17.13 -12 23 26.7 22.7R 99RU214 807 Cr3548 2006 04 27.41524 22 07 19.84 -12 23 13.8 99RU214 807 Cr3548 2006 04 28.40535 22 07 22.38 -12 23 01.8 99RU214 807 Cr3548 2006 06 21.31578 22 07 46.71 -12 22 30.9 23.5R 99RU214 304 Cr4804 2006 06 21.35897 22 07 46.64 -12 22 31.8 99RU214 304 Cr4804 2008 10 23.21240 22 10 01.01 -12 22 28.1 22.6r 99RU214 695 C~0gLs 2008 10 24.12315 22 09 59.54 -12 22 35.9 22.5r 99RU214 695 C~0gLs 2008 10 24.19408 22 09 59.41 -12 22 36.4 22.3r 99RU214 695 C~0gLs 2021 08 08.323970 23 06 19.337 -07 49 31.95 24.1G 99RU214 G37 C~4xMU 2021 08 08.370740 23 06 19.186 -07 49 33.12 99RU214 G37 C~4xMU 2021 08 08.419000 23 06 19.039 -07 49 34.02 99RU214 G37 C~4xMU
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 0.01 0.00 -0.11
2 0.0001 0.00 0.03 0.00 -0.01
3 0.0003 0.00 -0.04 0.00 0.21
4 0.0109 0.00 0.06 0.00 0.03
5 0.0109 0.00 -0.17 0.00 -0.05
6 0.0877 0.00 -0.15 0.00 -0.11
7 0.0879 0.00 0.14 0.00 -0.03
8 0.0903 0.00 0.17 0.00 0.01
9 0.1806 0.00 0.00 0.00 -0.12
10 0.1833 0.00 -0.10 0.00 -0.02
11 0.1860 0.00 -0.24 0.00 -0.17
12 1.0431 0.00 0.43 0.00 -0.02
13 6.6369 0.00 -0.10 0.00 0.07
14 6.6397 0.00 0.13 0.00 0.04
15 6.6424 0.00 -0.24 0.00 -0.21
16 6.7900 0.00 -0.02 0.00 0.44
17 6.7901 0.00 0.03 0.00 0.01
18 9.1306 0.00 0.14 0.00 0.07
19 9.1331 0.00 -0.01 0.00 0.04
20 9.1333 0.00 -0.21 0.00 0.13
21 21.9221 0.00 0.01 0.00 -0.01
22 21.9223 0.00 -0.02 0.00 -0.18
23 21.9224 0.00 0.08 0.00 -0.05
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.
99RU214 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE axisobj 55.780 55.781 55.780 ecceobj 0.339 0.339 0.339 incobj 4.255 4.255 4.255 qmin 36.148 36.126 36.150 qmax 76.374 76.342 76.317 amean 55.463 55.463 55.464 amin 54.541 54.546 54.555 amax 56.531 56.507 56.532 emean 0.336 0.336 0.336 emin 0.320 0.321 0.322 emax 0.351 0.351 0.350 imean 3.272 3.204 3.245 imin 2.951 2.838 2.944 imax 3.674 3.565 3.610 excite_mean 0.340 0.340 0.341 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.095 libcent 0 178.7 179.6 180.5 libamp 0 169.9 167.0 166.1 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 183.1 180.0 178.2 kozaiamp 179.9 180.0 179.9