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: 13UP17 # Created Thu Apr 25 01:15:24 2024 # Orbit generated from Bernstein formalism # Fitting 34 observations of 34 # Arc: 2.35y # First observation: 2013/08/02 # Last observation: 2015/12/07 Preliminary a, adot, b, bdot, g, gdot: -0.000154 0.023815 -0.000001 0.000078 0.024022 0.000000 # Chi-squared of fit: 9.61 DOF: 62 RMS: 0.09 # Min/Max residuals: -0.30 0.31 # Exact a, adot, b, bdot, g, gdot: 1.576068E-05 2.366530E-02 -6.182444E-08 7.775657E-05 2.398862E-02 1.249677E-03 # Covariance matrix: 1.6226E-13 -1.5443E-14 5.3650E-16 -7.0506E-17 1.1222E-13 2.3753E-12 -1.5443E-14 2.6245E-13 6.2875E-16 3.3160E-16 1.6797E-13 7.1065E-12 5.3650E-16 6.2875E-16 1.0165E-13 -8.0718E-14 1.0228E-15 2.3875E-14 -7.0506E-17 3.3160E-16 -8.0718E-14 1.1078E-13 1.0543E-16 2.0013E-14 1.1222E-13 1.6797E-13 1.0228E-15 1.0543E-16 2.3504E-13 7.0310E-12 2.3753E-12 7.1065E-12 2.3875E-14 2.0013E-14 7.0310E-12 3.4730E-10 # lat0 lon0 xBary yBary zBary JD0 -0.940279 16.165145 0.929336 -0.006741 -0.412451 2456507.020968 # Heliocentric elements and errors Epoch: 2456500.5000 = 2013/07/27 Mean Anomaly: 32.74250 +/- 0.651 Argument of Peri: 244.16753 +/- 0.741 Long of Asc Node: 94.67897 +/- 0.048 Inclination: 0.94579 +/- 0.000 Eccentricity: 0.05031262 +/- 0.0005 Semi-Major Axis: 43.93372726 +/- 0.0034 Time of Perihelion: 2446826.5270 +/- 192.4 Perihelion: 41.72330641 +/- 0.0222 Aphelion: 46.14414811 +/- 0.0222 Period (y) 291.2093 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.68759432 +/- 0.0008 Ecliptic Y 10.82961967 +/- 0.0002 Ecliptic Z -0.68404381 +/- 0.0000 Ecliptic XDOT -0.00062108 +/- 0.0000 Ecliptic YDOT 0.00263308 +/- 0.0000 Ecliptic ZDOT 0.00000667 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.10972465 +/- 0.0008 Geocenter to KBO 41.68643764 +/- 0.0008 # Hcoef: 7.86
The following table shows the complete astrometric record for 13UP17. 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 (13UP17) followed by the observatory code and reference code for the source of the astrometry.
2013 08 02.52019 01 01 01.459 +05 29 24.18 24.4r 13UP17 568 C~2NKa 2013 08 02.56292 01 01 01.399 +05 29 23.80 23.7r 13UP17 568 C~2NKa 2013 08 30.43573 00 59 56.090 +05 22 06.80 24.3r 13UP17 568 C~2NKa 2013 08 31.43992 00 59 52.753 +05 21 45.16 24.7r 13UP17 568 C~2NKa 2013 08 31.48289 00 59 52.611 +05 21 44.34 24.1r 13UP17 568 C~2NKa 2013 09 04.41982 00 59 39.027 +05 20 16.46 23.2r 13UP17 568 C~2NKa 2013 09 04.46259 00 59 38.877 +05 20 15.49 23.7r 13UP17 568 C~2NKa 2013 10 06.40113 00 57 26.087 +05 06 15.52 24.4r 13UP17 568 C~2NKa 2013 10 06.48380 00 57 25.706 +05 06 13.21 24.3r 13UP17 568 C~2NKa 2013 10 31.24273 00 55 37.534 +04 55 06.00 24.8r 13UP17 568 C~2NKa 2013 10 31.28571 00 55 37.369 +04 55 04.99 23.9r 13UP17 568 C~2NKa 2013 10 31.32850 00 55 37.192 +04 55 03.94 24.3r 13UP17 568 C~2NKa 2013 11 01.26903 00 55 33.392 +04 54 40.61 23.9r 13UP17 568 C~2NKa 2013 11 01.39303 00 55 32.882 +04 54 37.63 23.8r 13UP17 568 C~2NKa 2013 11 29.30934 00 54 00.829 +04 45 29.21 23.8r 13UP17 568 C~2NKa 2013 12 04.25882 00 53 