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: 99CA119
# Created Sat Apr 20 01:09:47 2024
# Orbit generated from Bernstein formalism
# Fitting 6 observations of 6
# Arc: 85.94d
# First observation: 1999/02/10
# Last observation: 1999/05/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.029270 0.000001 -0.000074 0.023898 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 6.69 DOF: 7 RMS: 0.19
# Min/Max residuals: -0.28 0.52
# Exact a, adot, b, bdot, g, gdot:
1.169019E-05 1.625868E-02 7.506785E-07 -8.670289E-05 2.163651E-02 -1.222630E-02
# Covariance matrix:
1.0809E-11 1.2143E-08 -6.0092E-14 1.1513E-11 2.1942E-09 -5.6905E-09
1.2143E-08 1.4381E-05 -7.1112E-11 1.3698E-08 2.5856E-06 -9.5860E-06
-6.0092E-14 -7.1112E-11 3.7468E-13 -1.6948E-12 -1.2787E-11 4.6875E-11
1.1513E-11 1.3698E-08 -1.6948E-12 3.3633E-11 2.4594E-09 -9.8671E-09
2.1942E-09 2.5856E-06 -1.2787E-11 2.4594E-09 4.6550E-07 -1.5797E-06
-5.6905E-09 -9.5860E-06 4.6875E-11 -9.8671E-09 -1.5797E-06 3.8721E-05
# lat0 lon0 xBary yBary zBary JD0
0.179764 166.906784 0.425305 0.002591 -0.897595 2451219.940773
# Heliocentric elements and errors
Epoch: 2451210.5000 = 1999/02/01
Mean Anomaly: 309.29657 +/- 42.205
Argument of Peri: 274.32756 +/- 37.200
Long of Asc Node: 16.01805 +/- 6.860
Inclination: 0.35681 +/- 0.075
Eccentricity: 0.61004673 +/- 0.1947
Semi-Major Axis: 49.46506890 +/- 25.7334
Time of Perihelion: 2469107.5379 +/- 5185.1
Perihelion: 19.28906561 +/- 13.9083
Aphelion: 79.64107219 +/- 42.5365
Period (y) 347.9014 +/- 271.49
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -45.78615220 +/- 1.4195
Ecliptic Y 11.08715525 +/- 0.3303
Ecliptic Z 0.14504558 +/- 0.0046
Ecliptic XDOT 0.00103909 +/- 0.0007
Ecliptic YDOT -0.00234531 +/- 0.0005
Ecliptic ZDOT -0.00001582 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.10963578 +/- 1.3818
Geocenter to KBO 46.21816733 +/- 1.4574
# Hcoef: 7.55
The following table shows the complete astrometric record for 99CA119. 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 (99CA119) followed by the observatory code and reference code for the source of the astrometry.
1999 02 10.44003 11 12 05.89 +05 20 08.1 23.9R 99CA119 568 Ca4013 1999 02 10.48103 11 12 05.73 +05 20 09.2 23.9R 99CA119 568 Ca4013 1999 02 12.58682 11 11 57.79 +05 21 00.0 23.9R 99CA119 568 Ca4013 1999 02 12.63508 11 11 57.57 +05 21 00.5 23.9R 99CA119 568 Ca4013 1999 05 07.30759 11 06 58.77 +05 52 08.9 24.1R 99CA119 568 Ca4843 1999 05 07.37667 11 06 58.65 +05 52 09.6 24.1R 99CA119 568 Ca4843
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 0.04 0.00 -0.17
2 0.0001 -2.63 -0.06 0.08 -0.07
3 0.0059 -131.63 0.11 0.74 0.52
4 0.0060 -134.85 -0.09 -0.08 -0.28
5 0.2351 -4971.83 -0.07 -9.29 -0.00
6 0.2353 -4973.76 0.07 -9.34 -0.00
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.
99CA119 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0