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: 15GL58
# Created Wed May 8 01:17:05 2024
# Orbit generated from Bernstein formalism
# Fitting 29 observations of 29
# Arc: 2.25y
# First observation: 2015/02/17
# Last observation: 2017/05/18
Preliminary a, adot, b, bdot, g, gdot:
-0.000110 0.023960 0.000001 0.000279 0.023967 0.000000
# Chi-squared of fit: 6.58 DOF: 52 RMS: 0.08
# Min/Max residuals: -0.18 0.33
# Exact a, adot, b, bdot, g, gdot:
1.554766E-05 2.379376E-02 1.963063E-07 2.753904E-04 2.400915E-02 -3.370933E-04
# Covariance matrix:
2.1329E-13 -3.1785E-14 -7.3375E-16 8.3693E-16 1.3538E-13 1.3801E-12
-3.1785E-14 3.6340E-13 -2.5802E-15 6.8543E-15 1.9669E-13 8.8448E-12
-7.3375E-16 -2.5802E-15 1.1433E-13 -7.9620E-14 -2.2140E-15 -8.5603E-14
8.3693E-16 6.8543E-15 -7.9620E-14 9.8966E-14 4.6522E-15 2.3007E-13
1.3538E-13 1.9669E-13 -2.2140E-15 4.6522E-15 2.5658E-13 6.3350E-12
1.3801E-12 8.8448E-12 -8.5603E-14 2.3007E-13 6.3350E-12 2.9616E-10
# lat0 lon0 xBary yBary zBary JD0
1.873971 -155.082878 0.822636 0.017873 -0.541991 2457071.085238
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 331.03982 +/- 0.526
Argument of Peri: 101.99615 +/- 0.610
Long of Asc Node: 134.43643 +/- 0.021
Inclination: 1.97617 +/- 0.000
Eccentricity: 0.06165891 +/- 0.0004
Semi-Major Axis: 44.56441658 +/- 0.0034
Time of Perihelion: 2465811.8695 +/- 158.9
Perihelion: 41.81662312 +/- 0.0176
Aphelion: 47.31221004 +/- 0.0177
Period (y) 297.5024 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.59479835 +/- 0.0008
Ecliptic Y -17.02077398 +/- 0.0004
Ecliptic Z 1.36203849 +/- 0.0000
Ecliptic XDOT 0.00117525 +/- 0.0000
Ecliptic YDOT -0.00244968 +/- 0.0000
Ecliptic ZDOT 0.00003022 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.20332161 +/- 0.0007
Geocenter to KBO 41.65079430 +/- 0.0009
# Hcoef: 7.81
The following table shows the complete astrometric record for 15GL58. 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 (15GL58) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.58446 13 35 06.384 -07 54 10.28 23.9r 15GL58 568 C~2nvZ 2015 02 17.62541 13 35 06.292 -07 54 09.67 24.0r 15GL58 568 C~2nvZ 2015 02 20.61856 13 34 59.878 -07 53 24.37 24.5r 15GL58 568 C~2nvZ 2015 03 20.56704 13 33 30.426 -07 43 44.67 23.7r 15GL58 568 C~2nvZ 2015 04 11.50134 13 31 56.025 -07 34 11.93 23.3r 15GL58 568 C~2nvZ 2015 04 13.36562 13 31 47.620 -07 33 22.06 24.1r 15GL58 568 C~2nvZ 2015 04 13.40656 13 31 47.424 -07 33 20.94 24.0r 15GL58 568 C~2nvZ 2015 04 13.50913 13 31 46.961 -07 33 18.18 24.2r 15GL58 568 C~2nvZ 2015 04 19.40635 13 31 20.346 -07 30 41.60 24.2r 15GL58 568 C~2nvZ 2015 05 18.32905 13 29 19.514 -07 19 13.57 24.1r 15GL58 568 C~2nvZ 2015 06 20.27906 13 27 53.474 -07 11 53.01 24.4r 15GL58 568 C~2nvZ 2015 06 20.31989 13 27 53.415 -07 11 52.79 24.3r 15GL58 568 C~2nvZ 2015 06 22.32371 13 