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: 529940
# Created Fri Apr 26 01:08:35 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 66 observations of 66
# Arc: 14.93y
# First observation: 2008/12/04
# Last observation: 2023/11/10
# Chi-squared of fit: 75.39 DOF: 126 RMS: 0.19
# Min/Max residuals: -0.84 0.50
# Exact a, adot, b, bdot, g, gdot:
1.761142E-05 2.969786E-02 -3.555967E-06 -5.275590E-03 2.637677E-02 3.468461E-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
8.230859 24.614486 -0.734840 0.094884 -0.655637 2454804.801614
# Heliocentric elements and errors
Epoch: 2454804.5000 = 2008/12/04
Mean Anomaly: 16.19966 +/- 0.000
Argument of Peri: 108.85913 +/- 0.000
Long of Asc Node: 243.58743 +/- 0.000
Inclination: 13.03255 +/- 0.000
Eccentricity: 0.32247416 +/- 0.0000
Semi-Major Axis: 54.75561331 +/- 0.0000
Time of Perihelion: 2448144.9520 +/- 0.0
Perihelion: 37.09834314 +/- 0.0000
Aphelion: 72.41288348 +/- 0.0000
Period (y) 405.1830 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.40996770 +/- 0.0000
Ecliptic Y 16.56816655 +/- 0.0000
Ecliptic Z 5.42743321 +/- 0.0000
Ecliptic XDOT -0.00088299 +/- 0.0000
Ecliptic YDOT 0.00298627 +/- 0.0000
Ecliptic ZDOT -0.00049052 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.57460149 +/- 0.0000
Geocenter to KBO 37.91210009 +/- 0.0000
# Hcoef: 6.30
The following table shows the complete astrometric record for 529940. 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 (529940) followed by the observatory code and reference code for the source of the astrometry.
2008 12 04.300860 01 18 35.74 +17 10 36.3 22.2V 529940 645 C~2POO 2008 12 04.301689 01 18 35.74 +17 10 36.4 22.0V 529940 645 C~2POO 2008 12 04.304177 01 18 35.75 +17 10 36.3 23.3V 529940 645 C~2POO 2010 10 03.55082 01 37 19.188 +18 24 41.16 22.1r 529940 F51 C~1w3k 2010 10 07.38191 01 37 00.813 +18 22 59.71 23.0w 529940 F51 C~1w3k 2010 10 07.39743 01 37 00.735 +18 22 59.33 22.2w 529940 F51 C~1w3k 2010 10 07.41301 01 37 00.663 +18 22 58.97 22.1w 529940 F51 C~1w3k 2010 10 07.43011 01 37 00.569 +18 22 58.54 22.4w 529940 F51 C~1w3k 2010 10 12.47489 01 36 35.849 +18 20 37.15 22.5w 529940 F51 C~1w3k 2010 10 12.49088 01 36 35.759 +18 20 36.80 22.5w 529940 F51 C~1w3k 2010 10 12.50644 01 36 35.700 +18 20 35.97 22.5w 529940 F51 C~1w3k 2010 10 12.52173 01 36 35.625 +18 20 35.53 22.5w 529940 F51 C~1w3k 2011 01 25.23629 01 32 15.842 +17 36 35.85 22.5w 529940 F51 C~1w3k 2011 01 25.24108 01 32 15.875 +17 36 35.94 22.6w 529940 F51 C~1w3k 2011 01 25.24614 01 32 15.867 +17 36 36.29 22.7w 529940 F51 C~1w3k 2011 01 25.25092 01 32 15.881 +17 36 36.19 22.6w 529940 F51 C~1w3k 2011 09 11.44445 01 45 56.754 +18 50 32.85 21.3i 529940 F51 C~1w3k 2012 09 26.58855 01 51 54.160 +19 03 01.13 21.0z 529940 F51 C~1w3k 2012 09 26.59958 01 51 54.126 +19 03 00.96 21.2z 529940 F51 C~1w3k 2012 10 11.36765 01 50 45.527 +18 57 04.85 22.4w 529940 F51 C~1w3k 2012 10 