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: 13HG162 # Created Sat Apr 27 01:14:36 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 56 observations of 56 # Arc: 5.19y # First observation: 2012/02/24 # Last observation: 2017/05/03 # Chi-squared of fit: 167.29 DOF: 106 RMS: 0.31 # Min/Max residuals: -1.91 0.76 # Exact a, adot, b, bdot, g, gdot: 2.152667E-05 2.560929E-01 5.404550E-05 6.475874E-01 1.924036E-01 -4.499936E-03 # Covariance matrix: 5.7056E-13 -2.4807E-13 3.3241E-14 -1.0946E-13 1.3541E-13 -3.3114E-14 -2.4807E-13 6.0897E-13 -2.1905E-13 7.8536E-13 4.2277E-13 3.3326E-13 3.3241E-14 -2.1905E-13 7.1549E-13 -9.3550E-13 -9.6261E-14 -2.6028E-13 -1.0946E-13 7.8536E-13 -9.3550E-13 2.5100E-12 3.7058E-13 9.1808E-13 1.3541E-13 4.2277E-13 -9.6261E-14 3.7058E-13 7.0839E-13 1.9217E-13 -3.3114E-14 3.3326E-13 -2.6028E-13 9.1808E-13 1.9217E-13 3.6886E-13 # lat0 lon0 xBary yBary zBary JD0 -48.984186 -138.519510 0.909036 -0.298940 -0.260056 2455981.766584 # Heliocentric elements and errors Epoch: 2455981.5000 = 2012/02/24 Mean Anomaly: 359.89709 +/- 0.010 Argument of Peri: 312.54188 +/- 0.000 Long of Asc Node: 231.32795 +/- 0.000 Inclination: 68.49205 +/- 0.000 Eccentricity: 0.83734144 +/- 0.0001 Semi-Major Axis: 34.03838326 +/- 0.0000 Time of Perihelion: 2456002.2356 +/- 2.0 Perihelion: 5.53663433 +/- 0.0020 Aphelion: 62.54013219 +/- 0.0020 Period (y) 198.5919 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -3.45141920 +/- 0.0000 Ecliptic Y -1.83931949 +/- 0.0000 Ecliptic Z -3.92143832 +/- 0.0000 Ecliptic XDOT -0.00276851 +/- 0.0000 Ecliptic YDOT -0.00730353 +/- 0.0000 Ecliptic ZDOT 0.00609591 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 5.53833213 +/- 0.0000 Geocenter to KBO 5.19743700 +/- 0.0000 # Hcoef: 12.41
The following table shows the complete astrometric record for 13HG162. 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 (13HG162) followed by the observatory code and reference code for the source of the astrometry.
2012 02 24.265818 12 45 23.85 -59 54 09.9 13HG162 309 C~46rI 2012 02 24.274301 12 45 23.66 -59 54 10.1 13HG162 309 C~46rI 2013 04 03.55682 15 11 39.47 -29 34 52.9 20.2i 13HG162 F51 C~46rI 2013 04 03.56838 15 11 39.18 -29 34 48.8 20.2i 13HG162 F51 C~46rI 2013 04 16.48842 15 05 50.192 -28 14 18.18 20.4w 13HG162 F51 C~441A 2013 04 16.50456 15 05 49.714 -28 14 11.76 20.2w 13HG162 F51 C~441A 2013 05 05.40987 14 55 57.905 -25 56 00.88 20.1w 13HG162 F51 C~441A 2013 05 05.42465 14 55 57.418 -25 55 53.92 20.2w 13HG162 F51 C~441A 2013 05 05.43944 14 55 56.933 -25 55 46.99 20.1w 13HG162 F51 C~441A 2013 05 09.104907 14 54 00.58 -25 27 02.0 13HG162 W84 C~46rI 2013 05 09.110112 14 54 00.40 -25 26 59.5 13HG162 W84 C~46rI 2013 05 10.247477 14 53 24.50 -25 17 59.8 13HG162 W84 C~46rI 2013 05 10.255579 14 53 24.25 -25 17 56.1 13HG162 W84 C~46rI 2013 05 18.39364 14 49 15.66 -24 12 56.2 20.1i 13HG162 F51 C~46rI 2013 05 20.35925 14 48 18.25 -23 57 09.3 20.0i 13HG162 F51 C~46rI 2013 05 20.38092 14 48 17.61 -23 56 58.9 20.4r 13HG162 F51 C~46rI 2013 06 04.35510 14 41 49.71 -21 58 29.0 20.6r 13HG162 F51 C~46rI 2013 06 04.36866 14 41 49.40 -21 58 22.7 20.4r 13HG162 F51 C~46rI 2013 07 09.26897 14 34 41.85 -18 04 14.1 20.5z 13HG162 F51 C~46rI 2013 07 13.24795 14 34 40.87 -17 43 01.9 20.4y 13HG162 F51 C~46rI 2013 07 13.28005 14 34 40.89 -17 42 51.7 20.5z 13HG162 F51 C~46rI 2013 08 08.273632 14 38 21.86 -15 53 45.8 13HG162 568 C~46rI 2013 08 08.277538 14 38 21.92 -15 53 45.0 13HG162 568 C~46rI 2014 04 22.58966 16 11 05.12 -03 28 57.3 20.6i 13HG162 F51 C~46rI 2014 04 22.59722 16 11 04.95 -03 28 54.5 13HG162 F51 C~46rI 2014 04 24.39633 16 10 26.12 -03 18 17.4 13HG162 691 C~441A 2014 04 24.41401 16 10 25.71 -03 18 12.0 13HG162 691 C~441A 2014 04 24.43169 16 10 25.29 -03 18 05.3 13HG162 691 C~441A 2014 04 28.38346 16 08 56.32 -02 55 02.4 13HG162 691 C~441A 2014 04 28.40114 16 08 55.86 -02 54 53.8 13HG162 691 C~441A 2014 04 28.42099 16 08 55.40 -02 54 47.3 13HG162 691 C~441A 2014 05 02.37440 16 07 21.96 -02 32 07.0 21.2V 13HG162 691 C~441A 2014 05 02.39206 16 07 21.54 -02 32 01.1 21.1V 13HG162 691 C~441A 2014 05 02.40972 16 07 21.10 -02 31 54.9 21.5V 13HG162 691 C~441A 2014 05 06.37556 16 05 43.73 -02 09 41.1 13HG162 691 C~441A 2014 05 06.39326 16 05 43.26 -02 09 35.6 13HG162 691 C~441A 2014 05 06.41095 16 05 42.81 -02 09 29.8 13HG162 691 C~441A 2014 05 17.258380 16 01 04.72 -01 11 59.8 21.4V 13HG162 W84 C~46rI 2014 05 17.263877 16 01 04.58 -01 11 58.1 21.3V 13HG162 W84 C~46rI 2014 05 18.187685 16 00 40.50 -01 07 20.1 13HG162 W84 C~46rI 2014 05 20.43626 15 59 41.75 -00 56 15.7 21.2r 13HG162 F51 C~46rI 2014 05 20.44849 15 59 41.42 -00 56 12.2 21.1r 13HG162 F51 C~46rI 2014 05 20.46058 15 59 41.12 -00 56 08.3 21.5r 13HG162 F51 C~46rI 2014 05 20.47252 15 59 40.77 -00 56 05.3 21.1r 13HG162 F51 C~46rI 2014 06 15.38393 15 49 02.87 +00 49 01.0 20.7i 13HG162 F51 C~46rI 2014 06 15.39658 15 49 02.55 +00 49 04.1 13HG162 F51 C~46rI 2014 06 15.43291 15 49 01.79 +00 49 10.5 13HG162 F51 C~46rI 2014 06 22.16166 15 46 42.82 +01 08 57.9 20.8V 13HG162 G96 C~441A 2014 06 22.16989 15 46 42.70 +01 08 59.3 21.0V 13HG162 G96 C~441A 2014 06 22.17810 15 46 42.49 +01 09 01.0 21.9V 13HG162 G96 C~441A 2014 06 22.18632 15 46 42.35 +01 09 02.8 21.9V 13HG162 G96 C~441A 2014 07 01.37141 15 43 59.802 +01 30 58.84 21.5w 13HG162 F51 C~441A 2014 07 01.38343 15 43 59.613 +01 31 00.38 21.5w 13HG162 F51 C~441A 2014 07 01.39543 15 43 59.418 +01 31 01.87 21.6w 13HG162 F51 C~441A 2014 07 01.40745 15 43 59.214 +01 31 03.27 21.6w 13HG162 F51 C~441A 2017 05 03.394022 17 41 11.45 +28 51 22.2 23.7g 13HG162 W84 C~46rI