27 50.756 -07 11 42.11 24.3r 15GL58 568 C~2nvZ 2015 07 14.27603 13 27 43.872 -07 11 59.75 24.0r 15GL58 568 C~2nvZ 2015 07 20.26893 13 27 49.198 -07 12 47.23 24.1r 15GL58 568 C~2nvZ 2016 02 04.59812 13 40 34.386 -08 25 22.83 24.2w 15GL58 568 C~2nvZ 2016 02 10.61713 13 40 28.141 -08 24 29.18 24.4w 15GL58 568 C~2nvZ 2016 03 11.60082 13 39 13.613 -08 16 06.33 24.3w 15GL58 568 C~2nvZ 2016 04 03.45339 13 37 41.669 -08 06 44.35 24.4w 15GL58 568 C~2nvZ 2016 04 09.43453 13 37 15.026 -08 04 06.43 24.4w 15GL58 568 C~2nvZ 2016 05 02.32746 13 35 32.675 -07 54 15.68 24.1w 15GL58 568 C~2nvZ 2016 05 28.30028 13 33 54.196 -07 45 16.62 24.3w 15GL58 568 C~2nva 2016 06 04.37773 13 33 33.643 -07 43 30.90 24.2w 15GL58 568 C~2nva 2016 06 27.33366 13 32 52.265 -07 40 24.17 23.0w 15GL58 568 C~2nva 2016 07 07.32400 13 32 47.658 -07 40 24.12 24.4w 15GL58 568 C~2nva 2017 03 29.46871 13 43 18.714 -08 38 04.65 24.5w 15GL58 568 C~2nva 2017 03 29.47811 13 43 18.679 -08 38 04.19 24.2w 15GL58 568 C~2nva 2017 03 29.49962 13 43 18.573 -08 38 03.81 24.2w 15GL58 568 C~2nva 2017 05 18.26658 13 39 42.417 -08 17 34.63 24.3w 15GL58 568 C~2nva
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 0.03 0.00 -0.00
2 0.0001 -1.50 -0.06 0.07 -0.02
3 0.0083 -106.75 -0.01 7.55 0.03
4 0.0848 -1555.97 -0.08 62.54 -0.02
5 0.1449 -3071.82 0.11 82.67 0.03
6 0.1500 -3206.41 0.01 83.34 -0.00
7 0.1501 -3209.53 -0.11 83.32 -0.02
8 0.1504 -3216.95 0.00 83.37 0.04
9 0.1665 -3642.69 0.10 84.16 -0.07
10 0.2457 -5568.08 0.07 65.00 0.05
11 0.3359 -6921.88 -0.08 3.93 0.03
12 0.3360 -6922.78 -0.05 3.81 0.02
13 0.3415 -6963.55 -0.12 -0.82 0.01
14 0.4016 -7052.41 0.33 -54.97 -0.17
15 0.4180 -6961.14 -0.13 -69.95 -0.01
16 0.9638 5218.82 -0.03 21.09 -0.00
17 0.9802 5112.97 0.10 37.67 -0.03
18 1.0623 3899.31 0.04 106.68 0.16
19 1.1249 2423.00 -0.04 135.90 0.05
20 1.1413 1996.95 0.02 139.48 0.02
21 1.2040 365.78 -0.03 137.19 -0.02
22 1.2751 -1193.46 -0.03 105.88 0.00
23 1.2944 -1516.48 -0.02 92.82 -0.07
24 1.3573 -2157.31 0.14 41.99 0.06
25 1.3846 -2221.08 -0.18 17.00 -0.02
26 2.1106 7769.81 0.01 188.65 -0.12
27 2.1106 7769.16 0.01 188.90 0.12
28 2.1107 7767.56 -0.11 188.69 -0.10
29 2.2469 4330.02 0.11 179.03 0.05
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.
15GL58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.135 44.144 44.126 ecceobj 0.055 0.055 0.055 incobj 1.979 1.979 1.979 qmin 41.261 41.275 41.244 qmax 47.849 47.868 47.755 amean 44.431 44.440 44.423 amin 44.082 44.084 44.069 amax 44.799 44.809 44.785 emean 0.053 0.053 0.053 emin 0.038 0.038 0.038 emax 0.068 0.068 0.067 imean 1.468 1.467 1.469 imin 0.889 0.889 0.889 imax 2.018 2.015 2.019 excite_mean 0.060 0.060 0.060 fracstop 1.000 1.000 1.000 cjmean 3.102 3.103 3.102 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 165.8 166.3 165.7 kozaiamp 180.0 180.0 180.0