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: 15GO58
# Created Sun Nov 24 02:10:18 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 32
# Arc: 2.03y
# First observation: 2015/02/17
# Last observation: 2017/02/27
Preliminary a, adot, b, bdot, g, gdot:
-0.000103 0.022655 0.000004 0.001207 0.023368 0.000000
# Chi-squared of fit: 5.07 DOF: 58 RMS: 0.07
# Min/Max residuals: -0.16 0.21
# Exact a, adot, b, bdot, g, gdot:
1.518296E-05 2.258894E-02 7.358283E-07 1.206471E-03 2.342700E-02 1.289339E-03
# Covariance matrix:
1.8562E-13 -9.5358E-15 -2.6165E-15 6.0208E-15 1.4612E-13 2.4806E-12
-9.5358E-15 3.0469E-13 -4.9438E-15 1.7068E-14 1.8990E-13 7.4275E-12
-2.6165E-15 -4.9438E-15 9.8798E-14 -8.0718E-14 -5.9875E-15 -1.9578E-13
6.0208E-15 1.7068E-14 -8.0718E-14 1.2302E-13 1.6994E-14 6.9538E-13
1.4612E-13 1.8990E-13 -5.9875E-15 1.6994E-14 2.8567E-13 7.2252E-12
2.4806E-12 7.4275E-12 -1.9578E-13 6.9538E-13 7.2252E-12 3.0351E-10
# lat0 lon0 xBary yBary zBary JD0
2.954399 -155.510910 0.818522 0.028408 -0.547739 2457071.089318
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 53.03422 +/- 0.401
Argument of Peri: 345.60502 +/- 0.485
Long of Asc Node: 160.22380 +/- 0.008
Inclination: 4.25776 +/- 0.001
Eccentricity: 0.04862388 +/- 0.0007
Semi-Major Axis: 44.47403877 +/- 0.0040
Time of Perihelion: 2441111.2691 +/- 120.7
Perihelion: 42.31153857 +/- 0.0302
Aphelion: 46.63653896 +/- 0.0302
Period (y) 296.5979 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.63534209 +/- 0.0009
Ecliptic Y -17.15305433 +/- 0.0004
Ecliptic Z 2.20010910 +/- 0.0001
Ecliptic XDOT 0.00096031 +/- 0.0000
Ecliptic YDOT -0.00246736 +/- 0.0000
Ecliptic ZDOT 0.00014867 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.24382147 +/- 0.0008
Geocenter to KBO 42.68579825 +/- 0.0010
# Hcoef: 8.07
The following table shows the complete astrometric record for 15GO58. 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 (15GO58) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.58854 13 35 05.272 -06 44 27.17 24.3r 15GO58 568 C~2nva 2015 02 17.62949 13 35 05.185 -06 44 26.51 24.5r 15GO58 568 C~2nva 2015 02 20.62266 13 34 58.914 -06 43 36.24 24.4r 15GO58 568 C~2nva 2015 03 18.56698 13 33 39.300 -06 34 13.62 24.3r 15GO58 568 C~2nva 2015 03 18.60819 13 33 39.145 -06 34 12.49 24.1r 15GO58 568 C~2nva 2015 03 18.61429 13 33 39.118 -06 34 12.42 24.4r 15GO58 568 C~2nva 2015 03 20.57112 13 33 31.613 -06 33 22.96 24.1r 15GO58 568 C~2nva 2015 04 11.50547 13 31 59.590 -06 23 41.28 24.3r 15GO58 568 C~2nva 2015 04 13.36971 13 31 51.396 -06 22 51.40 24.5r 15GO58 568 C~2nva 2015 04 13.41068 13 31 51.216 -06 22 50.16 24.5r 15GO58 568 C~2nva 2015 04 13.51324 13 31 50.765 -06 22 47.45 24.0r 15GO58 568 C~2nva 2015 04 19.41044 13 31 24.824 -06 20 11.18 24.2r 15GO58 568 C~2nva 2015 04 19.52742 13 31 24.295 -06 20 08.21 24.5r 15GO58 568 C~2nva 2015 05 18.33311 13 29 27.057 -06 08 58.15 24.4r 15GO58 568 C~2nva 2015 06 20.28316 13 28 