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 -0.36 0.00 -0.08
2 0.0000 0.00 -0.24 0.00 -0.09
3 1.1069 0.00 -0.05 0.00 0.02
4 1.1069 0.00 -0.11 0.00 0.15
5 1.1423 0.00 0.01 0.00 0.02
6 1.1423 0.00 0.17 0.00 -0.08
7 1.1941 0.00 0.15 0.00 -0.02
8 1.1941 0.00 0.08 0.00 0.06
9 1.1942 0.00 0.05 0.00 0.09
10 1.2042 0.00 0.24 0.00 -0.14
11 1.2042 0.00 0.05 0.00 -0.09
12 1.2073 0.00 0.03 0.00 0.01
13 1.2074 0.00 0.17 0.00 -0.16
14 1.2296 0.00 0.30 0.00 0.01
15 1.2350 0.00 -0.04 0.00 0.03
16 1.2351 0.00 -0.02 0.00 -0.00
17 1.2761 0.00 -0.05 0.00 0.02
18 1.2761 0.00 0.01 0.00 0.04
19 1.3717 0.00 0.04 0.00 0.00
20 1.3826 0.00 0.01 0.00 -0.10
21 1.3827 0.00 0.13 0.00 0.12
22 1.4538 0.00 0.06 0.00 0.26
23 1.4538 0.00 0.08 0.00 0.29
24 2.1583 0.00 0.01 0.00 -0.12
25 2.1583 0.00 -0.08 0.00 -0.01
26 2.1633 0.00 -0.13 0.00 0.25
27 2.1633 0.00 -0.34 0.00 -0.59
28 2.1634 0.00 -0.71 0.00 -0.13
29 2.1742 0.00 -0.06 0.00 -1.91
30 2.1742 0.00 -0.71 0.00 0.55
31 2.1743 0.00 -0.58 0.00 0.15
32 2.1851 0.00 -0.30 0.00 0.17
33 2.1852 0.00 -0.08 0.00 0.05
34 2.1852 0.00 -0.16 0.00 0.24
35 2.1961 0.00 -0.11 0.00 0.32
36 2.1961 0.00 -0.42 0.00 -0.05
37 2.1962 0.00 -0.42 0.00 -0.13
38 2.2259 0.00 0.07 0.00 -0.08
39 2.2259 0.00 0.16 0.00 -0.04
40 2.2284 0.00 0.09 0.00 -0.11
41 2.2346 0.00 0.27 0.00 0.02
42 2.2346 0.00 0.21 0.00 -0.05
43 2.2346 0.00 0.54 0.00 0.32
44 2.2347 0.00 0.06 0.00 -0.17
45 2.3056 0.00 0.16 0.00 0.08
46 2.3056 0.00 -0.41 0.00 0.76
47 2.3057 0.00 0.31 0.00 0.23
48 2.3242 0.00 -0.06 0.00 -0.39
49 2.3242 0.00 0.60 0.00 -0.33
50 2.3242 0.00 -0.10 0.00 0.04
51 2.3242 0.00 0.26 0.00 0.50
52 2.3494 0.00 0.18 0.00 -0.04
53 2.3494 0.00 0.28 0.00 0.00
54 2.3494 0.00 0.27 0.00 0.00
55 2.3495 0.00 0.14 0.00 -0.09
56 5.1886 0.00 0.53 0.00 0.17
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.
13HG162 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 33.907 33.906 33.908 ecceobj 0.836 0.836 0.836 incobj 68.295 68.295 68.295 qmin 4.549 4.664 4.596 qmax 74.732 99.273 85.488 amean 34.061 39.005 32.752 amin 29.235 28.669 20.526 amax 39.991 51.985 45.636 emean 0.850 0.866 0.812 emin 0.813 0.807 0.718 emax 0.881 0.910 0.879 imean 68.850 68.639 70.154 imin 67.955 67.023 68.188 imax 69.866 69.965 72.281 excite_mean 1.262 1.271 1.243 fracstop 0.010 0.014 0.062 cjmean 1.300 1.203 1.366 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 295.1 292.9 218.7 kozaiamp 15.6 18.5 106.7