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: 99RX214
# Created Wed Dec 25 02:07:59 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 30 observations of 30
# Arc: 17.88y
# First observation: 1999/09/06
# Last observation: 2017/07/24
# Chi-squared of fit: 62.10 DOF: 54 RMS: 0.25
# Min/Max residuals: -0.55 0.53
# Exact a, adot, b, bdot, g, gdot:
1.583631E-05 2.056385E-02 1.325253E-06 1.734773E-03 2.239691E-02 3.777453E-03
# Covariance matrix:
9.5417E-14 -1.5773E-14 6.4992E-16 -7.8756E-16 4.1716E-14 -3.1005E-14
-1.5773E-14 1.8757E-14 -1.2090E-15 1.4740E-15 2.1873E-14 5.6987E-14
6.4992E-16 -1.2090E-15 7.6652E-14 -6.2981E-15 -1.5994E-15 -3.9773E-15
-7.8756E-16 1.4740E-15 -6.2981E-15 1.5567E-15 1.9690E-15 4.8491E-15
4.1716E-14 2.1873E-14 -1.5994E-15 1.9690E-15 2.4121E-13 7.3918E-14
-3.1005E-14 5.6987E-14 -3.9773E-15 4.8491E-15 7.3918E-14 1.8746E-13
# lat0 lon0 xBary yBary zBary JD0
0.157961 6.116986 0.390469 0.002309 -0.922000 2451427.920753
# Heliocentric elements and errors
Epoch: 2451428.5000 = 1999/09/07
Mean Anomaly: 73.74213 +/- 0.015
Argument of Peri: 268.49956 +/- 0.021
Long of Asc Node: 3.78585 +/- 0.000
Inclination: 4.80424 +/- 0.000
Eccentricity: 0.17096826 +/- 0.0000
Semi-Major Axis: 46.48396009 +/- 0.0039
Time of Perihelion: 2427716.6039 +/- 5.6
Perihelion: 38.53667815 +/- 0.0034
Aphelion: 54.43124203 +/- 0.0047
Period (y) 316.9297 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.36061528 +/- 0.0010
Ecliptic Y 4.47030561 +/- 0.0001
Ecliptic Z 0.12317110 +/- 0.0000
Ecliptic XDOT 0.00018662 +/- 0.0000
Ecliptic YDOT 0.00255693 +/- 0.0000
Ecliptic ZDOT 0.00021340 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.58041221 +/- 0.0010
Geocenter to KBO 44.64892947 +/- 0.0010
# Hcoef: 6.78
The following table shows the complete astrometric record for 99RX214. 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 (99RX214) followed by the observatory code and reference code for the source of the astrometry.
1999 09 06.42001 00 22 12.72 +02 34 27.7 22.9R 99RX214 568 Ca8546 1999 09 06.46959 00 22 12.56 +02 34 26.6 22.4R 99RX214 568 Ca8546 1999 09 06.51027 00 22 12.40 +02 34 25.7 22.4R 99RX214 568 Ca8546 1999 09 09.50207 00 22 00.86 +02 33 14.6 22.9R 99RX214 568 Ca8546 1999 09 09.51367 00 22 00.82 +02 33 14.0 23.7R 99RX214 568 Ca8546 1999 09 10.49940 00 21 56.96 +02 32 50.7 23.1R 99RX214 568 Ca8546 1999 09 10.50984 00 21 56.94 +02 32 50.3 23.0R 99RX214 568 Ca8546 1999 10 08.45436 00 20 02.05 +02 20 58.0 23.5R 99RX214 568 Ca8546 1999 10 08.48128 00 20 01.95 +02 20 57.3 23.7R 99RX214 568 Ca8546 1999 11 10.34171 00 18 03.22 +02 08 40.2 23.1R 99RX214 568 Ca8546 1999 11 10.38791 00 18 03.10 +02 08 39.6 23.7R 99RX214 568 Ca8546 2000 08 08.35918 00 27 51.19 +03 16 43.2 