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: 15RG280
# Created Wed May 8 01:17:19 2024
# Orbit generated from Bernstein formalism
# Fitting 29 observations of 29
# Arc: 2.18y
# First observation: 2015/07/19
# Last observation: 2017/09/22
Preliminary a, adot, b, bdot, g, gdot:
-0.000086 0.025669 0.000002 -0.000696 0.025195 0.000000
# Chi-squared of fit: 9.96 DOF: 52 RMS: 0.10
# Min/Max residuals: -0.27 0.32
# Exact a, adot, b, bdot, g, gdot:
1.544024E-05 2.525586E-02 1.830937E-08 -6.872387E-04 2.492178E-02 1.057447E-03
# Covariance matrix:
2.7930E-13 3.7407E-14 -1.7280E-15 -3.2212E-15 2.4146E-13 2.8787E-12
3.7407E-14 3.8985E-13 -2.7295E-16 -1.0052E-14 2.8868E-13 8.8651E-12
-1.7280E-15 -2.7295E-16 1.1365E-13 -7.6971E-14 -2.0055E-15 -1.0940E-15
-3.2212E-15 -1.0052E-14 -7.6971E-14 9.2504E-14 -9.0605E-15 -3.0213E-13
2.4146E-13 2.8868E-13 -2.0055E-15 -9.0605E-15 4.1995E-13 8.0311E-12
2.8787E-12 8.8651E-12 -1.0940E-15 -3.0213E-13 8.0311E-12 2.6629E-10
# lat0 lon0 xBary yBary zBary JD0
1.150110 11.413585 0.982313 0.005432 -0.265384 2457223.046109
# Heliocentric elements and errors
Epoch: 2457220.5000 = 2015/07/17
Mean Anomaly: 17.47352 +/- 0.626
Argument of Peri: 123.86440 +/- 0.701
Long of Asc Node: 226.75858 +/- 0.012
Inclination: 1.90942 +/- 0.001
Eccentricity: 0.05181819 +/- 0.0002
Semi-Major Axis: 42.48824499 +/- 0.0032
Time of Perihelion: 2452310.5228 +/- 176.0
Perihelion: 40.28658108 +/- 0.0109
Aphelion: 44.68990890 +/- 0.0110
Period (y) 276.9564 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.77509844 +/- 0.0010
Ecliptic Y 7.02876768 +/- 0.0002
Ecliptic Z 0.80544429 +/- 0.0000
Ecliptic XDOT -0.00043596 +/- 0.0000
Ecliptic YDOT 0.00273667 +/- 0.0000
Ecliptic ZDOT -0.00007309 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.39939073 +/- 0.0010
Geocenter to KBO 40.12554849 +/- 0.0010
# Hcoef: 8.71
The following table shows the complete astrometric record for 15RG280. 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 (15RG280) followed by the observatory code and reference code for the source of the astrometry.
2015 07 19.54532 00 40 09.993 +05 34 23.18 24.9r 15RG280 568 C~2nvp 2015 08 11.50751 00 39 34.856 +05 31 09.31 24.2r 15RG280 568 C~2nvp 2015 09 08.41317 00 38 01.161 +05 21 34.65 24.7r 15RG280 568 C~2nvp 2015 09 08.51862 00 38 00.728 +05 21 32.04 24.5r 15RG280 568 C~2nvp 2015 09 08.56094 00 38 00.540 +05 21 30.95 24.9r 15RG280 568 C~2nvp 2015 09 09.53652 00 37 56.515 +05 21 05.61 25.1w 15RG280 568 C~2nvp 2015 09 10.47732 00 37 52.602 +05 20 40.96 24.7w 15RG280 568 C~2nvp 2015 09 16.46890 00 37 26.863 +05 17 58.51 24.9w 15RG280 568 C~2nvp 2015 10 03.39699 00 36 09.805 +05 09 44.59 25.0w 15RG280 568 C~2nvp 2015 10 07.36274 00 35 51.444 +05 07 45.20 24.7r 15RG280 568 C~2nvp 2015 10 07.41585 00 35 51.201 +05 07 43.79 24.5r 15RG280 568 C~2nvp 2015 11 07.26021 00 33 40.263 +04 53 13.22 24.8w 15RG280 