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: 04DG64
# Created Wed Dec 25 02:08:30 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 51 observations of 51
# Arc: 14.38y
# First observation: 2003/12/24
# Last observation: 2018/05/12
# Chi-squared of fit: 16.92 DOF: 96 RMS: 0.10
# Min/Max residuals: -0.32 0.24
# Exact a, adot, b, bdot, g, gdot:
1.515505E-05 2.352953E-02 -4.493804E-07 -8.990026E-04 2.394598E-02 6.952403E-04
# Covariance matrix:
2.5766E-13 2.0719E-14 -2.9651E-15 -1.0402E-15 1.6141E-13 9.8866E-14
2.0719E-14 4.5191E-14 -8.8032E-16 -1.6115E-15 8.2104E-14 1.4575E-13
-2.9651E-15 -8.8032E-16 1.5667E-13 -1.2901E-14 -4.6428E-15 -2.5321E-15
-1.0402E-15 -1.6115E-15 -1.2901E-14 1.3450E-15 -2.7587E-15 -5.3830E-15
1.6141E-13 8.2104E-14 -4.6428E-15 -2.7587E-15 2.8239E-13 2.5578E-13
9.8866E-14 1.4575E-13 -2.5321E-15 -5.3830E-15 2.5578E-13 4.8605E-13
# lat0 lon0 xBary yBary zBary JD0
2.191734 168.702948 0.954111 0.008727 -0.226318 2452998.045148
# Heliocentric elements and errors
Epoch: 2452998.5000 = 2003/12/25
Mean Anomaly: 12.06341 +/- 0.054
Argument of Peri: 121.37130 +/- 0.059
Long of Asc Node: 33.02388 +/- 0.001
Inclination: 3.04722 +/- 0.000
Eccentricity: 0.03596556 +/- 0.0001
Semi-Major Axis: 43.53018351 +/- 0.0034
Time of Perihelion: 2449483.2865 +/- 15.8
Perihelion: 41.96459615 +/- 0.0040
Aphelion: 45.09577087 +/- 0.0042
Period (y) 287.2063 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.96029758 +/- 0.0009
Ecliptic Y 9.15701137 +/- 0.0002
Ecliptic Z 1.59705627 +/- 0.0000
Ecliptic XDOT -0.00061300 +/- 0.0000
Ecliptic YDOT -0.00262810 +/- 0.0000
Ecliptic ZDOT -0.00009952 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.00174995 +/- 0.0009
Geocenter to KBO 41.76067167 +/- 0.0009
# Hcoef: 7.36
The following table shows the complete astrometric record for 04DG64. 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 (04DG64) followed by the observatory code and reference code for the source of the astrometry.
2003 12 24.544405 11 21 54.45 +06 29 08.2 04DG64 T14 C~89L7 2003 12 24.611265 11 21 54.41 +06 29 08.7 04DG64 T14 C~89L7 2004 02 22.38330 11 19 13.54 +06 48 06.7 23.3R 04DG64 695 Ck0899 2004 02 22.42483 11 19 13.36 +06 48 08.1 04DG64 695 Ck0899 2004 02 26.35815 11 18 56.05 +06 49 59.0 23.3R 04DG64 695 Ck0899 2004 02 26.43653 11 18 55.71 +06 50 01.3 04DG64 695 Ck0899 2004 02 27.31905 11 18 51.77 +06 50 26.1 04DG64 695 Ck0899 2004 03 15.21148 11 17 35.19 +06 58 24.1 24.0R 04DG64 695 Ck4349 2004 03 15.29066 11 17 34.83 +06 