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: 07DS101
# Created Sun Nov 24 02:08:54 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 35 observations of 35
# Arc: 18.10y
# First observation: 2005/02/10
# Last observation: 2023/03/18
# Chi-squared of fit: 53.37 DOF: 64 RMS: 0.22
# Min/Max residuals: -0.61 0.50
# Exact a, adot, b, bdot, g, gdot:
1.370393E-05 2.134997E-02 -1.220828E-07 -1.907495E-04 2.292314E-02 -1.849656E-03
# Covariance matrix:
1.0841E-13 -3.9398E-14 -2.2298E-16 3.2759E-16 4.9407E-14 -8.8893E-14
-3.9398E-14 2.9920E-14 2.7147E-16 -2.6927E-16 -1.1557E-14 7.2692E-14
-2.2298E-16 2.7147E-16 6.2120E-14 -4.5900E-15 7.1736E-16 6.4670E-16
3.2759E-16 -2.6927E-16 -4.5900E-15 9.6815E-16 1.3830E-16 -6.7731E-16
4.9407E-14 -1.1557E-14 7.1736E-16 1.3830E-16 2.8821E-13 -4.0979E-14
-8.8893E-14 7.2692E-14 6.4670E-16 -6.7731E-16 -4.0979E-14 1.8300E-13
# lat0 lon0 xBary yBary zBary JD0
1.319070 138.223140 -0.055207 0.022719 -0.981729 2453411.813023
# Heliocentric elements and errors
Epoch: 2453412.5000 = 2005/02/11
Mean Anomaly: 269.80991 +/- 0.060
Argument of Peri: 211.71487 +/- 0.047
Long of Asc Node: 26.68167 +/- 0.003
Inclination: 1.38747 +/- 0.000
Eccentricity: 0.08695862 +/- 0.0000
Semi-Major Axis: 44.26322264 +/- 0.0041
Time of Perihelion: 2480360.0516 +/- 21.1
Perihelion: 40.41415374 +/- 0.0039
Aphelion: 48.11229153 +/- 0.0046
Period (y) 294.4915 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -33.29760162 +/- 0.0008
Ecliptic Y 29.66862697 +/- 0.0007
Ecliptic Z 1.00421586 +/- 0.0000
Ecliptic XDOT -0.00153473 +/- 0.0000
Ecliptic YDOT -0.00205560 +/- 0.0000
Ecliptic ZDOT -0.00002779 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.60909245 +/- 0.0007
Geocenter to KBO 43.62412938 +/- 0.0010
# Hcoef: 6.62
The following table shows the complete astrometric record for 07DS101. 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 (07DS101) followed by the observatory code and reference code for the source of the astrometry.
2005 02 10.31228 09 24 20.03 +16 37 20.4 23.5g 07DS101 568 C~0VEW 2005 02 10.39529 09 24 19.64 +16 37 22.3 23.9g 07DS101 568 C~0VEW 2005 02 10.43481 09 24 19.45 +16 37 23.2 23.5g 07DS101 568 C~0VEW 2005 02 15.33591 09 23 56.73 +16 39 08.0 23.3g 07DS101 568 C~0VEW 2005 03 10.247691 09 22 18.18 +16 46 28.5 22.8V 07DS101 645 C~2KuA 2005 03 10.248520 09 22 18.17 +16 46 28.7 22.0V 07DS101 645 C~2KuA 2005 03 10.251008 09 22 18.15 +16 46 28.6 23.8V 07DS101 645 C~2KuA 2005 04 12.26136 09 20 45.61 +16 52 46.8 23.1i 07DS101 568 C~0VEW 2005 04 12.34223 09 20 45.47 +16 52 47.0 23.3i 07DS101 568 C~0VEW 2005 04 12.36980 09 20 45.43 +16 52 47.2 23.2i 07DS101 568 C~0VEW 2006 02 03.48138 09 29 43.82 +16 11 05.6 07DS101 568 C~0VEW 2006 02 06.33314 09 29 30.61 +16 12 09.0 23.0r 07DS101 568 C~0VEW 2006 02 06.37393 09 29 30.43 +16 12 09.8 22.8r 07DS101 568 C~0VEW 2006 02 06.41210 09 29 30.27 +16 12 10.8 22.9r 07DS101 568 C~0VEW 2006 11 23.52174 09 37 59.15 +15 28 48.1 07DS101 695 C~0VEW 2006 11 25.47919 09 37 58.78 +15 28 53.3 