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: 88268
# Created Wed Dec 25 02:06:46 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 41 observations of 41
# Arc: 3.01y
# First observation: 2001/05/24
# Last observation: 2004/05/28
# Chi-squared of fit: 51.77 DOF: 76 RMS: 0.20
# Min/Max residuals: -0.43 1.01
# Exact a, adot, b, bdot, g, gdot:
1.486389E-05 2.351367E-02 2.378424E-07 -7.322996E-04 2.425479E-02 -3.241254E-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
0.633693 -112.052387 0.087498 0.011103 -1.015274 2452053.678343
# Heliocentric elements and errors
Epoch: 2452054.5000 = 2001/05/25
Mean Anomaly: 271.50400 +/- 0.000
Argument of Peri: 251.14910 +/- 0.000
Long of Asc Node: 86.94149 +/- 0.000
Inclination: 1.88880 +/- 0.000
Eccentricity: 0.01544551 +/- 0.0000
Semi-Major Axis: 42.24507728 +/- 0.0000
Time of Perihelion: 2476708.2919 +/- 0.0
Perihelion: 41.59258063 +/- 0.0000
Aphelion: 42.89757393 +/- 0.0000
Period (y) 274.5822 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -15.93693508 +/- 0.0000
Ecliptic Y -39.11342405 +/- 0.0000
Ecliptic Z 0.45599207 +/- 0.0000
Ecliptic XDOT 0.00246500 +/- 0.0000
Ecliptic YDOT -0.00096119 +/- 0.0000
Ecliptic ZDOT -0.00008287 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.23807038 +/- 0.0000
Geocenter to KBO 41.22901108 +/- 0.0000
# Hcoef: 6.30
The following table shows the complete astrometric record for 88268. 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 (88268) followed by the observatory code and reference code for the source of the astrometry.
2001 05 24.17760 16 25 08.75 -21 00 30.6 21.9R 88268 807 Cd1817 2001 05 24.23982 16 25 08.42 -21 00 29.7 88268 807 Cd1817 2001 06 10.04828 16 23 44.00 -20 57 24.5 22.6R 88268 304 Cd1817 2001 06 10.12318 16 23 43.63 -20 57 23.8 88268 304 Cd1817 2001 08 19.05290 16 20 15.12 -20 50 27.4 21.2R 88268 807 Ce6595 2001 08 20.06310 16 20 15.05 -20 50 28.9 88268 807 Ce6595 2001 08 21.06696 16 20 15.09 -20 50 29.7 88268 807 Ce6595 2002 04 11.41877 16 33 51.45 -21 21 55.4 21.7R 88268 695 Cg5781 2002 04 11.46412 16 33 51.31 -21 21 55.2 88268 695 Cg5781 2002 04 11.54235 16 33 51.10 -21 21 54.7 22.0R 88268 568 Cf7160 2002 04 11.61652 16 33 50.86 -21 21 54.2 88268 568 Cf7160 2002 05 13.05928 16 31 44.67 -21 17 28.7 88268 950 Cf7160 2002 05 13.12864 16 31 44.32 -21 17 28.0 88268 950 Cf7160 2002 05 13.15942 16 31 44.17 -21 17 27.7 88268 950 Cf7160 2002 07 09.99552 16 27 11.47 -21 08 09.8 21.7R 88268 304 Cf9823 2002 07 10.16081 16 27 10.85 -21 08 08.7 88268 304 Cf9823 2002 07 12.03462 16 27 04.08 -21 07 55.5 88268 304 Cf9823 2002 07 12.05354 16 27 04.05 -21 07 55.3 88268 304 Cf9823 2002 07 12.99742 16 27 00.69 -21 07 48.7 88268 304 Cf9823 2002 07 13.05354 16 27 00.49 -21 07 48.5 88268 304 Cf9823 2003 05 31.49144 16 35 55.59 -21 28 44.6 23.1R 88268 568 Ci1422 2003 06 01.45366 16 35 50.73 -21 28 35.0 88268 568 Ci1422 2004 04 22.50461 16 44 33.95 -21 47 44.4 22.7R 88268 568 Ck9562 2004 04 