58 26.7 04DG64 695 Ck4349 2013 05 12.116886 11 58 31.793 +01 59 54.20 23.8r 04DG64 W84 C~8Gic 2014 04 21.984629 12 04 29.842 +01 17 57.19 22.6z 04DG64 W84 C~8Gic 2014 04 21.987519 12 04 29.832 +01 17 57.26 22.5z 04DG64 W84 C~8Gic 2014 04 21.993267 12 04 29.810 +01 17 57.41 22.4z 04DG64 W84 C~8Gic 2014 04 22.009290 12 04 29.748 +01 17 57.73 22.5z 04DG64 W84 C~8Gic 2014 04 22.012158 12 04 29.743 +01 17 57.98 23.0z 04DG64 W84 C~8Gic 2014 04 22.015021 12 04 29.726 +01 17 57.88 23.5z 04DG64 W84 C~8Gic 2014 04 22.017898 12 04 29.717 +01 17 57.95 23.7z 04DG64 W84 C~8Gic 2015 03 20.457985 12 11 44.87 +00 27 26.9 04DG64 T09 C~89L7 2015 03 20.496906 12 11 44.69 +00 27 28.0 04DG64 T09 C~89L7 2016 04 02.38656 12 15 39.10 -00 02 11.7 23.2i 04DG64 T09 C~89TZ 2016 04 02.41462 12 15 38.99 -00 02 10.9 23.3i 04DG64 T09 C~89TZ 2016 04 02.43920 12 15 38.87 -00 02 10.4 23.2i 04DG64 T09 C~89TZ 2016 04 02.46363 12 15 38.76 -00 02 09.7 23.3i 04DG64 T09 C~89TZ 2016 04 02.46633 12 15 38.75 -00 02 09.7 23.3i 04DG64 T09 C~89TZ 2016 04 02.48823 12 15 38.65 -00 02 09.0 23.1i 04DG64 T09 C~89TZ 2016 04 02.49902 12 15 38.61 -00 02 08.7 23.3i 04DG64 T09 C~89TZ 2016 04 02.52059 12 15 38.51 -00 02 08.2 23.2i 04DG64 T09 C~89TZ 2016 04 04.34312 12 15 30.49 -00 01 18.0 24.6g 04DG64 T09 C~89TZ 2016 04 04.38515 12 15 30.30 -00 01 17.0 24.5g 04DG64 T09 C~89TZ 2016 04 04.38727 12 15 30.29 -00 01 16.8 24.7g 04DG64 T09 C~89TZ 2016 04 04.40435 12 15 30.20 -00 01 16.3 24.7g 04DG64 T09 C~89TZ 2016 04 04.41084 12 15 30.19 -00 01 16.1 24.3g 04DG64 T09 C~89TZ 2016 04 05.428310 12 15 25.73 -00 00 48.5 04DG64 T09 C~89L7 2016 04 05.546249 12 15 25.20 -00 00 45.3 04DG64 T09 C~89L7 2016 04 08.50449 12 15 12.35 +00 00 34.5 23.9r 04DG64 T09 C~89TZ 2016 04 08.51156 12 15 12.32 +00 00 34.6 24.0r 04DG64 T09 C~89TZ 2016 04 08.51792 12 15 12.28 +00 00 34.8 23.8r 04DG64 T09 C~89TZ 2016 04 08.52425 12 15 12.26 +00 00 35.0 23.8r 04DG64 T09 C~89TZ 2016 04 08.52637 12 15 12.26 +00 00 35.1 23.9r 04DG64 T09 C~89TZ 2016 04 15.37454 12 14 43.41 +00 03 32.3 23.0y 04DG64 T09 C~89TZ 2016 04 15.41093 12 14 43.26 +00 03 33.0 23.2y 04DG64 T09 C~89Ta 2016 04 15.43491 12 14 43.15 +00 03 34.0 23.1y 04DG64 T09 C~89Ta 2016 04 15.45396 12 14 43.07 +00 03 34.4 23.2y 04DG64 T09 C~89Ta 2016 04 15.45934 12 14 43.05 +00 03 34.7 23.0y 04DG64 T09 C~89Ta 2017 01 26.62279 12 24 35.78 -01 04 38.2 23.6z 04DG64 T09 C~89L7 2017 01 26.63421 12 24 35.76 -01 04 37.8 23.5z 04DG64 T09 C~89L7 2017 01 26.64766 12 24 35.73 -01 04 37.8 23.4z 04DG64 T09 C~89L7 2017 01 26.65034 12 24 35.73 -01 04 37.7 23.6z 04DG64 T09 C~89L7 2017 02 23.595374 12 23 16.62 -00 55 38.5 04DG64 T09 C~89L7 2018 05 11.041655 12 23 00.768 -00 59 17.77 23.8V 04DG64 W84 C~8Gic 2018 05 12.021227 12 22 57.864 -00 59 01.18 23.1V 04DG64 W84 C~8Gic
