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: 15RC278
# Created Wed Dec 25 02:10:23 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 37 observations of 37
# Arc: 6.28y
# First observation: 2015/06/23
# Last observation: 2021/10/03
# Chi-squared of fit: 5.89 DOF: 68 RMS: 0.07
# Min/Max residuals: -0.19 0.23
# Exact a, adot, b, bdot, g, gdot:
1.497762E-05 2.222969E-02 -1.074914E-06 -1.720301E-03 2.315966E-02 -1.334315E-03
# Covariance matrix:
1.9740E-13 -2.7129E-14 -2.8870E-15 1.3088E-15 1.2228E-13 -1.0897E-13
-2.7129E-14 1.4162E-13 5.2056E-15 -1.1245E-14 7.5370E-14 1.0708E-12
-2.8870E-15 5.2056E-15 5.9858E-14 -1.7669E-14 7.4448E-16 4.4034E-14
1.3088E-15 -1.1245E-14 -1.7669E-14 1.4660E-14 -6.2158E-15 -9.4187E-14
1.2228E-13 7.5370E-14 7.4448E-16 -6.2158E-15 1.6421E-13 6.0652E-13
-1.0897E-13 1.0708E-12 4.4034E-14 -9.4187E-14 6.0652E-13 8.9656E-12
# lat0 lon0 xBary yBary zBary JD0
1.225927 7.230870 1.011715 -0.001976 0.096731 2457197.064548
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 282.20827 +/- 0.025
Argument of Peri: 251.91548 +/- 0.033
Long of Asc Node: 201.41945 +/- 0.001
Inclination: 4.57825 +/- 0.000
Eccentricity: 0.08512108 +/- 0.0001
Semi-Major Axis: 43.56617153 +/- 0.0028
Time of Perihelion: 2479892.7156 +/- 10.9
Perihelion: 39.85777187 +/- 0.0064
Aphelion: 47.27457118 +/- 0.0066
Period (y) 287.5625 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 42.85318962 +/- 0.0008
Ecliptic Y 4.41818253 +/- 0.0001
Ecliptic Z 0.92380900 +/- 0.0000
Ecliptic XDOT -0.00048536 +/- 0.0000
Ecliptic YDOT 0.00258147 +/- 0.0000
Ecliptic ZDOT -0.00020663 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.09030501 +/- 0.0007
Geocenter to KBO 43.17857786 +/- 0.0008
# Hcoef: 7.68
The following table shows the complete astrometric record for 15RC278. 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 (15RC278) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.56377 00 24 37.016 +03 59 45.27 23.6r 15RC278 568 C~2lVP 2015 07 19.56270 00 24 41.497 +04 00 35.18 24.0r 15RC278 568 C~2lVP 2015 08 11.47114 00 24 00.728 +03 56 25.58 24.0r 15RC278 568 C~2lVP 2015 08 11.51611 00 24 00.614 +03 56 24.90 23.8r 15RC278 568 C~2lVP 2015 09 08.38042 00 22 26.402 +03 46 17.50 24.0r 15RC278 568 C~2lVP 2015 09 08.48459 00 22 25.978 +03 46 14.81 24.0r 15RC278 568 C~2lVP 2015 09 08.52681 00 22 25.796 +03 46 13.62 23.8r 15RC278 568 C~2lVP 2015 09 09.50371 00 22 21.874 +03 45 47.91 24.1w 15RC278 568 C~2lVP 2015 09 10.44466 00 22 18.062 +03 45 22.90 24.1w 15RC278 568 C~2lVP 2015 09 16.42677 00 21 53.250 +03 42 39.34 24.3w 15RC278 568 C~2lVP 2015 10 03.34014 00 20 40.296 +03 34 32.17 24.0r 15RC278 568 C~2lVP 2015 10 03.35351 00 20 40.239 +03 34 31.84 24.1w 15RC278 568 C~2lVP 2015 10 07.32360 00 20 23.087 +03 32 35.90 23.9r 15RC278 568 C~2lVP 2015 10 07.37570 00 20 22.861 +03 32 34.52 24.0r 15RC278 568 C~2lVP 2015 11 07.21826 00 18 24.126 +03 18 49.30 24.2w 15RC278 568 C~2lVP 2015 11 07.27072 00 18 23.959 +03 18 48.10 24.4w 15RC278 568 C~2lVP 2015 11 08.31542 00 18 20.683 +03 18 24.60 24.2w 15RC278 568 C~2lVP 2015 11 10.34786 00 18 14.496 +03 17 39.68 24.3w 15RC278 