11.38265 01 50 45.449 +18 57 04.57 22.2w 529940 F51 C~1w3k 2012 10 11.39774 01 50 45.369 +18 57 03.96 21.9w 529940 F51 C~1w3k 2012 11 07.29405 01 48 32.795 +18 43 33.34 22.2w 529940 F51 C~1w3k 2012 11 07.32226 01 48 32.658 +18 43 32.78 22.1w 529940 F51 C~1w3k 2013 01 25.24422 01 45 57.356 +18 13 17.80 23.3G 529940 F51 C~2rXp 2013 02 11.23208 01 46 42.078 +18 13 17.54 22.7G 529940 F51 C~2rXp 2013 02 11.23734 01 46 42.091 +18 13 17.59 22.2w 529940 F51 C~1w3k 2013 07 16.59641 02 00 36.645 +19 20 53.83 22.5w 529940 F51 C~1w3k 2013 07 16.60129 02 00 36.667 +19 20 54.18 22.5w 529940 F51 C~1w3k 2013 07 16.60614 02 00 36.676 +19 20 54.02 22.7w 529940 F51 C~1w3k 2013 07 16.61105 02 00 36.668 +19 20 54.12 22.5w 529940 F51 C~1w3k 2013 08 19.54982 02 00 45.943 +19 25 54.44 21.9G 529940 F51 C~2rXp 2013 08 20.55909 02 00 44.526 +19 25 53.50 22.1G 529940 F51 C~2rXp 2013 10 24.33062 01 56 41.826 +19 07 32.83 22.2G 529940 F51 C~2rXp 2014 10 28.56443 02 03 18.085 +19 21 00.51 22.3G 529940 F51 C~2rXp 2014 11 17.29535 02 01 42.759 +19 10 58.82 21.8G 529940 F51 C~2rXp 2014 11 17.30729 02 01 42.694 +19 10 58.34 22.0G 529940 F51 C~2rXp 2014 12 11.20819 02 00 10.136 +18 59 13.98 22.7G 529940 F51 C~2rXp 2015 10 08.63162 02 11 49.575 +19 44 03.39 21.8G 529940 F51 C~2rXp 2016 01 07.32376 02 06 05.407 +19 04 02.90 22.5G 529940 F51 C~2rXp 2016 01 08.28337 02 06 04.759 +19 03 46.84 21.8G 529940 F51 C~2rXp 2016 01 25.28147 02 06 09.024 +19 00 26.62 23.3G 529940 F51 C~2rXp 2016 10 25.50197 02 17 13.476 +19 49 36.94 21.8G 529940 F51 C~2rXp 2016 10 25.51592 02 17 13.407 +19 49 36.51 22.4G 529940 F51 C~2rXp 2016 10 25.52990 02 17 13.343 +19 49 35.90 22.1G 529940 F51 C~2rXp 2016 10 25.54387 02 17 13.261 +19 49 35.59 22.1G 529940 F51 C~2rXp 2017 08 04.58062 02 27 44.245 +20 15 55.02 22.4G 529940 F51 C~2rXp 2017 08 04.59296 02 27 44.233 +20 15 55.53 22.6G 529940 F51 C~2rXp 2017 08 04.60540 02 27 44.249 +20 15 55.70 22.7G 529940 F51 C~2rXp 2017 10 01.40935 02 25 53.066 +20 10 51.71 22.1G 529940 F51 C~2rXp 2017 10 27.56005 02 23 50.575 +20 00 47.92 22.3G 529940 F51 C~2rXp 2017 11 13.43620 02 22 26.728 +19 52 55.40 21.4G 529940 F51 C~2rXp 2017 11 13.45023 02 22 26.659 +19 52 55.41 22.2G 529940 F51 C~2rXp 2017 11 13.46433 02 22 26.596 +19 52 54.90 21.4G 529940 F51 C~2rXp 2017 11 13.47844 02 22 26.531 +19 52 54.39 21.5G 529940 F51 C~2rXp 2017 12 07.25057 02 20 42.739 +19 41 41.21 22.7G 529940 F51 C~2rXp 2018 01 08.35227 02 19 25.146 +19 29 49.22 23.1G 529940 F51 C~2rXp 2020 10 15.39125 02 44 46.158 +20 34 57.28 22.2w 529940 F51 C~4Il2 2020 10 15.40454 02 44 46.109 +20 34 56.81 22.4w 529940 F51 C~4Il2 2020 10 15.41781 02 44 46.048 +20 34 56.62 22.3w 529940 F51 C~4Il2 2020 10 15.43100 02 44 45.975 +20 34 56.37 22.6w 529940 F51 C~4Il2 2020 12 09.112270 02 40 27.630 +20 11 57.49 22.5G 529940 G37 C~4TuX 2020 12 09.167090 02 40 27.373 +20 11 55.81 529940 G37 C~4TuX 2023 11 10.78201 03 02 09.52 +20 46 01.6 22.8w 529940 O18 C~7WJZ 2023 11 10.79644 03 02 09.44 +20 46 01.3 22.3w 529940 O18 C~7WJZ 2023 11 10.81086 03 02 09.39 +20 46 00.7 22.2w 529940 O18 C~7WJZ