22.59615 16 44 33.61 -21 47 43.8 88268 568 Ck9562 2004 05 25.20473 16 42 06.98 -21 43 18.5 22.7R 88268 304 Ck8652 2004 05 25.20641 16 42 06.96 -21 43 18.4 88268 304 Ck8652 2004 05 25.20803 16 42 06.96 -21 43 18.4 88268 304 Ck8652 2004 05 25.20926 16 42 06.96 -21 43 18.5 88268 304 Ck8652 2004 05 25.21047 16 42 06.94 -21 43 18.5 88268 304 Ck8652 2004 05 25.21205 16 42 06.94 -21 43 18.4 88268 304 Ck8652 2004 05 25.21373 16 42 06.93 -21 43 18.4 88268 304 Ck8652 2004 05 25.21541 16 42 06.92 -21 43 18.5 88268 304 Ck8652 2004 05 25.21708 16 42 06.91 -21 43 18.4 88268 304 Ck8652 2004 05 25.21887 16 42 06.89 -21 43 18.2 88268 304 Ck8652 2004 05 25.22054 16 42 06.91 -21 43 18.4 88268 304 Ck8652 2004 05 28.02954 16 41 52.68 -21 42 52.7 22.5R 88268 304 Ck8652 2004 05 28.05155 16 41 52.57 -21 42 52.5 88268 304 Ck8652 2004 05 28.07413 16 41 52.46 -21 42 52.3 88268 304 Ck8652 2004 05 28.09696 16 41 52.34 -21 42 52.3 88268 304 Ck8652 2004 05 28.12025 16 41 52.24 -21 42 51.9 88268 304 Ck8652 2004 05 28.17352 16 41 51.95 -21 42 51.4 88268 304 Ck8652
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 0.08 0.00 -0.16
2 0.0002 0.00 -0.10 0.00 0.05
3 0.0462 0.00 -0.05 0.00 0.03
4 0.0464 0.00 0.02 0.00 -0.06
5 0.2379 0.00 -0.17 0.00 -0.07
6 0.2406 0.00 -0.10 0.00 -0.43
7 0.2434 0.00 0.09 0.00 0.13
8 0.8822 0.00 -0.04 0.00 0.07
9 0.8824 0.00 -0.06 0.00 -0.02
10 0.8826 0.00 0.24 0.00 -0.05
11 0.8828 0.00 0.06 0.00 -0.03
12 0.9689 0.00 0.10 0.00 -0.07
13 0.9691 0.00 -0.08 0.00 -0.06
14 0.9691 0.00 -0.08 0.00 -0.07
15 1.1275 0.00 -0.00 0.00 0.04
16 1.1279 0.00 0.03 0.00 -0.05
17 1.1331 0.00 0.00 0.00 -0.08
18 1.1331 0.00 0.58 0.00 -0.01
19 1.1357 0.00 -0.04 0.00 0.13
20 1.1359 0.00 -0.04 0.00 -0.04
21 2.0187 0.00 -0.38 0.00 0.87
22 2.0213 0.00 0.09 0.00 1.01
23 2.9140 0.00 0.04 0.00 0.10
24 2.9142 0.00 0.08 0.00 0.09
25 3.0035 0.00 0.09 0.00 -0.09
26 3.0035 0.00 -0.08 0.00 -0.00
27 3.0035 0.00 0.04 0.00 -0.02
28 3.0035 0.00 0.14 0.00 -0.13
29 3.0035 0.00 -0.07 0.00 -0.14
30 3.0035 0.00 0.05 0.00 -0.06
31 3.0035 0.00 0.03 0.00 -0.07
32 3.0035 0.00 0.01 0.00 -0.19
33 3.0035 0.00 -0.01 0.00 -0.10
34 3.0035 0.00 -0.17 0.00 0.08
35 3.0035 0.00 0.26 0.00 -0.13
36 3.0112 0.00 -0.20 0.00 -0.06
37 3.0113 0.00 -0.16 0.00 -0.05
38 3.0114 0.00 -0.07 0.00 -0.05
39 3.0114 0.00 -0.11 0.00 -0.25
40 3.0115 0.00 0.18 0.00 -0.06
41 3.0116 0.00 -0.05 0.00 -0.04
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.
88268 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.273 42.272 42.273 ecceobj 0.018 0.018 0.018 incobj 1.889 1.889 1.889 qmin 40.637 40.622 40.658 qmax 44.601 44.562 44.624 amean 42.532 42.532 42.532 amin 42.204 42.204 42.204 amax 42.861 42.864 42.868 emean 0.023 0.023 0.023 emin 0.000 0.001 0.000 emax 0.041 0.040 0.041 imean 1.189 1.189 1.189 imin 0.518 0.518 0.518 imax 1.780 1.782 1.781 excite_mean 0.032 0.032 0.032 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 185.8 185.8 185.7 kozaiamp 180.0 180.0 179.9