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: 13SE112
# Created Sun Dec 22 02:09:40 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 16 observations of 16
# Arc: 8.10y
# First observation: 2013/09/29
# Last observation: 2021/11/05
# Chi-squared of fit: 5.11 DOF: 26 RMS: 0.10
# Min/Max residuals: -0.24 0.20
# Exact a, adot, b, bdot, g, gdot:
1.618235E-05 2.887406E-02 1.932204E-06 2.901203E-03 2.710521E-02 2.168925E-03
# Covariance matrix:
4.1339E-13 -2.2554E-13 2.0612E-14 -2.0772E-14 4.2256E-13 -9.6112E-13
-2.2554E-13 1.9686E-13 -2.0060E-14 2.0424E-14 -3.5078E-13 9.3989E-13
2.0612E-14 -2.0060E-14 2.2255E-13 -4.1202E-14 4.3398E-14 -1.0295E-13
-2.0772E-14 2.0424E-14 -4.1202E-14 1.4135E-14 -4.1173E-14 1.0424E-13
4.2256E-13 -3.5078E-13 4.3398E-14 -4.1173E-14 1.6345E-12 -1.9685E-12
-9.6112E-13 9.3989E-13 -1.0295E-13 1.0424E-13 -1.9685E-12 4.8111E-12
# lat0 lon0 xBary yBary zBary JD0
3.058945 -2.966531 -0.153957 0.052934 -0.988627 2456564.693648
# Heliocentric elements and errors
Epoch: 2456564.5000 = 2013/09/29
Mean Anomaly: 31.68372 +/- 0.026
Argument of Peri: 346.80983 +/- 0.030
Long of Asc Node: 329.95136 +/- 0.001
Inclination: 6.46930 +/- 0.000
Eccentricity: 0.12928261 +/- 0.0002
Semi-Major Axis: 42.30397849 +/- 0.0108
Time of Perihelion: 2447719.3757 +/- 8.0
Perihelion: 36.83480989 +/- 0.0123
Aphelion: 47.77314708 +/- 0.0145
Period (y) 275.1567 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 37.78763954 +/- 0.0017
Ecliptic Y -1.80104570 +/- 0.0001
Ecliptic Z 1.96879569 +/- 0.0001
Ecliptic XDOT 0.00034763 +/- 0.0000
Ecliptic YDOT 0.00290078 +/- 0.0000
Ecliptic ZDOT 0.00030446 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.88168437 +/- 0.0017
Geocenter to KBO 36.89326661 +/- 0.0017
# Hcoef: 7.87
The following table shows the complete astrometric record for 13SE112. 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 (13SE112) followed by the observatory code and reference code for the source of the astrometry.
2013 09 29.19287 23 44 14.992 +01 37 39.37 24.3r 13SE112 W84 C~52RU 2013 09 29.19427 23 44 14.975 +01 37 39.33 23.5i 13SE112 W84 C~52RU 2013 10 28.03670 23 42 11.144 +01 24 01.09 23.4r 13SE112 W84 C~52RU 2013 10 28.03957 23 42 11.144 +01 24 00.99 23.4i 13SE112 W84 C~52RU 2013 11 08.12202 23 41 36.251 +01 19 51.34 23.7r 13SE112 W84 C~52RU 2016 08 26.21199 00 04 12.167 +04 17 23.03 23.9r 13SE112 W84 C~52RU 2016 09 11.23873 00 02 59.741 +04 10 35.40 23.2i 13SE112 W84 C~52RU 2016 09 22.12861 00 02 06.982 +04 05 19.33 23.6r 13SE112 W84 C~52RU 2016 09 22.12998 00 02 06.988 +04 05 19.03 24.1g 13SE112 W84 C~52RU 2017 09 27.17868 00 07 27.425 +04 50 13.64 23.8r 13SE112 W84 C~52RU 2017 09 27.18004 00 07 27.408 +04 50 13.49 23.0i 13SE112 W84 C~52RU 2017 10 13.16303 00 06 11.034 +04 42 06.55 22.9i 13SE112 W84 C~52RU 2017 10 13.16440 00 06 11.027 +04 42 06.27 23.3r 13SE112 W84 C~52RU 2021 11 05.122760 00 27 20.242 +07 36 06.72 23.5G 13SE112 G37 C~5BQk 2021 11 05.172520 00 27 20.063 +07 36 05.46 13SE112 G37 C~5BQk 2021 11 05.221160 00 27 19.871 +07 36 04.27 13SE112 G37 C~5BQk
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 0.15 0.00 0.01
2 0.0000 0.00 -0.01 0.00 0.01
3 0.0790 0.00 -0.12 0.00 -0.02
4 0.0790 0.00 0.04 0.00 -0.05
5 0.1093 0.00 -0.05 0.00 0.11
6 2.9076 0.00 0.04 0.00 -0.15
7 2.9515 0.00 -0.00 0.00 0.20
8 2.9813 0.00 -0.14 0.00 0.02
9 2.9813 0.00 0.05 0.00 -0.24
10 3.9945 0.00 0.07 0.00 0.06
11 3.9945 0.00 -0.08 0.00 -0.05
12 4.0382 0.00 0.08 0.00 0.17
13 4.0383 0.00 0.07 0.00 -0.07
14 8.1011 0.00 -0.14 0.00 -0.10
15 8.1012 0.00 0.07 0.00 -0.01
16 8.1014 0.00 0.02 0.00 0.12
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.
13SE112 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.551 42.551 42.551 ecceobj 0.135 0.135 0.135 incobj 6.453 6.453 6.453 qmin 35.462 35.462 35.463 qmax 49.713 49.713 49.713 amean 42.328 42.329 42.328 amin 41.912 41.911 41.912 amax 42.805 42.805 42.805 emean 0.139 0.139 0.139 emin 0.116 0.116 0.116 emax 0.163 0.163 0.163 imean 6.937 6.937 6.937 imin 5.911 5.910 5.911 imax 8.094 8.095 8.094 excite_mean 0.184 0.184 0.184 fracstop 1.000 1.000 1.000 cjmean 3.042 3.042 3.042 libcent 0 178.9 179.0 178.8 libamp 0 90.0 89.9 90.0 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 193.8 193.9 193.7 kozaiamp 179.9 179.9 179.9