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: 439858 # Created Sat Apr 27 01:07:49 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 46 observations of 46 # Arc: 22.06y # First observation: 1999/07/19 # Last observation: 2021/08/08 # Chi-squared of fit: 111.32 DOF: 86 RMS: 0.27 # Min/Max residuals: -1.12 0.63 # Exact a, adot, b, bdot, g, gdot: 1.632692E-05 2.507569E-02 -1.886627E-07 -1.394883E-03 2.503692E-02 1.256357E-04 # 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 -0.120123 -44.359662 0.340952 -0.002237 -0.955077 2451379.023233 # Heliocentric elements and errors Epoch: 2451378.5000 = 1999/07/19 Mean Anomaly: 352.55936 +/- 0.000 Argument of Peri: 190.27151 +/- 0.000 Long of Asc Node: 133.06276 +/- 0.000 Inclination: 3.18226 +/- 0.000 Eccentricity: 0.04574857 +/- 0.0000 Semi-Major Axis: 42.84401585 +/- 0.0000 Time of Perihelion: 2453495.6004 +/- 0.0 Perihelion: 40.88396349 +/- 0.0000 Aphelion: 44.80406821 +/- 0.0000 Period (y) 280.4423 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.00917521 +/- 0.0000 Ecliptic Y -28.83470493 +/- 0.0000 Ecliptic Z -0.08372940 +/- 0.0000 Ecliptic XDOT 0.00192332 +/- 0.0000 Ecliptic YDOT 0.00195963 +/- 0.0000 Ecliptic ZDOT -0.00015252 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.90207558 +/- 0.0000 Geocenter to KBO 39.94104669 +/- 0.0000 # Hcoef: 7.41
The following table shows the complete astrometric record for 439858. 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 (439858) followed by the observatory code and reference code for the source of the astrometry.
1999 07 19.52249 21 12 33.26 -16 15 43.8 23.8R 439858 568 Ca7328 1999 07 19.55661 21 12 33.12 -16 15 44.2 439858 568 Ca7328 1999 07 19.59801 21 12 32.91 -16 15 45.0 439858 568 Ca7328 1999 08 11.32449 21 10 44.66 -16 24 06.2 23.4R 439858 675 Ca7328 1999 08 11.34596 21 10 44.53 -16 24 06.8 439858 675 Ca7328 1999 08 11.36166 21 10 44.47 -16 24 07.2 23.5R 439858 675 Ca7328 2000 07 31.12648 21 17 24.58 -15 59 00.3 23.0R 439858 809 Cb7609 2000 07 31.19929 21 17 24.23 -15 59 02.0 23.2R 439858 809 Cb7609 2000 07 31.28951 21 17 23.79 -15 59 03.7 439858 809 Cb7609 2000 08 02.29811 21 17 14.16 -15 59 49.7 439858 809 Cb7609 2000 08 02.32957 21 17 14.00 -15 59 50.4 23.4R 439858 809 Cb7609 2000 08 02.36121 21 17 13.84 -15 59 51.1 23.6R 439858 809 Cb7609 2001 06 28.32151 21 25 29.04 -15 25 57.3 439858 304 Cd2244 2001 06 28.44590 21 25 28.62 -15 25 59.2 439858 304 Cd2244 2001 07 20.42748 21 24 02.475 -15 33 09.02 23.3R 439858 568 Cl6330 2001 07 21.39819 21 23 58.157 -15 33 30.29 23.6R 439858 568 Cl6330 2001 07 24.48175 21 23 44.14 -15 34 39.0 23.0R 439858 568 Cd2765 2001 07 24.53294 21 23 43.87 -15 34 40.5 439858 568 Cd2765 2001 07 24.57425 21 23 43.69 -15 34 41.3 23.1R 439858 568 Cd2765 2001 07 25.54173 21 23 39.31 -15 35 02.4 439858 568 Cd2765 2002 08 11.15657 21 28 07.68 -15 19 08.2 22.0R 439858 807 Cg2699 2002 08 12.09591 21 28 03.16 -15 19 30.6 439858 807 Cg2699 2002 08 12.19185 21 28 02.68 -15 19 33.1 439858 807 Cg2699 2004 08 19.37236 21 38 54.39 -14 36 40.5 23.3g 439858 568 C~0VDL 2004 08 19.39863 21 38 54.23 -14 36 41.3 23.5g 439858 568 C~0VDL 2004 08 19.42961 21 38 54.11 -14 36 41.9 23.8g 439858 568 C~0VDL 2004 08 20.40721 21 38 49.45 -14 37 06.4 23.4g 439858 568 C~0VDL 2006 07 20.44866 21 52 36.23 -13 36 08.9 439858 568 C~0VDL 2006 07 20.47503 21 52 36.13 -13 36 09.8 24.4r 439858 568 C~0VDL 2006 07 20.50156 21 52 35.99 -13 36 10.2 24.3r 439858 568 C~0VDL 2006 07 26.38437 21 52 11.47 -13 38 26.2 24.1r 439858 568 C~0VDL 2006 07 26.41034 21 52 11.35 -13 38 26.9 24.1r 439858 568 C~0VDL 2006 07 26.43633 21 52 11.23 -13 38 27.3 23.7r 439858 568 C~0VDL 2007 09 11.26954 21 54 17.85 -13 32 59.6 23.1r 439858 695 C~0VDL 2007 09 11.32839 21 54 17.59 -13 33 00.7 22.9r 439858 695 C~0VDL 2007 09 12.27366 21 54 13.54 -13 33 22.4 22.8r 439858 695 C~0VDL 2007 09 16.26825 21 53 56.74 -13 34 52.1 439858 675 C~0VDL 2007 09 18.28116 21 53 48.54 -13 35 35.3 439858 675 C~0VDL 2015 05 27.361839 22 43 40.80 -09 28 59.8 23.0r 439858 W84 C~1V1R 2015 05 27.383308 22 43 40.83 -09 28 59.5 23.5r 439858 W84 C~1V1R 2015 05 27.404799 22 43 40.85 -09 28 59.6 23.1r 439858 W84 C~1V1R 2015 05 27.426352 22 43 40.89 -09 28 59.3 23.5r 439858 W84 C~1V1R 2015 05 28.361081 22 43 42.06 -09 28 55.2 23.0r 439858 W84 C~1V1R 2021 08 08.332320 23 14 08.746 -06 51 06.19 23.6G 439858 G37 C~4y8p 2021 08 08.379150 23 14 08.561 -06 51 07.43 439858 G37 C~4y8p 2021 08 08.427560 23 14 08.380 -06 51 08.66 439858 G37 C~4y8p
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 -0.06 0.00 -0.17
2 0.0001 0.00 0.20 0.00 0.15
3 0.0002 0.00 -0.09 0.00 0.22
4 0.0624 0.00 0.63 0.00 0.11
5 0.0625 0.00 0.27 0.00 -0.02
6 0.0625 0.00 0.53 0.00 -0.07
7 1.0338 0.00 0.08 0.00 0.05
8 1.0340 0.00 0.14 0.00 0.01
9 1.0343 0.00 0.13 0.00 0.35
10 1.0398 0.00 0.25 0.00 0.06
11 1.0399 0.00 0.16 0.00 0.07
12 1.0399 0.00 0.07 0.00 0.08
13 1.9433 0.00 -0.01 0.00 0.17
14 1.9437 0.00 -0.03 0.00 0.33
15 2.0038 0.00 -0.00 0.00 -0.13
16 2.0065 0.00 0.12 0.00 -0.13
17 2.0149 0.00 -0.65 0.00 -0.34
18 2.0151 0.00 -1.12 0.00 -0.69
19 2.0152 0.00 -0.93 0.00 -0.57
20 2.0178 0.00 -0.04 0.00 0.08
21 3.0627 0.00 0.07 0.00 -0.15
22 3.0652 0.00 0.11 0.00 -0.16
23 3.0655 0.00 -0.04 0.00 -0.36
24 5.0865 0.00 0.11 0.00 0.24
25 5.0866 0.00 -0.38 0.00 0.08
26 5.0867 0.00 0.08 0.00 0.24
27 5.0893 0.00 0.03 0.00 -0.32
28 7.0032 0.00 0.20 0.00 0.38
29 7.0033 0.00 0.33 0.00 0.08
30 7.0034 0.00 -0.13 0.00 0.28
31 7.0195 0.00 0.14 0.00 0.17
32 7.0195 0.00 0.04 0.00 0.09
33 7.0196 0.00 -0.06 0.00 0.31
34 8.1472 0.00 -0.08 0.00 -0.19
35 8.1473 0.00 -0.09 0.00 0.06
36 8.1499 0.00 0.09 0.00 0.07
37 8.1608 0.00 -0.20 0.00 -0.30
38 8.1663 0.00 -0.37 0.00 -0.05
39 15.8545 0.00 0.11 0.00 0.00
40 15.8545 0.00 0.17 0.00 0.20
41 15.8546 0.00 0.08 0.00 -0.00
42 15.8546 0.00 0.29 0.00 0.20
43 15.8572 0.00 0.44 0.00 0.02
44 22.0556 0.00 -0.09 0.00 -0.12
45 22.0557 0.00 -0.21 0.00 -0.16
46 22.0559 0.00 -0.17 0.00 -0.15
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.
439858 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.771 42.771 42.771 ecceobj 0.044 0.044 0.044 incobj 3.184 3.184 3.184 qmin 39.740 39.741 39.741 qmax 45.936 45.947 45.929 amean 42.716 42.716 42.716 amin 42.382 42.382 42.383 amax 43.056 43.055 43.055 emean 0.047 0.047 0.047 emin 0.022 0.022 0.022 emax 0.067 0.067 0.067 imean 2.893 2.893 2.893 imin 1.620 1.620 1.620 imax 4.140 4.140 4.141 excite_mean 0.070 0.070 0.070 fracstop 1.000 1.000 1.000 cjmean 3.081 3.081 3.081 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 179.3 179.3 179.3 kozaiamp 180.0 180.0 180.0