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: 15GV58
# Created Sun Nov 24 02:10:18 2024
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 23
# Arc: 1.38y
# First observation: 2015/02/17
# Last observation: 2016/07/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000095 0.022244 0.000001 -0.000456 0.023311 0.000000
# Chi-squared of fit: 9.64 DOF: 40 RMS: 0.11
# Min/Max residuals: -0.34 0.27
# Exact a, adot, b, bdot, g, gdot:
1.496883E-05 2.213060E-02 -9.228378E-07 -4.557526E-04 2.332163E-02 9.468031E-05
# Covariance matrix:
3.0711E-13 8.2743E-14 -1.3737E-15 -8.2426E-15 3.6556E-13 1.7931E-11
8.2743E-14 5.5865E-13 -1.2129E-15 -1.3433E-14 4.6228E-13 2.8042E-11
-1.3737E-15 -1.2129E-15 1.2786E-13 -1.2975E-13 -2.5387E-15 -7.5805E-14
-8.2426E-15 -1.3433E-14 -1.2975E-13 2.6160E-13 -1.9120E-14 -1.3672E-12
3.6556E-13 4.6228E-13 -2.5387E-15 -1.9120E-14 7.6370E-13 4.0850E-11
1.7931E-11 2.8042E-11 -7.5805E-14 -1.3672E-12 4.0850E-11 2.7991E-09
# lat0 lon0 xBary yBary zBary JD0
1.802347 -154.122056 0.831537 0.016762 -0.528269 2457071.093388
# Heliocentric elements and errors
Epoch: 2457070.5000 = 2015/02/17
Mean Anomaly: 243.33662 +/- 4.342
Argument of Peri: 240.87743 +/- 4.336
Long of Asc Node: 81.99745 +/- 0.030
Inclination: 2.11680 +/- 0.001
Eccentricity: 0.01430350 +/- 0.0021
Semi-Major Axis: 43.13354884 +/- 0.0039
Time of Perihelion: 2490602.0220 +/- 1248.0
Perihelion: 42.51658834 +/- 0.0911
Aphelion: 43.75050935 +/- 0.0911
Period (y) 283.2898 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.40115105 +/- 0.0015
Ecliptic Y -18.18786816 +/- 0.0007
Ecliptic Z 1.34857001 +/- 0.0001
Ecliptic XDOT 0.00111876 +/- 0.0000
Ecliptic YDOT -0.00234867 +/- 0.0000
Ecliptic ZDOT -0.00005303 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.41736857 +/- 0.0013
Geocenter to KBO 42.87864822 +/- 0.0016
# Hcoef: 8.42
The following table shows the complete astrometric record for 15GV58. 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 (15GV58) followed by the observatory code and reference code for the source of the astrometry.
2015 02 17.59261 13 38 37.013 -08 19 05.36 24.7r 15GV58 568 C~2nvb 2015 02 17.63360 13 38 36.930 -08 19 04.99 24.9r 15GV58 568 C~2nvb 2015 02 20.62674 13 38 30.748 -08 18 23.07 24.6r 15GV58 568 C~2nvb 2015 03 18.57107 13 37 11.668 -08 10 05.06 24.9r 15GV58 568 C~2nvb 2015 03 18.61845 13 37 11.498 -08 10 04.04 25.1r 15GV58 568 C~2nvb 2015 03 20.57526 13 37 03.996 -08 09 18.78 24.6r 15GV58 568 C~2nvb 2015 04 11.50958 13 35 31.635 -08 00 12.80 24.9r 15GV58 568 C~2nvb 2015 04 13.37381 13 35 23.396 -07 59 25.05 24.8r 15GV58 568 C~2nvb 2015 04 13.41479 13 35 23.197 -07 59 23.95 24.7r 15GV58 568 C~2nvb 2015 04 13.51735 13 35 22.737 -07 59 21.42 24.8r 15GV58 568 C~2nvb 2015 04 19.41451 13 34 56.572 -07 56 51.04 24.6r 15GV58 568 C~2nvb 2015 05 18.33721 13 32 56.894 -07 45 46.13 24.4r 15GV58 568 C~2nvb 2015 06 20.28725 13 31 29.634 -07 38 30.80 24.6r 15GV58 568 C~2nvb 2015 06 20.32802 13 31 29.573 -07 38 30.63 25.0r 15GV58 568 C~2nvb 2015 06 22.33199 13 31 26.752 -07 38 19.65 24.9r 15GV58 568 C~2nvb 2016 02 04.61026 13 43 39.479 -08 50 07.91 24.4w 15GV58 568 C~2nvb 2016 02 11.59334 13 43 32.294 -08 49 10.94 25.3w 15GV58 568 C~2nvb 2016 03 11.60082 13 42 21.449 -08 41 33.92 25.2w 15GV58 568 C~2nvb 2016 04 03.47362 13 40 51.612 -08 32 40.24 24.7w 15GV58 568 C~2nvb 2016 04 09.45477 13 40 25.502 -08 30 09.38 25.0w 15GV58 568 C~2nvb 2016 05 02.33557 13 38 44.819 -08 20 42.06 24.9w 15GV58 568 C~2nvb 2016 06 27.33817 13 36 03.468 -08 07 05.20 24.8w 15GV58 568 C~2nvb 2016 07 07.32804 13 35 57.830 -08 07 01.34 25.2w 15GV58 568 C~2nvb
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 0.13
2 0.0001 -1.28 0.07 -0.10 -0.04
3 0.0083 -101.99 -0.15 5.79 0.05
4 0.0793 -1376.64 -0.11 44.86 0.13
5 0.0795 -1379.36 0.10 44.89 0.13
6 0.0848 -1499.59 0.06 46.69 -0.03
7 0.1449 -2976.06 0.01 57.45 0.01
8 0.1500 -3107.45 0.11 57.45 0.02
9 0.1501 -3110.61 -0.10 57.40 -0.00
10 0.1504 -3117.90 -0.02 57.27 -0.08
11 0.1665 -3534.76 0.09 55.99 -0.06
12 0.2457 -5434.02 -0.23 27.23 -0.34
13 0.3359 -6801.70 -0.02 -41.41 0.06
14 0.3360 -6802.61 0.04 -41.59 -0.00
15 0.3415 -6845.70 0.15 -46.71 -0.06
16 0.9638 4856.88 0.12 -121.70 0.03
17 0.9829 4736.97 -0.02 -106.72 0.13
18 1.0623 3592.15 0.13 -57.30 -0.01
19 1.1249 2156.74 -0.07 -38.89 0.00
20 1.1413 1741.03 -0.05 -37.80 -0.02
21 1.2040 142.98 -0.24 -48.25 -0.19
22 1.3573 -2385.65 0.12 -155.01 0.27
23 1.3846 -2465.07 0.02 -181.82 -0.13
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.
15GV58 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.746 42.756 42.737 ecceobj 0.022 0.021 0.022 incobj 2.117 2.117 2.117 qmin 41.127 41.222 41.149 qmax 44.974 45.047 45.035 amean 43.021 43.030 43.011 amin 42.697 42.705 42.680 amax 43.356 43.359 43.346 emean 0.024 0.023 0.024 emin 0.001 0.001 0.001 emax 0.038 0.039 0.040 imean 0.906 0.902 0.910 imin 0.597 0.593 0.599 imax 1.230 1.222 1.236 excite_mean 0.029 0.029 0.029 fracstop 1.000 1.000 1.000 cjmean 3.089 3.089 3.089 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 189.0 188.8 189.4 kozaiamp 180.0 180.0 179.9