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: 15RH281
# Created Sun Nov 24 02:10:26 2024
# Orbit generated from Bernstein formalism
# Fitting 31 observations of 31
# Arc: 2.19y
# First observation: 2015/07/14
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000051 0.020505 -0.000002 0.001577 0.022073 0.000000
# Chi-squared of fit: 11.72 DOF: 56 RMS: 0.11
# Min/Max residuals: -0.24 0.25
# Exact a, adot, b, bdot, g, gdot:
1.460063E-05 2.012781E-02 4.925982E-07 1.548798E-03 2.182053E-02 -3.067091E-03
# Covariance matrix:
1.7058E-13 4.0904E-14 -4.7792E-15 1.0934E-14 1.6477E-13 3.2656E-12
4.0904E-14 3.4676E-13 -1.0837E-14 3.2649E-14 2.9522E-13 9.8180E-12
-4.7792E-15 -1.0837E-14 9.3245E-14 -7.0713E-14 -1.2988E-14 -4.4100E-13
1.0934E-14 3.2649E-14 -7.0713E-14 1.0775E-13 3.5249E-14 1.4729E-12
1.6477E-13 2.9522E-13 -1.2988E-14 3.5249E-14 3.9257E-13 1.0575E-11
3.2656E-12 9.8180E-12 -4.4100E-13 1.4729E-12 1.0575E-11 4.4385E-10
# lat0 lon0 xBary yBary zBary JD0
1.831101 11.545106 1.001364 0.005881 -0.180789 2457218.063999
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 285.40356 +/- 0.106
Argument of Peri: 116.78963 +/- 0.026
Long of Asc Node: 348.14092 +/- 0.004
Inclination: 4.82552 +/- 0.001
Eccentricity: 0.17404407 +/- 0.0010
Semi-Major Axis: 46.79738374 +/- 0.0176
Time of Perihelion: 2481440.1066 +/- 31.6
Perihelion: 38.65257672 +/- 0.0507
Aphelion: 54.94219076 +/- 0.0527
Period (y) 320.1405 +/- 0.18
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.25229437 +/- 0.0013
Ecliptic Y 8.22285144 +/- 0.0003
Ecliptic Z 1.46444347 +/- 0.0000
Ecliptic XDOT -0.00089067 +/- 0.0000
Ecliptic YDOT 0.00238986 +/- 0.0000
Ecliptic ZDOT 0.00018200 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.01662772 +/- 0.0013
Geocenter to KBO 45.82840648 +/- 0.0013
# Hcoef: 8.26
The following table shows the complete astrometric record for 15RH281. 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 (15RH281) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.56321 00 39 34.783 +06 15 04.13 24.6r 15RH281 568 C~2nvt 2015 07 19.54532 00 39 32.731 +06 15 08.61 26.2r 15RH281 568 C~2nvt 2015 08 13.49630 00 38 54.647 +06 12 29.42 24.8r 15RH281 568 C~2nvt 2015 08 13.54972 00 38 54.498 +06 12 28.90 24.2r 15RH281 568 C~2nvt 2015 08 13.62147 00 38 54.317 +06 12 27.92 22.5r 15RH281 568 C~2nvt 2015 08 20.43431 00 38 36.545 +06 10 54.83 25.1r 15RH281 568 C~2nvt 2015 08 20.48358 00 38 36.391 +06 10 54.26 25.1r 15RH281 568 C~2nvt 2015 09 07.58083 00 37 37.062 +06 05 22.70 25.1w 15RH281 568 C~2nvt 2015 09 09.40852 00 37 30.276 +06 04 43.37 25.0r 15RH281 568 C~2nvt 2015 09 09.44963 00 37 30.128 +06 04 42.53 25.1r 15RH281 568 C~2nvt 2015 09 09.49055 00 37 29.974 +06 04 41.55 25.1r 15RH281 568 C~2nvt 2015 09 10.51481 00 37 26.118 +06 04 19.22 25.2w 15RH281 568 C~2nvt 2015 09 18.47788 00 36 55.047 +06 01 16.18 24.5w 15RH281 568 C~2nvt 2015 10 08.36567 00 35 32.974 +05 52 57.17 25.1w 15RH281 568 C~2nvt 2015 10 