03.058 -06 02 09.82 24.4r 15GO58 568 C~2nva 2015 06 20.32394 13 28 02.996 -06 02 09.41 24.6r 15GO58 568 C~2nva 2015 06 22.32783 13 28 00.393 -06 02 00.92 24.2r 15GO58 568 C~2nva 2015 07 14.28011 13 27 53.449 -06 02 39.23 24.6r 15GO58 568 C~2nva 2016 02 04.57962 13 40 20.707 -07 11 37.40 24.6w 15GO58 568 C~2nva 2016 02 10.56746 13 40 14.583 -07 10 31.73 24.5w 15GO58 568 C~2nva 2016 03 11.54839 13 39 01.875 -07 01 22.28 24.8w 15GO58 568 C~2nva 2016 04 03.44935 13 37 32.173 -06 51 42.76 24.7w 15GO58 568 C~2nva 2016 04 09.43049 13 37 06.240 -06 49 03.44 24.5w 15GO58 568 C~2nva 2016 05 02.31529 13 35 26.722 -06 39 17.80 24.6w 15GO58 568 C~2nva 2016 05 06.32506 13 35 10.140 -06 37 44.40 24.4w 15GO58 568 C~2nva 2016 05 28.29220 13 33 50.878 -06 30 39.53 24.7w 15GO58 568 C~2nva 2016 05 28.30434 13 33 50.843 -06 30 39.43 24.5w 15GO58 568 C~2nva 2016 05 29.31127 13 33 47.807 -06 30 24.16 24.6w 15GO58 568 C~2nva 2016 06 27.28486 13 32 50.548 -06 26 20.14 25.3w 15GO58 568 C~2nva 2016 07 07.28742 13 32 45.956 -06 26 30.94 24.8w 15GO58 568 C~2nva 2017 02 27.63752 13 44 37.962 -07 29 59.10 15GO58 568 C~2nva 2017 02 27.65749 13 44 37.905 -07 29 58.66 15GO58 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 0.01 0.00 0.02
2 0.0001 -1.45 -0.02 0.14 -0.00
3 0.0083 -106.76 0.04 12.90 0.06
4 0.0793 -1416.47 -0.03 103.92 0.00
5 0.0795 -1419.03 -0.00 104.13 0.11
6 0.0795 -1419.43 -0.02 104.05 0.01
7 0.0848 -1541.61 -0.08 109.25 -0.02
8 0.1449 -3031.05 0.03 149.23 -0.05
9 0.1500 -3163.01 -0.09 150.95 -0.16
10 0.1501 -3165.96 -0.09 151.12 -0.00
11 0.1504 -3173.21 0.04 151.18 0.01
12 0.1665 -3590.41 0.01 155.02 0.02
13 0.1668 -3598.84 -0.04 154.90 -0.11
14 0.2457 -5471.83 0.10 137.34 0.07
15 0.3359 -6788.27 0.12 56.80 -0.14
16 0.3360 -6789.28 0.00 56.84 0.04
17 0.3415 -6828.55 0.02 50.46 -0.05
18 0.4016 -6910.88 -0.04 -23.30 0.14
19 0.9637 4968.90 0.14 187.09 -0.01
20 0.9801 4860.11 0.08 215.33 -0.09
21 1.0622 3651.80 -0.03 335.38 0.08
22 1.1249 2196.58 -0.03 390.57 0.03
23 1.1413 1778.82 -0.06 398.62 -0.00
24 1.2039 184.84 0.09 404.55 0.08
25 1.2149 -79.27 -0.05 401.50 0.03
26 1.2750 -1334.01 -0.08 366.24 -0.01
27 1.2751 -1334.53 -0.00 366.14 -0.07
28 1.2778 -1382.23 0.01 363.84 -0.07
29 1.3571 -2265.87 0.10 279.21 0.21
30 1.3845 -2325.64 -0.09 244.13 -0.10
31 2.0289 8940.40 0.02 540.84 -0.04
32 2.0289 8939.44 -0.05 540.95 -0.01
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.
15GO58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.051 44.064 44.038 ecceobj 0.042 0.044 0.041 incobj 4.273 4.273 4.273 qmin 41.468 41.388 41.520 qmax 47.417 47.480 47.287 amean 44.333 44.346 44.320 amin 43.993 44.005 43.981 amax 44.702 44.700 44.676 emean 0.046 0.047 0.044 emin 0.031 0.032 0.029 emax 0.061 0.063 0.059 imean 3.971 3.969 3.972 imin 3.414 3.410 3.413 imax 4.577 4.577 4.581 excite_mean 0.083 0.084 0.082 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 177.9 177.7 177.8 kozaiamp 180.0 179.9 180.0