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: 612087 # Created Wed Jul 17 01:07:41 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 34 observations of 34 # Arc: 25.08y # First observation: 1999/02/12 # Last observation: 2024/03/13 # Chi-squared of fit: 138.61 DOF: 62 RMS: 0.36 # Min/Max residuals: -1.00 0.79 # Exact a, adot, b, bdot, g, gdot: 1.568948E-05 2.369493E-02 3.454746E-06 1.101955E-03 2.412328E-02 1.093615E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -0.428142 130.057835 -0.229477 -0.007444 -0.966855 2451221.787503 # Heliocentric elements and errors Epoch: 2451222.5000 = 1999/02/13 Mean Anomaly: 51.97791 +/- 0.000 Argument of Peri: 292.83316 +/- 0.000 Long of Asc Node: 139.25344 +/- 0.000 Inclination: 2.70341 +/- 0.000 Eccentricity: 0.06624857 +/- 0.0000 Semi-Major Axis: 44.08748796 +/- 0.0000 Time of Perihelion: 2435784.6175 +/- 0.0 Perihelion: 41.16675495 +/- 0.0000 Aphelion: 47.00822098 +/- 0.0000 Period (y) 292.7394 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -27.46733904 +/- 0.0000 Ecliptic Y 32.31963248 +/- 0.0000 Ecliptic Z -0.30961911 +/- 0.0000 Ecliptic XDOT -0.00214051 +/- 0.0000 Ecliptic YDOT -0.00162597 +/- 0.0000 Ecliptic ZDOT 0.00012414 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.41587273 +/- 0.0000 Geocenter to KBO 41.45373171 +/- 0.0000 # Hcoef: 7.18
The following table shows the complete astrometric record for 612087. 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 (612087) followed by the observatory code and reference code for the source of the astrometry.
1999 02 12.28676 08 49 31.92 +17 18 47.0 23.2R 612087 568 Ca4208 1999 02 12.37885 08 49 31.48 +17 18 48.8 23.2R 612087 568 Ca4208 1999 03 15.25440 08 47 23.69 +17 27 44.6 23.2R 612087 568 Ca4208 1999 03 15.33323 08 47 23.41 +17 27 45.7 23.2R 612087 568 Ca4208 2000 03 29.16102 08 52 13.60 +17 12 38.6 612087 695 Cd7462 2000 03 29.27899 08 52 13.36 +17 12 40.0 612087 695 Cd7462 2000 03 30.16573 08 52 11.45 +17 12 48.5 612087 695 Cd7462 2000 03 30.25084 08 52 11.28 +17 12 49.0 612087 695 Cd7462 2000 04 06.36356 08 51 58.56 +17 13 47.3 23.3R 612087 568 Cb1943 2000 04 07.31373 08 51 57.21 +17 13 54.2 23.3R 612087 568 Cb1943 2001 02 25.27920 08 59 32.03 +16 45 55.4 22.8R 612087 568 Cd0744 2001 02 25.34921 08 59 31.74 +16 45 57.2 612087 568 Cd0744 2001 03 24.19501 08 57 54.53 +16 53 08.2 22.8R 612087 695 Cc7487 2001 03 24.29064 08 57 54.26 +16 53 09.5 612087 695 Cc7487 2005 02 10.31392 09 22 26.15 +15 19 57.5 23.5g 612087 568 C~0VDK 2005 02 10.39693 09 22 25.74 +15 19 59.2 24.2g 612087 568 C~0VDK 2005 02 10.43646 09 22 25.55 +15 20 00.1 23.8g 612087 568 C~0VDK 2005 04 12.26433 09 18 48.38 +15 37 27.7 23.0i 612087 568 C~0VDK 2005 04 12.34493 