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: 00FH8
# Created Sat May 4 01:10:12 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 21 observations of 21
# Arc: 18.13y
# First observation: 2000/03/29
# Last observation: 2018/05/16
# Chi-squared of fit: 71.52 DOF: 36 RMS: 0.33
# Min/Max residuals: -0.54 0.88
# Exact a, adot, b, bdot, g, gdot:
1.436712E-05 2.111424E-02 -2.371956E-06 -7.639831E-04 2.283629E-02 2.744004E-04
# Covariance matrix:
1.4677E-13 -9.5402E-14 -1.7493E-15 3.3440E-15 2.2861E-14 -2.5134E-13
-9.5402E-14 1.7028E-13 3.3284E-15 -6.3510E-15 -3.1264E-14 4.7715E-13
-1.7493E-15 3.3284E-15 1.0029E-13 -7.2079E-15 -6.4202E-16 9.4500E-15
3.3440E-15 -6.3510E-15 -7.2079E-15 2.4176E-15 1.5061E-15 -1.8060E-14
2.2861E-14 -3.1264E-14 -6.4202E-16 1.5061E-15 2.9394E-13 -1.1753E-13
-2.5134E-13 4.7715E-13 9.4500E-15 -1.8060E-14 -1.1753E-13 1.3573E-12
# lat0 lon0 xBary yBary zBary JD0
0.100574 -173.963785 -0.054452 0.001553 -1.004230 2451632.902433
# Heliocentric elements and errors
Epoch: 2451632.5000 = 2000/03/29
Mean Anomaly: 153.60656 +/- 0.119
Argument of Peri: 21.82862 +/- 0.113
Long of Asc Node: 8.81084 +/- 0.000
Inclination: 2.07827 +/- 0.000
Eccentricity: 0.03795445 +/- 0.0001
Semi-Major Axis: 43.30328465 +/- 0.0044
Time of Perihelion: 2407221.8694 +/- 35.0
Perihelion: 41.65973248 +/- 0.0051
Aphelion: 44.94683682 +/- 0.0053
Period (y) 284.9636 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -44.53333619 +/- 0.0010
Ecliptic Y -4.76177483 +/- 0.0001
Ecliptic Z 0.07677598 +/- 0.0000
Ecliptic XDOT 0.00022720 +/- 0.0000
Ecliptic YDOT -0.00251409 +/- 0.0000
Ecliptic ZDOT -0.00009142 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.78724702 +/- 0.0010
Geocenter to KBO 43.78998186 +/- 0.0010
# Hcoef: 7.37
The following table shows the complete astrometric record for 00FH8. 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 (00FH8) followed by the observatory code and reference code for the source of the astrometry.
2000 03 29.40169 12 22 19.49 -02 18 17.9 22.7R 00FH8 568 Cb2555 2000 03 29.44417 12 22 19.29 -02 18 16.8 22.9R 00FH8 568 Cb2555 2000 03 29.48942 12 22 19.09 -02 18 15.6 00FH8 568 Cb2555 2000 03 30.57157 12 22 14.47 -02 17 47.2 00FH8 568 Cb2555 2000 03 30.58840 12 22 14.39 -02 17 46.3 00FH8 568 Cb2555 2000 07 27.97379 12 19 49.79 -02 03 18.5 23.8R 00FH8 309 Cb7658 2000 07 27.97934 12 19 49.80 -02 03 18.6 23.9R 00FH8 309 Cb7658 2000 07 27.98518 12 19 49.82 -02 03 18.6 23.9R 00FH8 309 Cb7658 2001 01 19.53225 12 30 20.64 -03 12 21.6 23.7R 00FH8 675 Cd0818 2001 01 23.52126 12 30 15.68 -03 11 51.0 23.5R 00FH8 675 Cd0818 2001 02 24.23987 12 28 55.59 -03 03 29.0 00FH8 309 Cd0818 2001 02 24.29212 12 28 55.40 -03 03 27.8 23.5R 00FH8 309 Cd0818 2001 02 24.33747 12 28 55.24 -03 03 26.8 23.7R 00FH8 309 Cd0818 2001 04 27.31082 12 24 46.73 -02 37 14.0 23.2R 00FH8 568 Cd0818 2001 04 27.39579 12 24 46.40 -02 37 12.0 00FH8 568 Cd0818 2001 04 27.47426 12 24 46.10 -02 37 10.4 00FH8 568 Cd0818 2002 02 11.23476 12 33 57.84 -03 38 32.5 00FH8 304 Ce8748 2002 02 11.30224 12 33 57.64 -03 38 31.5 24.0R 00FH8 304 Ce8748 2015 04 24.23586 13 26 42.78 -09 41 29.0 23.7R 00FH8 G37 C~1Re8 2015 04 24.40514 13 26 42.05 -09 41 24.3 00FH8 G37 C~1Re8 2018 05 16.413443 13 38 41.660 -10 59 04.39 24.2G 00FH8 T12 C~2end
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 0.20 0.00 0.33
2 0.0001 0.00 -0.04 0.00 0.28
3 0.0002 0.00 -0.10 0.00 0.26
4 0.0032 0.00 -0.35 0.00 -0.54
5 0.0032 0.00 -0.46 0.00 -0.09
6 0.3301 0.00 -0.01 0.00 -0.51
7 0.3301 0.00 -0.11 0.00 -0.50
8 0.3301 0.00 -0.08 0.00 -0.38
9 0.8108 0.00 0.58 0.00 -0.21
10 0.8217 0.00 0.16 0.00 0.20
11 0.9085 0.00 -0.08 0.00 -0.37
12 0.9087 0.00 -0.14 0.00 -0.32
13 0.9088 0.00 -0.11 0.00 -0.31
14 1.0785 0.00 0.44 0.00 0.17
15 1.0787 0.00 0.13 0.00 0.26
16 1.0789 0.00 -0.10 0.00 0.09
17 1.8722 0.00 0.23 0.00 0.88
18 1.8724 0.00 -0.00 0.00 0.76
19 15.0687 0.00 0.01 0.00 -0.18
20 15.0691 0.00 0.00 0.00 0.34
21 18.1301 0.00 -0.08 0.00 -0.25
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.
00FH8 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.284 43.284 43.284 ecceobj 0.038 0.038 0.038 incobj 2.079 2.079 2.079 qmin 40.938 40.941 40.934 qmax 46.400 46.399 46.403 amean 43.555 43.555 43.556 amin 43.217 43.216 43.217 amax 43.906 43.909 43.906 emean 0.040 0.040 0.040 emin 0.022 0.022 0.022 emax 0.057 0.057 0.057 imean 2.350 2.350 2.350 imin 1.512 1.512 1.512 imax 3.103 3.103 3.103 excite_mean 0.058 0.058 0.058 fracstop 1.000 1.000 1.000 cjmean 3.092 3.092 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 186.0 186.0 186.0 kozaiamp 180.0 180.0 180.0