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: 00KL4 # Created Tue Apr 16 01:10:06 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 19.02y # First observation: 2000/05/28 # Last observation: 2019/06/06 # Chi-squared of fit: 51.89 DOF: 40 RMS: 0.27 # Min/Max residuals: -0.64 0.69 # Exact a, adot, b, bdot, g, gdot: 1.407808E-05 2.465339E-02 -2.309138E-06 -5.747992E-04 2.545323E-02 -1.178113E-03 # Covariance matrix: 1.1942E-13 -2.5863E-14 -6.2229E-15 6.8624E-16 -3.6427E-14 -3.8420E-14 -2.5863E-14 3.3431E-14 -2.0725E-15 -6.8246E-16 -1.4364E-14 6.7422E-14 -6.2229E-15 -2.0725E-15 1.0020E-13 -6.2356E-15 2.9278E-14 -6.1447E-15 6.8624E-16 -6.8246E-16 -6.2356E-15 1.2122E-15 -7.1059E-16 -1.3624E-15 -3.6427E-14 -1.4364E-14 2.9278E-14 -7.1059E-16 1.7755E-13 -4.0968E-14 -3.8420E-14 6.7422E-14 -6.1447E-15 -1.3624E-15 -4.0968E-14 1.4170E-13 # lat0 lon0 xBary yBary zBary JD0 21.797574 -118.279963 -0.093819 0.376731 -0.942621 2451692.777523 # Heliocentric elements and errors Epoch: 2451692.5000 = 2000/05/28 Mean Anomaly: 226.60908 +/- 0.034 Argument of Peri: 232.18767 +/- 0.027 Long of Asc Node: 148.01776 +/- 0.000 Inclination: 21.30770 +/- 0.000 Eccentricity: 0.06619839 +/- 0.0000 Semi-Major Axis: 38.39713125 +/- 0.0025 Time of Perihelion: 2483893.5753 +/- 9.7 Perihelion: 35.85530293 +/- 0.0028 Aphelion: 40.93895957 +/- 0.0031 Period (y) 237.9339 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -17.67450135 +/- 0.0003 Ecliptic Y -33.05962729 +/- 0.0005 Ecliptic Z 14.58861008 +/- 0.0002 Ecliptic XDOT 0.00237351 +/- 0.0000 Ecliptic YDOT -0.00116677 +/- 0.0000 Ecliptic ZDOT -0.00010433 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.22631868 +/- 0.0005 Geocenter to KBO 39.28780386 +/- 0.0007 # Hcoef: 7.54
The following table shows the complete astrometric record for 00KL4. 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 (00KL4) followed by the observatory code and reference code for the source of the astrometry.
2000 05 28.27678 16 15 35.71 +00 53 03.5 23.3R 00KL4 695 Cb5931 2000 05 28.33640 16 15 35.40 +00 53 04.5 23.2R 00KL4 695 Cb5931 2000 05 28.39559 16 15 35.08 +00 53 04.6 00KL4 695 Cb5931 2000 05 29.20730 16 15 31.10 +00 53 13.6 00KL4 695 Cb5931 2000 05 29.24983 16 15 30.88 +00 53 13.7 23.3R 00KL4 695 Cb5931 2000 05 29.28371 16 15 30.71 +00 53 14.5 23.4R 00KL4 695 Cb5931 2000 06 24.98579 16 13 25.88 +00 54 16.9 00KL4 950 Cb7067 2000 06 25.01903 16 13 25.73 +00 54 16.3 00KL4 950 Cb7067 2000 08 02.01813 16 11 32.59 +00 43 42.0 00KL4 809 Cb7682 2000 08 02.04447 16 11 32.57 +00 43 41.3 00KL4 809 Cb7682 2001 02 23.33056 16 25 17.58 -00 07 17.4 24.0R 00KL4 309 Cc6647 2001 02 23.38140 16 25 17.64 -00 07 16.0 24.0R 00KL4 309 Cc6647 2001 02 24.39380 16 25 18.90 -00 06 46.6 23.5R 00KL4 309 Cc6647 2001 03 21.47435 16 25 17.25 +00 06 24.7 00KL4 695 Cc7847 2001 03 22.48070 16 25 15.88 +00 06 57.6 00KL4 695 Cc7847 2002 02 11.36375 16 30 16.51 -00 30 15.8 22.6R 00KL4 304 Ce8775 2002 02 11.39075 16 30 16.58 -00 30 15.2 00KL4 304 Ce8775 2008 05 03.40891 17 02 06.44 -01 38 24.2 00KL4 695 Cz0376 2008 05 04.39506 17 02 02.45 -01 38 02.4 00KL4 695 Cz0376 2017 07 04.32620 17 48 35.79 -04 10 50.7 22.6R 00KL4 G37 C~2IX3 2017 07 04.38136 17 48 35.46 -04 10 50.7 00KL4 G37 C~2IX3 2019 06 06.366120 18 02 41.618 -04 44 28.78 22.9G 00KL4 G37 C~36iQ 2019 06 06.407730 18 02 41.415 -04 44 28.51 00KL4 G37 C~36iQ
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 0.33 0.00 0.35
2 0.0002 0.00 0.17 0.00 0.69
3 0.0003 0.00 -0.17 0.00 0.14
4 0.0025 0.00 0.11 0.00 0.45
5 0.0027 0.00 0.01 0.00 0.11
6 0.0028 0.00 0.01 0.00 0.55
7 0.0759 0.00 0.12 0.00 -0.23
8 0.0760 0.00 0.01 0.00 -0.64
9 0.1800 0.00 -0.11 0.00 -0.11
10 0.1801 0.00 0.21 0.00 -0.11
11 0.7421 0.00 -0.15 0.00 -0.01
12 0.7422 0.00 -0.19 0.00 -0.08
13 0.7450 0.00 -0.20 0.00 -0.06
14 0.8137 0.00 0.03 0.00 0.07
15 0.8164 0.00 -0.14 0.00 -0.10
16 1.7087 0.00 0.10 0.00 -0.43
17 1.7087 0.00 0.11 0.00 -0.48
18 7.9319 0.00 -0.07 0.00 -0.28
19 7.9346 0.00 -0.08 0.00 -0.26
20 17.1008 0.00 0.44 0.00 -0.05
21 17.1009 0.00 -0.39 0.00 0.44
22 19.0228 0.00 -0.04 0.00 -0.05
23 19.0229 0.00 0.03 0.00 0.02
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.
00KL4 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 38.413 38.413 38.413 ecceobj 0.066 0.066 0.066 incobj 21.307 21.307 21.307 qmin 35.300 35.088 35.208 qmax 42.352 42.426 42.242 amean 38.646 38.653 38.654 amin 38.336 38.345 38.353 amax 38.989 38.984 38.981 emean 0.065 0.069 0.069 emin 0.049 0.053 0.055 emax 0.086 0.089 0.086 imean 20.416 20.423 20.372 imin 19.468 19.472 19.400 imax 21.803 21.806 21.807 excite_mean 0.355 0.356 0.355 fracstop 1.000 1.000 1.000 cjmean 2.900 2.900 2.900 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 181.2 182.0 181.6 kozaiamp 180.0 180.0 180.0