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: 02CS154
# Created Sun Dec 22 02:08:20 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 24 observations of 24
# Arc: 20.07y
# First observation: 2002/02/06
# Last observation: 2022/03/02
# Chi-squared of fit: 63.31 DOF: 42 RMS: 0.29
# Min/Max residuals: -0.60 1.03
# Exact a, adot, b, bdot, g, gdot:
1.545687E-05 2.360725E-02 -1.056067E-06 1.357991E-04 2.418096E-02 -8.466939E-04
# Covariance matrix:
3.0722E-13 1.8341E-15 -3.0480E-16 3.1876E-17 4.0686E-13 1.6271E-14
1.8341E-15 1.3998E-14 -1.2782E-16 7.5995E-17 5.1871E-14 2.7954E-14
-3.0480E-16 -1.2782E-16 1.1528E-13 -7.4511E-15 -9.3591E-16 -2.7043E-16
3.1876E-17 7.5995E-17 -7.4511E-15 9.9006E-16 2.5839E-16 1.6375E-16
4.0686E-13 5.1871E-14 -9.3591E-16 2.5839E-16 9.4496E-13 1.0412E-13
1.6271E-14 2.7954E-14 -2.7043E-16 1.6375E-16 1.0412E-13 6.0144E-14
# lat0 lon0 xBary yBary zBary JD0
1.152746 160.753436 0.385837 0.018112 -0.904303 2452311.867653
# Heliocentric elements and errors
Epoch: 2452312.5000 = 2002/02/07
Mean Anomaly: 302.21229 +/- 0.106
Argument of Peri: 135.86886 +/- 0.119
Long of Asc Node: 87.00471 +/- 0.004
Inclination: 1.17812 +/- 0.000
Eccentricity: 0.04853465 +/- 0.0001
Semi-Major Axis: 43.30610342 +/- 0.0070
Time of Perihelion: 2469021.6783 +/- 37.3
Perihelion: 41.20425689 +/- 0.0072
Aphelion: 45.40794994 +/- 0.0078
Period (y) 284.9915 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.76130381 +/- 0.0016
Ecliptic Y 14.29659723 +/- 0.0006
Ecliptic Z 0.83193747 +/- 0.0000
Ecliptic XDOT -0.00079880 +/- 0.0000
Ecliptic YDOT -0.00255588 +/- 0.0000
Ecliptic ZDOT 0.00001366 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.26166542 +/- 0.0015
Geocenter to KBO 41.35490287 +/- 0.0017
# Hcoef: 7.07
The following table shows the complete astrometric record for 02CS154. 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 (02CS154) followed by the observatory code and reference code for the source of the astrometry.
2002 02 06.36691 10 50 43.06 +08 36 03.5 22.5R 02CS154 695 Cf0336 2002 02 06.46381 10 50 42.65 +08 36 06.3 02CS154 695 Cf0336 2002 02 08.46680 10 50 34.35 +08 36 58.3 02CS154 695 Cf0336 2002 03 12.235388 10 48 11.98 +08 51 31.0 22.8V 02CS154 645 C~2Jx6 2002 03 12.236217 10 48 11.98 +08 51 31.1 22.4V 02CS154 645 C~2Jx6 2002 03 12.238705 10 48 11.98 +08 51 31.0 23.1V 02CS154 645 C~2Jx6 2002 03 15.30630 10 47 58.32 +08 52 53.5 23.4R 02CS154 662 Cf2717 2002 03 15.37741 10 47 57.95 +08 52 54.5 02CS154 662 Cf2717 2003 03 30.21411 10 52 02.05 +08 28 33.5 23.0R 02CS154 695 Ch8254 2003 03 30.30970 10 52 01.68 +08 28 35.8 02CS154 695 Ch8254 2003 03 31.20634 10 51 58.14 +08 28 56.6 02CS154 695 Ch8254 2004 02 22.34411 10 59 46.98 +07 41 30.7 23.4R 02CS154 695 Ck0860 2004 02 22.39589 10 59 46.75 +07 41 32.2 02CS154 695 Ck0860 2013 03 12.25518 11 44 07.78 +03 01 56.0 22.7R 02CS154 695 C~0ucs 2013 03 12.30559 11 44 07.54 +03 01 57.2 02CS154 695 C~0ucs 2013 03 13.27792 11 44 03.16 +03 02 26.1 02CS154 695 C~0ucs 2015 03 23.18333 11 53 33.37 +02 00 48.1 23.3R 02CS154 695 C~1Q3B 2015 03 23.24690 11 53 33.10 +02 00 49.9 02CS154 695 C~1Q3B 2015 03 23.30617 11 53 32.82 +02 00 51.6 02CS154 695 C~1Q3B 2018 04 10.18050 12 07 35.376 +00 29 12.37 23.6R 02CS154 G37 C~2bGQ 2018 04 10.23253 12 07 35.135 +00 29 12.85 02CS154 G37 C~2bGQ 2022 03 02.399380 12 30 57.820 -02 03 13.56 23.4G 02CS154 G37 C~5Rjy 2022 03 02.439000 12 30 57.708 -02 03 12.39 02CS154 G37 C~5Rjy 2022 03 02.480260 12 30 57.498 -02 03 11.34 02CS154 G37 C~5Rjy
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 0.09 0.00 0.22
2 0.0003 0.00 0.02 0.00 0.52
3 0.0057 0.00 0.22 0.00 0.27
4 0.0927 0.00 -0.17 0.00 -0.23
5 0.0927 0.00 -0.11 0.00 -0.16
6 0.0927 0.00 0.06 0.00 -0.32
7 0.1011 0.00 0.16 0.00 0.34
8 0.1013 0.00 -0.60 0.00 -0.54
9 1.1413 0.00 0.02 0.00 -0.02
10 1.1415 0.00 0.25 0.00 0.04
11 1.1440 0.00 -0.00 0.00 -0.00
12 2.0424 0.00 -0.09 0.00 -0.26
13 2.0425 0.00 -0.01 0.00 -0.21
14 11.0935 0.00 0.16 0.00 0.16
15 11.0936 0.00 0.03 0.00 -0.12
16 11.0963 0.00 0.08 0.00 0.24
17 13.1220 0.00 -0.29 0.00 0.03
18 13.1222 0.00 0.02 0.00 -0.02
19 13.1224 0.00 -0.11 0.00 -0.05
20 16.1720 0.00 0.42 0.00 1.03
21 16.1721 0.00 0.17 0.00 0.11
22 20.0658 0.00 -0.38 0.00 -0.41
23 20.0659 0.00 0.33 0.00 -0.28
24 20.0660 0.00 -0.33 0.00 -0.31
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.
02CS154 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.013 43.013 43.013 ecceobj 0.046 0.046 0.046 incobj 1.178 1.178 1.178 qmin 40.486 40.490 40.485 qmax 46.093 46.123 46.077 amean 43.198 43.198 43.198 amin 42.869 42.869 42.866 amax 43.540 43.542 43.543 emean 0.040 0.040 0.040 emin 0.021 0.021 0.021 emax 0.059 0.059 0.059 imean 1.115 1.115 1.115 imin 0.071 0.071 0.071 imax 1.696 1.697 1.697 excite_mean 0.045 0.045 0.045 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 168.7 168.5 168.7 kozaiamp 180.0 180.0 180.0