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: 13JX67
# Created Wed Dec 25 02:09:24 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 33 observations of 33
# Arc: 6.15y
# First observation: 2013/04/10
# Last observation: 2019/06/06
# Chi-squared of fit: 3.80 DOF: 60 RMS: 0.06
# Min/Max residuals: -0.17 0.12
# Exact a, adot, b, bdot, g, gdot:
1.594104E-05 2.457188E-02 -2.321681E-06 -3.229365E-03 2.439967E-02 2.376136E-03
# Covariance matrix:
1.6008E-13 -1.0531E-13 -7.3708E-15 1.2607E-14 1.0315E-13 -6.4790E-13
-1.0531E-13 2.1246E-13 1.2998E-14 -2.8181E-14 2.6736E-14 1.4354E-12
-7.3708E-15 1.2998E-14 6.8599E-14 -1.7629E-14 -1.7801E-15 9.2828E-14
1.2607E-14 -2.8181E-14 -1.7629E-14 1.4673E-14 -3.5078E-15 -2.0055E-13
1.0315E-13 2.6736E-14 -1.7801E-15 -3.5078E-15 2.5470E-13 1.6610E-13
-6.4790E-13 1.4354E-12 9.2828E-14 -2.0055E-13 1.6610E-13 1.0216E-11
# lat0 lon0 xBary yBary zBary JD0
7.660234 -119.975403 0.635419 0.103560 -0.769829 2456393.024908
# Heliocentric elements and errors
Epoch: 2456392.5000 = 2013/04/10
Mean Anomaly: 35.33546 +/- 0.027
Argument of Peri: 89.24335 +/- 0.039
Long of Asc Node: 104.47911 +/- 0.001
Inclination: 10.51165 +/- 0.000
Eccentricity: 0.12683644 +/- 0.0001
Semi-Major Axis: 46.24955412 +/- 0.0053
Time of Perihelion: 2445116.1641 +/- 8.9
Perihelion: 40.38342538 +/- 0.0078
Aphelion: 52.11568286 +/- 0.0087
Period (y) 314.5354 +/- 0.05
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -21.23139721 +/- 0.0004
Ecliptic Y -35.53848224 +/- 0.0007
Ecliptic Z 5.46306332 +/- 0.0001
Ecliptic XDOT 0.00222592 +/- 0.0000
Ecliptic YDOT -0.00164796 +/- 0.0000
Ecliptic ZDOT -0.00032345 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.75639480 +/- 0.0007
Geocenter to KBO 40.98412133 +/- 0.0008
# Hcoef: 6.65
The following table shows the complete astrometric record for 13JX67. 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 (13JX67) followed by the observatory code and reference code for the source of the astrometry.
2013 04 10.52413 15 58 00.424 -12 39 42.67 22.7r 13JX67 568 C~2lTW 2013 04 10.56492 15 58 00.283 -12 39 42.04 22.6r 13JX67 568 C~2lTW 2013 04 17.46844 15 57 35.263 -12 37 49.90 23.0r 13JX67 568 C~2lTW 2013 04 17.47543 15 57 35.245 -12 37 49.83 22.6r 13JX67 568 C~2lTW 2013 04 19.57778 15 57 27.052 -12 37 15.42 22.8r 13JX67 568 C~2lTW 2013 05 08.43031 15 56 04.825 -12 32 15.07 22.7r 13JX67 568 C~2lTW 2013 05 08.47938 15 56 04.596 -12 32 14.33 22.8r 13JX67 568 C~2lTW 2013 05 08.52324 15 56 04.382 -12 32 13.65 22.8r 13JX67 568 C~2lTW 2013 05 09.53023 15 55 59.645 -12 31 58.50 22.7r 13JX67 568 C~2lTW 2013 05 10.53581 15 55 54.901 -12 31 43.45 22.7r 13JX67 568 C~2lTW 2013 06 04.38901 15 53 55.784 -12 26 27.50 22.6r 13JX67 568 C~2lTW 2013 06 06.39243 15 53 46.455 -12 26 08.11 22.8r 13JX67 568 C~2lTW 2013 07 02.34127 15 51 59.675 -12 23 42.47 22.9r 13JX67 568 C~2lTW 2013 07 03.37823 15 51 56.142 -12 23 41.13 22.7r 13JX67 