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: 469610
# Created Sat Apr 20 01:08:01 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 39 observations of 39
# Arc: 12.13y
# First observation: 2004/04/24
# Last observation: 2016/06/10
# Chi-squared of fit: 38.36 DOF: 72 RMS: 0.18
# Min/Max residuals: -0.49 0.42
# Exact a, adot, b, bdot, g, gdot:
1.492152E-05 2.351345E-02 -2.451900E-07 -5.314554E-04 2.413051E-02 -3.355257E-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
0.751074 -132.662323 0.218963 0.012895 -0.979732 2453119.929133
# Heliocentric elements and errors
Epoch: 2453120.5000 = 2004/04/25
Mean Anomaly: 324.70265 +/- 0.000
Argument of Peri: 187.58991 +/- 0.000
Long of Asc Node: 76.67601 +/- 0.000
Inclination: 1.48341 +/- 0.000
Eccentricity: 0.02842278 +/- 0.0000
Semi-Major Axis: 43.41774134 +/- 0.0000
Time of Perihelion: 2463366.1339 +/- 0.0
Perihelion: 42.18368861 +/- 0.0000
Aphelion: 44.65179406 +/- 0.0000
Period (y) 286.0942 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -28.90978136 +/- 0.0000
Ecliptic Y -31.04215552 +/- 0.0000
Ecliptic Z 0.54324187 +/- 0.0000
Ecliptic XDOT 0.00198407 +/- 0.0000
Ecliptic YDOT -0.00178745 +/- 0.0000
Ecliptic ZDOT -0.00006066 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.42271678 +/- 0.0000
Geocenter to KBO 41.44134983 +/- 0.0000
# Hcoef: 6.29
The following table shows the complete astrometric record for 469610. 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 (469610) followed by the observatory code and reference code for the source of the astrometry.
2004 04 24.42839 15 00 22.47 -16 17 15.1 22.8g 469610 568 C~0VDp 2004 04 24.45454 15 00 22.34 -16 17 14.7 22.9g 469610 568 C~0VDp 2004 04 25.43410 15 00 17.79 -16 16 55.5 22.8g 469610 568 C~0VDp 2004 04 25.45680 15 00 17.67 -16 16 55.1 23.0g 469610 568 C~0VDp 2004 04 25.48375 15 00 17.57 -16 16 54.4 22.9g 469610 568 C~0VDp 2004 07 08.26064 14 55 28.24 -15 57 14.6 22.8i 469610 568 C~0VDp 2004 07 08.32344 14 55 28.12 -15 57 14.2 22.6i 469610 568 C~0VDp 2004 07 08.38484 14 55 28.00 -15 57 13.7 22.6i 469610 568 C~0VDp 2005 05 08.42069 15 04 39.94 -16 37 05.0 22.7r 469610 568 C~0VDp 2005 05 08.45260 15 04 39.78 -16 37 04.5 22.7r 469610 568 C~0VDp 2005 05 08.48437 15 04 39.63 -16 37 03.8 22.7r 469610 568 C~0VDp 2005 05 10.47732 15 04 30.08 -16 36 25.0 22.5r 469610 568 C~0VDp 2005 07 11.06951 15 00 41.07 -16 21 23.3 22.6R 469610 809 C~0VDp 2005 07 11.10472 15 00 41.01 -16 21 23.0 22.4R 469610 809 C~0VDp 2006 06 03.39240 15 08 04.23 -16 53 07.6 469610 568 C~0VDp 2006 06 03.40838 15 08 04.20 -16 53 07.5 469610 568 C~0VDp 2006 06 03.42486 15 08 04.08 -16 53 07.1 469610 568 C~0VDp 2012 05 20.38208 15 42 00.828 -19 09 20.63 22.6w 469610 F51 C~1vVK 2012 05 20.39669 15 42 00.736 -19 09 20.25 22.6w 469610 F51 C~1vVK 2012 05 20.41129 15 42 00.657 -19 09 20.44 22.4w 469610 F51 C~1vVK 2012 05 20.42584 15 42 00.564 -19 09 19.74 22.2w 469610 F51 C~1vVK 2014 05 08.47430 15 54 11.765 -19 51 36.15 22.8w 469610 F51 C~1vVK 2014 05 08.48639 15 