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: 15GB59
# Created Wed May 8 01:17:06 2024
# Orbit generated from Bernstein formalism
# Fitting 29 observations of 29
# Arc: 2.35y
# First observation: 2015/02/17
# Last observation: 2017/06/25
Preliminary a, adot, b, bdot, g, gdot:
-0.000100 0.026146 0.000005 -0.001821 0.025332 0.000000
# Chi-squared of fit: 3.69 DOF: 52 RMS: 0.06
# Min/Max residuals: -0.13 0.16
# Exact a, adot, b, bdot, g, gdot:
1.577598E-05 2.604332E-02 -9.437146E-07 -1.812797E-03 2.537731E-02 -2.663063E-04
# Covariance matrix:
1.7787E-13 4.0663E-15 4.5703E-16 -6.8113E-15 1.3265E-13 2.1469E-12
4.0663E-15 3.8812E-13 5.4273E-15 -3.3329E-14 2.4601E-13 1.0161E-11
4.5703E-16 5.4273E-15 1.0313E-13 -7.9968E-14 3.5519E-15 2.2956E-13
-6.8113E-15 -3.3329E-14 -7.9968E-14 1.2322E-13 -2.6424E-14 -1.3285E-12
1.3265E-13 2.4601E-13 3.5519E-15 -2.6424E-14 2.8990E-13 8.1369E-12
2.1469E-12 1.0161E-11 2.2956E-13 -1.3285E-12 8.1369E-12 4.0361E-10
# lat0 lon0 xBary yBary zBary JD0
2.357215 -153.041616 0.841280 0.021232 -0.512444 2457071.101558
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 339.94552 +/- 0.470
Argument of Peri: 172.81151 +/- 0.559
Long of Asc Node: 56.30649 +/- 0.005
Inclination: 4.56828 +/- 0.001
Eccentricity: 0.07856622 +/- 0.0003
Semi-Major Axis: 43.07289661 +/- 0.0031
Time of Perihelion: 2462822.4290 +/- 134.9
Perihelion: 39.68882211 +/- 0.0136
Aphelion: 46.45697112 +/- 0.0137
Period (y) 282.6925 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -35.93490086 +/- 0.0007
Ecliptic Y -17.33160155 +/- 0.0004
Ecliptic Z 1.62068780 +/- 0.0000
Ecliptic XDOT 0.00128853 +/- 0.0000
Ecliptic YDOT -0.00250059 +/- 0.0000
Ecliptic ZDOT -0.00019650 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 39.92903882 +/- 0.0007
Geocenter to KBO 39.40527235 +/- 0.0008
# Hcoef: 8.39
The following table shows the complete astrometric record for 15GB59. 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 (15GB59) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.60078 13 43 29.744 -08 11 20.91 24.5r 15GB59 568 C~2nvc 2015 02 17.64179 13 43 29.659 -08 11 20.32 24.4r 15GB59 568 C~2nvc 2015 02 20.63493 13 43 23.413 -08 10 37.84 24.3r 15GB59 568 C~2nvc 2015 03 18.57924 13 42 00.805 -08 02 04.08 24.2r 15GB59 568 C~2nvc 2015 03 18.62665 13 42 00.613 -08 02 02.92 24.5r 15GB59 568 C~2nvc 2015 03 20.58351 13 41 52.667 -08 01 15.73 24.3r 15GB59 568 C~2nvc 2015 04 11.51839 13 40 13.890 -07 51 47.95 24.8r 15GB59 568 C~2nvc 2015 04 13.38199 13 40 05.010 -07 50 58.29 24.6r 15GB59 568 C~2nvc 2015 04 13.44320 13 40 04.704 -07 50 56.70 24.6r 15GB59 568 C~2nvc 2015 04 13.52553 13 40 04.302 -07 50 54.54 24.5r 15GB59 568 C~2nvc 2015 04 19.49336 13 39 35.743 -07 48 16.23 24.0r 15GB59 568 C~2nvc 2015 04 19.54045 13 39 35.502 -07 48 15.12 24.4r 15GB59 568 C~2nvc 2015 06 20.29539 13 35 