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: 15GF58
# Created Wed May 8 01:17:05 2024
# Orbit generated from Bernstein formalism
# Fitting 34 observations of 34
# Arc: 2.11y
# First observation: 2015/02/17
# Last observation: 2017/03/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000151 0.025656 0.000005 -0.000695 0.024881 0.000000
# Chi-squared of fit: 3.46 DOF: 62 RMS: 0.06
# Min/Max residuals: -0.19 0.17
# Exact a, adot, b, bdot, g, gdot:
1.627223E-05 2.552651E-02 -3.236644E-07 -6.911371E-04 2.496405E-02 -3.212906E-04
# Covariance matrix:
1.8459E-13 -1.9378E-15 -9.0699E-16 -2.1494E-15 1.4821E-13 2.8922E-12
-1.9378E-15 3.2419E-13 -3.4684E-16 -7.2444E-15 1.8978E-13 8.6589E-12
-9.0699E-16 -3.4684E-16 9.0690E-14 -8.1322E-14 -1.2035E-15 -5.9725E-15
-2.1494E-15 -7.2444E-15 -8.1322E-14 1.3857E-13 -6.3382E-15 -3.5006E-13
1.4821E-13 1.8978E-13 -1.2035E-15 -6.3382E-15 2.6891E-13 7.9375E-12
2.8922E-12 8.6589E-12 -5.9725E-15 -3.5006E-13 7.9375E-12 4.1408E-10
# lat0 lon0 xBary yBary zBary JD0
2.785356 -156.604513 0.807986 0.027541 -0.563207 2457071.081158
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 340.92181 +/- 0.445
Argument of Peri: 141.23778 +/- 0.538
Long of Asc Node: 83.61136 +/- 0.013
Inclination: 3.12813 +/- 0.000
Eccentricity: 0.08545528 +/- 0.0003
Semi-Major Axis: 44.15868728 +/- 0.0036
Time of Perihelion: 2462750.6163 +/- 132.6
Perihelion: 40.38509431 +/- 0.0143
Aphelion: 47.93228025 +/- 0.0145
Period (y) 293.4489 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.56198597 +/- 0.0008
Ecliptic Y -15.36944926 +/- 0.0003
Ecliptic Z 1.94656751 +/- 0.0000
Ecliptic XDOT 0.00113690 +/- 0.0000
Ecliptic YDOT -0.00256243 +/- 0.0000
Ecliptic ZDOT -0.00007733 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.63141501 +/- 0.0007
Geocenter to KBO 40.05760258 +/- 0.0008
# Hcoef: 7.42
The following table shows the complete astrometric record for 15GF58. 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 (15GF58) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.58038 13 30 44.738 -06 29 54.44 23.5r 15GF58 568 C~2nvZ 2015 02 17.62132 13 30 44.646 -06 29 53.77 23.8r 15GF58 568 C~2nvZ 2015 02 20.61441 13 30 37.766 -06 29 03.13 23.5r 15GF58 568 C~2nvZ 2015 03 18.55881 13 29 11.759 -06 19 29.63 23.5r 15GF58 568 C~2nvZ 2015 03 18.59998 13 29 11.590 -06 19 28.55 23.3r 15GF58 568 C~2nvZ 2015 03 20.56294 13 29 03.529 -06 18 37.72 15GF58 568 C~2nvZ 2015 04 11.49722 13 27 25.439 -06 08 42.04 23.3r 15GF58 568 C~2nvZ 2015 04 13.36151 13 27 16.749 -06 07 51.05 23.4r 15GF58 568 C~2nvZ 2015 04 13.40245 13 27 16.549 -06 07 49.89 23.3r 15GF58 568 C~2nvZ 2015 04 13.48799 13 27 16.154 -06 07 47.73 23.7r 15GF58 568 C~2nvZ 2015 04 13.50003 13 27 16.094 -06 07 47.37 23.5r 15GF58 568 C~2nvZ 2015 04 13.50498 13 27 16.069 -06 07 47.12 23.6r 15GF58 568 C~2nvZ 2015 04 19.40228 13 26 48.616 -06 05 07.77 23.5r 15GF58 568 C~2nvZ 2015 04 19.51922 13 26 48.062 -06 05 04.75 23.3r 15GF58 568 C~2nvZ 2015 05 18.27664 13 24 45.183 -05 53 50.20 23.5r 15GF58 568 C~2nvZ 2015 05 18.32493 13 24 45.002 -05 53 49.29 23.5r 15GF58 568 