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: 15RC281
# Created Fri May 3 01:17:33 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 35 observations of 35
# Arc: 6.28y
# First observation: 2015/06/23
# Last observation: 2021/10/03
# Chi-squared of fit: 7.12 DOF: 64 RMS: 0.08
# Min/Max residuals: -0.19 0.20
# Exact a, adot, b, bdot, g, gdot:
1.404614E-05 1.969227E-02 1.245293E-06 1.171698E-03 2.147474E-02 7.266441E-04
# Covariance matrix:
1.3172E-13 -3.5748E-14 -1.9393E-15 -2.3076E-15 7.5202E-14 -2.3464E-13
-3.5748E-14 1.8951E-13 -9.4685E-15 1.3877E-14 9.5605E-14 1.6498E-12
-1.9393E-15 -9.4685E-15 5.8858E-14 -1.6380E-14 -8.8087E-15 -8.6967E-14
-2.3076E-15 1.3877E-14 -1.6380E-14 1.4938E-14 6.6799E-15 1.3079E-13
7.5202E-14 9.5605E-14 -8.8087E-15 6.6799E-15 1.5623E-13 8.4217E-13
-2.3464E-13 1.6498E-12 -8.6967E-14 1.3079E-13 8.4217E-13 1.5523E-11
# lat0 lon0 xBary yBary zBary JD0
2.684121 10.667696 1.004192 -0.007236 0.156422 2457197.102358
# Heliocentric elements and errors
Epoch: 2457196.5000 = 2015/06/23
Mean Anomaly: 127.49433 +/- 0.471
Argument of Peri: 268.73038 +/- 0.469
Long of Asc Node: 331.69277 +/- 0.003
Inclination: 4.39463 +/- 0.000
Eccentricity: 0.01773141 +/- 0.0001
Semi-Major Axis: 45.91288903 +/- 0.0029
Time of Perihelion: 2416953.6514 +/- 148.8
Perihelion: 45.09878867 +/- 0.0071
Aphelion: 46.72698938 +/- 0.0072
Period (y) 311.1073 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.73980618 +/- 0.0008
Ecliptic Y 7.59522284 +/- 0.0002
Ecliptic Z 2.18079612 +/- 0.0000
Ecliptic XDOT -0.00038314 +/- 0.0000
Ecliptic YDOT 0.00247681 +/- 0.0000
Ecliptic ZDOT 0.00015362 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.41737047 +/- 0.0008
Geocenter to KBO 46.56632852 +/- 0.0009
# Hcoef: 7.28
The following table shows the complete astrometric record for 15RC281. 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 (15RC281) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.60158 00 34 59.106 +06 41 28.30 24.2r 15RC281 568 C~2nvs 2015 07 14.55424 00 35 09.709 +06 44 11.29 23.7r 15RC281 568 C~2nvs 2015 07 19.52115 00 35 07.214 +06 44 17.81 23.9r 15RC281 568 C~2nvs 2015 08 13.49219 00 34 27.309 +06 41 47.66 23.7r 15RC281 568 C~2nvs 2015 08 13.61738 00 34 26.988 +06 41 46.16 23.9r 15RC281 568 C~2nvs 2015 08 19.55480 00 34 11.360 +06 40 28.26 24.0r 15RC281 568 C~2nvs 2015 08 19.62493 00 34 11.160 +06 40 26.89 24.5r 15RC281 568 C~2nvs 2015 08 20.43022 00 34 08.887 +06 40 15.41 23.6r 15RC281 568 C~2nvs 2015 08 20.47949 00 34 08.738 +06 40 14.55 23.8r 15RC281 568 C~2nvs 2015 09 07.57672 00 33 08.967 +06 34 46.85 24.2w 15RC281 568 C~2nvs 2015 09 09.40442 00 33 02.179 +06 34 07.86 23.8r 15RC281 568 C~2nvs 2015 09 09.44553 00 33 02.023 +06 34 06.97 23.7r 15RC281 568 C~2nvs 2015 09 09.48644 00 33 01.867 +06 34 06.03 23.9r 15RC281 568 C~2nvs 2015 09 10.51074 00 32 58.013 +06 33 43.78 24.0w 15RC281 568 C~2nvs 2015 09 18.47260 00 32 27.010 +06 30 41.45 24.3w 15RC281 568 C~2nvs 2015 10 08.36042 00 31 05.631 +06 22 21.68 24.1w 15RC281 568 C~2nvs 2015 