09 18 48.25 +15 37 28.3 23.2i 612087 568 C~0VDK 2005 04 12.37258 09 18 48.21 +15 37 28.6 23.3i 612087 568 C~0VDK 2007 02 14.48383 09 32 48.72 +14 38 22.6 23.5r 612087 568 C74769 2007 02 14.51775 09 32 48.54 +14 38 23.0 23.4r 612087 568 C74769 2007 02 14.55049 09 32 48.39 +14 38 24.0 23.6r 612087 568 C74769 2007 02 15.49488 09 32 43.94 +14 38 45.3 23.3r 612087 568 C74769 2013 03 13.24800 10 01 58.13 +12 32 10.7 23.2R 612087 695 C~0uco 2013 03 14.20531 10 01 54.19 +12 32 32.2 612087 695 C~0uco 2013 03 14.35578 10 01 53.57 +12 32 35.6 612087 695 C~0uco 2016 01 10.323339 10 21 32.19 +10 54 05.1 612087 W84 C~3i8w 2016 01 10.324456 10 21 32.21 +10 54 05.2 612087 W84 C~3i8w 2016 01 10.329867 10 21 32.16 +10 54 05.2 612087 W84 C~3i8w 2018 03 18.164167 10 26 53.61 +10 31 45.5 612087 W84 C~3i8w 2018 03 18.165677 10 26 53.59 +10 31 45.3 612087 W84 C~3i8w 2024 03 13.268790 10 56 30.360 +07 56 40.18 23.7G 612087 G37 C~7xIB 2024 03 13.311240 10 56 30.173 +07 56 41.17 612087 G37 C~7xIB
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 -0.53
2 0.0003 0.00 -0.08 0.00 -0.58
3 0.0848 0.00 -0.55 0.00 -0.38
4 0.0850 0.00 -0.81 0.00 -0.38
5 1.1249 0.00 0.10 0.00 0.45
6 1.1252 0.00 0.48 0.00 0.69
7 1.1277 0.00 0.14 0.00 0.55
8 1.1279 0.00 0.36 0.00 0.24
9 1.1474 0.00 -0.41 0.00 -0.58
10 1.1500 0.00 -0.47 0.00 -0.21
11 2.0369 0.00 0.46 0.00 -0.12
12 2.0371 0.00 0.79 0.00 0.33
13 2.1106 0.00 0.07 0.00 0.27
14 2.1109 0.00 0.01 0.00 0.41
15 5.9960 0.00 0.24 0.00 0.60
16 5.9962 0.00 0.14 0.00 0.38
17 5.9963 0.00 0.17 0.00 0.37
18 6.1628 0.00 0.06 0.00 -0.39
19 6.1631 0.00 0.05 0.00 -0.40
20 6.1631 0.00 0.11 0.00 -0.31
21 8.0060 0.00 0.07 0.00 0.22
22 8.0061 0.00 -0.19 0.00 -0.18
23 8.0062 0.00 -0.08 0.00 0.05
24 8.0088 0.00 -0.02 0.00 -1.00
25 14.0807 0.00 0.06 0.00 0.19
26 14.0833 0.00 -0.15 0.00 0.14
27 14.0837 0.00 -0.08 0.00 0.18
28 16.9091 0.00 -0.35 0.00 0.20
29 16.9091 0.00 -0.00 0.00 0.28
30 16.9091 0.00 -0.50 0.00 0.18
31 19.0934 0.00 0.27 0.00 0.07
32 19.0934 0.00 0.07 0.00 -0.17
33 25.0814 0.00 0.09 0.00 -0.19
34 25.0815 0.00 0.08 0.00 -0.34
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.
612087 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.224 44.224 44.224 ecceobj 0.068 0.068 0.068 incobj 2.702 2.702 2.702 qmin 40.178 40.169 40.165 qmax 48.558 48.584 48.562 amean 44.245 44.244 44.244 amin 43.895 43.893 43.899 amax 44.612 44.627 44.618 emean 0.073 0.073 0.073 emin 0.057 0.057 0.057 emax 0.089 0.089 0.089 imean 2.160 2.160 2.160 imin 1.510 1.510 1.510 imax 2.807 2.807 2.807 excite_mean 0.082 0.082 0.082 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.096 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 190.9 191.0 190.9 kozaiamp 180.0 179.9 180.0