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: 578559
# Created Sun Dec 22 02:07:38 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 86 observations of 86
# Arc: 13.30y
# First observation: 2008/02/09
# Last observation: 2021/05/30
# Chi-squared of fit: 51.17 DOF: 166 RMS: 0.14
# Min/Max residuals: -0.36 0.57
# Exact a, adot, b, bdot, g, gdot:
2.517619E-05 1.265654E-01 1.043250E-05 4.643027E-02 7.342282E-02 -2.373254E-02
# 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
7.498510 119.921472 -0.332417 0.121744 -0.924396 2454505.764014
# Heliocentric elements and errors
Epoch: 2454506.5000 = 2008/02/10
Mean Anomaly: 340.33629 +/- 0.000
Argument of Peri: 58.39935 +/- 0.000
Long of Asc Node: 102.55055 +/- 0.000
Inclination: 21.00902 +/- 0.000
Eccentricity: 0.31600462 +/- 0.0000
Semi-Major Axis: 20.15537486 +/- 0.0000
Time of Perihelion: 2456311.7926 +/- 0.0
Perihelion: 13.78618327 +/- 0.0000
Aphelion: 26.52456644 +/- 0.0000
Period (y) 90.4887 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -7.48898386 +/- 0.0000
Ecliptic Y 12.34054875 +/- 0.0000
Ecliptic Z 1.77752075 +/- 0.0000
Ecliptic XDOT -0.00353361 +/- 0.0000
Ecliptic YDOT -0.00331067 +/- 0.0000
Ecliptic ZDOT 0.00160092 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 14.54425667 +/- 0.0000
Geocenter to KBO 13.61985963 +/- 0.0000
# Hcoef: 10.23
The following table shows the complete astrometric record for 578559. 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 (578559) followed by the observatory code and reference code for the source of the astrometry.
2008 02 09.26326 08 15 31.53 +27 29 11.7 22.1V 578559 G96 C~1vXG 2008 02 09.26988 08 15 31.39 +27 29 11.9 22.8V 578559 G96 C~1vXG 2008 02 09.27662 08 15 31.32 +27 29 12.6 21.2V 578559 G96 C~1vXG 2008 02 09.28330 08 15 31.24 +27 29 13.0 21.6V 578559 G96 C~1vXG 2012 01 22.45138 10 47 40.888 +26 08 07.72 21.6w 578559 F51 C~1vXG 2012 01 22.46554 10 47 40.754 +26 08 09.61 21.6w 578559 F51 C~1vXG 2012 01 22.47961 10 47 40.632 +26 08 11.21 21.7w 578559 F51 C~1vXG 2012 01 22.49362 10 47 40.501 +26 08 12.80 21.7w 578559 F51 C~1vXG 2012 03 14.30753 10 37 23.462 +27 31 30.58 21.5r 578559 F51 C~1vXG 2012 03 14.31873 10 37 23.317 +27 31 31.12 21.7r 578559 F51 C~1vXG 2012 03 14.33023 10 37 23.178 +27 31 31.94 21.8g 578559 F51 C~1vXG 2012 03 14.34200 10 37 23.024 +27 31 32.27 22.1g 578559 F51 C~1vXG 2012 12 29.55014 11 25 42.882 +23 37 35.62 21.9G 578559 F51 C~2kPp 2012 12 29.56064 11 25 42.882 +23 37 36.74 22.1G 578559 F51 C~2kPp 2013 03 04.56950 11 17 22.870 +25 38 27.13 21.1G 578559 F51 C~2kPp 2014 01 24.65398 11 59 45.016 +22 06 52.46 22.2G 578559 F51 C~2kPp 2014 02 20.54253 11 56 18.807 +23 00 12.41 