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: 15RE279
# Created Tue Jan 21 02:10:40 2025
# Orbit generated from Bernstein formalism
# Fitting 28 observations of 28
# Arc: 2.36y
# First observation: 2015/07/14
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000005 0.019964 -0.000020 0.004874 0.021901 0.000000
# Chi-squared of fit: 7.24 DOF: 50 RMS: 0.09
# Min/Max residuals: -0.26 0.31
# Exact a, adot, b, bdot, g, gdot:
1.493880E-05 1.950647E-02 3.812702E-06 4.748210E-03 2.152507E-02 -8.013956E-03
# Covariance matrix:
2.3065E-13 8.8484E-14 -1.7277E-14 5.1564E-14 2.4947E-13 4.9236E-12
8.8484E-14 4.1867E-13 -3.8225E-14 1.2735E-13 4.3114E-13 1.2218E-11
-1.7277E-14 -3.8225E-14 1.2222E-13 -9.4345E-14 -4.8075E-14 -1.5348E-12
5.1564E-14 1.2735E-13 -9.4345E-14 1.4801E-13 1.5386E-13 5.3960E-12
2.4947E-13 4.3114E-13 -4.8075E-14 1.5386E-13 5.9966E-13 1.4737E-11
4.9236E-12 1.2218E-11 -1.5348E-12 5.3960E-12 1.4737E-11 5.1878E-10
# lat0 lon0 xBary yBary zBary JD0
2.551922 10.036625 0.996091 0.009364 -0.207722 2457218.109039
# Heliocentric elements and errors
Epoch: 2457210.5000 = 2015/07/07
Mean Anomaly: 318.17936 +/- 0.087
Argument of Peri: 99.59941 +/- 0.008
Long of Asc Node: 358.64917 +/- 0.001
Inclination: 14.11230 +/- 0.001
Eccentricity: 0.42850108 +/- 0.0012
Semi-Major Axis: 57.54332482 +/- 0.0716
Time of Perihelion: 2475732.1241 +/- 17.2
Perihelion: 32.88594796 +/- 0.0787
Aphelion: 82.20070167 +/- 0.1225
Period (y) 436.5165 +/- 0.82
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 46.07588925 +/- 0.0016
Ecliptic Y 7.14425648 +/- 0.0003
Ecliptic Z 2.06872928 +/- 0.0001
Ecliptic XDOT -0.00146389 +/- 0.0000
Ecliptic YDOT 0.00225469 +/- 0.0000
Ecliptic ZDOT 0.00055802 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.67234311 +/- 0.0016
Geocenter to KBO 46.45745806 +/- 0.0017
# Hcoef: 8.26
The following table shows the complete astrometric record for 15RE279. 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 (15RE279) followed by the observatory code and reference code for the source of the astrometry.
2015 07 14.60825 00 32 51.710 +06 19 17.04 24.5r 15RE279 568 C~2lVT 2015 07 19.58735 00 32 48.656 +06 19 29.76 24.7r 15RE279 568 C~2lVT 2015 08 13.53744 00 32 06.253 +06 17 32.82 25.1r 15RE279 568 C~2lVT 2015 08 20.47055 00 31 47.248 +06 16 10.09 25.3r 15RE279 568 C~2lVT 2015 09 07.56844 00 30 46.110 +06 11 10.29 24.9w 15RE279 568 C~2lVT 2015 09 09.39585 00 30 39.209 +06 10 34.26 25.3r 15RE279 568 C~2lVT 2015 09 09.43729 00 30 39.058 +06 10 33.39 25.1r 15RE279 568 C~2lVT 2015 09 09.47825 00 30 38.887 +06 10 32.59 24.8r 15RE279 568 C~2lVT 2015 09 10.50253 00 30 34.963 +06 10 11.98 25.2w 15RE279 568 C~2lVT 2015 09 18.46210 00 30 03.472 +06 07 22.95 25.2w 15RE279 568 C~2lVT 2015 10 08.34986 00 28 41.072 +05 59 39.03 25.1w 15RE279 568 C~2lVT 2015 10 08.40249 00 28 40.854 +05 