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: 15VV164
# Created Sun Dec 22 02:10:32 2024
# Orbit generated from Bernstein formalism
# Fitting 27 observations of 27
# Arc: 2.32y
# First observation: 2015/08/20
# Last observation: 2017/12/13
Preliminary a, adot, b, bdot, g, gdot:
-0.000146 0.030557 -0.000002 0.000941 0.027945 0.000000
# Chi-squared of fit: 5.58 DOF: 48 RMS: 0.08
# Min/Max residuals: -0.24 0.26
# Exact a, adot, b, bdot, g, gdot:
1.766948E-05 2.994476E-02 7.968163E-08 9.188412E-04 2.760784E-02 -2.864215E-04
# Covariance matrix:
1.9383E-13 -1.0003E-13 4.7311E-16 -2.3971E-15 9.3239E-14 -1.1514E-12
-1.0003E-13 1.0997E-12 -1.5389E-14 5.8829E-14 4.7395E-13 2.9557E-11
4.7311E-16 -1.5389E-14 1.0865E-13 -8.4990E-14 -7.2293E-15 -4.6888E-13
-2.3971E-15 5.8829E-14 -8.4990E-14 1.2967E-13 2.6938E-14 1.7970E-12
9.3239E-14 4.7395E-13 -7.2293E-15 2.6938E-14 3.5054E-13 1.3597E-11
-1.1514E-12 2.9557E-11 -4.6888E-13 1.7970E-12 1.3597E-11 9.0246E-10
# lat0 lon0 xBary yBary zBary JD0
0.106175 53.738186 1.012793 0.000245 -0.060434 2457255.068249
# Heliocentric elements and errors
Epoch: 2457250.5000 = 2015/08/16
Mean Anomaly: 336.37130 +/- 0.513
Argument of Peri: 31.66002 +/- 0.629
Long of Asc Node: 48.70690 +/- 0.002
Inclination: 1.76750 +/- 0.001
Eccentricity: 0.09022381 +/- 0.0004
Semi-Major Axis: 39.50040819 +/- 0.0027
Time of Perihelion: 2463202.1600 +/- 129.1
Perihelion: 35.93653089 +/- 0.0177
Aphelion: 43.06428549 +/- 0.0178
Period (y) 248.2622 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 22.27249396 +/- 0.0005
Ecliptic Y 28.65579272 +/- 0.0006
Ecliptic Z 0.06714737 +/- 0.0000
Ecliptic XDOT -0.00241335 +/- 0.0000
Ecliptic YDOT 0.00172704 +/- 0.0000
Ecliptic ZDOT 0.00009112 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.29356627 +/- 0.0006
Geocenter to KBO 36.22159792 +/- 0.0008
# Hcoef: 8.61
The following table shows the complete astrometric record for 15VV164. 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 (15VV164) followed by the observatory code and reference code for the source of the astrometry.
2015 08 20.56746 03 25 18.965 +18 48 37.19 24.6w 15VV164 568 C~2lVY 2015 09 07.61267 03 25 13.252 +18 48 29.37 24.3w 15VV164 568 C~2lVY 2015 09 12.46374 03 25 05.647 +18 48 05.12 24.5w 15VV164 568 C~2lVY 2015 10 07.51519 03 23 49.310 +18 43 43.13 23.3w 15VV164 568 C~2lVY 2015 10 07.57457 03 23 49.031 +18 43 42.31 24.3w 15VV164 568 C~2lVY 2015 10 09.55447 03 23 40.655 +18 43 12.81 24.3w 15VV164 568 C~2lVY 2015 11 06.32832 03 21 18.916 +18 34 45.08 24.2r 15VV164 568 C~2lVY 2015 11 06.39169 03 21 18.552 +18 34 43.74 24.3r 15VV164 568 C~2lVY 2015 11 06.46246 03 21 18.154 +18 34 42.27 24.1r 15VV164 568 C~2lVY 2015 11 07.48432 03 21 12.357 +18 34 21.25 24.2w 15VV164 568 C~2lVY 2015 11 17.46555 03 20 15.225 +18 30 52.85 