21.4i 578559 F51 C~1vXG 2014 02 20.55601 11 56 18.661 +23 00 13.65 21.2i 578559 F51 C~1vXG 2014 02 20.56959 11 56 18.531 +23 00 15.51 21.3i 578559 F51 C~1vXG 2014 02 20.58325 11 56 18.372 +23 00 16.88 21.2i 578559 F51 C~1vXG 2014 02 24.39927 11 55 37.603 +23 07 28.97 21.4w 578559 F51 C~1vXG 2014 02 24.41181 11 55 37.466 +23 07 30.48 21.4w 578559 F51 C~1vXG 2014 02 24.42433 11 55 37.321 +23 07 31.83 21.6w 578559 F51 C~1vXG 2014 02 24.43690 11 55 37.187 +23 07 33.22 21.6w 578559 F51 C~1vXG 2014 04 28.36701 11 43 50.207 +24 05 19.69 21.6w 578559 F51 C~1vXG 2014 04 28.37978 11 43 50.114 +24 05 19.65 21.7w 578559 F51 C~1vXG 2014 04 28.39260 11 43 50.023 +24 05 19.36 22.0w 578559 F51 C~1vXG 2014 06 09.30032 11 42 13.573 +23 22 12.42 22.0G 578559 F51 C~2kPp 2014 12 25.58548 12 32 10.056 +18 40 06.51 21.7G 578559 F51 C~2kPp 2014 12 27.59320 12 32 22.849 +18 42 15.67 21.7G 578559 F51 C~2kPp 2015 01 15.54479 12 33 27.109 +19 08 23.69 21.8r 578559 F51 C~1vXG 2015 01 15.55600 12 33 27.099 +19 08 24.79 21.5r 578559 F51 C~1vXG 2015 01 15.57852 12 33 27.113 +19 08 27.20 21.6r 578559 F51 C~1vXG 2015 03 15.52149 12 26 53.141 +20 56 55.40 21.6r 578559 F51 C~1vXG 2015 03 15.53307 12 26 52.992 +20 56 56.52 21.5r 578559 F51 C~1vXG 2015 03 15.54468 12 26 52.859 +20 56 57.59 21.6r 578559 F51 C~1vXG 2015 03 15.55631 12 26 52.715 +20 56 58.79 21.5r 578559 F51 C~1vXG 2015 04 13.29306 12 21 05.877 +21 29 06.84 21.6w 578559 F51 C~1vXG 2015 04 13.30486 12 21 05.748 +21 29 07.30 21.6w 578559 F51 C~1vXG 2015 04 13.31658 12 21 05.603 +21 29 07.83 21.6w 578559 F51 C~1vXG 2015 04 13.32826 12 21 05.469 +21 29 08.20 21.5w 578559 F51 C~1vXG 2015 12 23.62593 13 02 15.033 +15 47 42.94 21.8G 578559 F51 C~2kPp 2016 02 04.49164 13 04 37.363 +16 43 34.48 22.0G 578559 F51 C~2kPp 2016 02 04.50545 13 04 37.317 +16 43 36.15 21.8G 578559 F51 C~2kPp 2016 02 04.51924 13 04 37.270 +16 43 37.51 21.5G 578559 F51 C~2kPp 2016 02 04.53311 13 04 37.242 +16 43 38.85 22.0G 578559 F51 C~2kPp 2016 02 21.50724 13 03 14.511 +17 15 00.78 21.9G 578559 F51 C~2kPp 2016 03 03.43009 13 01 46.277 +17 35 19.45 21.6G 578559 F51 C~2kPp 2016 03 03.44454 13 01 46.137 +17 35 20.98 21.6G 578559 F51 C~2kPp 2016 03 12.57538 13 00 15.672 +17 51 26.17 21.8G 578559 F51 C~2kPp 2016 03 12.58785 13 00 15.544 +17 51 27.42 21.6G 578559 F51 C~2kPq 2016 03 12.60026 13 00 15.420 +17 51 28.75 21.5G 578559 F51 C~2kPq 2016 03 12.61268 13 00 15.271 +17 51 29.88 21.7G 578559 F51 C~2kPq 2016 03 13.58277 13 00 04.957 +17 53 07.79 21.5G 578559 F51 C~2kPq 2016 03 13.59540 13 00 04.809 +17 53 09.13 21.6G 578559 F51 C~2kPq 2016 03 13.60725 13 00 04.683 +17 53 10.30 21.7G 578559 F51 C~2kPq 2016 03 13.61915 13 00 04.551 +17 