07DS101 695 C~0VEW 2007 02 14.46607 09 33 44.56 +15 50 57.6 23.2r 07DS101 568 C~0Vn4 2007 02 14.46984 09 33 44.53 +15 50 57.8 22.7r 07DS101 568 C~0VEW 2007 02 14.50376 09 33 44.38 +15 50 58.7 22.9r 07DS101 568 C~0VEW 2007 02 14.53694 09 33 44.22 +15 50 59.3 22.8r 07DS101 568 C~0VEW 2007 02 15.48068 09 33 39.85 +15 51 20.5 23.0r 07DS101 568 C~0VEW 2007 02 18.31004 09 33 26.84 +15 52 22.9 22.9R 07DS101 568 Cu1674 2007 02 18.32535 09 33 26.73 +15 52 23.0 22.9R 07DS101 568 Cu1674 2007 02 18.34062 09 33 26.68 +15 52 23.3 22.8R 07DS101 568 Cu1674 2007 02 20.39115 09 33 17.31 +15 53 08.0 22.8R 07DS101 568 Cu1674 2007 02 20.41199 09 33 17.19 +15 53 08.7 07DS101 568 Cu1674 2007 02 20.42957 09 33 17.11 +15 53 08.6 07DS101 568 Cu1674 2013 03 13.14870 10 00 43.10 +13 27 13.1 22.7R 07DS101 G37 C~0qSl 2013 03 13.19935 10 00 42.88 +13 27 14.2 07DS101 G37 C~0qSl 2021 02 15.333860 10 41 23.002 +09 26 37.74 22.6G 07DS101 G37 C~4Yv1 2021 02 15.410160 10 41 22.656 +09 26 39.84 07DS101 G37 C~4Yv1 2021 02 15.494360 10 41 22.284 +09 26 41.97 07DS101 G37 C~4Yv1 2023 03 18.269270 10 48 48.943 +08 38 54.66 22.4G 07DS101 G37 C~6V3q 2023 03 18.311470 10 48 48.762 +08 38 55.94 07DS101 G37 C~6V3q 2023 03 18.355340 10 48 48.589 +08 38 57.31 07DS101 G37 C~6V3q
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 0.21 0.00 -0.07
2 0.0002 0.00 0.24 0.00 0.03
3 0.0003 0.00 0.20 0.00 0.08
4 0.0138 0.00 -0.18 0.00 0.20
5 0.0765 0.00 -0.12 0.00 -0.39
6 0.0765 0.00 -0.22 0.00 -0.20
7 0.0765 0.00 -0.37 0.00 -0.34
8 0.1669 0.00 0.15 0.00 0.04
9 0.1671 0.00 0.04 0.00 -0.19
10 0.1672 0.00 0.11 0.00 -0.13
11 0.9806 0.00 0.25 0.00 -0.18
12 0.9884 0.00 0.02 0.00 -0.03
13 0.9885 0.00 0.20 0.00 -0.15
14 0.9886 0.00 0.50 0.00 0.00
15 1.7829 0.00 0.12 0.00 0.25
16 1.7883 0.00 0.04 0.00 0.22
17 2.0100 0.00 0.25 0.00 -0.11
18 2.0100 0.00 0.07 0.00 0.01
19 2.0101 0.00 0.21 0.00 0.16
20 2.0102 0.00 0.14 0.00 0.02
21 2.0128 0.00 -0.04 0.00 0.26
22 2.0205 0.00 -0.03 0.00 0.32
23 2.0206 0.00 -0.61 0.00 0.08
24 2.0206 0.00 -0.29 0.00 0.04
25 2.0262 0.00 -0.21 0.00 0.09
26 2.0263 0.00 -0.56 0.00 0.34
27 2.0263 0.00 -0.54 0.00 -0.14
28 8.0844 0.00 0.29 0.00 -0.09
29 8.0846 0.00 0.15 0.00 -0.06
30 16.0137 0.00 0.10 0.00 0.01
31 16.0140 0.00 0.02 0.00 0.10
32 16.0142 0.00 0.07 0.00 0.01
33 18.0971 0.00 -0.20 0.00 -0.29
34 18.0972 0.00 -0.15 0.00 -0.08
35 18.0973 0.00 0.12 0.00 0.18
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.
07DS101 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.995 43.995 43.995 ecceobj 0.083 0.083 0.083 incobj 1.390 1.390 1.390 qmin 39.699 39.678 39.706 qmax 48.728 48.719 48.718 amean 44.067 44.067 44.067 amin 43.716 43.715 43.717 amax 44.439 44.443 44.437 emean 0.079 0.079 0.079 emin 0.062 0.062 0.063 emax 0.097 0.097 0.097 imean 1.825 1.825 1.825 imin 1.004 1.004 1.005 imax 2.465 2.466 2.465 excite_mean 0.085 0.085 0.085 fracstop 1.000 1.000 1.000 cjmean 3.093 3.093 3.093 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 173.7 173.5 173.7 kozaiamp 180.0 180.0 180.0