08.41827 00 35 32.763 +05 52 55.61 24.9w 15RH281 568 C~2nvt 2015 10 09.33525 00 35 28.957 +05 52 32.16 25.5w 15RH281 568 C~2nvt 2015 11 10.46169 00 33 28.555 +05 39 40.57 24.3w 15RH281 568 C~2nvt 2015 12 08.25986 00 32 26.939 +05 32 32.00 25.3w 15RH281 568 C~2nvt 2016 01 01.32225 00 32 21.523 +05 31 15.01 25.1w 15RH281 568 C~2nvt 2016 09 05.50664 00 41 53.576 +06 38 23.78 25.6w 15RH281 568 C~2nvt 2016 09 06.46082 00 41 50.121 +06 38 03.77 24.8w 15RH281 568 C~2nvt 2016 09 06.50211 00 41 49.987 +06 38 03.12 24.3w 15RH281 568 C~2nvt 2016 09 26.45968 00 40 31.307 +06 30 21.09 25.4w 15RH281 568 C~2nvt 2016 11 04.27703 00 37 56.493 +06 14 11.25 25.3w 15RH281 568 C~2nvt 2016 11 04.33644 00 37 56.277 +06 14 09.87 25.1w 15RH281 568 C~2nvt 2016 12 29.24794 00 36 25.459 +06 03 09.92 25.7w 15RH281 568 C~2nvt 2016 12 29.27436 00 36 25.461 +06 03 10.05 25.4w 15RH281 568 C~2nvt 2017 01 03.21812 00 36 28.979 +06 03 22.87 25.2w 15RH281 568 C~2nvt 2017 01 03.24627 00 36 28.997 +06 03 22.46 25.3w 15RH281 568 C~2nvt 2017 09 15.43089 00 45 31.206 +07 07 34.26 25.5w 15RH281 568 C~2nvt 2017 09 22.49605 00 45 02.865 +07 04 48.57 25.2w 15RH281 568 C~2nvt
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 -0.00 0.00 0.13
2 0.0136 -26.39 0.03 16.12 0.01
3 0.0820 -611.21 0.23 92.42 -0.21
4 0.0821 -613.46 0.04 92.81 0.01
5 0.0823 -616.33 -0.04 92.97 -0.07
6 0.1009 -896.63 0.03 111.34 -0.24
7 0.1011 -898.96 -0.07 111.72 -0.02
8 0.1506 -1842.97 -0.02 154.27 0.08
9 0.1556 -1951.50 -0.21 157.88 0.12
10 0.1557 -1953.86 -0.07 157.97 0.11
11 0.1559 -1956.36 -0.07 157.97 0.01
12 0.1587 -2018.03 0.02 160.04 0.09
13 0.1805 -2516.21 -0.06 173.93 0.02
14 0.2349 -3838.56 -0.03 196.99 0.12
15 0.2351 -3842.07 0.05 196.80 -0.14
16 0.2376 -3903.53 0.05 197.61 0.07
17 0.3255 -5860.18 0.22 196.85 -0.12
18 0.4016 -6875.45 -0.08 166.24 0.01
19 0.4675 -6980.27 -0.03 127.44 -0.12
20 1.1470 2451.71 0.00 477.92 0.13
21 1.1496 2396.50 -0.16 479.64 -0.16
22 1.1497 2394.40 0.19 479.82 -0.09
23 1.2044 1134.55 -0.00 513.46 0.06
24 1.3106 -1368.82 0.04 526.50 0.09
25 1.3108 -1372.32 -0.07 526.50 0.09
26 1.4611 -2877.32 0.03 452.12 -0.02
27 1.4612 -2877.24 -0.06 452.23 0.13
28 1.4748 -2823.95 0.16 443.37 0.25
29 1.4748 -2823.86 -0.13 442.88 -0.19
30 2.1735 6120.44 -0.04 825.41 -0.12
31 2.1928 5667.00 0.05 837.04 -0.04
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.
15RH281 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.285 47.332 47.240 ecceobj 0.173 0.176 0.171 incobj 4.802 4.802 4.802 qmin 37.873 37.796 37.992 qmax 56.571 56.708 56.340 amean 46.980 47.023 46.938 amin 46.560 46.614 46.527 amax 47.482 47.531 47.436 emean 0.176 0.179 0.173 emin 0.163 0.165 0.160 emax 0.192 0.194 0.189 imean 5.500 5.511 5.493 imin 4.884 4.863 4.905 imax 5.996 6.063 5.987 excite_mean 0.201 0.204 0.198 fracstop 1.000 1.000 1.000 cjmean 3.088 3.087 3.089 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 180.1 181.2 179.4 kozaiamp 179.9 179.9 180.0