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 0.01 0.00 0.09
2 0.0000 0.00 0.04 0.00 0.21
3 0.0000 0.00 0.29 0.00 0.19
4 1.8296 0.00 0.08 0.00 0.03
5 1.8401 0.00 -0.02 0.00 -0.15
6 1.8401 0.00 -0.04 0.00 -0.11
7 1.8401 0.00 0.04 0.00 -0.05
8 1.8402 0.00 -0.11 0.00 -0.02
9 1.8540 0.00 -0.14 0.00 0.11
10 1.8540 0.00 -0.28 0.00 0.22
11 1.8541 0.00 0.01 0.00 -0.16
12 1.8541 0.00 0.03 0.00 -0.15
13 2.1408 0.00 -0.28 0.00 -0.46
14 2.1408 0.00 0.07 0.00 -0.35
15 2.1408 0.00 -0.20 0.00 0.02
16 2.1409 0.00 -0.14 0.00 -0.06
17 2.7684 0.00 0.24 0.00 -0.05
18 3.8119 0.00 -0.22 0.00 -0.04
19 3.8119 0.00 0.01 0.00 0.02
20 3.8523 0.00 0.20 0.00 0.05
21 3.8524 0.00 0.15 0.00 0.17
22 3.8524 0.00 0.07 0.00 -0.04
23 3.9261 0.00 0.20 0.00 -0.03
24 3.9261 0.00 0.19 0.00 0.31
25 4.1422 0.00 -0.36 0.00 -0.84
26 4.1887 0.00 0.11 0.00 0.32
27 4.1887 0.00 0.03 0.00 0.35
28 4.6141 0.00 -0.30 0.00 0.11
29 4.6141 0.00 -0.11 0.00 0.38
30 4.6141 0.00 -0.11 0.00 0.13
31 4.6141 0.00 -0.36 0.00 0.14
32 4.7070 0.00 0.17 0.00 0.13
33 4.7098 0.00 0.50 0.00 -0.26
34 4.8871 0.00 -0.02 0.00 -0.04
35 5.8981 0.00 -0.04 0.00 -0.05
36 5.9521 0.00 0.10 0.00 0.08
37 5.9521 0.00 -0.04 0.00 -0.03
38 6.0175 0.00 -0.11 0.00 0.01
39 6.8428 0.00 -0.35 0.00 -0.14
40 7.0911 0.00 0.05 0.00 0.26
41 7.0937 0.00 0.09 0.00 -0.15
42 7.1403 0.00 0.23 0.00 -0.08
43 7.8910 0.00 0.03 0.00 0.09
44 7.8911 0.00 0.06 0.00 0.04
45 7.8911 0.00 0.17 0.00 -0.18
46 7.8912 0.00 -0.00 0.00 -0.11
47 8.6661 0.00 0.20 0.00 -0.30
48 8.6661 0.00 -0.11 0.00 0.10
49 8.6661 0.00 0.01 0.00 0.16
50 8.8244 0.00 -0.02 0.00 0.15
51 8.8960 0.00 -0.05 0.00 0.02
52 8.9422 0.00 -0.03 0.00 -0.39
53 8.9422 0.00 -0.03 0.00 0.03
54 8.9423 0.00 0.07 0.00 -0.07
55 8.9423 0.00 0.14 0.00 -0.17
56 9.0074 0.00 0.15 0.00 0.02
57 9.0953 0.00 -0.04 0.00 0.18
58 11.8634 0.00 -0.25 0.00 0.25
59 11.8634 0.00 -0.05 0.00 0.06
60 11.8634 0.00 -0.03 0.00 0.15
61 11.8635 0.00 -0.20 0.00 0.17
62 12.0132 0.00 0.37 0.00 0.19
63 12.0133 0.00 -0.22 0.00 -0.13
64 14.9336 0.00 -0.02 0.00 -0.05
65 14.9336 0.00 -0.12 0.00 -0.01
66 14.9336 0.00 0.23 0.00 -0.26
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.
529940 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 55.241 55.241 55.241 ecceobj 0.327 0.327 0.327 incobj 12.997 12.997 12.997 qmin 36.405 36.508 36.486 qmax 73.779 73.690 73.603 amean 54.635 54.638 54.637 amin 54.069 54.044 54.038 amax 55.357 55.353 55.371 emean 0.317 0.317 0.316 emin 0.303 0.303 0.301 emax 0.333 0.331 0.331 imean 14.595 14.618 14.649 imin 14.004 14.003 14.069 imax 15.139 15.260 15.176 excite_mean 0.405 0.405 0.405 fracstop 1.000 1.000 1.000 cjmean 3.023 3.023 3.023 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 185.4 188.6 185.5 kozaiamp 180.0 180.0 180.0