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: 15GH59
# Created Wed May 8 01:17:06 2024
# Orbit generated from Bernstein formalism
# Fitting 37 observations of 37
# Arc: 2.11y
# First observation: 2015/02/17
# Last observation: 2017/03/30
Preliminary a, adot, b, bdot, g, gdot:
-0.000121 0.022825 0.000006 -0.001785 0.023565 0.000000
# Chi-squared of fit: 18.57 DOF: 68 RMS: 0.13
# Min/Max residuals: -0.51 0.23
# Exact a, adot, b, bdot, g, gdot:
1.407493E-05 2.270498E-02 -1.518980E-06 -1.771353E-03 2.360609E-02 -5.834068E-04
# Covariance matrix:
1.8738E-13 -5.1855E-15 -2.1426E-16 -7.9537E-15 1.5271E-13 3.2160E-12
-5.1855E-15 2.6188E-13 1.7147E-15 -1.9396E-14 1.7537E-13 7.8527E-12
-2.1426E-16 1.7147E-15 9.4171E-14 -8.2466E-14 8.8702E-16 1.2309E-13
-7.9537E-15 -1.9396E-14 -8.2466E-14 1.2585E-13 -2.1421E-14 -1.1593E-12
1.5271E-13 1.7537E-13 8.8702E-16 -2.1421E-14 2.8235E-13 8.6680E-12
3.2160E-12 7.8527E-12 1.2309E-13 -1.1593E-12 8.6680E-12 4.6947E-10
# lat0 lon0 xBary yBary zBary JD0
2.906393 -153.818847 0.834207 0.026722 -0.523628 2457071.105668
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 291.19349 +/- 0.269
Argument of Peri: 220.60327 +/- 0.370
Long of Asc Node: 58.07385 +/- 0.005
Inclination: 5.25787 +/- 0.001
Eccentricity: 0.04516138 +/- 0.0009
Semi-Major Axis: 43.52790417 +/- 0.0044
Time of Perihelion: 2477118.7796 +/- 78.4
Perihelion: 41.56212404 +/- 0.0402
Aphelion: 45.49368431 +/- 0.0403
Period (y) 287.1837 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.80820823 +/- 0.0009
Ecliptic Y -18.14915305 +/- 0.0004
Ecliptic Z 2.14787638 +/- 0.0000
Ecliptic XDOT 0.00120950 +/- 0.0000
Ecliptic YDOT -0.00234352 +/- 0.0000
Ecliptic ZDOT -0.00020852 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.89617880 +/- 0.0008
Geocenter to KBO 42.36195353 +/- 0.0010
# Hcoef: 8.36
The following table shows the complete astrometric record for 15GH59. 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 (15GH59) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.60489 13 41 21.981 -07 23 52.06 24.8r 15GH59 568 C~2nvd 2015 02 17.64586 13 41 21.880 -07 23 51.52 24.7r 15GH59 568 C~2nvd 2015 02 20.63905 13 41 15.794 -07 23 08.07 24.5r 15GH59 568 C~2nvd 2015 03 18.58338 13 39 56.821 -07 14 41.97 24.8r 15GH59 568 C~2nvd 2015 03 18.63265 13 39 56.636 -07 14 40.76 24.8r 15GH59 568 C~2nvd 2015 03 20.58759 13 39 49.097 -07 13 55.39 24.8r 15GH59 568 C~2nvd 2015 04 11.52247 13 38 15.980 -07 04 52.96 24.2r 15GH59 568 C~2nvd 2015 04 13.38609 13 38 07.633 -07 04 06.03 24.6r 15GH59 568 C~2nvd 2015 04 13.44737 13 38 07.360 -07 04 04.46 24.0r 15GH59 568 C~2nvd 2015 04 13.45145 13 38 07.336 -07 04 04.35 24.3r 15GH59 568 C~2nvd 2015 04 13.45555 13 38 07.307 -07 04 04.33 24.5r 15GH59 568 C~2nvd 2015 04 13.52960 13 38 06.984 -07 04 02.37 24.4r 15GH59 568 C~2nvd 2015 04 19.49744 13 37 40.154 -07 01 33.26 24.3r 15GH59 568 C~2nvd 2015 04 19.55519 13 37 39.857 -07 01 31.74 24.8r 15GH59 568 C~2nvd 2015 05 18.34948 13 35 38.731 -06 50 57.64 24.4r 15GH59 568 C~2nvd 2015 06 20.29948 13 34 08.695 -06 44 35.20 24.5r 15GH59 568 C~2nvd 2015 06 20.34029 13 34 08.633 -06 44 34.93 25.2r 15GH59 568 C~2nvd 2015 06 22.34439 13 34 05.657 -06 44 27.65 24.6r 15GH59 568 C~2nvd 2015 07 14.29673 13 33 54.597 -06 45 18.76 