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: 04DN64
# Created Fri Apr 19 01:11:43 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 6 observations of 6
# Arc: 17.93d
# First observation: 2004/02/26
# Last observation: 2004/03/15
# Chi-squared of fit: 24.97 DOF: 6 RMS: 0.36
# Min/Max residuals: -0.61 0.80
# Exact a, adot, b, bdot, g, gdot:
1.754437E-05 2.419076E-02 -7.117268E-07 -3.762852E-04 2.430044E-02 3.599568E-04
# Covariance matrix:
1.0171E-11 1.7083E-08 -1.8752E-13 -1.8421E-10 2.8566E-09 1.0452E-08
1.7083E-08 3.0221E-05 -3.3141E-10 -3.2565E-07 5.0489E-06 1.7267E-05
-1.8752E-13 -3.3141E-10 5.0138E-13 -6.9683E-12 -5.5379E-11 -1.9978E-10
-1.8421E-10 -3.2565E-07 -6.9683E-12 3.9474E-09 -5.4408E-08 -1.8676E-07
2.8566E-09 5.0489E-06 -5.5379E-11 -5.4408E-08 8.4363E-07 3.0082E-06
1.0452E-08 1.7267E-05 -1.9978E-10 -1.8676E-07 3.0082E-06 1.3539E-04
# lat0 lon0 xBary yBary zBary JD0
1.894619 -176.719261 0.434369 0.029305 -0.884395 2453061.908663
# Heliocentric elements and errors
Epoch: 2453062.5000 = 2004/02/27
Mean Anomaly: 5.23595 +/- 9.442
Argument of Peri: 109.16818 +/- 52.654
Long of Asc Node: 67.57704 +/- 1.477
Inclination: 2.04785 +/- 0.024
Eccentricity: 0.06121543 +/- 0.3566
Semi-Major Axis: 44.76929770 +/- 109.0022
Time of Perihelion: 2451471.1632 +/- 6481.7
Perihelion: 42.02872579 +/- 103.5671
Aphelion: 47.50986961 +/- 116.7710
Period (y) 299.5564 +/- 1094.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.97351105 +/- 1.3909
Ecliptic Y -1.96898003 +/- 0.0796
Ecliptic Z 1.36051346 +/- 0.0461
Ecliptic XDOT 0.00011044 +/- 0.0012
Ecliptic YDOT -0.00273011 +/- 0.0005
Ecliptic ZDOT -0.00004089 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.04168390 +/- 1.3887
Geocenter to KBO 41.15153945 +/- 1.3940
# Hcoef: 7.58
The following table shows the complete astrometric record for 04DN64. 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 (04DN64) followed by the observatory code and reference code for the source of the astrometry.
2004 02 26.40792 12 15 03.13 +00 26 03.8 23.3R 04DN64 695 Ck0899 2004 02 26.48487 12 15 02.85 +00 26 05.6 04DN64 695 Ck0899 2004 02 27.46725 12 14 59.02 +00 26 31.4 04DN64 695 Ck0899 2004 03 14.43499 12 13 52.09 +00 33 58.3 23.6R 04DN64 695 Ck4349 2004 03 15.25257 12 13 48.44 +00 34 21.4 04DN64 695 Ck4349 2004 03 15.34004 12 13 48.02 +00 34 24.0 04DN64 695 Ck4349
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 -0.30 0.00 0.24
2 0.0002 0.00 0.06 0.00 0.00
3 0.0029 0.00 0.19 0.00 -0.26
4 0.0466 0.00 0.80 0.00 0.31
5 0.0489 0.00 -0.19 0.00 -0.17
6 0.0491 0.00 -0.61 0.00 -0.10
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.
04DN64 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.248 44.248 44.248 ecceobj 0.050 0.050 0.050 incobj 2.050 2.050 2.050 qmin 41.276 41.274 41.276 qmax 47.997 47.997 47.997 amean 44.517 44.517 44.517 amin 44.170 44.170 44.170 amax 44.880 44.880 44.880 emean 0.054 0.054 0.054 emin 0.038 0.038 0.038 emax 0.070 0.070 0.070 imean 0.968 0.968 0.968 imin 0.250 0.250 0.250 imax 1.434 1.434 1.434 excite_mean 0.057 0.057 0.057 fracstop 1.000 1.000 1.000 cjmean 3.104 3.104 3.104 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 173.1 173.1 173.2 kozaiamp 180.0 180.0 180.0