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: 99RV215
# Created Sun Dec 22 02:08:05 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 16 observations of 16
# Arc: 15.12y
# First observation: 1999/09/07
# Last observation: 2014/10/22
# Chi-squared of fit: 38.01 DOF: 26 RMS: 0.27
# Min/Max residuals: -0.45 0.62
# Exact a, adot, b, bdot, g, gdot:
1.637805E-05 2.988127E-02 6.457316E-06 1.085668E-02 2.807709E-02 3.775259E-04
# Covariance matrix:
1.9251E-13 -1.2098E-13 1.8418E-14 -4.3996E-14 8.6987E-14 -2.4324E-13
-1.2098E-13 4.3660E-13 -6.1541E-14 1.6393E-13 1.4905E-13 9.1514E-13
1.8418E-14 -6.1541E-14 1.2090E-13 -3.1872E-14 -1.5172E-14 -1.3024E-13
-4.3996E-14 1.6393E-13 -3.1872E-14 6.5324E-14 5.2820E-14 3.4635E-13
8.6987E-14 1.4905E-13 -1.5172E-14 5.2820E-14 3.5925E-13 3.0071E-13
-2.4324E-13 9.1514E-13 -1.3024E-13 3.4635E-13 3.0071E-13 1.9333E-12
# lat0 lon0 xBary yBary zBary JD0
9.339201 16.098495 0.528099 0.137764 -0.839037 2451429.035503
# Heliocentric elements and errors
Epoch: 2451428.5000 = 1999/09/07
Mean Anomaly: 359.14739 +/- 0.010
Argument of Peri: 26.36715 +/- 0.016
Long of Asc Node: 351.78365 +/- 0.000
Inclination: 21.94873 +/- 0.000
Eccentricity: 0.19124173 +/- 0.0001
Semi-Major Axis: 45.08846432 +/- 0.0049
Time of Perihelion: 2451690.4067 +/- 18.3
Perihelion: 36.46566821 +/- 0.0052
Aphelion: 53.71126043 +/- 0.0067
Period (y) 302.7655 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.73686505 +/- 0.0007
Ecliptic Y 9.47590730 +/- 0.0002
Ecliptic Z 5.77999642 +/- 0.0001
Ecliptic XDOT -0.00094221 +/- 0.0000
Ecliptic YDOT 0.00277028 +/- 0.0000
Ecliptic ZDOT 0.00105066 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.46712407 +/- 0.0007
Geocenter to KBO 35.61625480 +/- 0.0008
# Hcoef: 8.39
The following table shows the complete astrometric record for 99RV215. 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 (99RV215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 07.53476 00 44 30.77 +14 56 06.5 24.0R 99RV215 568 Ca9937 1999 09 07.58118 00 44 30.56 +14 56 06.1 24.3R 99RV215 568 Ca9937 1999 09 07.61487 00 44 30.39 +14 56 05.4 24.2R 99RV215 568 Ca9937 1999 09 10.57081 00 44 16.29 +14 55 22.2 24.0R 99RV215 568 Ca9937 1999 09 10.58125 00 44 16.20 +14 55 22.6 24.4R 99RV215 568 Ca9937 1999 10 09.47089 00 41 43.95 +14 44 39.2 23.4R 99RV215 568 Ca9937 1999 10 09.51708 00 41 43.69 +14 44 38.0 23.1R 99RV215 568 Ca9937 1999 11 11.40176 00 39 02.09 +14 28 25.4 23.5R 99RV215 568 Ca9937 1999 11 11.45398 00 39 01.89 +14 28 24.0 23.0R 99RV215 568 Ca9937 2000 08 28.58291 00 50 43.52 +16 12 18.9 23.5R 99RV215 568 Cb9109 2000 08 28.61419 00 50 43.38 +16 12 18.6 23.4R 99RV215 568 Cb9109 2000 08 30.59770 00 50 35.14 +16 12 05.2 23.4R 99RV215 568 Cb9109 2000 12 27.23846 00 42 52.170 +15 26 32.73 99RV215 568 Cl2529 2000 12 28.24804 00 42 52.481 +15 26 22.57 99RV215 568 Cl2529 2014 10 22.33334 02 12 15.77 +31 57 22.9 23.8R 99RV215 G37 C~1Bx9 2014 10 22.42021 02 12 15.23 +31 57 21.3 99RV215 G37 C~1Bx9
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 0.12 0.00 -0.03
2 0.0001 0.00 0.31 0.00 0.22
3 0.0002 0.00 0.18 0.00 -0.01
4 0.0083 0.00 0.62 0.00 -0.01
5 0.0083 0.00 0.05 0.00 0.56
6 0.0874 0.00 -0.37 0.00 -0.33
7 0.0876 0.00 -0.45 0.00 -0.24
8 0.1776 0.00 -0.11 0.00 -0.42
9 0.1777 0.00 0.14 0.00 -0.29
10 0.9748 0.00 -0.16 0.00 -0.13
11 0.9749 0.00 -0.30 0.00 -0.23
12 0.9803 0.00 -0.36 0.00 0.38
13 1.3051 0.00 0.08 0.00 0.30
14 1.3079 0.00 0.10 0.00 0.22
15 15.1233 0.00 0.00 0.00 -0.02
16 15.1236 0.00 0.04 0.00 -0.03
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.
99RV215 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.071 45.071 45.071 ecceobj 0.191 0.191 0.191 incobj 21.956 21.956 21.956 qmin 35.292 35.292 35.292 qmax 54.520 54.521 54.515 amean 44.694 44.694 44.694 amin 44.303 44.303 44.303 amax 45.141 45.141 45.141 emean 0.190 0.190 0.190 emin 0.171 0.171 0.171 emax 0.209 0.209 0.209 imean 22.374 22.374 22.374 imin 21.785 21.785 21.785 imax 22.931 22.931 22.931 excite_mean 0.425 0.425 0.425 fracstop 1.000 1.000 1.000 cjmean 2.885 2.885 2.885 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 171.6 171.6 171.6 kozaiamp 180.0 180.0 180.0