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: 02CT154
# Created Thu Apr 25 01:10:36 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 38 observations of 38
# Arc: 20.13y
# First observation: 2001/03/25
# Last observation: 2021/05/12
# Chi-squared of fit: 91.68 DOF: 70 RMS: 0.27
# Min/Max residuals: -0.66 0.77
# Exact a, adot, b, bdot, g, gdot:
1.574021E-05 2.502444E-02 3.391534E-06 1.541936E-03 2.449381E-02 6.094989E-04
# Covariance matrix:
1.2765E-13 -3.9924E-14 2.7147E-15 -2.0790E-15 1.4491E-14 -7.1125E-14
-3.9924E-14 3.0965E-14 -2.3814E-15 1.8239E-15 -2.5027E-14 6.2586E-14
2.7147E-15 -2.3814E-15 8.6980E-14 -5.6803E-15 1.8398E-15 -4.9120E-15
-2.0790E-15 1.8239E-15 -5.6803E-15 7.1912E-16 -1.4095E-15 3.7620E-15
1.4491E-14 -2.5027E-14 1.8398E-15 -1.4095E-15 1.2169E-13 -4.9939E-14
-7.1125E-14 6.2586E-14 -4.9120E-15 3.7620E-15 -4.9939E-14 1.2906E-13
# lat0 lon0 xBary yBary zBary JD0
0.261429 163.109000 -0.371240 0.004091 -0.930402 2451993.689923
# Heliocentric elements and errors
Epoch: 2451994.5000 = 2001/03/26
Mean Anomaly: 16.23009 +/- 0.006
Argument of Peri: 343.67435 +/- 0.007
Long of Asc Node: 159.46919 +/- 0.000
Inclination: 3.53758 +/- 0.000
Eccentricity: 0.11462147 +/- 0.0001
Semi-Major Axis: 46.85578701 +/- 0.0036
Time of Perihelion: 2446712.9474 +/- 2.0
Perihelion: 41.48510779 +/- 0.0041
Aphelion: 52.22646622 +/- 0.0048
Period (y) 320.7400 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.05932361 +/- 0.0006
Ecliptic Y 11.78183676 +/- 0.0002
Ecliptic Z 0.18643632 +/- 0.0000
Ecliptic XDOT -0.00088550 +/- 0.0000
Ecliptic YDOT -0.00265403 +/- 0.0000
Ecliptic ZDOT 0.00017285 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.75636302 +/- 0.0005
Geocenter to KBO 40.82666891 +/- 0.0006
# Hcoef: 7.05
The following table shows the complete astrometric record for 02CT154. 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 (02CT154) followed by the observatory code and reference code for the source of the astrometry.
2001 03 25.18918 10 58 08.00 +06 52 41.7 24.6R 02CT154 695 Cj8745 2002 02 06.40649 11 07 00.61 +06 02 25.2 22.7R 02CT154 695 Cf0336 2002 02 06.49976 11 07 00.24 +06 02 27.8 02CT154 695 Cf0336 2002 02 07.51447 11 06 56.30 +06 02 53.7 02CT154 695 Cf0336 2002 03 05.229242 11 05 05.29 +06 14 55.2 02CT154 645 C~1GH1 2002 03 05.230071 11 05 05.28 +06 14 55.2 02CT154 645 C~1GH1 2002 03 05.232559 11 05 05.27 +06 14 55.4 02CT154 645 C~1GH1 2002 03 14.19060 11 04 24.93 +06 19 16.2 02CT154 696 Cf5529 2002 03 14.20528 11 04 24.88 +06 19 16.8 02CT154 696 Cf5529 2002 03 14.22060 11 04 24.82 +06 19 16.8 02CT154 696 Cf5529 2002 03 20.22230 11 03 58.27 +06 22 07.3 22.3R 02CT154 695 Cf5529 2002 03 20.34667 11 03 57.73 +06 22 11.2 02CT154 695 Cf5529 2002 05 11.89376 11 01 17.34 +06 39 19.9 02CT154 950 Cf4730 2002 05 11.94093 11 01 17.24 +06 39 20.4 02CT154 950 Cf4730 2002 05 11.98899 11 01 17.14 +06 39 21.3 02CT154 950 Cf4730 2002 05 12.89319 11 01 16.10 +06 39 27.9 02CT154 950 Cf4730 2002 05 12.95582 11 01 16.02 +06 39 28.4 02CT154 950 Cf4730 2003 03 30.20052 11 08 44.40 +05 58 07.9 22.4R 02CT154 695 Cj8745 2003 03 30.29729 11 08 43.98 +05 58 