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: 15RB279
# Created Tue Jan 21 02:10:40 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 35 observations of 35
# Arc: 9.36y
# First observation: 2015/06/23
# Last observation: 2024/11/01
# Chi-squared of fit: 6.47 DOF: 64 RMS: 0.08
# Min/Max residuals: -0.19 0.33
# Exact a, adot, b, bdot, g, gdot:
2.137652E-05 3.997247E-02 -7.301720E-06 -1.440702E-02 2.970799E-02 1.808831E-04
# Covariance matrix:
1.5546E-13 -4.0884E-14 -1.1311E-14 1.5170E-14 8.0646E-14 -9.5523E-14
-4.0884E-14 1.2189E-13 2.9948E-14 -4.5029E-14 5.8309E-14 3.1435E-13
-1.1311E-14 2.9948E-14 6.3784E-14 -2.1596E-14 1.1586E-14 8.1612E-14
1.5170E-14 -4.5029E-14 -2.1596E-14 2.3553E-14 -1.9358E-14 -1.2248E-13
8.0646E-14 5.8309E-14 1.1586E-14 -1.9358E-14 1.3088E-13 1.4609E-13
-9.5523E-14 3.1435E-13 8.1612E-14 -1.2248E-13 1.4609E-13 8.5375E-13
# lat0 lon0 xBary yBary zBary JD0
1.349778 10.372354 1.004965 -0.003474 0.151510 2457197.094148
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 359.64520 +/- 0.000
Argument of Peri: 179.37550 +/- 0.003
Long of Asc Node: 192.41154 +/- 0.000
Inclination: 19.85669 +/- 0.000
Eccentricity: 0.73239433 +/- 0.0001
Semi-Major Axis: 125.17165783 +/- 0.0278
Time of Perihelion: 2457700.6317 +/- 170.1
Perihelion: 33.49664530 +/- 0.0103
Aphelion: 216.84667035 +/- 0.0486
Period (y) 1400.4487 +/- 0.47
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 33.13004581 +/- 0.0004
Ecliptic Y 5.04352088 +/- 0.0001
Ecliptic Z 0.79272446 +/- 0.0000
Ecliptic XDOT -0.00061856 +/- 0.0000
Ecliptic YDOT 0.00362601 +/- 0.0000
Ecliptic ZDOT -0.00132691 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.52113829 +/- 0.0004
Geocenter to KBO 33.66099136 +/- 0.0004
# Hcoef: 8.92
The following table shows the complete astrometric record for 15RB279. 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 (15RB279) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.59337 00 36 00.257 +05 20 53.86 24.1r 15RB279 568 C~2lVT 2015 07 14.54596 00 36 30.026 +05 21 52.45 24.4r 15RB279 568 C~2lVT 2015 07 19.51085 00 36 30.210 +05 21 21.85 24.1r 15RB279 568 C~2lVT 2015 08 11.49932 00 35 58.240 +05 15 23.41 24.2r 15RB279 568 C~2lVT 2015 08 11.55875 00 35 58.082 +05 15 22.03 24.1r 15RB279 568 C~2lVT 2015 09 08.40498 00 34 18.671 +05 01 16.08 24.2r 15RB279 568 C~2lVT 2015 09 08.50910 00 34 18.202 +05 01 12.25 24.0r 15RB279 568 C~2lVT 2015 09 08.55273 00 34 17.998 +05 01 10.66 24.3r 15RB279 568 C~2lVT 2015 09 09.52831 00 34 13.626 +05 00 34.70 24.2w 15RB279 568 C~2lVT 2015 09 10.46916 00 34 09.371 +04 59 59.76 24.3w 15RB279 568 C~2lVT 2015 10 03.38583 00 32 17.392 +04 44 43.29 24.5w 15RB279 568 C~2lVT 2015 10 07.35453 00 31 57.409 +04 41 58.36 24.0r 15RB279 568 C~2lVT 2015 10 07.40769 00 31 57.134 +04 41 56.32 24.1r 15RB279 568 C~2lVT 2015 11 07.24974 00 29 37.408 +04 21 53.34 24.4w 15RB279 568 C~2lVT 2015 11 07.30253 00 29 37.205 +04 21 51.46 24.6w 15RB279 568 C~2lVT 2015 12 07.32615 00 28 24.345 +04 08 42.34 24.6w 15RB279 568 C~2lVT 2016 01 01.25515 00 28 