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: 04HL79
# Created Sun Dec 22 02:08:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 19 observations of 19
# Arc: 19.13y
# First observation: 2004/04/26
# Last observation: 2023/06/15
# Chi-squared of fit: 16.10 DOF: 32 RMS: 0.16
# Min/Max residuals: -0.47 0.58
# Exact a, adot, b, bdot, g, gdot:
1.532862E-05 2.492488E-02 3.836639E-06 7.479335E-03 2.560542E-02 1.327519E-03
# Covariance matrix:
2.6302E-13 -1.9622E-14 9.4275E-15 -5.0038E-15 3.1458E-13 -4.2674E-14
-1.9622E-14 2.8763E-14 -9.3762E-15 8.1133E-15 5.5042E-14 5.6436E-14
9.4275E-15 -9.3762E-15 1.2127E-13 -1.1586E-14 -5.7126E-15 -2.0440E-14
-5.0038E-15 8.1133E-15 -1.1586E-14 4.2995E-15 1.2490E-14 1.7244E-14
3.1458E-13 5.5042E-14 -5.7126E-15 1.2490E-14 9.1868E-13 6.8053E-14
-4.2674E-14 5.6436E-14 -2.0440E-14 1.7244E-14 6.8053E-14 1.2105E-13
# lat0 lon0 xBary yBary zBary JD0
1.404866 -153.193760 -0.170857 0.024331 -0.989654 2453121.835603
# Heliocentric elements and errors
Epoch: 2453122.5000 = 2004/04/27
Mean Anomaly: 43.02626 +/- 0.052
Argument of Peri: 315.15076 +/- 0.061
Long of Asc Node: 202.48173 +/- 0.000
Inclination: 16.72873 +/- 0.000
Eccentricity: 0.07844827 +/- 0.0001
Semi-Major Axis: 42.34284169 +/- 0.0066
Time of Perihelion: 2441094.3313 +/- 14.8
Perihelion: 39.02111883 +/- 0.0069
Aphelion: 45.66456455 +/- 0.0078
Period (y) 275.5359 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -35.65694512 +/- 0.0013
Ecliptic Y -18.20458578 +/- 0.0006
Ecliptic Z 0.95766189 +/- 0.0000
Ecliptic XDOT 0.00108974 +/- 0.0000
Ecliptic YDOT -0.00244077 +/- 0.0000
Ecliptic ZDOT 0.00080309 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.04670950 +/- 0.0012
Geocenter to KBO 39.05423084 +/- 0.0015
# Hcoef: 7.54
The following table shows the complete astrometric record for 04HL79. 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 (04HL79) followed by the observatory code and reference code for the source of the astrometry.
2004 04 26.33486 13 41 32.34 -09 01 24.6 23.5g 04HL79 568 C~0VDp 2004 04 26.35977 13 41 32.21 -09 01 24.1 24.2g 04HL79 568 C~0VDp 2004 04 26.38244 13 41 32.10 -09 01 23.2 23.6g 04HL79 568 C~0VDp 2004 06 20.28067 13 38 23.88 -08 40 31.5 23.8r 04HL79 568 C~0VDp 2004 06 20.33343 13 38 23.78 -08 40 30.9 04HL79 568 C~0VDp 2004 06 20.38203 13 38 23.71 -08 40 30.3 04HL79 568 C~0VDp 2005 05 04.35042 13 46 58.28 -09 04 14.7 23.7r 04HL79 568 C~0VDp 2005 05 04.38468 13 46 58.13 -09 04 13.8 23.7r 04HL79 568 C~0VDp 2005 05 04.42866 13 46 57.91 -09 04 12.6 23.1r 04HL79 568 C~0VDp 2005 05 05.39541 13 46 53.58 -09 03 44.4 23.3r 04HL79 568 C~0VDp 2006 06 29.27999 13 50 03.85 -08 52 25.9 23.6r 04HL79 568 C~0VDp 2006 06 29.29296 13 50 03.80 -08 52 25.2 24.0r 04HL79 568 C~0VDp 2006 06 30.26046 13 50 02.79 -08 52 19.3 23.2r 04HL79 568 C~0VDp 2009 06 22.19434 14 07 56.28 -09 10 21.2 04HL79 695 C~0VDp 2009 06 22.25807 14 07 56.12 -09 10 20.7 04HL79 695 C~0VDp 2016 05 29.22238 14 50 11.916 -09 41 55.29 23.4R 04HL79 G37 C~2bkb 2016 05 29.29416 14 50 11.599 -09 41 53.96 04HL79 G37 C~2bkb 2023 06 15.197230 15 29 21.161 -09 44 33.45 23.7G 04HL79 G37 C~6r2R 2023 06 15.241170 15 29 20.981 -09 44 32.88 04HL79 G37 C~6r2R
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 0.15
2 0.0001 0.00 -0.11 0.00 -0.12
3 0.0001 0.00 -0.16 0.00 0.09
4 0.1504 0.00 0.11 0.00 -0.12
5 0.1506 0.00 -0.07 0.00 -0.13
6 0.1507 0.00 0.08 0.00 -0.09
7 1.0213 0.00 0.06 0.00 0.07
8 1.0214 0.00 0.17 0.00 -0.02
9 1.0215 0.00 -0.10 0.00 -0.10
10 1.0241 0.00 0.12 0.00 0.06
11 2.1737 0.00 0.04 0.00 -0.03
12 2.1737 0.00 -0.47 0.00 0.58
13 2.1764 0.00 0.18 0.00 -0.29
14 5.1550 0.00 0.12 0.00 0.08
15 5.1552 0.00 -0.18 0.00 -0.11
16 12.0900 0.00 0.07 0.00 0.06
17 12.0902 0.00 0.01 0.00 -0.00
18 19.1345 0.00 -0.02 0.00 -0.06
19 19.1346 0.00 0.00 0.00 -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.
04HL79 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.877 41.878 41.877 ecceobj 0.071 0.071 0.071 incobj 16.812 16.812 16.812 qmin 38.219 38.206 38.174 qmax 46.417 46.379 46.432 amean 42.155 42.155 42.155 amin 41.827 41.823 41.821 amax 42.510 42.508 42.512 emean 0.071 0.071 0.071 emin 0.051 0.052 0.052 emax 0.093 0.092 0.093 imean 17.362 17.362 17.362 imin 16.771 16.771 16.780 imax 18.019 18.019 18.024 excite_mean 0.307 0.307 0.307 fracstop 1.000 1.000 1.000 cjmean 2.967 2.967 2.967 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 175.6 175.6 175.5 kozaiamp 179.9 179.9 179.9