568 C~2lVP 2015 12 07.29452 00 17 20.360 +03 10 37.82 24.4w 15RC278 568 C~2lVP 2016 01 01.22390 00 17 24.294 +03 09 50.61 24.2w 15RC278 568 C~2lVP 2016 09 05.51068 00 27 32.393 +04 12 33.50 24.0w 15RC278 568 C~2lVP 2016 09 07.45091 00 27 24.775 +04 11 43.73 24.2w 15RC278 568 C~2lVP 2016 09 07.49637 00 27 24.590 +04 11 42.61 24.2w 15RC278 568 C~2lVP 2016 09 26.52564 00 26 04.566 +04 02 54.25 24.1w 15RC278 568 C~2lVP 2016 10 26.32563 00 23 59.511 +03 48 45.03 24.2r 15RC278 568 C~2lVP 2016 10 26.39142 00 23 59.271 +03 48 43.34 24.0r 15RC278 568 C~2lVP 2016 10 30.34056 00 23 44.591 +03 47 00.97 24.5w 15RC278 568 C~2lVP 2016 11 03.29270 00 23 30.656 +03 45 22.87 24.2w 15RC278 568 C~2lVP 2016 11 03.34512 00 23 30.476 +03 45 21.47 24.3w 15RC278 568 C~2lVP 2016 12 24.26183 00 22 08.241 +03 34 20.47 24.3w 15RC278 568 C~2lVP 2017 01 26.21860 00 23 12.286 +03 39 44.97 24.2w 15RC278 568 C~2lVP 2017 09 15.44482 00 31 52.408 +04 33 37.77 23.9w 15RC278 568 C~2lVP 2017 09 22.50999 00 31 22.398 +04 30 20.25 24.1w 15RC278 568 C~2lVP 2017 12 23.30656 00 27 00.145 +03 59 14.45 24.1w 15RC278 568 C~2lVP 2021 10 03.289150 00 50 50.591 +06 06 34.38 24.5G 15RC278 G37 C~55Wp 2021 10 03.325930 00 50 50.425 +06 06 33.23 15RC278 G37 C~55Wp 2021 10 03.362560 00 50 50.268 +06 06 32.47 15RC278 G37 C~55Wp
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 0.05 0.00 -0.00
2 0.0712 0.00 0.04 0.00 0.02
3 0.1339 0.00 -0.11 0.00 -0.02
4 0.1340 0.00 -0.02 0.00 0.04
5 0.2103 0.00 0.01 0.00 -0.00
6 0.2106 0.00 0.03 0.00 0.04
7 0.2107 0.00 -0.11 0.00 -0.04
8 0.2134 0.00 0.01 0.00 0.02
9 0.2160 0.00 -0.02 0.00 0.04
10 0.2323 0.00 0.03 0.00 -0.04
11 0.2786 0.00 0.08 0.00 -0.10
12 0.2787 0.00 0.11 0.00 -0.04
13 0.2896 0.00 0.06 0.00 -0.03
14 0.2897 0.00 0.09 0.00 0.11
15 0.3741 0.00 -0.03 0.00 -0.02
16 0.3743 0.00 0.02 0.00 -0.03
17 0.3771 0.00 0.03 0.00 0.07
18 0.3827 0.00 -0.05 0.00 -0.07
19 0.4565 0.00 -0.05 0.00 -0.02
20 0.5247 0.00 -0.03 0.00 0.01
21 1.2045 0.00 -0.00 0.00 0.04
22 1.2098 0.00 0.06 0.00 0.06
23 1.2099 0.00 0.04 0.00 0.12
24 1.2620 0.00 -0.09 0.00 -0.04
25 1.3436 0.00 -0.19 0.00 -0.04
26 1.3438 0.00 0.04 0.00 0.01
27 1.3546 0.00 -0.04 0.00 0.02
28 1.3654 0.00 0.06 0.00 0.01
29 1.3656 0.00 0.12 0.00 -0.12
30 1.5050 0.00 0.02 0.00 -0.04
31 1.5952 0.00 0.23 0.00 0.04
32 2.2310 0.00 -0.05 0.00 0.01
33 2.2504 0.00 -0.04 0.00 0.14
34 2.5017 0.00 -0.06 0.00 0.00
35 6.2799 0.00 -0.03 0.00 -0.06
36 6.2800 0.00 -0.04 0.00 -0.15
37 6.2801 0.00 0.07 0.00 0.15
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.
15RC278 quality flag:2 Type: SCATNEAR CLASSICAL CLASSICAL axisobj 43.994 43.994 43.994 ecceobj 0.086 0.086 0.086 incobj 4.556 4.556 4.556 qmin 38.402 38.451 38.428 qmax 49.534 49.414 49.485 amean 43.746 43.720 43.721 amin 43.316 43.314 43.313 amax 44.194 44.183 44.186 emean 0.092 0.089 0.091 emin 0.067 0.060 0.062 emax 0.121 0.119 0.121 imean 5.572 5.600 5.588 imin 4.753 4.787 4.760 imax 6.482 6.509 6.495 excite_mean 0.134 0.133 0.134 fracstop 1.000 1.000 1.000 cjmean 3.077 3.077 3.077 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 184.5 184.2 184.4 kozaiamp 180.0 180.0 180.0