C~2nvZ 2015 06 20.27498 13 23 19.283 -05 47 24.84 23.6r 15GF58 568 C~2nvZ 2015 06 20.31583 13 23 19.223 -05 47 24.68 22.4r 15GF58 568 C~2nvZ 2015 06 22.31959 13 23 16.713 -05 47 18.83 23.5r 15GF58 568 C~2nvZ 2015 07 14.27191 13 23 12.285 -05 48 36.45 23.5r 15GF58 568 C~2nvZ 2015 07 20.26475 13 23 18.567 -05 49 42.75 23.2r 15GF58 568 C~2nvZ 2016 02 04.56329 13 36 30.564 -07 07 02.36 23.6w 15GF58 568 C~2nvZ 2016 02 10.55122 13 36 23.639 -07 05 59.65 23.7w 15GF58 568 C~2nvZ 2016 02 10.60087 13 36 23.572 -07 05 58.94 23.7w 15GF58 568 C~2nvZ 2016 04 03.43317 13 33 28.586 -06 46 57.50 23.7w 15GF58 568 C~2nvZ 2016 04 09.41297 13 33 00.976 -06 44 14.57 23.7w 15GF58 568 C~2nvZ 2016 05 01.36453 13 31 19.708 -06 34 40.02 24.3w 15GF58 568 C~2nvZ 2016 05 02.30717 13 31 15.541 -06 34 17.10 23.7w 15GF58 568 C~2nvZ 2016 05 06.31695 13 30 58.102 -06 32 42.46 24.0w 15GF58 568 C~2nvZ 2016 05 28.27195 13 29 35.366 -06 25 37.81 23.9w 15GF58 568 C~2nvZ 2016 06 04.35340 13 29 14.726 -06 24 02.32 23.7w 15GF58 568 C~2nvZ 2016 06 27.27271 13 28 34.360 -06 21 42.34 23.8w 15GF58 568 C~2nvZ 2016 07 06.30847 13 28 30.690 -06 22 03.08 24.0w 15GF58 568 C~2nvZ 2017 03 29.47339 13 39 22.723 -07 24 00.05 23.1w 15GF58 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 -1.52 -0.01 0.12 -0.02
3 0.0083 -115.49 -0.00 9.54 0.01
4 0.0793 -1518.64 0.02 71.28 -0.04
5 0.0795 -1521.38 0.03 71.36 -0.01
6 0.0848 -1651.84 0.07 74.37 0.01
7 0.1449 -3231.32 0.04 89.04 0.11
8 0.1500 -3370.63 -0.10 88.61 0.03
9 0.1501 -3373.83 -0.19 88.59 0.04
10 0.1503 -3380.10 0.03 88.43 -0.06
11 0.1504 -3381.07 -0.02 88.43 -0.05
12 0.1504 -3381.50 -0.08 88.53 0.05
13 0.1665 -3821.00 0.05 85.50 0.07
14 0.1668 -3829.80 0.07 85.26 -0.04
15 0.2456 -5783.50 0.01 34.46 -0.01
16 0.2457 -5786.35 0.04 34.31 -0.01
17 0.3359 -7118.18 0.05 -82.37 0.03
18 0.3360 -7119.08 0.02 -82.56 0.04
19 0.3415 -7156.08 -0.00 -91.01 0.01
20 0.4016 -7188.72 0.00 -187.66 0.04
21 0.4180 -7076.94 -0.01 -214.50 0.01
22 0.9637 5610.22 0.09 -187.77 0.04
23 0.9801 5491.28 -0.05 -166.97 -0.15
24 0.9802 5490.09 0.02 -166.67 0.00
25 1.1249 2646.48 0.06 -56.32 -0.02
26 1.1412 2204.05 0.00 -55.34 -0.04
27 1.2013 589.61 -0.05 -74.20 -0.08
28 1.2039 523.43 -0.07 -75.69 -0.01
29 1.2149 246.96 -0.02 -83.10 0.01
30 1.2750 -1055.90 0.04 -141.54 -0.07
31 1.2944 -1377.13 0.05 -165.98 -0.09
32 1.3571 -1988.17 0.02 -257.45 0.03
33 1.3819 -2031.39 -0.06 -296.89 0.01
34 2.1106 8369.81 -0.01 -203.45 0.17
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.
15GF58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.725 43.733 43.716 ecceobj 0.078 0.078 0.077 incobj 3.128 3.128 3.128 qmin 39.865 39.873 39.870 qmax 48.349 48.389 48.427 amean 44.006 44.021 44.006 amin 43.655 43.674 43.652 amax 44.392 44.402 44.380 emean 0.074 0.074 0.075 emin 0.057 0.058 0.058 emax 0.090 0.091 0.091 imean 1.318 1.324 1.341 imin 0.489 0.500 0.523 imax 1.953 1.956 1.968 excite_mean 0.077 0.078 0.079 fracstop 1.000 1.000 1.000 cjmean 3.094 3.094 3.094 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 206.7 205.8 203.2 kozaiamp 180.0 180.0 179.9