568 C~2lTW 2014 03 06.59120 16 04 35.832 -13 15 13.49 23.1r 13JX67 568 C~2lTW 2014 04 30.44035 16 02 12.840 -13 02 24.17 22.7r 13JX67 568 C~2lTW 2014 04 30.49188 16 02 12.603 -13 02 23.47 22.7r 13JX67 568 C~2lTW 2014 04 30.54366 16 02 12.368 -13 02 22.54 22.6r 13JX67 568 C~2lTW 2014 04 30.54871 16 02 12.350 -13 02 22.52 22.8r 13JX67 568 C~2lTW 2014 05 05.50954 16 01 50.104 -13 01 07.44 22.9r 13JX67 568 C~2lTW 2014 05 06.45103 16 01 45.796 -13 00 53.39 22.7r 13JX67 568 C~2lTW 2014 05 06.50198 16 01 45.556 -13 00 52.64 22.8r 13JX67 568 C~2lTW 2014 05 06.57809 16 01 45.199 -13 00 51.48 22.7r 13JX67 568 C~2lTW 2014 06 21.43206 15 58 11.329 -12 52 36.75 22.8r 13JX67 568 C~2lTW 2014 06 22.40477 15 58 07.323 -12 52 31.87 22.7r 13JX67 568 C~2lTW 2014 06 30.42685 15 57 36.160 -12 52 02.82 22.8r 13JX67 568 C~2lTW 2015 03 22.58694 16 09 46.707 -13 39 09.67 22.7r 13JX67 568 C~2lTW 2015 04 18.50253 16 08 32.677 -13 32 53.52 22.9r 13JX67 568 C~2lTW 2019 05 06.313270 16 29 22.65 -15 12 49.2 22.9G 13JX67 705 C~39ob 2019 05 06.362740 16 29 22.41 -15 12 48.6 22.8G 13JX67 705 C~39ob 2019 05 06.432900 16 29 22.11 -15 12 48.0 23.1G 13JX67 705 C~39ob 2019 06 06.332720 16 26 55.625 -15 07 33.17 22.7G 13JX67 G37 C~36nx 2019 06 06.384710 16 26 55.357 -15 07 32.59 13JX67 G37 C~36nx
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 0.05
2 0.0001 0.00 0.03 0.00 0.02
3 0.0190 0.00 -0.08 0.00 0.02
4 0.0190 0.00 0.06 0.00 -0.02
5 0.0248 0.00 0.00 0.00 0.06
6 0.0764 0.00 0.04 0.00 0.06
7 0.0765 0.00 0.12 0.00 0.05
8 0.0767 0.00 0.05 0.00 0.06
9 0.0794 0.00 -0.04 0.00 0.00
10 0.0822 0.00 0.00 0.00 -0.01
11 0.1502 0.00 -0.04 0.00 0.03
12 0.1557 0.00 0.06 0.00 -0.07
13 0.2267 0.00 -0.01 0.00 -0.07
14 0.2296 0.00 -0.01 0.00 -0.05
15 0.9037 0.00 -0.07 0.00 -0.03
16 1.0538 0.00 0.11 0.00 0.02
17 1.0540 0.00 0.01 0.00 -0.07
18 1.0541 0.00 -0.03 0.00 0.06
19 1.0541 0.00 0.04 0.00 0.01
20 1.0677 0.00 -0.01 0.00 -0.02
21 1.0703 0.00 -0.01 0.00 0.01
22 1.0704 0.00 -0.03 0.00 0.00
23 1.0706 0.00 -0.04 0.00 0.03
24 1.1962 0.00 -0.03 0.00 -0.06
25 1.1989 0.00 -0.05 0.00 -0.06
26 1.2208 0.00 0.01 0.00 0.01
27 1.9468 0.00 0.02 0.00 -0.00
28 2.0205 0.00 0.01 0.00 -0.11
29 6.0692 0.00 0.12 0.00 0.08
30 6.0694 0.00 -0.17 0.00 0.10
31 6.0696 0.00 0.01 0.00 -0.13
32 6.1542 0.00 0.10 0.00 -0.07
33 6.1543 0.00 -0.10 0.00 0.09
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.
13JX67 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.078 46.078 46.078 ecceobj 0.123 0.123 0.123 incobj 10.503 10.503 10.503 qmin 39.957 39.945 39.941 qmax 53.305 53.284 53.296 amean 46.459 46.458 46.459 amin 46.070 46.069 46.070 amax 46.889 46.885 46.887 emean 0.125 0.125 0.125 emin 0.114 0.114 0.114 emax 0.137 0.137 0.137 imean 8.914 8.914 8.916 imin 8.510 8.512 8.512 imax 9.344 9.344 9.345 excite_mean 0.199 0.199 0.199 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 180.6 180.7 180.6 kozaiamp 180.0 180.0 179.9