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 0.06 0.00 -0.06
2 0.0002 0.00 -0.09 0.00 0.08
3 0.1638 0.00 -0.02 0.00 -0.09
4 0.1639 0.00 0.03 0.00 0.15
5 0.1747 0.00 -0.04 0.00 0.04
6 0.1749 0.00 0.17 0.00 0.12
7 0.1773 0.00 -0.10 0.00 -0.14
8 0.2236 0.00 -0.08 0.00 -0.23
9 0.2238 0.00 -0.01 0.00 0.18
10 9.3814 0.00 -0.25 0.00 0.02
11 10.3256 0.00 0.06 0.00 -0.08
12 10.3256 0.00 0.08 0.00 -0.07
13 10.3257 0.00 0.08 0.00 -0.05
14 10.3257 0.00 0.06 0.00 -0.09
15 10.3257 0.00 0.15 0.00 0.10
16 10.3257 0.00 0.06 0.00 -0.07
17 10.3257 0.00 0.09 0.00 -0.06
18 11.2359 0.00 0.05 0.00 -0.02
19 11.2360 0.00 0.01 0.00 -0.03
20 12.2734 0.00 -0.21 0.00 0.22
21 12.2734 0.00 0.03 0.00 0.24
22 12.2735 0.00 -0.10 0.00 0.06
23 12.2736 0.00 -0.10 0.00 0.09
24 12.2736 0.00 -0.07 0.00 0.01
25 12.2736 0.00 -0.09 0.00 0.11
26 12.2737 0.00 0.04 0.00 0.11
27 12.2737 0.00 -0.01 0.00 0.01
28 12.2787 0.00 0.04 0.00 0.05
29 12.2788 0.00 0.01 0.00 -0.10
30 12.2788 0.00 0.00 0.00 0.04
31 12.2789 0.00 -0.20 0.00 0.08
32 12.2789 0.00 0.09 0.00 0.10
33 12.2817 0.00 0.14 0.00 -0.07
34 12.2820 0.00 0.05 0.00 -0.08
35 12.2901 0.00 -0.02 0.00 0.03
36 12.2901 0.00 -0.00 0.00 -0.05
37 12.2901 0.00 -0.19 0.00 -0.02
38 12.2902 0.00 -0.07 0.00 0.01
39 12.2902 0.00 0.07 0.00 0.05
40 12.3089 0.00 -0.02 0.00 -0.11
41 12.3090 0.00 0.02 0.00 -0.32
42 12.3091 0.00 -0.13 0.00 0.08
43 12.3091 0.00 -0.13 0.00 0.00
44 12.3091 0.00 -0.09 0.00 0.17
45 13.0926 0.00 0.01 0.00 -0.11
46 13.0926 0.00 0.03 0.00 0.14
47 13.0927 0.00 -0.04 0.00 -0.04
48 13.0927 0.00 0.04 0.00 0.03
49 13.1692 0.00 0.05 0.00 -0.16
50 14.3778 0.00 0.10 0.00 -0.05
51 14.3805 0.00 0.09 0.00 -0.06
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.
04DG64 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.084 43.084 43.084 ecceobj 0.027 0.027 0.027 incobj 3.057 3.057 3.057 qmin 40.818 40.817 40.821 qmax 45.988 45.981 45.992 amean 43.279 43.279 43.279 amin 42.950 42.950 42.950 amax 43.632 43.630 43.633 emean 0.035 0.035 0.035 emin 0.015 0.015 0.015 emax 0.054 0.054 0.054 imean 2.398 2.398 2.398 imin 1.513 1.513 1.513 imax 3.166 3.166 3.166 excite_mean 0.055 0.055 0.055 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 170.7 170.8 170.7 kozaiamp 179.9 179.9 179.9