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: 15GH58
# Created Wed May 8 01:17:05 2024
# Orbit generated from Bernstein formalism
# Fitting 36 observations of 36
# Arc: 2.25y
# First observation: 2015/02/17
# Last observation: 2017/05/18
Preliminary a, adot, b, bdot, g, gdot:
-0.000094 0.023618 0.000003 -0.000468 0.023926 0.000000
# Chi-squared of fit: 5.15 DOF: 66 RMS: 0.07
# Min/Max residuals: -0.28 0.13
# Exact a, adot, b, bdot, g, gdot:
1.562153E-05 2.353321E-02 -3.904524E-07 -4.666047E-04 2.399078E-02 3.735059E-04
# Covariance matrix:
1.6091E-13 -2.4287E-14 -1.9808E-16 -1.0859E-15 1.0256E-13 1.6595E-12
-2.4287E-14 2.6192E-13 2.9797E-16 -4.6302E-15 1.6244E-13 6.4429E-12
-1.9808E-16 2.9797E-16 1.0145E-13 -7.7315E-14 -5.2104E-17 1.4710E-14
-1.0859E-15 -4.6302E-15 -7.7315E-14 9.8398E-14 -4.1069E-15 -1.8648E-13
1.0256E-13 1.6244E-13 -5.2104E-17 -4.1069E-15 2.2019E-13 5.8900E-12
1.6595E-12 6.4429E-12 1.4710E-14 -1.8648E-13 5.8900E-12 2.5798E-10
# lat0 lon0 xBary yBary zBary JD0
1.918374 -155.761237 0.816158 0.018617 -0.551673 2457071.085238
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 357.65916 +/- 1.135
Argument of Peri: 122.63326 +/- 1.215
Long of Asc Node: 82.97898 +/- 0.017
Inclination: 2.18870 +/- 0.000
Eccentricity: 0.03319702 +/- 0.0000
Semi-Major Axis: 43.69398760 +/- 0.0024
Time of Perihelion: 2457756.4631 +/- 332.7
Perihelion: 42.24347752 +/- 0.0030
Aphelion: 45.14449768 +/- 0.0032
Period (y) 288.8290 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.82787971 +/- 0.0007
Ecliptic Y -16.58521600 +/- 0.0003
Ecliptic Z 1.39534180 +/- 0.0000
Ecliptic XDOT 0.00105844 +/- 0.0000
Ecliptic YDOT -0.00247266 +/- 0.0000
Ecliptic ZDOT -0.00005170 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.24477022 +/- 0.0007
Geocenter to KBO 41.68267362 +/- 0.0008
# Hcoef: 7.52
The following table shows the complete astrometric record for 15GH58. 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 (15GH58) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.58446 13 32 37.425 -07 36 50.40 23.9r 15GH58 568 C~2nvZ 2015 02 17.62541 13 32 37.335 -07 36 49.86 23.7r 15GH58 568 C~2nvZ 2015 02 20.61856 13 32 30.720 -07 36 04.43 23.3r 15GH58 568 C~2nvZ 2015 03 18.56291 13 31 07.789 -07 27 14.09 23.7r 15GH58 568 C~2nvZ 2015 03 18.60407 13 31 07.622 -07 27 13.11 23.9r 15GH58 568 C~2nvZ 2015 03 20.56704 13 30 59.834 -07 26 25.25 23.7r 15GH58 568 C~2nvZ 2015 04 11.50134 13 29 24.871 -07 16 56.30 23.4r 15GH58 568 C~2nvZ 2015 04 13.36562 13 29 16.454 -07 16 06.98 23.8r 15GH58 568 C~2nvZ 2015 04 13.40656 13 29 16.263 -07 16 05.90 23.7r 15GH58 568 C~2nvZ 2015 04 13.50913 13 29 15.791 -07 16 03.14 23.7r 15GH58 568 C~2nvZ 2015 04 19.40635 13 28 49.142 -07 13 28.17 23.8r 15GH58 568 C~2nvZ 2015 05 18.32905 13 26 48.627 -07 02 12.82 23.9r 15GH58 568 C~2nvZ 2015 06 20.27906 13 25 23.725 -06 55 12.81 24.1r 15GH58 568 C~2nvZ 2015 06 20.31989 13 25 23.664 -06 55 12.52 24.0r 15GH58 568 C~2nvZ 2015 06 22.32371 13 25 21.085 -06 55 03.26 23.8r 15GH58 568 C~2nvZ 2015 07 14.27603 13 25 15.070 -06 55 36.64 23.8r 15GH58 568 C~2nvZ 2015 07 20.26893 13 25 20.661 -06 56 28.72 23.8r 15GH58 568 C~2nvZ 2016 02 04.56733 13 