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: 04HK79
# Created Wed Dec 25 02:08:33 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 22 observations of 22
# Arc: 11.00y
# First observation: 2004/04/26
# Last observation: 2015/04/26
# Chi-squared of fit: 50.61 DOF: 38 RMS: 0.27
# Min/Max residuals: -0.95 0.45
# Exact a, adot, b, bdot, g, gdot:
1.661661E-05 2.492471E-02 -1.219316E-06 -6.210705E-04 2.480452E-02 -1.430156E-03
# Covariance matrix:
2.4477E-13 -1.8537E-13 -2.1983E-15 3.9807E-15 1.4802E-13 -5.7802E-13
-1.8537E-13 2.2834E-13 3.0047E-15 -5.2232E-15 -1.6849E-13 7.5710E-13
-2.1983E-15 3.0047E-15 1.1141E-13 -1.3069E-14 -5.2406E-16 1.0391E-14
3.9807E-15 -5.2232E-15 -1.3069E-14 3.8080E-15 3.4836E-15 -1.7669E-14
1.4802E-13 -1.6849E-13 -5.2406E-16 3.4836E-15 4.2888E-13 -5.2141E-13
-5.7802E-13 7.5710E-13 1.0391E-14 -1.7669E-14 -5.2141E-13 2.5585E-12
# lat0 lon0 xBary yBary zBary JD0
1.345339 -153.702789 -0.179597 0.023267 -0.988129 2453121.832763
# Heliocentric elements and errors
Epoch: 2453122.5000 = 2004/04/27
Mean Anomaly: 324.58775 +/- 0.065
Argument of Peri: 178.80059 +/- 0.079
Long of Asc Node: 69.05020 +/- 0.003
Inclination: 1.94281 +/- 0.000
Eccentricity: 0.08176505 +/- 0.0001
Semi-Major Axis: 44.13773566 +/- 0.0061
Time of Perihelion: 2463658.2284 +/- 27.9
Perihelion: 40.52881138 +/- 0.0062
Aphelion: 47.74665993 +/- 0.0071
Period (y) 293.2400 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.94306814 +/- 0.0010
Ecliptic Y -18.45327609 +/- 0.0005
Ecliptic Z 0.94650580 +/- 0.0000
Ecliptic XDOT 0.00135586 +/- 0.0000
Ecliptic YDOT -0.00240413 +/- 0.0000
Ecliptic ZDOT -0.00007211 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.30632209 +/- 0.0009
Geocenter to KBO 40.31531108 +/- 0.0011
# Hcoef: 6.85
The following table shows the complete astrometric record for 04HK79. 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 (04HK79) followed by the observatory code and reference code for the source of the astrometry.
2004 04 26.33202 13 39 31.79 -08 53 44.6 23.3g 04HK79 568 C~0VDp 2004 04 26.35319 13 39 31.69 -08 53 44.0 23.2g 04HK79 568 C~0VDp 2004 04 26.37961 13 39 31.57 -08 53 43.5 23.1g 04HK79 568 C~0VDp 2004 04 27.33028 13 39 27.28 -08 53 19.2 23.6g 04HK79 568 C~0VDp 2004 06 20.28067 13 36 26.41 -08 37 25.4 22.9i 04HK79 568 C~0VDp 2004 06 20.33344 13 36 26.33 -08 37 25.0 22.9i 04HK79 568 C~0VDp 2004 06 20.38204 13 36 26.24 -08 37 24.8 22.8i 04HK79 568 C~0VDp 2005 05 04.35042 13 44 18.68 -09 23 25.6 22.9r 04HK79 568 C~0VDp 2005 05 04.38468 13 44 18.53 -09 23 24.7 23.2r 04HK79 568 C~0VDp 2005 05 04.42866 13 44 18.33 -09 23 23.8 23.0r 04HK79 568 C~0VDp 2005 05 05.39541 13 44 14.06 -09 23 00.4 22.7r 04HK79 568 C~0VDp 2006 01 28.49815 13 54 48.44 -10 25 23.3 04HK79 675 C~0VDp 2006 01 29.50281 13 54 48.63 -10 25 21.9 04HK79 675 C~0VDp 2006 05 02.24354 13 49 52.99 -09 57 03.6 04HK79 695 C~0VDp 2006 05 04.18169 13 49 44.24 -09 56 16.1 22.9r 04HK79 695 C~0VDp 2006 05 04.26682 13 49 43.85 -09 56 14.0 22.2r 04HK79 695 C~0VDp 2013 03 13.42100 14 31 57.95 -13 54 08.6 22.9R 04HK79 695 C~0ud8 2013 03 13.49848 14 31 57.73 -13 54 07.6 04HK79 695 C~0ud8 2013 03 14.49217 14 31 54.78 -13 53 52.4 04HK79 695 C~0ud8 2015 04 25.30038 14 40 25.18 -14 39 23.3 23.4V 04HK79 W84 C~2fbn 2015 04 26.29621 14 40 20.38 -14 39 01.4 04HK79 W84 C~2fbn 2015 04 26.36598 14 40 20.05 -14 38 59.8 04HK79 W84 C~2fbn
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 -0.08 0.00 0.21
2 0.0001 0.00 -0.11 0.00 0.28
3 0.0001 0.00 -0.06 0.00 0.10
4 0.0027 0.00 0.45 0.00 0.29
5 0.1504 0.00 -0.06 0.00 0.13
6 0.1506 0.00 0.05 0.00 0.17
7 0.1507 0.00 -0.11 0.00 0.03
8 1.0213 0.00 0.02 0.00 -0.25
9 1.0214 0.00 0.09 0.00 -0.18
10 1.0215 0.00 0.08 0.00 -0.35
11 1.0241 0.00 0.20 0.00 -0.25
12 1.7582 0.00 -0.74 0.00 -0.95
13 1.7609 0.00 0.07 0.00 -0.45
14 2.0148 0.00 -0.22 0.00 0.19
15 2.0201 0.00 0.11 0.00 0.40
16 2.0204 0.00 0.10 0.00 0.44
17 8.8791 0.00 -0.04 0.00 0.12
18 8.8793 0.00 0.14 0.00 -0.03
19 8.8820 0.00 0.06 0.00 0.28
20 10.9951 0.00 -0.02 0.00 -0.02
21 10.9978 0.00 -0.10 0.00 -0.09
22 10.9980 0.00 0.06 0.00 -0.05
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.
04HK79 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.631 43.631 43.631 ecceobj 0.075 0.075 0.075 incobj 1.947 1.947 1.947 qmin 39.974 39.981 39.951 qmax 48.189 48.193 48.198 amean 43.958 43.958 43.958 amin 43.618 43.617 43.612 amax 44.319 44.318 44.336 emean 0.070 0.070 0.070 emin 0.054 0.054 0.054 emax 0.087 0.087 0.088 imean 0.815 0.815 0.815 imin 0.105 0.105 0.105 imax 1.268 1.268 1.268 excite_mean 0.072 0.072 0.072 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 183.3 183.2 183.1 kozaiamp 180.0 180.0 180.0