10.0 02CT154 695 Cj8745 2013 03 12.26660 12 03 27.03 +01 01 20.6 23.0R 02CT154 695 C~0ucs 2013 03 12.31846 12 03 26.81 +01 01 22.5 02CT154 695 C~0ucs 2013 03 13.28932 12 03 22.61 +01 01 50.8 02CT154 695 C~0ucs 2017 01 23.61026 12 26 47.55 -01 11 26.4 23.1i 02CT154 T09 C~7xIr 2017 01 23.61560 12 26 47.52 -01 11 26.2 23.5i 02CT154 T09 C~7xIr 2017 01 23.62095 12 26 47.52 -01 11 26.0 23.3i 02CT154 T09 C~7xIr 2017 01 26.62885 12 26 42.78 -01 10 46.2 23.1z 02CT154 T09 C~7xIr 2017 01 26.64766 12 26 42.76 -01 10 46.2 23.1z 02CT154 T09 C~7xIs 2017 01 26.65034 12 26 42.75 -01 10 46.2 22.9z 02CT154 T09 C~7xIs 2017 01 26.65302 12 26 42.75 -01 10 46.2 22.6z 02CT154 T09 C~7xIs 2017 01 28.59194 12 26 39.30 -01 10 18.0 23.3z 02CT154 T09 C~7xIs 2017 01 28.60345 12 26 39.28 -01 10 18.0 23.1z 02CT154 T09 C~7xIs 2017 01 28.61418 12 26 39.26 -01 10 17.7 23.3z 02CT154 T09 C~7xIs 2018 04 10.19467 12 27 29.286 -01 08 39.44 23.4R 02CT154 G37 C~2bGQ 2018 04 10.25379 12 27 28.996 -01 08 38.01 02CT154 G37 C~2bGQ 2018 04 10.29097 12 27 28.846 -01 08 36.35 02CT154 G37 C~2bGQ 2021 05 12.173510 12 40 53.080 -02 20 28.84 23.2G 02CT154 G37 C~4pRK 2021 05 12.225340 12 40 52.906 -02 20 27.65 02CT154 G37 C~4pRK 2021 05 12.272770 12 40 52.767 -02 20 26.86 02CT154 G37 C~4pRK
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 -0.11 0.00 -0.49
2 0.8712 0.00 -0.18 0.00 -0.08
3 0.8715 0.00 -0.21 0.00 0.15
4 0.8743 0.00 0.05 0.00 0.05
5 0.9447 0.00 -0.24 0.00 -0.64
6 0.9447 0.00 -0.33 0.00 -0.66
7 0.9447 0.00 -0.31 0.00 -0.53
8 0.9692 0.00 0.30 0.00 -0.02
9 0.9692 0.00 0.54 0.00 0.16
10 0.9693 0.00 0.69 0.00 -0.28
11 0.9857 0.00 -0.19 0.00 -0.07
12 0.9861 0.00 -0.03 0.00 0.36
13 1.1299 0.00 0.54 0.00 0.13
14 1.1301 0.00 -0.03 0.00 0.25
15 1.1302 0.00 -0.60 0.00 0.77
16 1.1327 0.00 -0.10 0.00 0.29
17 1.1328 0.00 -0.14 0.00 0.32
18 2.0124 0.00 0.28 0.00 0.39
19 2.0126 0.00 0.01 0.00 -0.06
20 11.9646 0.00 -0.12 0.00 -0.04
21 11.9648 0.00 0.01 0.00 0.34
22 11.9674 0.00 0.30 0.00 0.03
23 15.8341 0.00 0.10 0.00 -0.17
24 15.8342 0.00 -0.23 0.00 -0.04
25 15.8342 0.00 -0.11 0.00 0.10
26 15.8424 0.00 -0.20 0.00 0.19
27 15.8425 0.00 0.00 0.00 -0.07
28 15.8425 0.00 -0.08 0.00 -0.11
29 15.8425 0.00 -0.01 0.00 -0.14
30 15.8478 0.00 -0.12 0.00 0.01
31 15.8478 0.00 -0.09 0.00 -0.16
32 15.8478 0.00 -0.08 0.00 -0.02
33 17.0431 0.00 0.46 0.00 0.01
34 17.0433 0.00 -0.06 0.00 -0.19
35 17.0434 0.00 0.10 0.00 0.44
36 20.1314 0.00 0.03 0.00 -0.16
37 20.1315 0.00 -0.10 0.00 0.06
38 20.1316 0.00 0.08 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.
02CT154 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.638 46.638 46.638 ecceobj 0.111 0.111 0.111 incobj 3.542 3.542 3.542 qmin 40.768 40.758 40.778 qmax 53.261 53.280 53.275 amean 46.861 46.861 46.861 amin 46.465 46.469 46.460 amax 47.293 47.297 47.306 emean 0.114 0.114 0.114 emin 0.101 0.101 0.101 emax 0.127 0.127 0.127 imean 3.115 3.115 3.115 imin 2.705 2.705 2.706 imax 3.485 3.485 3.485 excite_mean 0.126 0.126 0.126 fracstop 1.000 1.000 1.000 cjmean 3.117 3.117 3.117 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 174.4 174.4 174.4 kozaiamp 180.0 180.0 180.0