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: 99CP153
# Created Wed Nov 27 02:07:57 2024
# Orbit generated from Bernstein formalism
# Fitting 11 observations of 11
# Arc: 1.16y
# First observation: 1999/02/10
# Last observation: 2000/04/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.018663 0.000000 0.000981 0.021348 0.000000
# Chi-squared of fit: 8.17 DOF: 16 RMS: 0.15
# Min/Max residuals: -0.29 0.23
# Exact a, adot, b, bdot, g, gdot:
1.351521E-05 1.882432E-02 6.738228E-07 9.933186E-04 2.148719E-02 3.233844E-05
# Covariance matrix:
4.9400E-13 2.1803E-12 -7.3324E-15 2.5704E-13 1.7891E-12 2.2855E-10
2.1803E-12 1.5380E-09 -6.0179E-12 1.9840E-10 5.8009E-10 1.7815E-07
-7.3324E-15 -6.0179E-12 3.3759E-13 -1.0568E-12 -2.2592E-12 -6.9797E-10
2.5704E-13 1.9840E-10 -1.0568E-12 2.6058E-11 7.4555E-11 2.3006E-08
1.7891E-12 5.8009E-10 -2.2592E-12 7.4555E-11 2.2306E-10 6.6933E-08
2.2855E-10 1.7815E-07 -6.9797E-10 2.3006E-08 6.6933E-08 2.0658E-05
# lat0 lon0 xBary yBary zBary JD0
0.231804 126.813201 -0.250489 0.003670 -0.961101 2451219.810133
# Heliocentric elements and errors
Epoch: 2451210.5000 = 1999/02/01
Mean Anomaly: 171.80896 +/- 162.443
Argument of Peri: 191.30419 +/- 162.878
Long of Asc Node: 122.81581 +/- 0.020
Inclination: 3.03240 +/- 0.014
Eccentricity: 0.07779494 +/- 0.0275
Semi-Major Axis: 44.09566621 +/- 0.1460
Time of Perihelion: 2507120.4008 +/- 48259.7
Perihelion: 40.66524647 +/- 1.2198
Aphelion: 47.52608595 +/- 1.2226
Period (y) 292.8209 +/- 1.45
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -28.65518493 +/- 0.0194
Ecliptic Y 37.87784459 +/- 0.0259
Ecliptic Z 0.18831376 +/- 0.0001
Ecliptic XDOT -0.00192411 +/- 0.0003
Ecliptic YDOT -0.00142533 +/- 0.0005
Ecliptic ZDOT 0.00012658 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.49617033 +/- 0.0237
Geocenter to KBO 46.53935446 +/- 0.0323
# Hcoef: 7.72
The following table shows the complete astrometric record for 99CP153. 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 (99CP153) followed by the observatory code and reference code for the source of the astrometry.
1999 02 10.30939 08 37 04.35 +18 47 38.5 24.1R 99CP153 568 Ca4208 1999 02 10.36111 08 37 04.09 +18 47 39.2 24.1R 99CP153 568 Ca4208 1999 02 10.40559 08 37 03.93 +18 47 40.0 24.1R 99CP153 568 Ca4208 1999 03 15.43167 08 35 01.07 +18 55 24.9 24.1R 99CP153 568 Ca4208 1999 03 15.48405 08 35 00.91 +18 55 25.6 24.1R 99CP153 568 Ca4208 2000 04 04.31494 08 38 43.84 +18 45 18.6 24.3R 99CP153 568 Cb1943 2000 04 04.39170 08 38 43.72 +18 45 18.6 24.2R 99CP153 568 Cb1943 2000 04 05.34047 08 38 42.51 +18 45 23.5 24.2R 99CP153 568 Cb1943 2000 04 06.32987 08 38 41.36 +18 45 28.1 24.3R 99CP153 568 Cb1943 2000 04 07.28424 08 38 40.30 +18 45 32.2 24.4R 99CP153 568 Cb1943 2000 04 07.35091 08 38 40.22 +18 45 32.7 24.3R 99CP153 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 0.07 0.00 0.01
2 0.0001 -3.75 -0.29 -0.25 -0.26
3 0.0003 -6.15 0.22 -0.05 -0.07
4 0.0907 -1811.01 0.09 13.41 0.11
5 0.0908 -1813.39 -0.09 13.52 0.23
6 1.1472 1402.42 0.15 221.99 0.16
7 1.1474 1400.77 0.04 221.56 -0.25
8 1.1500 1382.90 -0.17 221.93 -0.09
9 1.1527 1365.93 0.12 222.23 0.02
10 1.1553 1350.33 -0.01 222.37 -0.04
11 1.1555 1349.10 -0.13 222.57 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.
99CP153 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