The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 24952
# Created Fri May 2 02:36:16 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 31 observations of 31
# Arc: 3.02y
# First observation: 1997/08/28
# Last observation: 2000/09/05
# Chi-squared of fit: 176.60 DOF: 56 RMS: 0.42
# Min/Max residuals: -1.06 1.72
# Exact a, adot, b, bdot, g, gdot:
1.791698E-05 3.104914E-02 4.870093E-06 9.080675E-03 2.938173E-02 -6.190553E-03
# 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
2.782397 -3.416374 0.363249 0.045105 -0.932105 2450689.006021
# Heliocentric elements and errors
Epoch: 2450690.5000 = 1997/08/30
Mean Anomaly: 312.36322 +/- 0.000
Argument of Peri: 80.38985 +/- 0.000
Long of Asc Node: 346.80671 +/- 0.000
Inclination: 16.51972 +/- 0.000
Eccentricity: 0.22804846 +/- 0.0000
Semi-Major Axis: 39.65870384 +/- 0.0000
Time of Perihelion: 2462761.5803 +/- 0.0
Perihelion: 30.61459770 +/- 0.0000
Aphelion: 48.70280999 +/- 0.0000
Period (y) 249.7560 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.85161618 +/- 0.0000
Ecliptic Y -2.44792104 +/- 0.0000
Ecliptic Z 1.65232457 +/- 0.0000
Ecliptic XDOT -0.00043924 +/- 0.0000
Ecliptic YDOT 0.00293236 +/- 0.0000
Ecliptic ZDOT 0.00081701 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 34.97664826 +/- 0.0000
Geocenter to KBO 34.03490535 +/- 0.0000
# Hcoef: 7.45
The following table shows the complete astrometric record for 24952. 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 (24952) followed by the observatory code and reference code for the source of the astrometry.
1997 08 28.50529 23 43 02.39 +01 11 43.2 22.5R 24952 568 C30562 1997 08 28.55573 23 43 02.15 +01 11 42.2 24952 568 C30562 1997 08 28.60615 23 43 01.87 +01 11 40.8 24952 568 C30562 1997 08 29.46954 23 42 57.51 +01 11 19.0 24952 568 C30562 1997 08 29.53183 23 42 57.21 +01 11 17.2 24952 568 C30562 1997 09 01.38251 23 42 42.65 +01 10 03.9 24952 568 C30562 1997 09 01.43666 23 42 42.34 +01 10 02.6 24952 568 C30562 1997 09 01.48696 23 42 42.10 +01 10 01.2 24952 568 C30562 1997 09 23.26250 23 40 45.53 +00 59 38.2 24952 568 Ca0017 1997 09 23.28657 23 40 45.41 +00 59 37.2 24952 568 Ca0017 1997 09 23.37229 23 40 44.93 +00 59 35.0 24952 568 Ca0017 1997 09 24.29292 23 40 39.96 +00 59 07.5 24952 568 Ca0017 1997 09 24.33328 23 40 39.75 +00 59 06.1 24952 568 Ca0017 1997 09 27.18766 23 40 24.43 +00 57 40.3 22.9R 24952 696 Ca0017 1997 09 27.29770 23 40 23.86 +00 57 37.8 22.8R 24952 696 Ca0017 1997 10 05.17781 23 39 42.69 +00 53 43.7 22.5R 24952 675 Ca0017 1997 10 05.31057 23 39 42.00 +00 53 39.9 24952 675 Ca0017 1998 05 31.55103 23 51 00.72 +02 21 53.9 22.6R 24952 568 Ca1944 1998 05 31.58899 23 51 00.84 +02 21 55.1 24952 568 Ca1944 1998 06 29.52388 23 51 40.45 +02 31 38.5 24952 568 Ca1697 1998 06 29.60606 23 51 40.44 +02 31 39.4 24952 568 Ca1698 1998 06 30.58512 23 51 40.28 +02 31 49.4 24952 568 Ca1698 1999 11 09.15749 23 48 45.37 +03 02 19.8 24952 696 Ca7284 1999 11 09.21927 23 48 45.15 +03 02 18.5 23.0 24952 696 Ca7284 1999 11 09.26580 23 48 45.00 +03 02 17.8 24952 696 Ca7284 1999 11 10.07780 23 48 42.41 +03 02 00.5 24952 696 Ca7284 1999 11 10.12528 23 48 42.30 +03 01 59.3 24952 696 Ca7284 2000 09 05.11620 23 59 55.37 +04 45 43.3 22.6R 24952 309 Cc7361 2000 09 05.12810 23 59 55.31 +04 45 42.9 23.0V 24952 309 Cc7361 2000 09 05.13293 23 59 55.29 +04 45 42.5 22.2I 24952 309 Cc7361 2000 09 05.13769 23 59 55.27 +04 45 42.6 22.5R 24952 309 Cc7361
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 -0.22 0.00 -1.06 2 0.0001 0.00 0.10 0.00 0.19 3 0.0003 0.00 -0.24 0.00 0.06 4 0.0026 0.00 -0.53 0.00 0.06 5 0.0028 0.00 -0.21 0.00 -0.15 6 0.0106 0.00 -0.23 0.00 0.32 7 0.0108 0.00 -0.62 0.00 0.44 8 0.0109 0.00 -0.24 0.00 0.37 9 0.0705 0.00 -0.08 0.00 -0.03 10 0.0706 0.00 0.09 0.00 -0.31 11 0.0708 0.00 -0.06 0.00 0.05 12 0.0733 0.00 -0.32 0.00 0.07 13 0.0735 0.00 -0.16 0.00 -0.13 14 0.0813 0.00 -0.44 0.00 -0.52 15 0.0816 0.00 -0.03 0.00 0.26 16 0.1031 0.00 1.70 0.00 -0.19 17 0.1035 0.00 1.72 0.00 -0.10 18 0.7558 0.00 0.11 0.00 -0.06 19 0.7559 0.00 0.33 0.00 0.03 20 0.8351 0.00 0.11 0.00 -0.16 21 0.8353 0.00 0.21 0.00 -0.14 22 0.8380 0.00 0.35 0.00 -0.23 23 2.1975 0.00 0.13 0.00 0.25 24 2.1977 0.00 -0.12 0.00 0.25 25 2.1978 0.00 -0.08 0.00 0.53 26 2.2001 0.00 -0.70 0.00 0.13 27 2.2002 0.00 -0.06 0.00 -0.09 28 3.0215 0.00 0.03 0.00 0.02 29 3.0216 0.00 0.08 0.00 -0.07 30 3.0216 0.00 0.17 0.00 -0.35 31 3.0216 0.00 0.24 0.00 -0.13
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.
24952 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.717 39.717 39.717 ecceobj 0.231 0.231 0.231 incobj 16.536 16.536 16.536 qmin 28.724 28.740 28.720 qmax 50.690 50.691 50.688 amean 39.454 39.454 39.454 amin 38.987 38.987 38.988 amax 39.970 39.976 39.959 emean 0.244 0.244 0.244 emin 0.214 0.213 0.214 emax 0.270 0.270 0.270 imean 16.340 16.341 16.341 imin 15.195 15.194 15.195 imax 17.474 17.474 17.474 fracstop 1.000 1.000 1.000 cjmean 2.893 2.893 2.893 libcent 0 180.1 180.5 180.2 libamp 0 79.2 79.6 79.2 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 88.0 88.0 88.0 kozaiamp 17.8 17.8 17.8