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: 15RB281
# Created Wed May 8 01:17:20 2024
# Orbit generated from Bernstein formalism
# Fitting 38 observations of 38
# Arc: 2.25y
# First observation: 2015/06/23
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000078 0.025114 0.000005 -0.000029 0.024743 0.000000
# Chi-squared of fit: 6.58 DOF: 70 RMS: 0.07
# Min/Max residuals: -0.16 0.30
# Exact a, adot, b, bdot, g, gdot:
1.561186E-05 2.452669E-02 3.993693E-07 -3.089264E-05 2.433227E-02 6.835819E-04
# Covariance matrix:
1.2216E-13 9.4197E-15 -3.2111E-15 8.0771E-16 9.9858E-14 1.1736E-12
9.4197E-15 4.0236E-13 -9.5297E-15 6.9968E-15 2.9307E-13 9.1730E-12
-3.2111E-15 -9.5297E-15 7.7293E-14 -5.6057E-14 -1.0263E-14 -2.4262E-13
8.0771E-16 6.9968E-15 -5.6057E-14 7.8525E-14 5.5620E-15 2.1078E-13
9.9858E-14 2.9307E-13 -1.0263E-14 5.5620E-15 3.1703E-13 7.4379E-12
1.1736E-12 9.1730E-12 -2.4262E-13 2.1078E-13 7.4379E-12 2.7393E-10
# lat0 lon0 xBary yBary zBary JD0
2.197973 10.886913 1.003585 -0.006056 0.160316 2457197.102368
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 2.28047 +/- 0.726
Argument of Peri: 87.81890 +/- 0.806
Long of Asc Node: 279.11305 +/- 0.017
Inclination: 2.20625 +/- 0.000
Eccentricity: 0.05033513 +/- 0.0001
Semi-Major Axis: 43.11450808 +/- 0.0024
Time of Perihelion: 2456535.4793 +/- 208.7
Perihelion: 40.94433388 +/- 0.0037
Aphelion: 45.28468229 +/- 0.0039
Period (y) 283.1023 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.35678995 +/- 0.0009
Ecliptic Y 6.74111091 +/- 0.0002
Ecliptic Z 1.57626885 +/- 0.0000
Ecliptic XDOT -0.00044809 +/- 0.0000
Ecliptic YDOT 0.00271836 +/- 0.0000
Ecliptic ZDOT -0.00000046 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.94627816 +/- 0.0009
Geocenter to KBO 41.09769059 +/- 0.0010
# Hcoef: 7.42
The following table shows the complete astrometric record for 15RB281. 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 (15RB281) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.60159 00 36 33.934 +06 19 49.31 23.3r 15RB281 568 C~2nvs 2015 07 14.55013 00 36 48.835 +06 22 38.42 23.5r 15RB281 568 C~2nvs 2015 07 19.52115 00 36 46.698 +06 22 42.07 23.6r 15RB281 568 C~2nvs 2015 08 13.48810 00 36 04.792 +06 19 34.78 23.3r 15RB281 568 C~2nvs 2015 08 13.54153 00 36 04.642 +06 19 34.23 23.3r 15RB281 568 C~2nvs 2015 08 13.56200 00 36 04.594 +06 19 33.92 23.3r 15RB281 568 C~2nvs 2015 08 19.55072 00 35 47.473 +06 18 01.18 23.6r 15RB281 568 C~2nvs 2015 08 19.59211 00 35 47.335 +06 18 00.20 23.6r 15RB281 568 C~2nvs 2015 08 19.62083 00 35 47.266 +06 17 59.85 23.3r 15RB281 568 C~2nvs 2015 08 20.42524 00 35 44.785 +06 17 45.79 23.6r 15RB281 568 C~2nvs 2015 08 20.47472 00 35 44.628 +06 17 44.96 23.6r 15RB281 568 C~2nvs 2015 09 07.57262 00 34 38.944 +06 11 23.54 23.5w 15RB281 568 C~2nvs 2015 09 09.40034 00 34 31.446 +06 10 38.47 23.7r 15RB281 568 C~2nvs 2015 09 09.44140 00 34 31.271 +06 10 37.44 23.6r 15RB281 568 C~2nvs 2015 09 09.48235 00 34 31.099 +06 10 36.44 23.5r 15RB281 568 C~2nvs 2015 09 10.50662 00 34 26.834 +06 10 10.63 23.9w 15RB281 568 C~2nvs 2015 09 18.46733 00 33 52.504 +06 06 40.66 24.0w 15RB281 568 C~2nvs 2015 10 08.35519 00 32 22.062 +05 57 07.93 23.6w 15RB281 568 C~2nvs 2015 10 08.40774 00 32 21.812 +05 57 06.37 23.6w 15RB281 568 C~2nvs 2015 10 09.32476 00 32 17.645 +05 56 