59 37.89 25.5w 15RE279 568 C~2lVT 2015 10 09.31945 00 28 37.069 +05 59 15.76 25.2w 15RE279 568 C~2lVT 2016 01 01.30664 00 25 35.595 +05 40 08.79 25.1w 15RE279 568 C~2lVT 2016 09 05.49449 00 34 37.201 +06 53 55.93 25.6w 15RE279 568 C~2lVT 2016 09 06.44869 00 34 33.661 +06 53 37.95 25.4w 15RE279 568 C~2lVT 2016 09 06.48996 00 34 33.495 +06 53 37.29 25.1w 15RE279 568 C~2lVT 2016 09 27.50093 00 33 08.986 +06 46 05.13 24.8w 15RE279 568 C~2lVT 2016 11 03.37410 00 30 42.034 +06 31 39.30 25.2w 15RE279 568 C~2lVT 2016 11 03.43201 00 30 41.826 +06 31 38.00 25.1w 15RE279 568 C~2lVT 2016 12 25.22839 00 29 11.156 +06 21 24.81 24.9w 15RE279 568 C~2lVT 2016 12 25.26033 00 29 11.163 +06 21 24.73 24.8w 15RE279 568 C~2lVT 2017 01 02.27514 00 29 15.918 +06 21 44.17 25.0w 15RE279 568 C~2lVT 2017 01 02.30275 00 29 15.936 +06 21 44.18 24.8w 15RE279 568 C~2lVT 2017 01 29.23654 00 30 10.200 +06 27 00.50 15RE279 568 C~2lVT 2017 09 16.48602 00 37 46.190 +07 33 19.71 24.7w 15RE279 568 C~2lVT 2017 09 22.43395 00 37 21.727 +07 31 09.40 25.4w 15RE279 568 C~2lVT 2017 11 22.34963 00 33 33.918 +07 08 30.96 24.8w 15RE279 568 C~2lVT
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 -0.13 0.00 -0.07
2 0.0136 -36.83 -0.05 29.63 -0.01
3 0.0819 -663.93 0.05 171.42 0.31
4 0.1009 -956.95 0.12 207.18 -0.00
5 0.1505 -1912.96 -0.03 291.64 0.01
6 0.1555 -2021.75 0.00 299.20 0.01
7 0.1556 -2024.16 0.12 299.29 -0.09
8 0.1557 -2026.82 -0.03 299.56 -0.00
9 0.1585 -2088.73 0.04 303.75 -0.02
10 0.1803 -2587.01 -0.10 334.09 -0.26
11 0.2347 -3899.70 -0.10 394.26 0.03
12 0.2349 -3903.14 0.00 394.50 0.12
13 0.2374 -3963.77 0.04 396.53 0.01
14 0.4673 -6906.71 0.02 417.47 0.02
15 1.1468 2263.46 -0.01 1292.27 -0.05
16 1.1495 2207.91 0.11 1296.47 -0.11
17 1.1496 2205.38 0.04 1296.83 0.05
18 1.2071 870.26 -0.05 1376.59 -0.00
19 1.3081 -1483.28 -0.04 1444.76 0.10
20 1.3082 -1486.64 -0.13 1444.79 0.08
21 1.4500 -2970.64 0.12 1415.97 -0.02
22 1.4501 -2970.57 0.10 1415.85 -0.10
23 1.4721 -2897.76 -0.01 1405.65 -0.03
24 1.4721 -2897.51 -0.14 1405.55 -0.10
25 1.5459 -2029.34 0.14 1376.15 -0.03
26 2.1763 5779.52 0.09 2363.14 0.08
27 2.1925 5393.47 -0.09 2385.73 0.04
28 2.3593 1741.66 -0.08 2467.57 0.01
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.
15RE279 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 58.271 58.470 58.074 ecceobj 0.430 0.433 0.427 incobj 14.033 14.033 14.033 qmin 32.218 31.881 32.355 qmax 87.837 85.496 83.880 amean 58.607 57.563 57.345 amin 56.963 56.055 56.213 amax 60.283 59.078 58.424 emean 0.427 0.425 0.416 emin 0.399 0.403 0.393 emax 0.458 0.450 0.436 imean 15.389 14.562 15.112 imin 13.485 12.967 13.585 imax 16.662 16.076 16.273 excite_mean 0.503 0.494 0.491 fracstop 1.000 1.000 1.000 cjmean 2.946 2.944 2.947 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 174.7 181.5 175.0 kozaiamp 180.0 179.9 180.0