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: 04HH79
# Created Wed Dec 25 02:08:33 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 22 observations of 22
# Arc: 15.03y
# First observation: 2004/04/24
# Last observation: 2019/05/07
# Chi-squared of fit: 12.99 DOF: 38 RMS: 0.14
# Min/Max residuals: -0.30 0.29
# Exact a, adot, b, bdot, g, gdot:
1.538646E-05 2.242603E-02 2.320963E-06 3.359205E-03 2.370092E-02 -1.197074E-03
# Covariance matrix:
3.1820E-13 1.1721E-14 -1.8133E-15 3.8087E-15 3.0543E-13 7.7965E-14
1.1721E-14 4.1423E-14 -5.1070E-15 6.2425E-15 8.7859E-14 1.2685E-13
-1.8133E-15 -5.1070E-15 1.2797E-13 -1.1481E-14 -9.7835E-15 -1.6312E-14
3.8087E-15 6.2425E-15 -1.1481E-14 2.7850E-15 1.4244E-14 1.9995E-14
3.0543E-13 8.7859E-14 -9.7835E-15 1.4244E-14 5.6182E-13 2.9025E-13
7.7965E-14 1.2685E-13 -1.6312E-14 1.9995E-14 2.9025E-13 4.0633E-13
# lat0 lon0 xBary yBary zBary JD0
1.214696 -129.423443 0.273855 0.020527 -0.965698 2453119.936193
# Heliocentric elements and errors
Epoch: 2453120.5000 = 2004/04/25
Mean Anomaly: 278.16902 +/- 0.074
Argument of Peri: 96.26237 +/- 0.085
Long of Asc Node: 222.33189 +/- 0.000
Inclination: 8.60273 +/- 0.000
Eccentricity: 0.05654182 +/- 0.0000
Semi-Major Axis: 43.37103694 +/- 0.0051
Time of Perihelion: 2476834.9671 +/- 25.8
Perihelion: 40.91875957 +/- 0.0050
Aphelion: 45.82331430 +/- 0.0056
Period (y) 285.6327 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -27.61644113 +/- 0.0009
Ecliptic Y -33.15581024 +/- 0.0010
Ecliptic Z 0.89455562 +/- 0.0000
Ecliptic XDOT 0.00209116 +/- 0.0000
Ecliptic YDOT -0.00153892 +/- 0.0000
Ecliptic ZDOT 0.00038515 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.15992243 +/- 0.0010
Geocenter to KBO 42.19251692 +/- 0.0013
# Hcoef: 6.90
The following table shows the complete astrometric record for 04HH79. 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 (04HH79) followed by the observatory code and reference code for the source of the astrometry.
2004 04 24.43545 15 13 54.06 -16 43 24.7 23.3g 04HH79 568 C~0VDp 2004 04 25.44121 15 13 49.56 -16 43 04.6 23.8g 04HH79 568 C~0VDp 2004 04 25.46820 15 13 49.43 -16 43 03.9 23.2g 04HH79 568 C~0VDp 2004 04 25.49083 15 13 49.33 -16 43 03.5 23.5g 04HH79 568 C~0VDp 2004 07 08.27761 15 08 55.62 -16 21 53.1 23.1i 04HH79 568 C~0VDp 2004 07 08.34060 15 08 55.50 -16 21 52.7 23.4i 04HH79 568 C~0VDp 2004 07 08.40188 15 08 55.35 -16 21 52.2 23.5i 04HH79 568 C~0VDp 2005 07 09.21856 15 14 14.35 -16 31 07.6 04HH79 675 C~0VDp 2005 07 11.20728 15 14 10.16 -16 30 51.0 23.0R 04HH79 675 C~0VDp 2005 07 11.23950 15 14 10.09 -16 30 50.7 23.3R 04HH79 675 C~0VDp 2006 06 03.39035 15 21 41.92 -16 48 14.1 04HH79 568 C~0VDp 2006 06 03.40632 15 21 41.85 -16 48 13.8 04HH79 568 C~0VDp 2006 06 03.42290 15 21 41.76 -16 48 13.7 04HH79 568 C~0VDp 2015 06 12.20358 16 10 42.46 -17 40 33.9 22.9R 04HH79 695 C~1hTc 2015 06 12.25111 16 10 42.24 -17 40 33.6 04HH79 695 C~1hTc 2015 06 12.30416 16 10 41.98 -17 40 32.9 04HH79 695 C~1hTc 2015 06 21.10969 16 10 02.38 -17 38 46.1 23.7V 04HH79 W84 C~47v5 2015 06 24.19795 16 09 49.21 -17 38 12.0 04HH79 W84 C~47v5 2015 06 24.23246 16 09 49.06 -17 38 11.7 04HH79 W84 C~47v5 2019 05 06.316290 16 36 16.67 -17 57 48.9 21.2G 04HH79 705 C~39ne 2019 05 07.314000 16 36 12.34 -17 57 35.6 23.4G 04HH79 705 C~39ne 2019 05 07.416400 16 36 11.86 -17 57 33.9 23.3G 04HH79 705 C~39ne
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 -0.09 0.00 0.01
2 0.0028 0.00 0.15 0.00 -0.14
3 0.0028 0.00 0.06 0.00 0.02
4 0.0029 0.00 0.11 0.00 -0.04
5 0.2049 0.00 0.00 0.00 0.06
6 0.2051 0.00 0.29 0.00 -0.11
7 0.2052 0.00 0.05 0.00 -0.17
8 1.2068 0.00 -0.20 0.00 0.17
9 1.2122 0.00 -0.08 0.00 -0.03
10 1.2123 0.00 -0.11 0.00 0.01
11 2.1080 0.00 -0.08 0.00 0.12
12 2.1081 0.00 -0.05 0.00 0.13
13 2.1081 0.00 -0.29 0.00 -0.06
14 11.1315 0.00 0.12 0.00 0.27
15 11.1316 0.00 0.18 0.00 -0.03
16 11.1317 0.00 0.04 0.00 -0.01
17 11.1559 0.00 0.06 0.00 0.05
18 11.1643 0.00 -0.01 0.00 0.03
19 11.1644 0.00 -0.05 0.00 -0.05
20 15.0305 0.00 -0.30 0.00 -0.18
21 15.0332 0.00 0.21 0.00 -0.19
22 15.0335 0.00 -0.11 0.00 0.14
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.
04HH79 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.009 43.009 43.009 ecceobj 0.060 0.060 0.060 incobj 8.642 8.642 8.642 qmin 39.943 39.950 39.957 qmax 46.807 46.837 46.855 amean 43.312 43.312 43.312 amin 42.976 42.975 42.974 amax 43.664 43.662 43.666 emean 0.060 0.060 0.060 emin 0.046 0.046 0.046 emax 0.073 0.074 0.074 imean 9.962 9.962 9.962 imin 9.339 9.340 9.341 imax 10.616 10.621 10.613 excite_mean 0.183 0.183 0.183 fracstop 1.000 1.000 1.000 cjmean 3.053 3.053 3.053 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 182.0 182.0 182.2 kozaiamp 180.0 180.0 179.9