37 58.676 -08 10 14.10 24.3w 15GH58 568 C~2nvZ 2016 02 10.55526 13 37 52.029 -08 09 20.58 23.3w 15GH58 568 C~2nvZ 2016 02 10.60492 13 37 51.958 -08 09 20.07 23.6w 15GH58 568 C~2nvZ 2016 02 11.57713 13 37 50.571 -08 09 09.80 24.1w 15GH58 568 C~2nvZ 2016 03 11.55250 13 36 35.702 -08 00 59.22 23.1w 15GH58 568 C~2nvZ 2016 03 12.47618 13 36 32.417 -08 00 38.59 24.0w 15GH58 568 C~2nvZ 2016 04 03.43722 13 35 02.896 -07 51 39.45 24.1w 15GH58 568 C~2nvZ 2016 04 09.41701 13 34 36.162 -07 49 02.90 23.8w 15GH58 568 C~2nvZ 2016 05 28.29624 13 31 15.919 -07 30 32.67 24.4w 15GH58 568 C~2nvZ 2016 05 28.30839 13 31 15.878 -07 30 32.37 24.3w 15GH58 568 C~2nvZ 2016 05 29.31531 13 31 12.795 -07 30 16.71 24.2w 15GH58 568 C~2nvZ 2016 06 04.37369 13 30 55.622 -07 28 50.87 24.0w 15GH58 568 C~2nvZ 2016 06 27.33366 13 30 15.189 -07 25 58.70 24.4w 15GH58 568 C~2nvZ 2016 06 27.34232 13 30 15.180 -07 25 58.45 24.3w 15GH58 568 C~2nvZ 2016 07 07.32400 13 30 11.041 -07 26 05.28 24.1w 15GH58 568 C~2nvZ 2016 07 07.33209 13 30 11.033 -07 26 05.32 24.0w 15GH58 568 C~2nvZ 2017 02 24.64707 13 42 26.498 -08 36 50.92 15GH58 568 C~2nvZ 2017 03 29.46871 13 40 31.727 -08 25 08.69 23.9w 15GH58 568 C~2nvZ 2017 05 18.26658 13 36 55.609 -08 04 55.03 23.9w 15GH58 568 C~2nvZ
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 0.02
2 0.0001 -1.44 -0.02 0.01 -0.04
3 0.0083 -109.60 -0.02 6.30 -0.03
4 0.0793 -1451.42 -0.03 47.95 0.05
5 0.0795 -1454.09 -0.05 47.95 0.02
6 0.0848 -1579.41 0.01 49.99 0.02
7 0.1449 -3102.55 -0.05 60.43 0.04
8 0.1500 -3237.18 -0.00 60.25 0.01
9 0.1501 -3240.22 -0.04 60.21 -0.01
10 0.1504 -3247.77 -0.04 60.19 0.04
11 0.1665 -3673.63 0.09 58.44 0.08
12 0.2457 -5590.99 0.04 25.39 -0.11
13 0.3359 -6922.07 0.12 -51.15 -0.03
14 0.3360 -6923.02 0.07 -51.22 0.03
15 0.3415 -6962.17 -0.02 -56.81 -0.00
16 0.4016 -7033.14 -0.06 -120.98 -0.15
17 0.4180 -6936.42 -0.01 -138.60 0.04
18 0.9637 5176.16 -0.01 -126.30 0.01
19 0.9801 5064.70 0.05 -112.25 0.10
20 0.9802 5063.53 0.07 -112.16 0.10
21 0.9829 5040.60 0.01 -110.06 -0.02
22 1.0622 3825.90 -0.08 -57.04 -0.28
23 1.0647 3772.93 0.13 -55.57 -0.05
24 1.1249 2337.64 0.00 -37.82 0.02
25 1.1412 1910.60 0.07 -36.95 0.03
26 1.2750 -1266.10 0.06 -92.47 -0.01
27 1.2751 -1266.78 -0.02 -92.41 0.08
28 1.2778 -1315.18 0.03 -94.65 0.02
29 1.2944 -1584.27 0.00 -108.47 0.02
30 1.3573 -2206.91 0.03 -169.03 -0.08
31 1.3573 -2207.13 -0.08 -168.84 0.13
32 1.3846 -2261.89 -0.05 -197.81 0.01
33 1.3847 -2261.99 -0.15 -197.89 -0.04
34 2.0207 9464.49 -0.10 -177.88 -0.00
35 2.1106 7620.05 -0.02 -137.33 -0.05
36 2.2469 4187.21 0.09 -169.21 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.
15GH58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.283 43.290 43.275 ecceobj 0.024 0.024 0.024 incobj 2.189 2.189 2.189 qmin 41.623 41.603 41.611 qmax 45.654 45.712 45.644 amean 43.562 43.570 43.555 amin 43.225 43.236 43.223 amax 43.905 43.917 43.896 emean 0.024 0.024 0.024 emin 0.007 0.006 0.006 emax 0.040 0.041 0.040 imean 0.763 0.762 0.763 imin 0.333 0.328 0.339 imax 1.100 1.101 1.099 excite_mean 0.028 0.028 0.027 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 201.4 200.5 201.9 kozaiamp 179.9 180.0 180.0