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: 99CM119
# Created Sat Apr 20 01:09:49 2024
# Orbit generated from Bernstein formalism
# Fitting 11 observations of 11
# Arc: 1.15y
# First observation: 1999/02/11
# Last observation: 2000/04/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000017 0.023521 0.000000 0.001112 0.023878 0.000000
# Chi-squared of fit: 10.18 DOF: 16 RMS: 0.17
# Min/Max residuals: -0.33 0.34
# Exact a, adot, b, bdot, g, gdot:
1.620156E-05 2.390921E-02 8.403656E-07 1.131032E-03 2.428795E-02 1.856261E-03
# Covariance matrix:
7.0888E-13 1.8225E-11 -6.5398E-14 1.5638E-12 8.9463E-12 1.2594E-09
1.8225E-11 1.2342E-09 -4.5112E-12 1.0601E-10 5.5828E-10 8.5519E-08
-6.5398E-14 -4.5112E-12 2.9065E-13 -6.3923E-13 -2.0333E-12 -3.1299E-10
1.5638E-12 1.0601E-10 -6.3923E-13 9.5714E-12 4.7883E-11 7.3516E-09
8.9463E-12 5.5828E-10 -2.0333E-12 4.7883E-11 2.5479E-10 3.8618E-08
1.2594E-09 8.5519E-08 -3.1299E-10 7.3516E-09 3.8618E-08 5.9307E-06
# lat0 lon0 xBary yBary zBary JD0
0.439906 127.150606 -0.261556 0.007140 -0.958402 2451220.798563
# Heliocentric elements and errors
Epoch: 2451220.5000 = 1999/02/11
Mean Anomaly: 60.20330 +/- 11.584
Argument of Peri: 298.80064 +/- 21.570
Long of Asc Node: 118.49163 +/- 0.021
Inclination: 2.74461 +/- 0.006
Eccentricity: 0.09522685 +/- 0.0989
Semi-Major Axis: 43.88266963 +/- 0.7957
Time of Perihelion: 2433464.0644 +/- 3382.4
Perihelion: 39.70386110 +/- 4.3977
Aphelion: 48.06147816 +/- 4.4251
Period (y) 290.7018 +/- 7.91
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -25.64347432 +/- 0.0163
Ecliptic Y 33.42138391 +/- 0.0216
Ecliptic Z 0.31614441 +/- 0.0002
Ecliptic XDOT -0.00227564 +/- 0.0002
Ecliptic YDOT -0.00145263 +/- 0.0002
Ecliptic ZDOT 0.00012910 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.12691093 +/- 0.0198
Geocenter to KBO 41.17267935 +/- 0.0271
# Hcoef: 7.95
The following table shows the complete astrometric record for 99CM119. 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 (99CM119) followed by the observatory code and reference code for the source of the astrometry.
1999 02 11.29782 08 38 40.48 +18 54 36.2 23.3R 99CM119 568 Ca4178 1999 02 11.37992 08 38 40.10 +18 54 37.8 23.3R 99CM119 568 Ca4178 1999 02 18.41020 08 38 06.85 +18 56 44.2 23.3R 99CM119 568 Ca4178 1999 02 18.42182 08 38 06.80 +18 56 44.4 23.3R 99CM119 568 Ca4178 1999 04 09.37193 08 35 37.80 +19 06 02.5 24.2R 99CM119 568 Ca4506 1999 04 11.32803 08 35 36.16 +19 06 08.4 24.2R 99CM119 568 Ca4506 2000 04 05.36337 08 41 16.25 +18 49 00.4 24.3R 99CM119 568 Cb1943 2000 04 05.42402 08 41 16.18 +18 49 00.7 24.3R 99CM119 568 Cb1943 2000 04 06.34052 08 41 14.99 +18 49 05.4 24.3R 99CM119 568 Cb1943 2000 04 07.29527 08 41 13.84 +18 49 09.7 24.3R 99CM119 568 Cb1943 2000 04 07.36870 08 41 13.75 +18 49 10.1 24.3R 99CM119 568 Cb1943
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 -0.13 0.00 -0.02
2 0.0002 -5.62 0.18 0.18 0.13
3 0.0195 -494.04 -0.06 2.83 -0.21
4 0.0195 -494.77 -0.00 2.85 -0.20
5 0.1563 -2680.31 0.34 11.71 0.23
6 0.1616 -2704.29 -0.33 11.62 0.12
7 1.1473 2223.50 0.04 240.74 -0.21
8 1.1475 2222.47 0.23 240.77 -0.14
9 1.1500 2204.93 -0.02 240.97 0.07
10 1.1526 2188.04 -0.11 240.92 0.07
11 1.1528 2186.70 -0.14 240.97 0.17
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.
99CM119 quality flag:1 Type: CLASSICAL CENTAURR CLASSICAL axisobj 44.022 52.128 43.668 ecceobj 0.097 0.407 0.035 incobj 2.743 2.760 2.737 qmin 38.561 30.253 39.225 qmax 49.751 93.076 48.514 amean 44.008 56.653 43.705 amin 43.652 50.270 43.331 amax 44.398 62.159 44.147 emean 0.104 0.452 0.062 emin 0.085 0.385 0.023 emax 0.121 0.501 0.100 imean 1.986 1.915 1.724 imin 0.882 0.270 0.773 imax 2.864 4.403 2.506 excite_mean 0.110 0.453 0.069 fracstop 1.000 0.138 1.000 cjmean 3.087 2.976 3.092 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 175.3 196.2 177.2 kozaiamp 180.0 180.0 180.0