24.2w 15VV164 568 C~2lVY 2015 12 06.33173 03 18 30.470 +18 24 26.75 24.5w 15VV164 568 C~2lVY 2015 12 06.46917 03 18 29.746 +18 24 23.89 24.3w 15VV164 568 C~2lVY 2015 12 31.35296 03 16 39.013 +18 17 31.97 24.2w 15VV164 568 C~2lVY 2016 01 07.38230 03 16 16.875 +18 16 09.46 24.8w 15VV164 568 C~2lVY 2016 02 04.34615 03 15 40.742 +18 13 59.45 24.9w 15VV164 568 C~2lVY 2016 02 11.23523 03 15 45.574 +18 14 20.16 24.7w 15VV164 568 C~2lVY 2016 09 07.61990 03 32 14.825 +19 16 50.33 24.7w 15VV164 568 C~2lVY 2016 09 27.54346 03 31 29.922 +19 14 29.16 24.6w 15VV164 568 C~2lVY 2016 10 09.53944 03 30 44.676 +19 11 59.43 24.5w 15VV164 568 C~2lVY 2016 10 09.61149 03 30 44.367 +19 11 58.34 24.5w 15VV164 568 C~2lVY 2016 10 31.51783 03 28 55.736 +19 05 48.71 24.5w 15VV164 568 C~2lVY 2016 11 02.46775 03 28 44.921 +19 05 11.62 24.5w 15VV164 568 C~2lVY 2016 11 04.44390 03 28 33.863 +19 04 33.47 24.4w 15VV164 568 C~2lVY 2016 12 29.39711 03 23 46.587 +18 47 37.84 15VV164 568 C~2lVY 2017 12 13.36234 03 32 07.494 +19 20 46.58 24.2w 15VV164 568 C~2lVY 2017 12 13.40466 03 32 07.275 +19 20 45.93 24.6w 15VV164 568 C~2lVY
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 -0.11 0.00 0.09
2 0.0494 -80.52 0.12 12.59 -0.02
3 0.0627 -191.14 -0.01 15.97 0.02
4 0.1313 -1306.42 0.26 33.02 -0.08
5 0.1314 -1310.46 -0.09 33.22 0.06
6 0.1369 -1433.06 -0.06 34.49 0.03
7 0.2129 -3510.75 -0.01 51.60 0.10
8 0.2131 -3516.10 -0.03 51.61 0.05
9 0.2133 -3521.94 0.10 51.63 -0.01
10 0.2161 -3607.03 0.00 52.24 0.01
11 0.2434 -4446.12 0.00 57.70 -0.01
12 0.2950 -5986.75 -0.09 66.92 -0.04
13 0.2954 -5997.45 -0.00 66.82 -0.24
14 0.3635 -7628.67 -0.10 77.23 0.00
15 0.3828 -7955.05 0.04 79.69 -0.06
16 0.4594 -8486.71 0.00 88.58 0.00
17 0.4782 -8414.73 0.04 90.57 0.02
18 1.0515 6133.06 0.01 204.63 0.11
19 1.1060 5481.40 -0.05 219.85 0.01
20 1.1389 4822.93 -0.07 228.67 0.04
21 1.1391 4818.41 -0.01 228.67 -0.02
22 1.1990 3234.80 0.15 243.07 -0.16
23 1.2044 3077.04 -0.09 244.46 0.05
24 1.2098 2915.68 -0.04 245.70 0.12
25 1.3602 -1285.04 0.02 269.94 -0.10
26 2.3157 6088.74 -0.00 458.95 -0.04
27 2.3158 6085.57 0.04 459.06 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.
15VV164 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.868 39.881 39.855 ecceobj 0.095 0.095 0.096 incobj 1.762 1.762 1.761 qmin 35.471 35.575 35.366 qmax 43.906 43.858 43.883 amean 39.463 39.463 39.463 amin 39.058 39.041 39.063 amax 39.897 39.906 39.906 emean 0.079 0.077 0.080 emin 0.057 0.054 0.059 emax 0.102 0.101 0.101 imean 1.711 1.947 1.604 imin 0.727 0.851 0.594 imax 2.450 2.757 2.297 excite_mean 0.085 0.085 0.085 fracstop 1.000 1.000 1.000 cjmean 3.043 3.043 3.043 libcent 0 180.7 181.0 180.6 libamp 0 85.4 91.6 80.4 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 178.4 180.6 176.6 kozaiamp 180.0 180.0 180.0