39.21 23.7w 15RB281 568 C~2nvs 2015 11 10.45092 00 30 06.592 +05 41 52.94 23.8w 15RB281 568 C~2nvs 2015 12 08.24937 00 29 02.228 +05 33 36.78 24.2w 15RB281 568 C~2nvs 2016 01 01.31185 00 29 00.670 +05 31 59.46 23.9w 15RB281 568 C~2nvs 2016 01 02.26295 00 29 01.731 +05 32 02.69 23.5w 15RB281 568 C~2nvs 2016 09 05.49045 00 40 04.115 +06 45 43.45 23.8w 15RB281 568 C~2nvs 2016 09 06.44465 00 40 00.325 +06 45 20.99 23.5w 15RB281 568 C~2nvs 2016 09 06.48592 00 40 00.153 +06 45 19.97 23.5w 15RB281 568 C~2nvs 2016 09 26.44346 00 38 33.637 +06 36 31.71 23.9w 15RB281 568 C~2nvs 2016 10 26.40787 00 36 19.405 +06 22 00.71 23.6r 15RB281 568 C~2nvs 2016 10 26.47363 00 36 19.129 +06 21 58.81 23.7r 15RB281 568 C~2nvs 2016 11 03.40304 00 35 47.651 +06 18 24.24 23.9w 15RB281 568 C~2nvs 2016 11 03.46810 00 35 47.400 +06 18 22.54 23.9w 15RB281 568 C~2nvs 2016 12 29.24794 00 34 10.739 +06 05 11.30 23.7w 15RB281 568 C~2nvs 2017 01 03.21812 00 34 15.460 +06 05 22.95 23.5w 15RB281 568 C~2nvs 2017 01 30.23419 00 35 20.279 +06 10 42.66 23.8w 15RB281 568 C~2nvs 2017 09 15.43089 00 44 44.622 +07 15 19.81 23.6w 15RB281 568 C~2nvs 2017 09 22.46275 00 44 13.743 +07 12 11.94 24.1w 15RB281 568 C~2nvs 2017 09 22.49605 00 44 13.584 +07 12 11.16 23.7w 15RB281 568 C~2nvs
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 0.07 0.00 -0.09
2 0.0574 270.73 -0.02 68.21 0.03
3 0.0710 242.87 -0.03 84.09 -0.09
4 0.1393 -405.20 -0.16 157.44 -0.09
5 0.1395 -407.47 -0.13 157.81 0.12
6 0.1395 -408.25 -0.03 157.81 0.05
7 0.1559 -679.41 0.10 172.93 0.30
8 0.1560 -681.69 -0.12 172.84 0.09
9 0.1561 -682.77 0.23 172.92 0.09
10 0.1583 -722.31 -0.02 174.55 -0.08
11 0.1584 -724.79 0.00 174.71 -0.06
12 0.2080 -1775.32 0.02 209.59 -0.04
13 0.2130 -1895.86 -0.01 212.21 0.03
14 0.2131 -1898.66 -0.03 212.29 0.03
15 0.2132 -1901.42 -0.01 212.38 0.05
16 0.2160 -1970.05 0.04 213.72 -0.03
17 0.2378 -2523.42 0.11 222.50 -0.08
18 0.2923 -3989.44 0.04 228.46 -0.02
19 0.2924 -3993.48 -0.04 228.50 0.00
20 0.2949 -4061.35 0.04 228.09 -0.06
21 0.3829 -6209.42 -0.03 187.07 -0.01
22 0.4590 -7289.31 0.01 111.84 0.00
23 0.5249 -7349.29 -0.04 31.65 -0.02
24 0.5275 -7333.45 0.02 28.34 -0.07
25 1.2044 3491.08 -0.03 201.13 0.02
26 1.2070 3430.32 0.10 202.56 0.01
27 1.2071 3427.56 0.04 202.62 -0.01
28 1.2617 2034.46 -0.02 221.56 0.01
29 1.3438 -147.52 -0.01 205.96 -0.01
30 1.3439 -152.05 -0.01 205.83 -0.08
31 1.3656 -667.90 -0.07 193.09 0.01
32 1.3658 -672.01 -0.08 193.00 0.02
33 1.5185 -2308.65 -0.01 33.16 0.01
34 1.5321 -2239.33 -0.03 16.13 -0.06
35 1.6061 -1224.75 0.16 -70.68 -0.07
36 2.2309 8033.05 -0.02 206.79 0.01
37 2.2501 7535.95 0.02 212.60 -0.04
38 2.2502 7533.46 -0.03 212.80 0.13
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.
15RB281 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.557 43.566 43.548 ecceobj 0.060 0.061 0.060 incobj 2.207 2.207 2.207 qmin 39.949 39.934 39.952 qmax 46.949 46.903 46.861 amean 43.314 43.323 43.305 amin 42.977 42.986 42.968 amax 43.673 43.677 43.661 emean 0.058 0.058 0.058 emin 0.038 0.039 0.039 emax 0.075 0.075 0.074 imean 4.056 4.056 4.057 imin 3.121 3.128 3.115 imax 4.862 4.860 4.862 excite_mean 0.091 0.091 0.091 fracstop 1.000 1.000 1.000 cjmean 3.083 3.083 3.083 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 184.2 184.9 184.3 kozaiamp 180.0 180.0 180.0