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: 15RX280
# Created Sun Dec 22 02:10:29 2024
# Orbit generated from Bernstein formalism
# Fitting 30 observations of 30
# Arc: 2.42y
# First observation: 2015/06/23
# Last observation: 2017/11/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000083 0.016258 -0.000014 -0.006666 0.020697 0.000000
# Chi-squared of fit: 6.42 DOF: 54 RMS: 0.08
# Min/Max residuals: -0.28 0.30
# Exact a, adot, b, bdot, g, gdot:
1.222683E-05 1.593778E-02 -4.769708E-06 -6.615397E-03 2.043218E-02 1.647534E-03
# Covariance matrix:
1.9683E-13 4.2299E-14 1.3597E-14 -9.3401E-14 2.2838E-13 7.8438E-12
4.2299E-14 2.7360E-13 1.3064E-14 -1.0114E-13 2.9149E-13 8.5383E-12
1.3597E-14 1.3064E-14 1.1082E-13 -1.1513E-13 4.0180E-14 2.9816E-12
-9.3401E-14 -1.0114E-13 -1.1513E-13 3.0411E-13 -2.5934E-13 -1.5994E-11
2.2838E-13 2.9149E-13 4.0180E-14 -2.5934E-13 5.6955E-13 2.1714E-11
7.8438E-12 8.5383E-12 2.9816E-12 -1.5994E-11 2.1714E-11 1.3255E-09
# lat0 lon0 xBary yBary zBary JD0
2.503220 9.650105 1.006628 -0.006029 0.139986 2457197.020648
# Heliocentric elements and errors
Epoch: 2457190.5000 = 2015/06/17
Mean Anomaly: 142.72708 +/- 0.697
Argument of Peri: 22.41912 +/- 0.689
Long of Asc Node: 194.50268 +/- 0.000
Inclination: 22.63467 +/- 0.001
Eccentricity: 0.13640728 +/- 0.0009
Semi-Major Axis: 43.79851133 +/- 0.0112
Time of Perihelion: 2415215.4400 +/- 204.3
Perihelion: 37.82407572 +/- 0.0394
Aphelion: 49.77294695 +/- 0.0402
Period (y) 289.8660 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 48.23092190 +/- 0.0018
Ecliptic Y 7.18099958 +/- 0.0003
Ecliptic Z 2.13741356 +/- 0.0001
Ecliptic XDOT -0.00010486 +/- 0.0000
Ecliptic YDOT 0.00214262 +/- 0.0000
Ecliptic ZDOT -0.00087589 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 48.80939581 +/- 0.0018
Geocenter to KBO 48.94239907 +/- 0.0018
# Hcoef: 7.22
The following table shows the complete astrometric record for 15RX280. 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 (15RX280) followed by the observatory code and reference code for the source of the astrometry.
2015 06 23.51987 00 31 30.672 +06 07 27.87 24.3r 15RX280 568 C~2nvr 2015 07 14.61234 00 31 39.668 +06 08 10.85 24.1r 15RX280 568 C~2nvr 2015 08 13.47989 00 30 58.098 +06 03 12.17 23.4r 15RX280 568 C~2nvr 2015 08 13.50863 00 30 58.040 +06 03 11.76 24.0r 15RX280 568 C~2nvr 2015 08 13.51279 00 30 58.012 +06 03 11.60 24.3r 15RX280 568 C~2nvr 2015 08 13.53335 00 30 57.959 +06 03 11.47 24.6r 15RX280 568 C~2nvr 2015 08 20.41706 00 30 40.382 +06 01 07.11 24.2r 15RX280 568 C~2nvr 2015 09 07.56274 00 29 43.191 +05 54 19.33 24.2w 15RX280 568 C~2nvr 2015 09 09.39169 00 29 36.742 +05 53 32.84 24.0r 15RX280 568 C~2nvr 2015 09 09.43322 00 29 36.587 +05 53 31.78 24.1r 15RX280 568 C~2nvs 2015 09 09.47414 00 29 36.443 +05 53 30.72 24.2r 15RX280 568 C~2nvs 2015 09 10.49775 00 29 32.777 +05 53 04.29 24.2w 15RX280 568 C~2nvs 2015 09 18.45683 00 29 03.369 +05 49 30.88 24.1w 15RX280 