568 C~2nvp 2015 11 07.31307 00 33 40.064 +04 53 11.95 24.8w 15RG280 568 C~2nvp 2015 11 10.39917 00 33 29.196 +04 51 57.88 25.1w 15RG280 568 C~2nvp 2015 12 07.33665 00 32 23.482 +04 44 04.29 25.5w 15RG280 568 C~2nvp 2016 09 05.50258 00 43 39.039 +05 54 43.37 25.3w 15RG280 568 C~2nvp 2016 09 06.45678 00 43 35.241 +05 54 19.57 25.3w 15RG280 568 C~2nvp 2016 09 06.49805 00 43 35.069 +05 54 18.79 25.1w 15RG280 568 C~2nvp 2016 09 26.55282 00 42 07.864 +05 45 08.69 24.9w 15RG280 568 C~2nvp 2016 11 03.42622 00 39 20.043 +05 26 51.93 25.3w 15RG280 568 C~2nvp 2016 11 03.49128 00 39 19.797 +05 26 50.04 24.7w 15RG280 568 C~2nvp 2016 11 04.27124 00 39 16.815 +05 26 30.07 25.0w 15RG280 568 C~2nvp 2016 11 04.33051 00 39 16.579 +05 26 28.62 25.0w 15RG280 568 C~2nvp 2016 12 29.26796 00 37 38.587 +05 14 15.88 25.4w 15RG280 568 C~2nvp 2017 01 03.23891 00 37 43.013 +05 14 32.76 25.3w 15RG280 568 C~2nvp 2017 09 15.43089 00 48 28.612 +06 22 35.34 24.4w 15RG280 568 C~2nvp 2017 09 16.51398 00 48 23.930 +06 22 06.23 24.6w 15RG280 568 C~2nvp 2017 09 22.46739 00 47 57.613 +06 19 21.05 25.1w 15RG280 568 C~2nvp 2017 09 22.49605 00 47 57.488 +06 19 20.04 24.6w 15RG280 568 C~2nvp
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 -0.09
2 0.0629 -558.60 0.32 27.21 -0.03
3 0.1393 -2071.05 -0.14 47.46 -0.06
4 0.1396 -2078.03 0.02 47.60 -0.02
5 0.1397 -2081.04 -0.12 47.70 0.05
6 0.1423 -2146.28 -0.06 48.00 -0.01
7 0.1449 -2209.71 0.03 48.27 -0.03
8 0.1613 -2627.10 -0.02 49.84 0.08
9 0.2077 -3879.96 -0.12 48.07 0.10
10 0.2185 -4179.23 -0.09 46.20 -0.07
11 0.2187 -4183.13 0.09 46.33 0.06
12 0.3031 -6325.84 0.09 16.50 -0.08
13 0.3033 -6329.08 0.05 16.51 -0.03
14 0.3117 -6507.72 -0.06 12.46 0.32
15 0.3855 -7598.41 -0.02 -35.39 0.07
16 1.1334 3348.95 -0.01 -97.11 -0.00
17 1.1360 3287.48 -0.19 -96.90 -0.15
18 1.1361 3284.81 -0.14 -96.62 0.09
19 1.1910 1871.78 0.02 -94.58 -0.08
20 1.2947 -862.98 0.01 -122.86 -0.04
21 1.2949 -867.10 0.06 -123.16 -0.27
22 1.2970 -915.90 0.03 -124.07 -0.07
23 1.2972 -919.71 -0.01 -124.02 0.02
24 1.4476 -2553.48 -0.05 -223.70 0.05
25 1.4612 -2486.04 0.12 -234.14 -0.03
26 2.1599 7981.47 0.11 -238.59 -0.01
27 2.1628 7905.74 0.08 -238.31 0.10
28 2.1791 7479.45 -0.06 -238.12 0.18
29 2.1792 7477.34 -0.05 -238.32 -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.
15RG280 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.924 42.936 42.912 ecceobj 0.062 0.062 0.061 incobj 1.904 1.904 1.904 qmin 39.017 38.949 39.026 qmax 46.617 46.658 46.527 amean 42.695 42.691 42.672 amin 42.356 42.361 42.345 amax 43.053 43.052 43.037 emean 0.062 0.064 0.062 emin 0.038 0.041 0.037 emax 0.083 0.085 0.082 imean 4.162 4.229 4.145 imin 2.869 2.931 2.834 imax 5.069 5.279 5.079 excite_mean 0.096 0.098 0.096 fracstop 1.000 1.000 1.000 cjmean 3.075 3.074 3.074 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 185.6 182.0 185.4 kozaiamp 180.0 180.0 180.0