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: 15RE281
# Created Wed May 8 01:17:20 2024
# Orbit generated from Bernstein formalism
# Fitting 31 observations of 31
# Arc: 2.25y
# First observation: 2015/06/23
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000062 0.020242 -0.000000 0.002762 0.022066 0.000000
# Chi-squared of fit: 22.33 DOF: 56 RMS: 0.15
# Min/Max residuals: -0.38 0.37
# Exact a, adot, b, bdot, g, gdot:
1.324096E-05 1.974990E-02 1.712786E-06 2.696321E-03 2.170089E-02 -2.730158E-03
# Covariance matrix:
1.6061E-13 1.3360E-14 -9.2517E-15 1.5431E-14 1.3211E-13 2.4097E-12
1.3360E-14 3.6094E-13 -2.7150E-14 6.4446E-14 3.0435E-13 1.0074E-11
-9.2517E-15 -2.7150E-14 1.0724E-13 -8.2984E-14 -3.1498E-14 -1.0456E-12
1.5431E-14 6.4446E-14 -8.2984E-14 1.1653E-13 6.7609E-14 2.7477E-12
1.3211E-13 3.0435E-13 -3.1498E-14 6.7609E-14 3.8422E-13 1.0566E-11
2.4097E-12 1.0074E-11 -1.0456E-12 2.7477E-12 1.0566E-11 4.2961E-10
# lat0 lon0 xBary yBary zBary JD0
3.234966 11.470876 1.001909 -0.009529 0.170315 2457197.106478
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 277.58234 +/- 0.110
Argument of Peri: 123.04310 +/- 0.061
Long of Asc Node: 348.00658 +/- 0.002
Inclination: 8.53315 +/- 0.001
Eccentricity: 0.15878393 +/- 0.0010
Semi-Major Axis: 45.72933369 +/- 0.0151
Time of Perihelion: 2483049.3081 +/- 32.2
Perihelion: 38.46825053 +/- 0.0477
Aphelion: 52.99041685 +/- 0.0492
Period (y) 309.2435 +/- 0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 45.11720322 +/- 0.0013
Ecliptic Y 8.13415090 +/- 0.0003
Ecliptic Z 2.60052487 +/- 0.0001
Ecliptic XDOT -0.00085383 +/- 0.0000
Ecliptic YDOT 0.00236349 +/- 0.0000
Ecliptic ZDOT 0.00032026 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.91828794 +/- 0.0013
Geocenter to KBO 46.08105378 +/- 0.0013
# Hcoef: 8.84
The following table shows the complete astrometric record for 15RE281. 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 (15RE281) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.60570 00 37 05.049 +07 30 47.41 26.0r 15RE281 568 C~2nvt 2015 07 14.55424 00 37 16.174 +07 34 10.29 25.7r 15RE281 568 C~2nvt 2015 07 19.53302 00 37 13.711 +07 34 26.48 25.3r 15RE281 568 C~2nvt 2015 08 13.61738 00 36 33.311 +07 32 38.40 26.2r 15RE281 568 C~2nvt 2015 08 19.62493 00 36 17.275 +07 31 28.19 26.6r 15RE281 568 C~2nvt 2015 08 20.43022 00 36 14.960 +07 31 17.52 25.7r 15RE281 568 C~2nvt 2015 08 20.47949 00 36 14.836 +07 31 16.73 25.7r 15RE281 568 C~2nvt 2015 09 07.57672 00 35 14.187 +07 26 12.21 25.5w 15RE281 568 C~2nvt 2015 09 09.40442 00 35 07.290 +07 25 34.97 24.9r 15RE281 568 C~2nvt 2015 09 09.44553 00 35 07.127 +07 25 34.10 24.9r 15RE281 568 C~2nvt 2015 09 09.48644 00 35 06.962 +07 25 33.23 25.1r 15RE281 568 C~2nvt 2015 09 10.51074 00 35 03.052 +07 25 12.01 25.3w 15RE281 568 C~2nvt 2015 10 08.36042 00 33 08.400 +07 14 09.95 25.4w 15RE281 568 C~2nvt 2015 10 08.41303 00 33 08.182 +07 14 08.54 25.2w 15RE281 568 C~2nvt 2015 