53 11.39 21.7G 578559 F51 C~2kPq 2016 04 11.31152 12 54 27.662 +18 30 46.85 21.5G 578559 F51 C~2kPq 2016 04 11.32317 12 54 27.523 +18 30 47.53 21.6G 578559 F51 C~2kPq 2016 04 11.33484 12 54 27.384 +18 30 48.15 21.6G 578559 F51 C~2kPq 2016 04 11.34670 12 54 27.239 +18 30 48.72 21.5G 578559 F51 C~2kPq 2016 04 24.46192 12 51 56.216 +18 38 54.43 22.0G 578559 F51 C~2kPq 2016 05 03.28190 12 50 24.956 +18 40 35.75 21.9G 578559 F51 C~2kPq 2016 05 23.36331 12 47 46.845 +18 32 54.29 21.9G 578559 F51 C~2kPq 2016 06 04.31084 12 46 54.409 +18 21 07.80 21.8G 578559 F51 C~2kPq 2016 06 04.32460 12 46 54.368 +18 21 06.84 21.9G 578559 F51 C~2kPq 2016 06 04.33857 12 46 54.319 +18 21 05.84 22.0G 578559 F51 C~2kPq 2016 06 04.35244 12 46 54.277 +18 21 04.85 21.8G 578559 F51 C~2kPq 2017 02 02.55066 13 34 21.437 +13 32 04.90 21.8G 578559 F51 C~2kPq 2017 02 02.56229 13 34 21.450 +13 32 05.97 21.9G 578559 F51 C~2kPq 2017 02 02.57394 13 34 21.432 +13 32 07.09 22.1G 578559 F51 C~2kPq 2017 02 02.58560 13 34 21.421 +13 32 08.25 21.9G 578559 F51 C~2kPq 2017 03 19.59079 13 29 57.504 +14 48 37.42 21.9G 578559 F51 C~2kPq 2017 03 27.56178 13 28 31.489 +15 00 40.42 21.6G 578559 F51 C~2kPq 2017 03 27.57315 13 28 31.365 +15 00 41.39 21.3G 578559 F51 C~2kPq 2017 03 27.58453 13 28 31.235 +15 00 42.42 21.5G 578559 F51 C~2kPq 2018 02 12.56145 14 02 00.837 +10 33 28.79 21.8G 578559 F51 C~2kPq 2018 02 12.57356 14 02 00.821 +10 33 29.74 22.1G 578559 F51 C~2kPq 2018 02 12.58566 14 02 00.798 +10 33 30.86 21.8G 578559 F51 C~2kPq 2018 02 12.59772 14 02 00.787 +10 33 32.05 22.5G 578559 F51 C~2kPq 2019 05 08.50090 14 16 55.933 +09 03 03.57 22.1w 578559 F51 C~35bg 2019 05 08.51248 14 16 55.833 +09 03 03.72 22.2w 578559 F51 C~35bg 2019 05 08.52408 14 16 55.666 +09 03 04.27 22.1w 578559 F51 C~35bg 2021 05 30.274227 15 02 32.251 +02 48 00.95 22.3w 578559 F51 C~4qMs 2021 05 30.286063 15 02 32.118 +02 48 00.76 22.6w 578559 F51 C~4qMs 2021 05 30.297883 15 02 32.019 +02 48 00.90 22.5w 578559 F51 C~4qMs
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 0.45 0.00 -0.18
2 0.0000 0.00 -0.36 0.00 -0.34
3 0.0000 0.00 -0.09 0.00 -0.01
4 0.0001 0.00 0.02 0.00 0.03
5 3.9512 0.00 0.07 0.00 -0.14
6 3.9513 0.00 -0.05 0.00 0.07
7 3.9513 0.00 -0.00 0.00 0.01
8 3.9513 0.00 -0.09 0.00 -0.06
9 4.0932 0.00 -0.00 0.00 0.20
10 4.0932 0.00 -0.07 0.00 0.09
11 4.0933 0.00 0.01 0.00 0.25
12 4.0933 0.00 -0.08 0.00 -0.10
13 4.8878 0.00 -0.05 0.00 0.01
14 4.8879 0.00 -0.07 0.00 0.10
15 5.0659 0.00 -0.09 0.00 -0.08
16 5.9586 0.00 -0.07 0.00 -0.02
17 6.0322 0.00 -0.00 0.00 0.09
18 6.0323 0.00 -0.03 0.00 -0.21
19 6.0323 0.00 0.19 0.00 0.10
20 6.0324 0.00 -0.01 0.00 -0.09
21 6.0428 0.00 0.04 0.00 -0.05
