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: 01DD106
# Created Sat Apr 20 01:10:25 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 25 observations of 25
# Arc: 19.00y
# First observation: 2001/02/28
# Last observation: 2020/02/28
# Chi-squared of fit: 21.96 DOF: 44 RMS: 0.17
# Min/Max residuals: -0.36 0.47
# Exact a, adot, b, bdot, g, gdot:
1.571627E-05 2.591036E-02 -1.483934E-07 6.555798E-04 2.529535E-02 1.333221E-03
# Covariance matrix:
2.0474E-13 -2.4082E-14 1.1111E-15 -3.7832E-16 1.5872E-13 -2.6637E-14
-2.4082E-14 2.3010E-14 -6.8368E-16 5.6938E-16 7.0868E-14 4.4199E-14
1.1111E-15 -6.8368E-16 1.3354E-13 -8.4691E-15 -1.9060E-17 -1.3208E-15
-3.7832E-16 5.6938E-16 -8.4691E-15 9.6057E-16 1.9157E-15 1.1425E-15
1.5872E-13 7.0868E-14 -1.9060E-17 1.9157E-15 9.5325E-13 1.5819E-13
-2.6637E-14 4.4199E-14 -1.3208E-15 1.1425E-15 1.5819E-13 8.8901E-14
# lat0 lon0 xBary yBary zBary JD0
1.132194 160.848260 0.016059 0.019499 -0.992485 2451968.605723
# Heliocentric elements and errors
Epoch: 2451968.5000 = 2001/02/28
Mean Anomaly: 30.60994 +/- 0.035
Argument of Peri: 0.35435 +/- 0.042
Long of Asc Node: 123.56348 +/- 0.002
Inclination: 1.82412 +/- 0.000
Eccentricity: 0.09700790 +/- 0.0001
Semi-Major Axis: 44.08108681 +/- 0.0073
Time of Perihelion: 2442879.0663 +/- 10.5
Perihelion: 39.80487308 +/- 0.0078
Aphelion: 48.35730055 +/- 0.0090
Period (y) 292.6757 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.26615546 +/- 0.0014
Ecliptic Y 13.31247252 +/- 0.0005
Ecliptic Z 0.78110559 +/- 0.0000
Ecliptic XDOT -0.00106333 +/- 0.0000
Ecliptic YDOT -0.00259914 +/- 0.0000
Ecliptic ZDOT 0.00007398 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.52317740 +/- 0.0014
Geocenter to KBO 39.53295254 +/- 0.0015
# Hcoef: 7.28
The following table shows the complete astrometric record for 01DD106. 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 (01DD106) followed by the observatory code and reference code for the source of the astrometry.
2001 02 28.10498 10 51 02.45 +08 32 45.4 22.2R 01DD106 809 Cd0833 2001 02 28.19542 10 51 02.01 +08 32 48.0 01DD106 809 Cd0833 2001 02 28.24344 10 51 01.77 +08 32 49.4 01DD106 809 Cd0833 2001 02 28.28991 10 51 01.55 +08 32 51.0 01DD106 809 Cd0833 2001 03 01.13639 10 50 57.56 +08 33 15.5 01DD106 809 Cd0833 2001 03 01.27480 10 50 56.91 +08 33 19.6 01DD106 809 Cd0833 2003 04 01.21285 10 59 50.69 +07 43 27.3 23.0R 01DD106 695 Ci2123 2003 04 01.30936 10 59 50.29 +07 43 29.8 01DD106 695 Ci2123 2003 05 29.98660 10 57 49.53 +07 54 45.5 21.9R 01DD106 807 Ci2123 2003 05 31.01850 10 57 49.96 +07 54 41.7 01DD106 807 Ci2123 2005 03 09.30623 11 12 34.77 +06 28 32.5 23.3R 01DD106 695 Cn0169 2005 03 10.29578 11 12 30.19 +06 29 01.8 01DD106 695 Cn0169 2005 03 10.39728 11 12 29.72 +06 29 05.0 01DD106 695 Cn0169 2013 03 14.27609 11 55 19.58 +02 09 47.2 23.5R 01DD106 695 C~0ucq 2013 03 14.38612 11 55 19.05 +02 09 50.0 01DD106 695 C~0ucq 2013 03 14.44625 11 55 18.79 +02 09 52.1 01DD106 695 C~0ucq 2015 03 23.19230 12 05 15.06 +01 08 36.9 23.8R 01DD106 695 C~1Q3A 2015 03 23.25647 12 05 14.75 +01 08 39.0 01DD106 695 C~1Q3A 2015 03 23.31520 12 05 14.47 +01 08 40.7 01DD106 695 C~1Q3A 2020 02 26.37491 12 33 02.61 -01 44 39.1 23.9r 01DD106 W84 C~3iB9 2020 02 27.21997 12 32 59.50 -01 44 17.5 01DD106 W84 C~3iB9 2020 02 27.26973 12 32 59.31 -01 44 16.2 01DD106 W84 C~3iB9 2020 02 27.36938 12 32 58.91 -01 44 13.8 01DD106 W84 C~3iB9 2020 02 28.22598 12 32 55.73 -01 43 51.7 01DD106 W84 C~3iB9 2020 02 28.37945 12 32 55.15 -01 43 47.8 01DD106 W84 C~3iB9
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 0.14 0.00 0.07
2 0.0002 0.00 0.05 0.00 0.02
3 0.0004 0.00 -0.09 0.00 0.01
4 0.0005 0.00 -0.04 0.00 0.26
5 0.0028 0.00 -0.08 0.00 0.01
6 0.0032 0.00 0.15 0.00 0.06
7 2.0865 0.00 -0.04 0.00 -0.12
8 2.0868 0.00 -0.06 0.00 0.01
9 2.2475 0.00 0.03 0.00 -0.36
10 2.2503 0.00 -0.05 0.00 0.14
11 4.0252 0.00 -0.33 0.00 -0.28
12 4.0279 0.00 -0.03 0.00 -0.26
13 4.0282 0.00 0.11 0.00 -0.06
14 12.0388 0.00 0.31 0.00 0.47
15 12.0391 0.00 -0.05 0.00 -0.02
16 12.0393 0.00 0.20 0.00 0.28
17 14.0618 0.00 0.17 0.00 -0.00
18 14.0620 0.00 -0.06 0.00 0.19
19 14.0622 0.00 -0.21 0.00 0.15
20 18.9932 0.00 0.10 0.00 -0.22
21 18.9955 0.00 0.06 0.00 -0.05
22 18.9957 0.00 0.04 0.00 -0.02
23 18.9959 0.00 -0.30 0.00 -0.16
24 18.9983 0.00 -0.10 0.00 -0.03
25 18.9987 0.00 0.04 0.00 -0.08
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.
01DD106 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.896 43.896 43.896 ecceobj 0.094 0.094 0.094 incobj 1.825 1.825 1.825 qmin 38.740 38.745 38.747 qmax 49.723 49.693 49.712 amean 44.072 44.072 44.071 amin 43.714 43.709 43.715 amax 44.467 44.459 44.469 emean 0.100 0.100 0.100 emin 0.082 0.082 0.082 emax 0.118 0.118 0.118 imean 1.275 1.275 1.275 imin 0.315 0.315 0.315 imax 2.010 2.010 2.010 excite_mean 0.103 0.103 0.103 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 181.8 181.8 181.7 kozaiamp 180.0 180.0 180.0