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: 01DQ108 # Created Tue May 7 01:10:18 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 3.01d # First observation: 2001/02/22 # Last observation: 2001/02/25 # WARNING Fitting with energy constraint # WARNING and with gdot fixed = 0 # Chi-squared of fit: 12.69 DOF: 32 RMS: 0.15 # Min/Max residuals: -0.50 0.25 # Exact a, adot, b, bdot, g, gdot: 1.438750E-05 2.122027E-02 -2.436169E-07 -1.067371E-03 2.255021E-02 0.000000E+00 # Covariance matrix: 2.7824E-11 3.9390E-08 2.0045E-14 -3.3502E-12 6.2086E-09 0.0000E+00 3.9390E-08 5.6039E-05 2.8505E-11 -4.7639E-09 8.8291E-06 0.0000E+00 2.0045E-14 2.8505E-11 1.1584E-13 -1.3415E-11 4.4915E-12 0.0000E+00 -3.3502E-12 -4.7639E-09 -1.3415E-11 5.2585E-09 -7.5065E-10 0.0000E+00 6.2086E-09 8.8291E-06 4.4915E-12 -7.5065E-10 1.3912E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.5089E-04 # lat0 lon0 xBary yBary zBary JD0 -0.088811 153.508444 -0.012165 -0.001687 -0.990856 2451962.918003 # Heliocentric elements and errors Epoch: 2451960.5000 = 2001/02/20 Mean Anomaly: 9.88103 +/- 142.585 Argument of Peri: 171.43084 +/- 209.519 Long of Asc Node: 331.78653 +/- 0.618 Inclination: 2.87548 +/- 1.029 Eccentricity: 0.02044296 +/- 0.5600 Semi-Major Axis: 46.26604106 +/- 24.0206 Time of Perihelion: 2448805.5547 +/- 505302.4 Perihelion: 45.32022603 +/- 34.9986 Aphelion: 47.21185608 +/- 35.6663 Period (y) 314.7036 +/- 245.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -40.57749583 +/- 2.0758 Ecliptic Y 20.21663015 +/- 1.0348 Ecliptic Z -0.06874299 +/- 0.0036 Ecliptic XDOT -0.00115737 +/- 0.0014 Ecliptic YDOT -0.00230269 +/- 0.0010 Ecliptic ZDOT -0.00012940 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.33486548 +/- 1.9145 Geocenter to KBO 44.34548961 +/- 2.3195 # Hcoef: 8.65
The following table shows the complete astrometric record for 01DQ108. 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 (01DQ108) followed by the observatory code and reference code for the source of the astrometry.
2001 02 22.41726 10 21 34.59 +10 08 15.3 01DQ108 568 Ce3560 2001 02 22.42496 10 21 34.56 +10 08 15.5 01DQ108 568 Ce3560 2001 02 22.43266 10 21 34.50 +10 08 15.8 01DQ108 568 Ce3560 2001 02 22.44035 10 21 34.45 +10 08 16.1 01DQ108 568 Ce3560 2001 02 22.45050 10 21 34.42 +10 08 16.4 01DQ108 568 Ce3560 2001 02 22.45820 10 21 34.42 +10 08 16.5 01DQ108 568 Ce3560 2001 02 22.46590 10 21 34.39 +10 08 16.7 01DQ108 568 Ce3560 2001 02 22.47359 10 21 34.35 +10 08 16.7 01DQ108 568 Ce3560 2001 02 22.48129 10 21 34.30 +10 08 17.0 01DQ108 568 Ce3560 2001 02 22.48899 10 21 34.28 +10 08 17.1 01DQ108 568 Ce3560 2001 02 22.49670 10 21 34.23 +10 08 17.4 01DQ108 568 Ce3560 2001 02 25.38568 10 21 21.64 +10 09 27.6 01DQ108 568 Ce3560 2001 02 25.39337 10 21 21.61 +10 09 28.0 01DQ108 568 Ce3560 2001 02 25.40107 10 21 21.57 +10 09 28.0 01DQ108 568 Ce3560 2001 02 25.40877 10 21 21.53 +10 09 28.2 01DQ108 568 Ce3560 2001 02 25.41646 10 21 21.50 +10 09 28.4 01DQ108 568 Ce3560 2001 02 25.42416 10 21 21.46 +10 09 28.6 01DQ108 568 Ce3560 2001 02 25.43186 10 21 21.43 +10 09 28.9 24.8R 01DQ108 568 Ce3560
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 0.10 0.00 -0.10
2 0.0000 -0.49 0.16 0.03 -0.07
3 0.0000 -1.42 -0.24 -0.01 -0.10
4 0.0001 -2.22 -0.50 -0.00 -0.08
5 0.0001 -2.74 -0.31 0.12 0.05
6 0.0001 -2.77 0.19 0.21 0.15
7 0.0001 -3.26 0.25 0.24 0.18
8 0.0002 -3.81 0.23 0.02 -0.02
9 0.0002 -4.61 -0.02 0.04 -0.00
10 0.0002 -4.92 0.20 0.02 -0.01
11 0.0002 -5.72 -0.05 0.04 0.01
12 0.0081 -204.42 0.07 -1.73 -0.06
13 0.0081 -204.97 0.05 -1.52 0.16
14 0.0082 -205.52 0.04 -1.73 -0.04
15 0.0082 -206.15 -0.04 -1.76 -0.06
16 0.0082 -206.63 0.01 -1.73 -0.03
17 0.0082 -207.26 -0.08 -1.76 -0.05
18 0.0083 -207.78 -0.06 -1.64 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.
01DQ108 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0