49.920 +04 44 27.57 24.2r 13UP17 568 C~2NKa 2013 12 04.31091 00 53 49.827 +04 44 26.82 24.8r 13UP17 568 C~2NKa 2014 06 27.59003 01 05 49.839 +06 00 15.00 24.2r 13UP17 568 C~2NKa 2014 06 28.59510 01 05 51.710 +06 00 25.22 24.1r 13UP17 568 C~2NKa 2014 07 24.54140 01 06 10.172 +06 01 42.82 24.2r 13UP17 568 C~2NKa 2014 07 27.57207 01 06 08.542 +06 01 28.72 23.8r 13UP17 568 C~2NKa 2014 08 22.57202 01 05 24.060 +05 56 22.83 24.2r 13UP17 568 C~2NKa 2014 08 22.59325 01 05 24.007 +05 56 22.69 24.1r 13UP17 568 C~2NKa 2014 08 28.43479 01 05 07.149 +05 54 32.91 23.9r 13UP17 568 C~2NKa 2014 10 23.35625 01 01 16.830 +05 30 31.88 24.3r 13UP17 568 C~2NKa 2014 10 23.37959 01 01 16.721 +05 30 31.44 24.3r 13UP17 568 C~2NKa 2014 10 27.39496 01 00 59.387 +05 28 45.76 23.8r 13UP17 568 C~2NKa 2014 11 24.24776 00 59 17.351 +05 18 35.90 23.7r 13UP17 568 C~2NKa 2014 11 25.24396 00 59 14.506 +05 18 19.56 23.9r 13UP17 568 C~2NKa 2014 12 17.27453 00 58 31.230 +05 14 19.67 23.8r 13UP17 568 C~2NKa 2015 01 17.27935 00 58 42.240 +05 16 15.48 24.1r 13UP17 568 C~2NKa 2015 01 17.28768 00 58 42.256 +05 16 15.55 24.1r 13UP17 568 C~2NKa 2015 08 20.52313 01 10 32.834 +06 28 19.88 23.8r 13UP17 568 C~2NKa 2015 12 07.39423 01 03 47.564 +05 47 05.42 24.2w 13UP17 568 C~2NKa
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 -0.03 0.00 0.02
2 0.0001 -0.97 -0.05 -0.01 0.05
3 0.0764 -1069.26 -0.04 -28.99 0.04
4 0.0792 -1123.59 -0.19 -29.82 0.03
5 0.0793 -1125.86 -0.08 -29.76 0.11
6 0.0901 -1346.94 0.09 -32.93 -0.00
7 0.0902 -1349.38 0.17 -32.97 -0.03
8 0.1776 -3503.76 0.03 -45.11 -0.00
9 0.1779 -3509.91 -0.00 -45.05 0.02
10 0.2456 -5259.36 -0.30 -37.64 0.08
11 0.2458 -5262.03 -0.10 -37.62 0.06
12 0.2459 -5264.88 -0.08 -37.57 0.06
13 0.2485 -5326.31 0.01 -37.18 -0.10
14 0.2488 -5334.50 0.04 -36.99 -0.05
15 0.3252 -6816.73 0.01 -11.69 -0.17
16 0.3388 -6991.15 0.15 -5.54 0.06
17 0.3389 -6992.72 0.31 -5.69 -0.18
18 0.9009 4685.42 -0.01 62.02 -0.03
19 0.9037 4715.13 0.03 60.81 0.02
20 0.9747 4999.46 0.07 27.38 -0.05
21 0.9830 4971.59 -0.04 23.63 -0.02
22 1.0542 4241.10 0.05 -5.66 -0.15
23 1.0543 4240.32 0.22 -5.49 0.03
24 1.0703 3965.83 0.02 -10.83 0.07
25 1.2234 237.91 -0.04 -25.56 -0.12
26 1.2234 236.24 -0.05 -25.34 0.08
27 1.2344 -43.31 -0.06 -23.60 -0.02
28 1.3107 -1684.47 0.07 -1.32 -0.01
29 1.3134 -1729.98 -0.02 -0.07 0.17
30 1.3737 -2418.99 -0.07 27.12 0.06
31 1.4586 -2222.61 -0.02 70.74 0.02
32 1.4586 -2222.37 -0.01 70.72 -0.02
33 2.0479 9234.22 -0.05 12.79 -0.04
34 2.3460 2697.07 -0.03 29.88 0.03
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.
13UP17 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.176 44.188 44.164 ecceobj 0.056 0.057 0.055 incobj 0.946 0.946 0.946 qmin 40.829 40.793 40.880 qmax 47.149 47.216 47.144 amean 43.901 43.913 43.889 amin 43.563 43.569 43.548 amax 44.256 44.265 44.261 emean 0.050 0.051 0.049 emin 0.034 0.035 0.032 emax 0.066 0.067 0.065 imean 1.027 1.029 1.025 imin 0.241 0.245 0.238 imax 1.583 1.587 1.580 excite_mean 0.053 0.054 0.052 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 191.4 191.1 191.7 kozaiamp 180.0 179.9 179.9