25.0r 15GH59 568 C~2nvd 2015 07 20.28959 13 33 58.713 -06 46 14.95 24.6r 15GH59 568 C~2nvd 2016 02 04.60621 13 46 24.575 -07 59 50.90 24.9w 15GH59 568 C~2nvd 2016 02 11.58929 13 46 17.716 -07 58 50.81 24.9w 15GH59 568 C~2nvd 2016 03 11.59678 13 45 07.365 -07 51 03.57 24.6w 15GH59 568 C~2nvd 2016 04 03.46957 13 43 37.019 -07 42 10.83 25.0w 15GH59 568 C~2nvd 2016 04 09.45073 13 43 10.635 -07 39 41.79 24.9w 15GH59 568 C~2nvd 2016 05 01.45743 13 41 32.315 -07 30 48.40 24.9w 15GH59 568 C~2nvd 2016 05 01.46152 13 41 32.289 -07 30 48.83 25.1w 15GH59 568 C~2nvd 2016 05 02.33152 13 41 28.532 -07 30 28.61 25.1w 15GH59 568 C~2nvd 2016 05 02.33557 13 41 28.518 -07 30 28.49 25.7w 15GH59 568 C~2nvd 2016 05 02.36396 13 41 28.371 -07 30 27.98 24.9w 15GH59 568 C~2nvd 2016 05 07.33487 13 41 07.192 -07 28 38.35 24.8w 15GH59 568 C~2nvd 2016 05 07.33893 13 41 07.168 -07 28 38.25 24.7w 15GH59 568 C~2nvd 2016 05 29.33959 13 39 45.135 -07 21 59.42 24.9w 15GH59 568 C~2nvd 2016 06 04.40200 13 39 27.082 -07 20 40.35 24.9w 15GH59 568 C~2nvd 2016 06 27.33817 13 38 42.418 -07 18 11.02 24.7w 15GH59 568 C~2nvd 2016 07 07.32804 13 38 36.067 -07 18 25.46 25.0w 15GH59 568 C~2nvd 2017 03 30.50178 13 48 45.331 -08 17 59.46 24.7w 15GH59 568 C~2nvd
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 0.23 0.00 0.07
2 0.0001 -1.60 -0.02 -0.04 -0.06
3 0.0083 -101.70 -0.01 7.91 0.11
4 0.0793 -1380.11 0.08 56.60 -0.08
5 0.0795 -1383.11 0.13 56.74 0.01
6 0.0848 -1504.12 -0.04 58.58 -0.22
7 0.1449 -2992.54 0.10 63.88 0.01
8 0.1500 -3125.38 -0.01 62.71 -0.05
9 0.1502 -3129.74 0.08 62.70 0.02
10 0.1502 -3130.11 0.00 62.68 -0.01
11 0.1502 -3130.52 -0.11 62.54 -0.14
12 0.1504 -3135.71 0.06 62.63 0.03
13 0.1667 -3562.12 -0.01 57.16 0.12
14 0.1669 -3566.80 -0.51 56.98 0.02
15 0.2457 -5478.52 0.06 -5.57 -0.03
16 0.3359 -6868.14 -0.02 -136.40 -0.03
17 0.3360 -6869.10 0.01 -136.49 0.09
18 0.3415 -6913.09 0.17 -145.83 0.11
19 0.4016 -7048.13 -0.21 -253.41 0.09
20 0.4180 -6970.49 0.07 -283.48 0.06
21 0.9637 4973.96 -0.05 -402.33 -0.03
22 0.9828 4857.27 0.02 -382.59 -0.07
23 1.0623 3713.59 -0.37 -319.99 0.01
24 1.1249 2268.82 -0.04 -303.77 -0.00
25 1.1413 1849.21 -0.06 -305.41 -0.00
26 1.2015 293.25 0.12 -333.12 0.13
27 1.2015 293.04 0.20 -333.66 -0.40
28 1.2039 233.64 0.13 -334.90 0.09
29 1.2039 233.40 0.18 -334.87 0.14
30 1.2040 231.18 -0.08 -335.18 -0.10
31 1.2176 -102.15 0.06 -346.29 0.02
32 1.2176 -102.51 -0.03 -346.32 -0.01
33 1.2778 -1384.46 -0.08 -414.12 0.05
34 1.2944 -1663.48 -0.03 -437.31 0.14
35 1.3572 -2337.12 -0.14 -538.06 -0.13
36 1.3846 -2420.02 0.04 -585.67 0.03
37 2.1133 7316.86 0.07 -674.40 0.02
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.
15GH59 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.131 43.141 43.121 ecceobj 0.045 0.047 0.044 incobj 5.269 5.269 5.269 qmin 40.839 40.771 40.897 qmax 46.178 46.246 46.092 amean 43.415 43.425 43.405 amin 43.083 43.090 43.072 amax 43.759 43.773 43.746 emean 0.037 0.039 0.036 emin 0.018 0.020 0.017 emax 0.056 0.057 0.054 imean 3.651 3.646 3.653 imin 2.846 2.840 2.850 imax 4.414 4.415 4.414 excite_mean 0.074 0.075 0.073 fracstop 1.000 1.000 1.000 cjmean 3.088 3.088 3.088 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 183.5 183.1 183.2 kozaiamp 179.9 180.0 180.0