10 08.41303 00 31 05.415 +06 22 20.34 24.0w 15RC281 568 C~2nvs 2015 10 09.33000 00 31 01.670 +06 21 56.47 24.3w 15RC281 568 C~2nvs 2015 11 10.45634 00 29 03.824 +06 08 54.64 24.1w 15RC281 568 C~2nvs 2015 12 08.25463 00 28 05.205 +06 01 29.02 24.4w 15RC281 568 C~2nvs 2016 01 01.31705 00 28 02.272 +05 59 53.04 24.0w 15RC281 568 C~2nvs 2016 01 02.26815 00 28 03.152 +05 59 55.46 24.2w 15RC281 568 C~2nvs 2016 09 05.49045 00 37 23.163 +07 06 12.50 23.6w 15RC281 568 C~2nvs 2016 09 06.44465 00 37 19.708 +07 05 52.78 24.4w 15RC281 568 C~2nvs 2016 09 06.48592 00 37 19.559 +07 05 52.01 24.0w 15RC281 568 C~2nvs 2016 09 26.44346 00 36 01.356 +06 58 12.32 24.2w 15RC281 568 C~2nvs 2016 11 03.46810 00 33 32.211 +06 42 14.83 24.1w 15RC281 568 C~2nvs 2016 12 25.26033 00 32 02.824 +06 30 24.22 24.0w 15RC281 568 C~2nvs 2017 01 02.30275 00 32 07.595 +06 30 27.43 24.6w 15RC281 568 C~2nvs 2017 01 30.23419 00 33 04.659 +06 35 03.54 24.5w 15RC281 568 C~2nvs 2017 09 16.50931 00 40 52.360 +07 33 09.27 24.2w 15RC281 568 C~2nvs 2017 09 22.46275 00 40 28.634 +07 30 49.81 24.2w 15RC281 568 C~2nvs 2021 10 03.301800 00 56 31.623 +09 28 31.32 23.9G 15RC281 G37 C~55Wp 2021 10 03.338380 00 56 31.473 +09 28 30.56 15RC281 G37 C~55Wp 2021 10 03.375160 00 56 31.311 +09 28 29.57 15RC281 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 0.12 0.00 -0.04
2 0.0574 0.00 0.05 0.00 -0.08
3 0.0710 0.00 0.02 0.00 -0.07
4 0.1393 0.00 0.08 0.00 -0.08
5 0.1397 0.00 0.00 0.00 -0.09
6 0.1559 0.00 0.09 0.00 0.17
7 0.1561 0.00 0.12 0.00 -0.19
8 0.1583 0.00 0.05 0.00 0.10
9 0.1585 0.00 -0.03 0.00 -0.04
10 0.2080 0.00 -0.07 0.00 -0.01
11 0.2130 0.00 -0.16 0.00 0.03
12 0.2131 0.00 -0.14 0.00 0.02
13 0.2132 0.00 -0.13 0.00 -0.03
14 0.2160 0.00 -0.02 0.00 0.02
15 0.2378 0.00 0.00 0.00 -0.13
16 0.2923 0.00 -0.02 0.00 0.03
17 0.2924 0.00 0.03 0.00 0.06
18 0.2949 0.00 0.11 0.00 -0.04
19 0.3829 0.00 0.07 0.00 -0.01
20 0.4590 0.00 0.05 0.00 0.09
21 0.5249 0.00 -0.08 0.00 0.11
22 0.5275 0.00 0.05 0.00 0.06
23 1.2044 0.00 0.09 0.00 0.20
24 1.2070 0.00 0.04 0.00 -0.04
25 1.2071 0.00 0.11 0.00 0.04
26 1.2617 0.00 -0.03 0.00 -0.00
27 1.3658 0.00 -0.10 0.00 -0.03
28 1.5076 0.00 -0.01 0.00 0.04
29 1.5296 0.00 -0.04 0.00 0.05
30 1.6061 0.00 0.12 0.00 -0.10
31 2.2338 0.00 -0.04 0.00 0.05
32 2.2501 0.00 -0.12 0.00 0.07
33 6.2798 0.00 -0.00 0.00 -0.09
34 6.2799 0.00 0.06 0.00 0.05
35 6.2800 0.00 -0.04 0.00 -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.
15RC281 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.380 46.380 46.380 ecceobj 0.015 0.015 0.015 incobj 4.379 4.379 4.379 qmin 44.709 44.708 44.713 qmax 47.701 47.701 47.695 amean 46.129 46.130 46.129 amin 45.773 45.773 45.772 amax 46.493 46.494 46.491 emean 0.015 0.015 0.015 emin 0.003 0.003 0.003 emax 0.026 0.026 0.026 imean 5.506 5.506 5.506 imin 5.166 5.166 5.166 imax 5.829 5.829 5.829 excite_mean 0.097 0.097 0.097 fracstop 1.000 1.000 1.000 cjmean 3.116 3.116 3.116 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 178.5 178.5 178.7 kozaiamp 180.0 180.0 180.0