23.4R 99RX214 809 Cc2286 2000 08 08.38930 00 27 51.12 +03 16 42.6 23.3R 99RX214 809 Cc2286 2000 08 08.42209 00 27 51.04 +03 16 42.3 23.1R 99RX214 809 Cc2286 2000 08 28.50431 00 26 52.61 +03 10 51.2 23.0R 99RX214 568 Cb9109 2000 08 28.55874 00 26 52.41 +03 10 50.1 23.0R 99RX214 568 Cb9109 2000 08 30.55416 00 26 45.45 +03 10 08.0 23.1R 99RX214 568 Cb9109 2000 08 30.56737 00 26 45.40 +03 10 07.7 23.1R 99RX214 568 Cb9109 2000 12 27.22491 00 21 14.447 +02 36 16.69 22.5R 99RX214 568 Cl2529 2000 12 28.23425 00 21 15.169 +02 36 21.84 22.5R 99RX214 568 Cl2529 2007 09 18.43604 00 54 04.86 +06 47 45.7 99RX214 675 Cy6666 2007 09 18.46473 00 54 04.73 +06 47 45.5 99RX214 675 Cy6666 2008 10 09.403958 00 56 36.58 +07 09 56.3 99RX214 645 C~1h5B 2008 10 09.404792 00 56 36.58 +07 09 56.3 99RX214 645 C~1h5B 2008 10 09.407269 00 56 36.56 +07 09 56.3 99RX214 645 C~1h5B 2013 10 05.38494 01 16 39.84 +09 41 21.1 22.8R 99RX214 695 C~0zdB 2013 10 05.44872 01 16 39.58 +09 41 19.7 99RX214 695 C~0zdB 2013 10 06.39203 01 16 35.75 +09 40 57.6 99RX214 695 C~0zdB 2017 07 24.386279 01 34 57.67 +11 47 24.2 99RX214 W84 C~3i92 2017 07 24.392130 01 34 57.65 +11 47 24.5 99RX214 W84 C~3i92
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 -0.24 0.00 -0.13
2 0.0001 0.00 0.24 0.00 -0.07
3 0.0002 0.00 0.20 0.00 -0.02
4 0.0084 0.00 -0.21 0.00 -0.19
5 0.0085 0.00 -0.12 0.00 -0.51
6 0.0112 0.00 -0.26 0.00 -0.05
7 0.0112 0.00 0.07 0.00 -0.20
8 0.0877 0.00 0.02 0.00 -0.06
9 0.0878 0.00 0.21 0.00 -0.07
10 0.1777 0.00 -0.04 0.00 -0.10
11 0.1779 0.00 0.20 0.00 0.11
12 0.9225 0.00 -0.11 0.00 0.53
13 0.9226 0.00 -0.08 0.00 0.34
14 0.9227 0.00 -0.11 0.00 0.49
15 0.9776 0.00 0.20 0.00 -0.15
16 0.9778 0.00 0.06 0.00 -0.11
17 0.9833 0.00 -0.22 0.00 -0.00
18 0.9833 0.00 -0.26 0.00 -0.02
19 1.3082 0.00 -0.03 0.00 0.47
20 1.3109 0.00 -0.11 0.00 0.30
21 8.0329 0.00 0.47 0.00 -0.54
22 8.0330 0.00 0.21 0.00 -0.08
23 9.0924 0.00 0.23 0.00 -0.25
24 9.0924 0.00 0.28 0.00 -0.23
25 9.0924 0.00 0.13 0.00 -0.16
26 14.0807 0.00 -0.55 0.00 0.22
27 14.0808 0.00 -0.50 0.00 0.31
28 14.0834 0.00 -0.31 0.00 0.13
29 17.8808 0.00 0.40 0.00 -0.15
30 17.8808 0.00 0.09 0.00 0.13
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.
99RX214 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.446 46.446 46.446 ecceobj 0.170 0.170 0.170 incobj 4.807 4.807 4.807 qmin 37.728 37.722 37.668 qmax 55.053 55.050 55.153 amean 46.166 46.167 46.176 amin 45.769 45.765 45.763 amax 46.613 46.625 46.641 emean 0.167 0.167 0.167 emin 0.152 0.152 0.152 emax 0.181 0.181 0.183 imean 5.249 5.246 5.247 imin 4.550 4.551 4.551 imax 5.839 5.838 5.838 excite_mean 0.190 0.190 0.190 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 177.9 178.1 177.8 kozaiamp 180.0 180.0 179.9