49.969 -07 29 43.38 24.7r 15GB59 568 C~2nvc 2015 06 20.33619 13 35 49.893 -07 29 43.04 24.5r 15GB59 568 C~2nvc 2015 06 22.34024 13 35 46.723 -07 29 33.78 24.3r 15GB59 568 C~2nvc 2015 07 14.29246 13 35 35.212 -07 30 10.71 24.2r 15GB59 568 C~2nvc 2015 07 20.28549 13 35 39.723 -07 31 05.83 24.3r 15GB59 568 C~2nvc 2016 02 04.62240 13 49 15.936 -08 51 12.42 24.7w 15GB59 568 C~2nvc 2016 02 11.60562 13 49 09.440 -08 50 18.73 24.6w 15GB59 568 C~2nvc 2016 03 11.61299 13 47 57.031 -08 42 37.10 24.8w 15GB59 568 C~2nvc 2016 04 09.46287 13 45 53.646 -08 30 49.95 24.4w 15GB59 568 C~2nvc 2016 05 02.35180 13 44 04.744 -08 21 01.88 24.6w 15GB59 568 C~2nvc 2016 05 07.35515 13 43 41.939 -08 19 03.25 24.5w 15GB59 568 C~2nvc 2016 05 29.33555 13 42 14.153 -08 11 48.28 24.3w 15GB59 568 C~2nvc 2016 06 04.39796 13 41 54.761 -08 10 20.00 24.3w 15GB59 568 C~2nvc 2016 06 27.32960 13 41 06.776 -08 07 21.59 24.4w 15GB59 568 C~2nvc 2016 07 07.31994 13 40 59.920 -08 07 28.04 24.6w 15GB59 568 C~2nvc 2017 03 30.49709 13 52 16.145 -09 13 23.83 15GB59 568 C~2nvc 2017 06 25.27772 13 46 39.080 -08 45 22.22 24.7w 15GB59 568 C~2nvc
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 0.09 0.00 -0.04
2 0.0001 -1.39 0.06 0.10 -0.01
3 0.0083 -103.19 0.01 6.54 0.02
4 0.0793 -1432.60 -0.02 46.13 -0.04
5 0.0795 -1435.68 -0.00 46.19 -0.01
6 0.0848 -1562.78 0.04 47.85 0.05
7 0.1449 -3136.45 0.13 49.96 0.03
8 0.1500 -3277.46 0.04 48.77 -0.00
9 0.1502 -3282.28 -0.06 48.62 -0.08
10 0.1504 -3288.63 -0.07 48.48 -0.13
11 0.1667 -3741.69 0.03 43.26 0.12
12 0.1668 -3745.43 -0.09 43.00 -0.07
13 0.3359 -7276.08 0.03 -132.38 0.01
14 0.3360 -7277.25 -0.08 -132.48 0.10
15 0.3415 -7324.61 0.07 -140.94 0.04
16 0.4016 -7470.95 -0.08 -237.49 0.07
17 0.4180 -7388.34 -0.02 -264.55 -0.02
18 0.9638 5652.08 -0.08 -403.75 -0.01
19 0.9829 5542.94 -0.07 -387.69 -0.04
20 1.0623 4374.86 0.03 -337.36 0.08
21 1.1413 2412.54 -0.09 -328.31 -0.06
22 1.2040 693.11 -0.04 -356.44 0.01
23 1.2177 334.61 0.03 -366.84 -0.02
24 1.2779 -1037.86 0.16 -427.98 0.03
25 1.2944 -1338.29 0.04 -448.96 -0.09
26 1.3572 -2067.37 -0.12 -538.52 0.06
27 1.3846 -2160.06 0.01 -581.15 0.03
28 2.1133 8623.65 0.00 -705.00 0.02
29 2.3509 3353.25 0.07 -903.09 -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.
15GB59 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.661 42.669 42.654 ecceobj 0.071 0.071 0.071 incobj 4.578 4.578 4.577 qmin 39.144 39.118 39.147 qmax 46.983 46.982 46.963 amean 42.951 42.959 42.944 amin 42.611 42.628 42.611 amax 43.308 43.310 43.300 emean 0.064 0.064 0.064 emin 0.044 0.043 0.043 emax 0.085 0.085 0.085 imean 2.722 2.726 2.719 imin 1.667 1.678 1.659 imax 3.800 3.800 3.799 excite_mean 0.080 0.080 0.080 fracstop 1.000 1.000 1.000 cjmean 3.081 3.081 3.081 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 192.1 191.6 192.0 kozaiamp 180.0 179.9 180.0