35.573 +04 05 24.05 24.6w 15RB279 568 C~2lVT 2016 09 05.53675 00 44 31.772 +05 10 59.82 24.5w 15RB279 568 C~2lVT 2016 09 05.54080 00 44 31.757 +05 10 59.75 24.3w 15RB279 568 C~2lVT 2016 09 07.47613 00 44 23.495 +05 09 50.38 24.4w 15RB279 568 C~2lVT 2016 09 07.48017 00 44 23.481 +05 09 50.25 24.5w 15RB279 568 C~2lVT 2016 09 07.52244 00 44 23.298 +05 09 48.69 24.1w 15RB279 568 C~2lVT 2016 09 26.55282 00 42 53.487 +04 57 29.21 24.0w 15RB279 568 C~2lVT 2016 11 04.28299 00 39 47.903 +04 31 50.93 24.3w 15RB279 568 C~2lVT 2016 11 04.34222 00 39 47.662 +04 31 48.86 24.3w 15RB279 568 C~2lVT 2016 12 29.26158 00 38 18.914 +04 13 52.93 24.3w 15RB279 568 C~2lVT 2017 01 03.23211 00 38 26.839 +04 13 58.31 24.5w 15RB279 568 C~2lVT 2017 01 27.24379 00 39 43.597 +04 18 32.66 24.5w 15RB279 568 C~2lVT 2017 01 28.23958 00 39 48.080 +04 18 52.66 24.7w 15RB279 568 C~2lVT 2017 09 15.43553 00 53 53.530 +05 12 57.20 24.3w 15RB279 568 C~2lVT 2017 09 22.50070 00 53 20.142 +05 08 21.30 24.1w 15RB279 568 C~2lVT 2017 12 23.29251 00 48 03.225 +04 22 14.64 24.4w 15RB279 568 C~2lVT 2024 11 01.256180 01 59 32.442 +05 22 54.28 24.5G 15RB279 G37 C~8SWz 2024 11 01.303120 01 59 32.209 +05 22 53.14 15RB279 G37 C~8SWz 2024 11 01.348740 01 59 31.972 +05 22 51.07 15RB279 G37 C~8SWz
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 -0.08
2 0.0574 0.00 -0.03 0.00 -0.06
3 0.0710 0.00 0.09 0.00 0.06
4 0.1339 0.00 -0.04 0.00 0.14
5 0.1341 0.00 -0.10 0.00 0.12
6 0.2103 0.00 -0.03 0.00 0.01
7 0.2106 0.00 0.05 0.00 -0.01
8 0.2107 0.00 -0.02 0.00 -0.00
9 0.2134 0.00 -0.00 0.00 -0.03
10 0.2160 0.00 0.01 0.00 -0.02
11 0.2787 0.00 0.02 0.00 -0.06
12 0.2896 0.00 0.11 0.00 -0.05
13 0.2897 0.00 0.08 0.00 0.12
14 0.3741 0.00 0.05 0.00 0.01
15 0.3743 0.00 0.04 0.00 -0.06
16 0.4565 0.00 -0.12 0.00 0.05
17 0.5247 0.00 0.05 0.00 0.04
18 1.2045 0.00 -0.03 0.00 -0.05
19 1.2045 0.00 0.01 0.00 0.02
20 1.2098 0.00 -0.05 0.00 -0.01
21 1.2098 0.00 0.01 0.00 0.01
22 1.2099 0.00 0.07 0.00 -0.02
23 1.2620 0.00 -0.06 0.00 -0.02
24 1.3681 0.00 -0.01 0.00 0.03
25 1.3682 0.00 0.08 0.00 0.05
26 1.5186 0.00 0.00 0.00 -0.05
27 1.5322 0.00 0.03 0.00 -0.02
28 1.5979 0.00 -0.03 0.00 -0.13
29 1.6007 0.00 -0.09 0.00 0.09
30 2.2309 0.00 0.08 0.00 0.06
31 2.2503 0.00 -0.02 0.00 0.02
32 2.5016 0.00 0.06 0.00 -0.05
33 9.3598 0.00 -0.11 0.00 -0.13
34 9.3599 0.00 0.05 0.00 0.33
35 9.3600 0.00 0.03 0.00 -0.19
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.
15RB279 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 130.030 130.027 130.032 ecceobj 0.742 0.742 0.742 incobj 19.791 19.791 19.791 qmin 31.007 31.512 31.008 qmax 237.965 236.972 240.292 amean 126.789 124.419 128.030 amin 119.801 119.461 120.172 amax 135.225 135.252 136.433 emean 0.744 0.736 0.743 emin 0.718 0.721 0.717 emax 0.761 0.752 0.763 imean 17.392 18.354 18.433 imin 16.335 17.684 16.405 imax 20.162 20.092 20.182 excite_mean 0.802 0.801 0.808 fracstop 1.000 1.000 1.000 cjmean 2.854 2.853 2.853 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 263.3 253.0 260.4 kozaiamp 74.1 62.9 180.0