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: 13EM149
# Created Wed Dec 25 02:09:19 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 44 observations of 44
# Arc: 9.96y
# First observation: 2005/05/04
# Last observation: 2015/04/21
# Chi-squared of fit: 8.25 DOF: 82 RMS: 0.08
# Min/Max residuals: -0.21 0.20
# Exact a, adot, b, bdot, g, gdot:
1.533065E-05 2.354122E-02 5.764145E-07 8.763558E-04 2.388471E-02 2.807035E-04
# Covariance matrix:
3.6682E-13 -8.2010E-14 5.8458E-16 -1.5240E-15 -3.8934E-14 -1.9134E-13
-8.2010E-14 1.1024E-13 -1.4946E-15 3.8824E-15 8.7920E-14 4.8861E-13
5.8458E-16 -1.4946E-15 3.5067E-13 -4.1127E-14 -1.2865E-15 -6.9651E-15
-1.5240E-15 3.8824E-15 -4.1127E-14 5.4498E-15 3.4707E-15 1.8112E-14
-3.8934E-14 8.7920E-14 -1.2865E-15 3.4707E-15 1.8175E-13 4.2604E-13
-1.9134E-13 4.8861E-13 -6.9651E-15 1.8112E-14 4.2604E-13 2.2778E-12
# lat0 lon0 xBary yBary zBary JD0
1.596847 -154.789127 -0.324373 0.026591 -0.950794 2453494.843703
# Heliocentric elements and errors
Epoch: 2453494.5000 = 2005/05/04
Mean Anomaly: 17.33387 +/- 0.053
Argument of Peri: 16.74559 +/- 0.061
Long of Asc Node: 169.22982 +/- 0.003
Inclination: 2.62886 +/- 0.000
Eccentricity: 0.06395187 +/- 0.0000
Semi-Major Axis: 45.58882708 +/- 0.0028
Time of Perihelion: 2448080.9890 +/- 16.5
Perihelion: 42.67333620 +/- 0.0033
Aphelion: 48.50431797 +/- 0.0036
Period (y) 307.8193 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.59143743 +/- 0.0007
Ecliptic Y -18.52649287 +/- 0.0003
Ecliptic Z 1.16676481 +/- 0.0000
Ecliptic XDOT 0.00112346 +/- 0.0000
Ecliptic YDOT -0.00246102 +/- 0.0000
Ecliptic ZDOT 0.00010137 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.82394406 +/- 0.0006
Geocenter to KBO 41.86782743 +/- 0.0007
# Hcoef: 6.71
The following table shows the complete astrometric record for 13EM149. 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 (13EM149) followed by the observatory code and reference code for the source of the astrometry.
2005 05 04.34296 13 35 48.23 -08 16 04.2 23.0r 13EM149 568 C~1XRT 2005 05 04.37717 13 35 48.08 -08 16 03.3 23.2r 13EM149 568 C~1XRT 2005 05 04.41844 13 35 47.91 -08 16 02.4 23.1r 13EM149 568 C~1XRT 2005 05 05.38801 13 35 43.85 -08 15 39.1 23.2r 13EM149 568 C~1XRT 2013 03 07.54156 14 21 05.364 -11 59 58.50 23.2r 13EM149 568 C~1XRT 2013 03 07.59862 14 21 05.208 -11 59 57.53 22.9r 13EM149 568 C~1XRT 2013 03 13.41329 14 20 49.24 -11 58 21.5 22.4R 13EM149 695 C~0uf3 2013 03 13.48923 14 20 48.99 -11 58 20.2 13EM149 695 C~0uf3 2013 03 14.48443 14 20 46.04 -11 58 02.5 13EM149 695 C~0uf3 2013 04 04.54263 14 19 29.666 -11 50 52.03 22.8r 13EM149 568 C~1XRT 2013 04 07.40318 14 19 17.738 -11 49 46.86 22.9r 13EM149 568 C~1XRT 2013 04 07.44689 14 19 17.549 -11 49 45.98 22.9r 13EM149 568 C~1XRT 2013 04 08.43552 14 19 13.361 -11 49 23.30 23.0r 13EM149 568 C~1XRT 2013 04 08.48075 14 19 13.162 -11 49 22.24 22.9r 13EM149 568 C~1XRT 2013 04 09.38210 14 19 09.315 -11 49 01.35 22.9r 13EM149 568 C~1XRT 2013 04 09.42533 14 19 09.131 -11 49 00.40 23.0r 13EM149 568 C~1XRT 2013 04 09.46848 14 19 08.934 -11 48 59.39 23.1r 13EM149 568 C~1XRT 2013 05 11.47017 14 16 45.930 -11 36 33.07 22.8r 13EM149 568 C~1XRT 2013 05 12.47149 14 16 41.560 -11 36 11.07 22.9r 13EM149 568 C~1XRT 2013 06 12.36752 14 14 46.437 -11 26 51.99 23.1r 13EM149 568 C~1XRT 2013 06 12.41250 14 14 46.306 -11 26 51.51 23.0r 13EM149 568 C~1XRT 2013 07 04.32702 14 14 00.195 -11 23 37.34 23.1r 13EM149 568 C~1XRT 2013 07 06.33482 14 13 57.843 -11 23 29.87 23.1r 13EM149 568 C~1XRT 2013 08 05.26320 14 14 03.966 -11 25 14.21 23.2r 13EM149 568 C~1XRT 2014 02 01.65794 14 26 50.112 -12 27 53.66 23.5r 13EM149 568 C~1XRT 2014 02 03.57011 14 26 51.027 -12 27 51.37 23.2r 13EM149 568 C~1XRT 2014 02 04.65008 14 26 51.376 -12 27 49.56 23.0r 13EM149 568 C~1XRT 2014 02 04.65538 14 26 51.374 -12 27 49.58 23.1r 13EM149 568 C~1XRT 2014 02 24.58174 14 26 38.680 -12 25 40.88 23.0r 13EM149 568 C~1XRT 2014 02 25.55135 14 26 37.159 -12 25 30.27 23.0r 13EM149 568 C~1XRT 2014 02 28.51276 14 26 32.021 -12 24 55.75 23.0r 13EM149 568 C~1XRT 2014 03 28.45338 14 25 11.431 -12 17 04.39 23.0r 13EM149 568 C~1XRT 2014 03 28.49795 14 25 11.256 -12 17 03.51 22.9r 13EM149 568 C~1XRT 2014 04 05.41760 14 24 40.040 -12 14 13.71 22.9r 13EM149 568 C~1XRT 2014 04 05.42769 14 24 40.002 -12 14 13.47 22.9r 13EM149 568 C~1XRT 2014 04 30.10956 14 22 51.12 -12 04 44.7 22.8V 13EM149 W84 C~2fc6 2014 04 30.17846 14 22 50.80 -12 04 43.1 13EM149 W84 C~2fc6 2014 05 01.09622 14 22 46.62 -12 04 22.0 13EM149 W84 C~2fc6 2014 05 01.16603 14 22 46.30 -12 04 20.4 13EM149 W84 C~2fc6 2014 05 22.41340 14 21 13.318 -11 56 38.59 22.9r 13EM149 568 C~1XRT 2014 05 28.38556 14 20 49.601 -11 54 44.62 22.9r 13EM149 568 C~1XRT 2014 07 18.29220 14 18 57.775 -11 46 57.37 23.1r 13EM149 568 C~1XRT 2015 04 21.42104 14 28 45.860 -12 31 34.14 22.8r 13EM149 568 C~2KOF 2015 04 21.48737 14 28 45.552 -12 31 32.57 22.7r 13EM149 568 C~2KOF
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 0.05 0.00 -0.02
2 0.0001 0.00 -0.01 0.00 0.06
3 0.0002 0.00 0.09 0.00 -0.03
4 0.0029 0.00 -0.14 0.00 0.06
5 7.8417 0.00 0.08 0.00 -0.13
6 7.8419 0.00 -0.02 0.00 -0.05
7 7.8578 0.00 0.09 0.00 -0.14
8 7.8580 0.00 -0.21 0.00 -0.17
9 7.8608 0.00 0.20 0.00 -0.03
10 7.9184 0.00 -0.06 0.00 -0.01
11 7.9262 0.00 0.04 0.00 0.14
12 7.9264 0.00 0.02 0.00 0.02
13 7.9291 0.00 0.10 0.00 -0.01
14 7.9292 0.00 0.06 0.00 0.01
15 7.9317 0.00 0.01 0.00 0.08
16 7.9318 0.00 0.08 0.00 0.03
17 7.9319 0.00 -0.05 0.00 0.05
18 8.0195 0.00 0.01 0.00 -0.05
19 8.0223 0.00 -0.08 0.00 -0.08
20 8.1068 0.00 -0.06 0.00 0.02
21 8.1070 0.00 -0.02 0.00 -0.10
22 8.1670 0.00 0.01 0.00 0.05
23 8.1725 0.00 -0.01 0.00 -0.03
24 8.2544 0.00 -0.01 0.00 -0.01
25 8.7483 0.00 -0.06 0.00 -0.05
26 8.7535 0.00 0.05 0.00 0.14
27 8.7565 0.00 0.03 0.00 0.03
28 8.7565 0.00 -0.02 0.00 0.00
29 8.8111 0.00 -0.01 0.00 0.06
30 8.8137 0.00 -0.04 0.00 0.11
31 8.8218 0.00 -0.02 0.00 0.08
32 8.8983 0.00 -0.02 0.00 -0.02
33 8.8984 0.00 -0.07 0.00 -0.06
34 8.9201 0.00 -0.04 0.00 -0.03
35 8.9201 0.00 0.02 0.00 -0.01
36 8.9877 0.00 0.02 0.00 -0.01
37 8.9879 0.00 -0.00 0.00 0.00
38 8.9904 0.00 -0.17 0.00 -0.12
39 8.9906 0.00 -0.13 0.00 -0.12
40 9.0488 0.00 0.01 0.00 0.04
41 9.0651 0.00 0.04 0.00 -0.01
42 9.2045 0.00 0.11 0.00 0.11
43 9.9633 0.00 0.14 0.00 0.06
44 9.9634 0.00 0.08 0.00 0.11
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.
13EM149 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.987 44.987 44.987 ecceobj 0.052 0.052 0.052 incobj 2.640 2.640 2.640 qmin 42.082 42.080 42.083 qmax 48.819 48.822 48.816 amean 45.322 45.322 45.322 amin 44.956 44.959 44.955 amax 45.693 45.694 45.693 emean 0.055 0.055 0.055 emin 0.042 0.042 0.042 emax 0.069 0.069 0.069 imean 2.767 2.767 2.767 imin 2.285 2.285 2.285 imax 3.188 3.188 3.188 excite_mean 0.073 0.073 0.073 fracstop 1.000 1.000 1.000 cjmean 3.111 3.111 3.111 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 174.9 174.9 174.9 kozaiamp 180.0 180.0 180.0