568 C~2nvs 2015 10 08.34456 00 27 46.539 +05 39 58.66 24.1w 15RX280 568 C~2nvs 2015 10 08.39721 00 27 46.329 +05 39 57.19 24.2w 15RX280 568 C~2nvs 2015 10 09.31421 00 27 42.802 +05 39 30.18 24.2w 15RX280 568 C~2nvs 2015 11 10.43997 00 25 52.646 +05 24 44.84 24.1w 15RX280 568 C~2nvs 2015 12 08.23879 00 24 59.125 +05 15 51.42 24.4w 15RX280 568 C~2nvs 2016 09 05.48640 00 33 50.689 +05 55 33.27 24.3w 15RX280 568 C~2nvs 2016 09 06.44060 00 33 47.407 +05 55 09.40 24.4w 15RX280 568 C~2nvs 2016 09 06.48188 00 33 47.266 +05 55 08.37 24.2w 15RX280 568 C~2nvs 2016 09 26.43130 00 32 33.275 +05 46 07.84 24.2w 15RX280 568 C~2nvs 2016 11 03.39147 00 30 13.749 +05 28 11.42 24.3w 15RX280 568 C~2nvs 2016 11 03.45641 00 30 13.536 +05 28 09.71 24.2w 15RX280 568 C~2nvs 2016 12 25.23477 00 28 52.899 +05 14 00.15 24.4w 15RX280 568 C~2nvs 2016 12 25.25214 00 28 52.897 +05 14 00.14 24.5w 15RX280 568 C~2nvs 2017 01 02.28151 00 28 58.102 +05 13 39.10 15RX280 568 C~2nvs 2017 01 02.29442 00 28 58.104 +05 13 39.12 24.0w 15RX280 568 C~2nvs 2017 01 30.22034 00 29 54.391 +05 16 37.59 25.3w 15RX280 568 C~2nvs 2017 11 22.34219 00 33 24.833 +05 21 42.17 24.3w 15RX280 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 0.02 0.00 -0.07
2 0.0577 140.24 -0.12 -13.42 0.04
3 0.1395 -547.32 0.11 -43.28 -0.07
4 0.1396 -548.28 0.30 -43.32 -0.07
5 0.1396 -548.73 0.01 -43.30 -0.05
6 0.1397 -549.51 0.06 -43.11 0.16
7 0.1585 -839.50 -0.06 -53.89 0.03
8 0.2082 -1784.45 -0.10 -91.53 -0.03
9 0.2132 -1891.22 -0.03 -96.21 0.02
10 0.2133 -1893.77 -0.08 -96.27 0.05
11 0.2134 -1896.16 -0.02 -96.40 0.01
12 0.2162 -1956.86 -0.01 -99.06 0.02
13 0.2380 -2444.35 -0.04 -121.61 0.17
14 0.2925 -3724.14 -0.02 -193.43 -0.01
15 0.2926 -3727.60 -0.04 -193.54 0.08
16 0.2951 -3786.66 -0.05 -197.50 -0.02
17 0.3831 -5648.49 0.05 -358.62 -0.28
18 0.4592 -6594.71 0.07 -531.15 0.03
19 1.2046 1638.36 -0.01 -1479.61 0.10
20 1.2072 1583.95 -0.07 -1482.29 -0.02
21 1.2073 1581.61 -0.01 -1482.41 -0.05
22 1.2619 353.81 -0.00 -1544.58 0.02
23 1.3658 -1984.87 0.09 -1712.21 -0.04
24 1.3660 -1988.46 0.01 -1712.52 -0.04
25 1.5078 -3430.79 0.05 -2017.16 -0.07
26 1.5078 -3430.82 -0.01 -2017.15 0.03
27 1.5298 -3367.71 0.03 -2067.23 -0.06
28 1.5298 -3367.67 -0.09 -2067.22 0.02
29 1.6063 -2524.62 -0.12 -2235.55 0.11
30 2.4170 484.19 0.08 -3195.17 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.
15RX280 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 44.157 44.193 44.124 ecceobj 0.129 0.131 0.127 incobj 22.510 22.510 22.509 qmin 36.989 36.907 37.067 qmax 51.228 51.413 51.136 amean 43.969 44.007 43.934 amin 43.603 43.646 43.564 amax 44.376 44.412 44.329 emean 0.140 0.143 0.138 emin 0.124 0.129 0.123 emax 0.155 0.158 0.154 imean 22.643 22.627 22.633 imin 22.188 22.182 22.193 imax 23.088 23.054 23.070 excite_mean 0.410 0.410 0.409 fracstop 1.000 1.000 1.000 cjmean 2.894 2.893 2.894 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 170.2 171.0 169.8 kozaiamp 179.9 180.0 180.0