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: 45802
# Created Wed Apr 24 01:07:04 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 22.95y
# First observation: 1999/07/21
# Last observation: 2022/07/04
# Chi-squared of fit: 80.06 DOF: 34 RMS: 0.35
# Min/Max residuals: -0.66 0.86
# Exact a, adot, b, bdot, g, gdot:
1.446432E-05 2.266185E-02 6.599216E-07 -3.075799E-04 2.366700E-02 3.285290E-04
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
0.913144 -55.698200 0.115924 0.015808 -1.006982 2451380.846353
# Heliocentric elements and errors
Epoch: 2451380.5000 = 1999/07/21
Mean Anomaly: 51.93680 +/- 0.000
Argument of Peri: 77.89639 +/- 0.000
Long of Asc Node: 173.33430 +/- 0.000
Inclination: 1.17856 +/- 0.000
Eccentricity: 0.01081717 +/- 0.0000
Semi-Major Axis: 43.55051103 +/- 0.0000
Time of Perihelion: 2436235.7893 +/- 0.0
Perihelion: 43.07941788 +/- 0.0000
Aphelion: 44.02160419 +/- 0.0000
Period (y) 287.4075 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 24.28887252 +/- 0.0000
Ecliptic Y -35.79535411 +/- 0.0000
Ecliptic Z 0.67342416 +/- 0.0000
Ecliptic XDOT 0.00218391 +/- 0.0000
Ecliptic YDOT 0.00145404 +/- 0.0000
Ecliptic ZDOT -0.00003493 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.26326075 +/- 0.0000
Geocenter to KBO 42.25294763 +/- 0.0000
# Hcoef: 8.01
The following table shows the complete astrometric record for 45802. 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 (45802) followed by the observatory code and reference code for the source of the astrometry.
1999 07 21.34561 20 25 37.11 -18 17 47.0 23.7R 45802 568 Ce8867 1999 07 21.37354 20 25 36.98 -18 17 47.4 24.1R 45802 568 Ce8867 1999 07 21.40086 20 25 36.85 -18 17 48.2 45802 568 Ce8867 2000 08 05.32778 20 29 41.98 -18 04 37.5 45802 568 Cb8005 2000 08 05.37175 20 29 41.78 -18 04 38.3 24.2R 45802 568 Cb8005 2000 08 05.41993 20 29 41.56 -18 04 39.0 45802 568 Cb8005 2000 08 06.31837 20 29 37.36 -18 04 54.2 45802 568 Cb8005 2000 08 06.36419 20 29 37.12 -18 04 54.9 24.0R 45802 568 Cb8005 2000 08 06.40555 20 29 36.93 -18 04 55.6 45802 568 Cb8005 2001 07 25.35182 20 35 52.92 -17 43 17.4 23.5R 45802 568 Cd3308 2001 07 25.40974 20 35 52.67 -17 43 18.4 45802 568 Cd3308 2001 07 25.46294 20 35 52.39 -17 43 19.3 24.0R 45802 568 Cd3308 2001 07 26.38082 20 35 48.06 -17 43 35.6 45802 568 Cd3308 2001 09 20.17230 20 32 02.87 -17 57 55.8 45802 675 Ce0222 2001 09 20.21909 20 32 02.78 -17 57 56.5 24.3R 45802 675 Ce0222 2002 06 07.40825 20 44 15.32 -17 13 03.6 24. R 45802 675 Cf8836 2002 06 07.43601 20 44 15.21 -17 13 04.2 45802 675 Cf8836 2002 06 07.45562 20 44 15.16 -17 13 04.4 45802 675 Cf8836 2022 07 04.374250 22 23 29.850 -09 36 27.38 24.4G 45802 G37 C~5iHB 2022 07 04.439360 22 23 29.707 -09 36 28.15 45802 G37 C~5iHC
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 0.19 0.00 -0.14
2 0.0001 0.00 0.25 0.00 -0.08
3 0.0002 0.00 0.27 0.00 -0.42
4 1.0431 0.00 -0.24 0.00 -0.61
5 1.0432 0.00 -0.10 0.00 -0.66
6 1.0433 0.00 0.06 0.00 -0.53
7 1.0458 0.00 0.11 0.00 -0.44
8 1.0459 0.00 -0.22 0.00 -0.35
9 1.0460 0.00 -0.11 0.00 -0.34
10 2.0123 0.00 -0.04 0.00 0.22
11 2.0125 0.00 0.38 0.00 0.25
12 2.0126 0.00 0.02 0.00 0.28
13 2.0152 0.00 0.02 0.00 0.09
14 2.1679 0.00 -0.27 0.00 0.69
15 2.1680 0.00 0.23 0.00 0.47
16 2.8804 0.00 0.19 0.00 0.86
17 2.8805 0.00 -0.39 0.00 0.51
18 2.8805 0.00 -0.38 0.00 0.49
19 22.9542 0.00 -0.07 0.00 -0.20
20 22.9544 0.00 0.16 0.00 -0.09
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.
45802 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.476 43.476 43.476 ecceobj 0.010 0.010 0.010 incobj 1.178 1.178 1.178 qmin 42.340 42.337 42.341 qmax 44.797 44.802 44.789 amean 43.490 43.490 43.490 amin 43.163 43.162 43.164 amax 43.821 43.821 43.822 emean 0.010 0.010 0.010 emin 0.000 0.000 0.000 emax 0.023 0.023 0.023 imean 2.189 2.189 2.189 imin 1.421 1.421 1.421 imax 2.869 2.869 2.869 excite_mean 0.040 0.040 0.040 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 176.7 176.6 176.7 kozaiamp 179.9 180.0 180.0