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: 00YF2 # Created Wed Dec 25 02:08:08 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 15.13y # First observation: 2000/12/17 # Last observation: 2016/02/04 # Chi-squared of fit: 135.69 DOF: 38 RMS: 0.44 # Min/Max residuals: -1.19 0.59 # Exact a, adot, b, bdot, g, gdot: 1.739585E-05 1.939064E-02 4.038211E-07 6.166690E-04 2.161517E-02 -1.496245E-03 # Covariance matrix: 1.5077E-13 -6.0625E-14 1.8585E-15 -1.6611E-15 8.0050E-15 -1.7711E-13 -6.0625E-14 9.4782E-14 -3.0936E-15 3.1385E-15 -1.0949E-13 3.3330E-13 1.8585E-15 -3.0936E-15 1.0317E-13 -1.1083E-14 3.2574E-15 -1.1238E-14 -1.6611E-15 3.1385E-15 -1.1083E-14 3.4046E-15 -3.8604E-15 1.1442E-14 8.0050E-15 -1.0949E-13 3.2574E-15 -3.8604E-15 2.5833E-13 -4.0820E-13 -1.7711E-13 3.3330E-13 -1.1238E-14 1.1442E-14 -4.0820E-13 1.2149E-12 # lat0 lon0 xBary yBary zBary JD0 -0.839584 56.470142 -0.478652 -0.012678 -0.853727 2451895.643783 # Heliocentric elements and errors Epoch: 2451896.5000 = 2000/12/18 Mean Anomaly: 252.96612 +/- 0.066 Argument of Peri: 90.36693 +/- 0.053 Long of Asc Node: 81.32551 +/- 0.002 Inclination: 2.00413 +/- 0.000 Eccentricity: 0.07155941 +/- 0.0001 Semi-Major Axis: 45.95523997 +/- 0.0049 Time of Perihelion: 2485727.8829 +/- 24.3 Perihelion: 42.66671027 +/- 0.0058 Aphelion: 49.24376967 +/- 0.0064 Period (y) 311.5378 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.62877470 +/- 0.0006 Ecliptic Y 39.54273207 +/- 0.0009 Ecliptic Z -0.67787489 +/- 0.0000 Ecliptic XDOT -0.00215947 +/- 0.0000 Ecliptic YDOT 0.00120381 +/- 0.0000 Ecliptic ZDOT 0.00008106 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 47.12669543 +/- 0.0008 Geocenter to KBO 46.26390897 +/- 0.0011 # Hcoef: 6.91
The following table shows the complete astrometric record for 00YF2. 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 (00YF2) followed by the observatory code and reference code for the source of the astrometry.
2000 12 17.14304 03 37 28.37 +18 32 54.5 22.9R 00YF2 695 Cc4111 2000 12 17.18970 03 37 28.21 +18 32 53.3 23.4R 00YF2 695 Cc4111 2000 12 17.23702 03 37 28.02 +18 32 52.3 23.4R 00YF2 695 Cc4111 2000 12 18.11934 03 37 24.64 +18 32 41.5 00YF2 695 Cc4111 2001 02 23.04618 03 35 46.95 +18 28 39.1 00YF2 309 Cc6738 2001 02 24.04464 03 35 48.42 +18 28 45.5 00YF2 309 Cc6738 2001 09 21.38629 03 47 39.12 +19 08 16.0 23.2R 00YF2 675 Ce6592 2001 09 21.45586 03 47 39.00 +19 08 15.6 23.1R 00YF2 675 Ce6592 2001 09 21.51023 03 47 38.89 +19 08 15.2 23.1R 00YF2 675 Ce6592 2001 12 12.92894 03 42 19.90 +18 51 13.9 00YF2 950 Ce6592 2001 12 12.97811 03 42 19.70 +18 51 13.6 00YF2 950 Ce6592 2001 12 13.01775 03 42 19.53 +18 51 12.8 00YF2 950 Ce6592 2002 01 13.89449 03 40 34.12 +18 45 59.7 00YF2 950 Ce6592 2002 01 13.97484 03 40 33.96 +18 45 58.8 23.4R 00YF2 950 Ce6592 2005 10 27.50617 04 04 17.48 +20 06 17.3 23.4R 00YF2 568 Cp1834 2005 10 27.58247 04 04 17.18 +20 06 16.2 00YF2 568 Cp1834 2006 08 04.26200 04 10 09.11 +20 24 51.3 23.4R 00YF2 250 S~06AO 2006 08 04.26640 04 10 09.13 +20 24 51.3 00YF2 250 S~06AO 2006 08 04.27080 04 10 09.14 +20 24 51.3 00YF2 250 S~06AO 2006 08 04.27519 04 10 09.15 +20 24 51.4 00YF2 250 S~06AO 2016 02 04.16781 04 45 44.00 +22 04 47.1 24.1R 00YF2 G37 C~1luu 2016 02 04.29893 04 45 43.70 +22 04 45.7 00YF2 G37 C~1luu
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 -0.68 0.00 -0.14
2 0.0001 0.00 -0.30 0.00 -0.77
3 0.0003 0.00 -0.32 0.00 -1.19
4 0.0027 0.00 0.31 0.00 -1.19
5 0.1859 0.00 -0.10 0.00 0.37
6 0.1886 0.00 0.27 0.00 0.37
7 0.7618 0.00 -0.04 0.00 0.23
8 0.7620 0.00 0.20 0.00 0.27
9 0.7621 0.00 0.15 0.00 0.23
10 0.9878 0.00 0.03 0.00 0.18
11 0.9879 0.00 0.16 0.00 0.50
12 0.9880 0.00 0.13 0.00 0.21
13 1.0753 0.00 0.22 0.00 0.54
14 1.0755 0.00 0.59 0.00 0.14
15 4.8607 0.00 -0.90 0.00 0.11
16 4.8609 0.00 -0.72 0.00 -0.13
17 5.6293 0.00 0.03 0.00 0.23
18 5.6294 0.00 0.15 0.00 0.20
19 5.6294 0.00 0.12 0.00 0.17
20 5.6294 0.00 0.09 0.00 0.24
21 15.1322 0.00 0.37 0.00 0.31
22 15.1325 0.00 -0.27 0.00 -0.71
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.
00YF2 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.930 45.930 45.930 ecceobj 0.070 0.070 0.070 incobj 2.004 2.004 2.004 qmin 41.506 41.503 41.516 qmax 50.009 50.008 50.006 amean 45.623 45.623 45.623 amin 45.259 45.258 45.261 amax 46.014 46.012 46.010 emean 0.073 0.073 0.073 emin 0.060 0.060 0.060 emax 0.087 0.087 0.087 imean 0.601 0.601 0.601 imin 0.099 0.099 0.101 imax 0.982 0.982 0.982 excite_mean 0.074 0.074 0.074 fracstop 1.000 1.000 1.000 cjmean 3.115 3.115 3.115 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 184.4 184.4 184.4 kozaiamp 180.0 180.0 180.0