10 09.33000 00 33 04.336 +07 13 45.13 25.7w 15RE281 568 C~2nvt 2015 12 08.25463 00 30 01.779 +06 53 09.74 25.5w 15RE281 568 C~2nvt 2016 01 01.31705 00 29 56.996 +06 51 22.70 25.7w 15RE281 568 C~2nvt 2016 01 02.26815 00 29 57.820 +06 51 24.92 26.8w 15RE281 568 C~2nvt 2016 09 05.47832 00 39 22.045 +08 02 44.27 25.4w 15RE281 568 C~2nvt 2016 09 06.43252 00 39 18.534 +08 02 26.08 25.6w 15RE281 568 C~2nvt 2016 09 06.47297 00 39 18.389 +08 02 25.25 25.1w 15RE281 568 C~2nvt 2016 09 25.44453 00 38 02.611 +07 55 27.09 24.9w 15RE281 568 C~2nvt 2016 09 26.42725 00 37 58.492 +07 55 03.21 25.7w 15RE281 568 C~2nvt 2016 11 03.41462 00 35 25.261 +07 39 13.69 25.5w 15RE281 568 C~2nvt 2016 12 26.24341 00 33 50.879 +07 26 54.17 26.1w 15RE281 568 C~2nvt 2016 12 29.23147 00 33 52.045 +07 26 51.42 26.2w 15RE281 568 C~2nvt 2016 12 29.25523 00 33 52.052 +07 26 51.06 15RE281 568 C~2nvt 2017 01 02.30911 00 33 54.921 +07 26 55.19 25.3w 15RE281 568 C~2nvt 2017 01 27.27188 00 34 42.329 +07 30 34.67 25.2w 15RE281 568 C~2nvt 2017 09 16.52796 00 42 45.623 +08 35 14.40 25.6w 15RE281 568 C~2nvt 2017 09 22.48140 00 42 21.284 +08 32 59.83 25.6w 15RE281 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 0.24 0.00 0.05
2 0.0574 231.87 -0.00 121.50 -0.38
3 0.0710 204.56 -0.10 150.79 0.04
4 0.1397 -390.26 0.37 287.69 0.19
5 0.1561 -637.12 0.06 317.00 0.20
6 0.1583 -672.96 -0.23 320.74 0.24
7 0.1584 -674.97 0.02 320.74 -0.01
8 0.2080 -1624.03 0.03 396.15 0.16
9 0.2130 -1732.99 -0.05 402.37 0.01
10 0.2131 -1735.56 -0.11 402.52 0.01
11 0.2132 -1738.16 -0.20 402.69 0.01
12 0.2160 -1799.98 0.04 406.12 -0.07
13 0.2923 -3628.87 -0.08 471.20 0.00
14 0.2924 -3632.41 -0.01 471.19 -0.10
15 0.2949 -3694.25 -0.13 472.31 -0.05
16 0.4590 -6680.85 -0.12 414.20 -0.06
17 0.5249 -6788.82 0.06 344.18 -0.20
18 0.5275 -6776.66 0.28 341.34 -0.13
19 1.2043 2625.26 -0.15 963.69 -0.02
20 1.2069 2570.15 0.05 967.39 0.12
21 1.2070 2567.84 0.15 967.47 0.03
22 1.2590 1368.25 -0.14 1024.47 0.06
23 1.2617 1302.59 -0.08 1026.54 -0.04
24 1.3657 -1164.66 0.03 1049.49 0.11
25 1.5103 -2746.19 0.24 923.63 -0.23
26 1.5185 -2731.34 -0.17 914.25 0.12
27 1.5185 -2731.39 -0.36 913.88 -0.19
28 1.5296 -2690.55 -0.02 900.82 -0.03
29 1.5980 -1955.99 0.37 824.20 -0.01
30 2.2339 6170.57 0.04 1577.54 0.02
31 2.2502 5785.34 -0.02 1594.44 0.12
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.
15RE281 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.185 46.224 46.146 ecceobj 0.157 0.160 0.154 incobj 8.491 8.491 8.491 qmin 37.863 37.771 37.962 qmax 54.355 54.529 54.175 amean 45.916 45.955 45.878 amin 45.536 45.554 45.495 amax 46.371 46.408 46.347 emean 0.159 0.162 0.156 emin 0.146 0.149 0.143 emax 0.173 0.176 0.170 imean 9.050 9.049 9.057 imin 8.426 8.434 8.432 imax 9.630 9.639 9.623 excite_mean 0.224 0.226 0.222 fracstop 1.000 1.000 1.000 cjmean 3.063 3.063 3.064 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 178.9 179.0 179.0 kozaiamp 180.0 180.0 179.9