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: 01DS106 # Created Tue Apr 1 01:08:11 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 18.04y # First observation: 2001/02/22 # Last observation: 2019/03/08 # Chi-squared of fit: 19.57 DOF: 44 RMS: 0.16 # Min/Max residuals: -0.53 0.36 # Exact a, adot, b, bdot, g, gdot: 1.614571E-05 2.319775E-02 1.656020E-06 2.273044E-03 2.406260E-02 -2.777704E-03 # Covariance matrix: 2.0117E-13 -3.1078E-14 1.4975E-15 -1.9409E-15 -1.6463E-14 -4.3907E-14 -3.1078E-14 2.6858E-14 -1.9661E-15 2.5495E-15 2.0138E-14 5.7693E-14 1.4975E-15 -1.9661E-15 1.8627E-13 -1.1526E-14 -1.4541E-15 -4.3799E-15 -1.9409E-15 2.5495E-15 -1.1526E-14 1.1925E-15 1.7205E-15 5.6865E-15 -1.6463E-14 2.0138E-14 -1.4541E-15 1.7205E-15 2.0760E-13 3.6698E-14 -4.3907E-14 5.7693E-14 -4.3799E-15 5.6865E-15 3.6698E-14 1.2877E-13 # lat0 lon0 xBary yBary zBary JD0 -0.316251 153.337555 -0.012963 -0.005613 -0.990776 2451962.795453 # Heliocentric elements and errors Epoch: 2451962.5000 = 2001/02/22 Mean Anomaly: 289.10949 +/- 0.020 Argument of Peri: 80.98407 +/- 0.026 Long of Asc Node: 156.49323 +/- 0.000 Inclination: 5.60895 +/- 0.000 Eccentricity: 0.11759908 +/- 0.0000 Semi-Major Axis: 43.66180945 +/- 0.0033 Time of Perihelion: 2472713.3852 +/- 11.2 Perihelion: 38.52722090 +/- 0.0030 Aphelion: 48.79639800 +/- 0.0038 Period (y) 288.5100 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -38.02598424 +/- 0.0007 Ecliptic Y 19.08582577 +/- 0.0004 Ecliptic Z -0.22931722 +/- 0.0000 Ecliptic XDOT -0.00091156 +/- 0.0000 Ecliptic YDOT -0.00249670 +/- 0.0000 Ecliptic ZDOT 0.00026056 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.54765626 +/- 0.0006 Geocenter to KBO 41.55836800 +/- 0.0008 # Hcoef: 8.28
The following table shows the complete astrometric record for 01DS106. 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 (01DS106) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.29471 10 20 35.72 +09 59 14.1 01DS106 568 Cd0833 2001 02 22.33319 10 20 35.56 +09 59 14.6 01DS106 568 Cd0833 2001 02 22.37422 10 20 35.38 +09 59 16.1 23.8R 01DS106 568 Cd0833 2001 02 25.28317 10 20 22.03 +10 00 36.9 01DS106 568 Cd0833 2001 02 25.32166 10 20 21.84 +10 00 38.0 01DS106 568 Cd0833 2001 02 25.36016 10 20 21.67 +10 00 38.7 24.6R 01DS106 568 Cd0833 2002 04 07.395948 10 22 51.00 +09 55 48.4 01DS106 T09 C~8SDg 2002 12 04.629903 10 34 45.98 +08 51 57.4 01DS106 T09 C~8SDg 2014 02 28.486922 11 29 41.14 +04 49 36.7 01DS106 T09 C~8SDg 2014 02 28.501494 11 29 41.07 +04 49 37.1 01DS106 T09 C~8SDg 2014 02 28.520716 11 29 40.98 +04 49 37.6 01DS106 T09 C~8SDg 2014 02 28.533788 11 29 40.91 +04 49 38.1 01DS106 T09 C~8SDg 2017 12 16.626709 11 54 11.85 +02 41 33.9 01DS106 T14 C~8SDg 2018 01 15.617926 11 54 06.50 +02 44 24.3 01DS106 T14 C~8SDg 2018 03 18.46645 11 50 28.14 +03 11 12.5 24.1i 01DS106 T09 C~8SDg 2018 03 18.50838 11 50 27.93 +03 11 13.8 24.3i 01DS106 T09 C~8SDg 2018 03 18.56536 11 50 27.68 +03 11 15.7 24.0i 01DS106 T09 C~8SDg 2018 03 18.58138 11 50 27.60 +03 11 16.2 24.4i 01DS106 T09 C~8SDg 2018 04 24.35876 11 47 53.05 +03 28 12.9 24.0z 01DS106 T09 C~8SDg 2018 04 24.40415 11 47 52.88 +03 28 13.9 24.0z 01DS106 T09 C~8SDg 2018 04 24.44791 11 47 52.74 +03 28 15.0 24.1z 01DS106 T09 C~8SDg 2018 04 24.49071 11 47 52.59 +03 28 16.0 24.0z 01DS106 T09 C~8SDg 2019 02 05.460553 11 58 50.68 +02 23 39.7 01DS106 T09 C~8SDg 2019 02 05.514237 11 58 50.52 +02 23 40.9 01DS106 T09 C~8SDg 2019 03 08.362302 11 56 50.55 +02 38 15.6 01DS106 T09 C~8SDg
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 -0.19 0.00 0.04
2 0.0001 0.00 0.10 0.00 -0.53
3 0.0002 0.00 0.27 0.00 -0.17
4 0.0082 0.00 0.12 0.00 0.32
5 0.0083 0.00 -0.05 0.00 0.36
6 0.0084 0.00 0.09 0.00 -0.01
7 1.1201 0.00 -0.22 0.00 0.08
8 1.7805 0.00 -0.18 0.00 0.02
9 13.0163 0.00 0.13 0.00 -0.05
10 13.0163 0.00 0.07 0.00 -0.10
11 13.0164 0.00 0.03 0.00 -0.18
12 13.0164 0.00 -0.13 0.00 -0.08
13 16.8141 0.00 -0.06 0.00 0.36
14 16.8962 0.00 0.08 0.00 0.07
15 17.0655 0.00 0.02 0.00 0.01
16 17.0656 0.00 -0.19 0.00 -0.00
17 17.0658 0.00 0.04 0.00 0.12
18 17.0658 0.00 -0.04 0.00 0.12
19 17.1665 0.00 -0.04 0.00 -0.14
20 17.1666 0.00 -0.18 0.00 -0.13
21 17.1667 0.00 0.04 0.00 0.02
22 17.1669 0.00 0.04 0.00 0.08
23 17.9525 0.00 -0.03 0.00 -0.03
24 17.9527 0.00 0.10 0.00 -0.11
25 18.0371 0.00 0.10 0.00 -0.01
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.
01DS106 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 43.494 43.494 43.494 ecceobj 0.117 0.117 0.117 incobj 5.617 5.617 5.617 qmin 37.173 37.725 37.051 qmax 50.859 50.252 50.846 amean 43.725 43.725 43.725 amin 43.251 43.262 43.256 amax 44.244 44.226 44.243 emean 0.130 0.120 0.130 emin 0.109 0.104 0.109 emax 0.151 0.137 0.152 imean 5.580 5.619 5.499 imin 4.243 4.399 4.136 imax 6.937 7.086 6.951 excite_mean 0.163 0.156 0.162 fracstop 1.000 1.000 1.000 cjmean 3.066 3.069 3.067 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 179.4 180.1 178.6 kozaiamp 180.0 180.0 180.0