22 6.0428 0.00 0.09 0.00 0.05
23 6.0429 0.00 0.03 0.00 -0.01
24 6.0429 0.00 0.14 0.00 -0.03
25 6.2152 0.00 0.31 0.00 -0.05
26 6.2152 0.00 0.42 0.00 0.13
27 6.2153 0.00 0.57 0.00 0.05
28 6.3300 0.00 -0.05 0.00 -0.07
29 6.8756 0.00 -0.08 0.00 0.03
30 6.8811 0.00 -0.15 0.00 -0.09
31 6.9330 0.00 0.08 0.00 -0.08
32 6.9330 0.00 -0.14 0.00 -0.08
33 6.9331 0.00 -0.07 0.00 0.12
34 7.0945 0.00 0.09 0.00 0.12
35 7.0945 0.00 -0.04 0.00 0.16
36 7.0945 0.00 0.07 0.00 0.14
37 7.0946 0.00 0.03 0.00 0.25
38 7.1733 0.00 -0.04 0.00 -0.03
39 7.1733 0.00 0.10 0.00 -0.01
40 7.1733 0.00 -0.02 0.00 0.09
41 7.1733 0.00 0.02 0.00 0.03
42 7.8696 0.00 -0.19 0.00 -0.07
43 7.9869 0.00 0.03 0.00 0.00
44 7.9870 0.00 -0.06 0.00 0.19
45 7.9870 0.00 -0.17 0.00 0.07
46 7.9870 0.00 0.01 0.00 -0.07
47 8.0335 0.00 0.17 0.00 -0.13
48 8.0634 0.00 -0.28 0.00 0.46
49 8.0635 0.00 -0.34 0.00 0.40
50 8.0885 0.00 -0.15 0.00 0.00
51 8.0885 0.00 -0.04 0.00 -0.01
52 8.0885 0.00 0.11 0.00 0.07
53 8.0886 0.00 -0.11 0.00 -0.05
54 8.0912 0.00 0.11 0.00 -0.10
55 8.0913 0.00 -0.04 0.00 -0.02
56 8.0913 0.00 0.02 0.00 -0.03
57 8.0913 0.00 -0.01 0.00 -0.13
58 8.1699 0.00 -0.08 0.00 -0.03
59 8.1699 0.00 -0.04 0.00 0.03
60 8.1699 0.00 0.01 0.00 0.04
61 8.1700 0.00 0.01 0.00 -0.01
62 8.2059 0.00 0.10 0.00 -0.04
63 8.2300 0.00 -0.21 0.00 0.05
64 8.2850 0.00 -0.26 0.00 -0.12
65 8.3177 0.00 0.04 0.00 -0.09
66 8.3178 0.00 0.08 0.00 -0.06
67 8.3178 0.00 0.01 0.00 -0.05
68 8.3178 0.00 0.04 0.00 -0.04
69 8.9837 0.00 -0.18 0.00 -0.01
70 8.9837 0.00 0.11 0.00 -0.02
71 8.9837 0.00 -0.06 0.00 0.01
72 8.9838 0.00 -0.12 0.00 0.08
73 9.1070 0.00 -0.09 0.00 -0.03
74 9.1288 0.00 -0.01 0.00 -0.09
75 9.1288 0.00 0.08 0.00 -0.09
76 9.1289 0.00 0.08 0.00 -0.03
77 10.0104 0.00 -0.01 0.00 -0.00
78 10.0104 0.00 0.01 0.00 -0.13
79 10.0105 0.00 -0.08 0.00 -0.09
80 10.0105 0.00 0.01 0.00 0.02
81 11.2423 0.00 -0.19 0.00 -0.05
82 11.2423 0.00 0.31 0.00 -0.19
83 11.2423 0.00 -0.20 0.00 0.06
84 13.3032 0.00 0.01 0.00 0.05
85 13.3033 0.00 -0.12 0.00 -0.15
86 13.3033 0.00 0.26 0.00 -0.01
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.
578559 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.272 20.272 20.273 ecceobj 0.316 0.316 0.316 incobj 20.972 20.972 20.972 qmin 13.736 13.736 13.736 qmax 26.784 26.784 27.031 amean 20.193 20.193 20.258 amin 20.032 20.032 20.032 amax 20.340 20.338 20.765 emean 0.313 0.313 0.311 emin 0.307 0.307 0.299 emax 0.319 0.319 0.319 imean 19.454 19.454 19.519 imin 19.353 19.353 19.353 imax 19.563 19.560 20.019 excite_mean 0.457 0.457 0.457 fracstop 0.002 0.002 0.002 cjmean 2.957 2.957 2.954 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 67.8 67.8 70.6 kozaiamp 10.2 10.1 14.8