54 11.711 -19 51 35.87 22.7w 469610 F51 C~1vVK 2014 05 08.49852 15 54 11.644 -19 51 35.59 22.9w 469610 F51 C~1vVK 2014 05 08.51063 15 54 11.590 -19 51 35.49 22.6w 469610 F51 C~1vVK 2014 07 01.32394 15 50 04.210 -19 39 28.66 22.6w 469610 F51 C~1vVK 2014 07 01.33521 15 50 04.172 -19 39 28.66 22.8w 469610 F51 C~1vVK 2014 07 01.34648 15 50 04.118 -19 39 28.59 22.5w 469610 F51 C~1vVK 2014 07 01.35776 15 50 04.082 -19 39 28.53 22.9w 469610 F51 C~1vVK 2015 04 15.38200 16 01 30.76 -20 14 55.5 22.3R 469610 695 C~1RHU 2015 04 15.42005 16 01 30.63 -20 14 55.1 469610 695 C~1RHU 2015 04 15.45795 16 01 30.47 -20 14 54.5 469610 695 C~1RHU 2015 05 25.38031 15 58 27.483 -20 06 17.81 21.7i 469610 F51 C~1vVK 2015 05 25.40295 15 58 27.373 -20 06 17.77 21.4i 469610 F51 C~1vVK 2015 05 25.41425 15 58 27.343 -20 06 17.81 21.7i 469610 F51 C~1vVK 2016 06 09.345421 16 02 49.951 -20 20 56.00 22.6r 469610 568 C~4tn7 2016 06 09.413008 16 02 49.621 -20 20 55.13 22.6r 469610 568 C~4tn7 2016 06 10.332777 16 02 45.265 -20 20 43.38 22.6r 469610 568 C~4tn7 2016 06 10.409216 16 02 44.896 -20 20 42.43 22.6r 469610 568 C~4tn7
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 0.09 0.00 -0.05
2 0.0001 0.00 -0.01 0.00 -0.16
3 0.0028 0.00 -0.11 0.00 -0.06
4 0.0028 0.00 -0.30 0.00 -0.10
5 0.0029 0.00 0.12 0.00 0.07
6 0.2049 0.00 -0.26 0.00 0.18
7 0.2051 0.00 -0.20 0.00 0.14
8 0.2052 0.00 -0.20 0.00 0.21
9 1.0376 0.00 0.09 0.00 -0.16
10 1.0377 0.00 0.03 0.00 -0.28
11 1.0378 0.00 0.10 0.00 -0.20
12 1.0433 0.00 0.16 0.00 -0.16
13 1.2119 0.00 0.31 0.00 -0.02
14 1.2120 0.00 0.39 0.00 0.05
15 2.1080 0.00 -0.19 0.00 0.33
16 2.1081 0.00 0.42 0.00 0.16
17 2.1081 0.00 -0.29 0.00 0.28
18 8.0711 0.00 0.18 0.00 -0.13
19 8.0711 0.00 -0.10 0.00 0.02
20 8.0711 0.00 -0.19 0.00 -0.40
21 8.0712 0.00 -0.49 0.00 0.07
22 10.0371 0.00 0.03 0.00 -0.13
23 10.0371 0.00 0.11 0.00 -0.02
24 10.0372 0.00 -0.01 0.00 0.08
25 10.0372 0.00 0.07 0.00 0.01
26 10.1845 0.00 0.08 0.00 0.20
27 10.1845 0.00 0.13 0.00 0.08
28 10.1846 0.00 -0.06 0.00 0.04
29 10.1846 0.00 0.02 0.00 -0.02
30 10.9732 0.00 -0.17 0.00 -0.02
31 10.9733 0.00 0.06 0.00 -0.02
32 10.9734 0.00 -0.18 0.00 0.18
33 11.0827 0.00 -0.09 0.00 0.21
34 11.0828 0.00 -0.01 0.00 -0.07
35 11.0828 0.00 0.39 0.00 -0.27
36 12.1257 0.00 0.01 0.00 -0.00
37 12.1259 0.00 -0.02 0.00 0.00
38 12.1284 0.00 0.02 0.00 0.02
39 12.1286 0.00 0.01 0.00 -0.00
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.
469610 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.014 43.014 43.014 ecceobj 0.025 0.025 0.025 incobj 1.487 1.487 1.487 qmin 41.570 41.571 41.566 qmax 45.269 45.269 45.269 amean 43.330 43.330 43.330 amin 42.999 42.998 42.999 amax 43.664 43.664 43.667 emean 0.020 0.020 0.020 emin 0.002 0.002 0.001 emax 0.037 0.037 0.037 imean 0.846 0.846 0.846 imin 0.321 0.321 0.321 imax 1.218 1.218 1.218 excite_mean 0.025 0.025 0.025 fracstop 1.000 1.000 1.000 cjmean 3.093 3.093 3.093 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 193.4 193.4 193.5 kozaiamp 179.9 179.9 180.0