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: 15VC165
# Created Sun Dec 22 02:10:33 2024
# Orbit generated from Bernstein formalism
# Fitting 30 observations of 30
# Arc: 2.27y
# First observation: 2015/09/07
# Last observation: 2017/12/13
Preliminary a, adot, b, bdot, g, gdot:
-0.000129 0.030476 -0.000003 -0.007235 0.028395 0.000000
# Chi-squared of fit: 7.05 DOF: 54 RMS: 0.09
# Min/Max residuals: -0.20 0.20
# Exact a, adot, b, bdot, g, gdot:
1.622533E-05 3.023379E-02 -4.368660E-06 -7.190668E-03 2.831721E-02 1.940345E-03
# Covariance matrix:
1.9888E-13 -2.8307E-14 4.4170E-15 -1.7682E-14 1.2541E-13 1.2209E-12
-2.8307E-14 3.6672E-13 2.6245E-14 -1.0086E-13 2.2234E-13 6.8770E-12
4.4170E-15 2.6245E-14 1.2676E-13 -9.6854E-14 2.0172E-14 6.8101E-13
-1.7682E-14 -1.0086E-13 -9.6854E-14 1.3764E-13 -7.8399E-14 -2.6139E-12
1.2541E-13 2.2234E-13 2.0172E-14 -7.8399E-14 2.7997E-13 5.3644E-12
1.2209E-12 6.8770E-12 6.8101E-13 -2.6139E-12 5.3644E-12 1.7815E-10
# lat0 lon0 xBary yBary zBary JD0
0.422431 52.005406 0.933733 0.003008 -0.387759 2457273.129809
# Heliocentric elements and errors
Epoch: 2457270.5000 = 2015/09/05
Mean Anomaly: 18.79291 +/- 0.199
Argument of Peri: 155.29540 +/- 0.248
Long of Asc Node: 232.26928 +/- 0.000
Inclination: 13.36627 +/- 0.001
Eccentricity: 0.09814567 +/- 0.0002
Semi-Major Axis: 39.31887273 +/- 0.0027
Time of Perihelion: 2452569.4854 +/- 49.7
Perihelion: 35.45989567 +/- 0.0082
Aphelion: 43.17784978 +/- 0.0084
Period (y) 246.5527 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 22.70891482 +/- 0.0004
Ecliptic Y 27.55979468 +/- 0.0005
Ecliptic Z 0.26021617 +/- 0.0000
Ecliptic XDOT -0.00218688 +/- 0.0000
Ecliptic YDOT 0.00194492 +/- 0.0000
Ecliptic ZDOT -0.00069377 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.71141005 +/- 0.0005
Geocenter to KBO 35.31421856 +/- 0.0007
# Hcoef: 9.68
The following table shows the complete astrometric record for 15VC165. 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 (15VC165) followed by the observatory code and reference code for the source of the astrometry.
2015 09 07.62902 03 17 53.838 +18 40 36.96 25.4w 15VC165 568 C~2lVZ 2015 09 12.49264 03 17 45.473 +18 39 47.73 26.9w 15VC165 568 C~2lVZ 2015 10 07.53854 03 16 25.573 +18 33 10.77 25.4w 15VC165 568 C~2lVZ 2015 10 09.57780 03 16 16.693 +18 32 28.85 25.5w 15VC165 568 C~2lVZ 2015 11 07.33264 03 13 47.158 +18 20 55.03 25.0r 15VC165 568 C~2lVZ 2015 11 07.37479 03 13 46.922 +18 20 53.85 25.1r 15VC165 568 C~2lVZ 2015 11 07.41697 03 13 46.673 +18 20 52.69 25.0r 15VC165 568 C~2lVZ 2015 11 10.49950 03 13 29.050 +18 19 30.99 24.9w 15VC165 568 C~2lVZ 2015 11 17.34635 03 12 49.784 +18 16 28.13 25.4w 15VC165 568 C~2lVZ 2015 11 17.39294 03 12 49.508 +18 16 26.97 25.2w 15VC165 568 C~2lVZ 2016 01 01.34294 03 09 14.527 +17 58 53.00 25.3w 15VC165 568 C~2lVZ 2016 01 08.25043 03 08 54.859 +17 57 02.08 25.4w 15VC165 568 C~2lVZ 2016 02 05.28189 03 08 28.744 +17 53 06.65 25.4w 15VC165 568 C~2lVZ 2016 09 07.57363 03 25 22.679 +18 42 54.47 15VC165 568 C~2lVZ 2016 09 27.51061 03 24 35.211 +18 38 37.41 25.8w 15VC165 568 C~2lVZ 2016 10 05.48792 03 24 05.577 +18 36 15.07 25.2w 15VC165 568 C~2lVZ 2016 10 07.49247 03 23 57.313 +18 35 36.02 25.5w 15VC165 568 C~2lVZ 2016 10 07.58817 03 23 56.887 +18 35 34.07 25.3w 15VC165 568 C~2lVZ 2016 10 09.49252 03 23 48.748 +18 34 56.24 25.8w 15VC165 568 C~2lVZ 2016 11 02.50259 03 21 47.041 +18 25 42.91 25.4w 15VC165 568 C~2lVZ 2016 11 04.47870 03 21 35.935 +18 24 53.04 25.1w 15VC165 568 C~2lVZ 2016 12 24.32550 03 17 12.965 +18 04 49.34 25.4w 15VC165 568 C~2lVZ 2016 12 28.42845 03 16 57.204 +18 03 32.46 26.1w 15VC165 568 C~2lVZ 2017 01 02.42780 03 16 40.014 +18 02 06.07 25.1w 15VC165 568 C~2lVZ 2017 01 26.34230 03 15 53.584 +17 57 31.96 25.0w 15VC165 568 C~2lVZ 2017 01 27.27995 03 15 53.065 +17 57 26.36 25.6w 15VC165 568 C~2lVZ 2017 09 16.60340 03 32 36.643 +18 42 38.88 25.7w 15VC165 568 C~2lVZ 2017 09 23.54254 03 32 19.647 +18 41 06.25 24.9w 15VC165 568 C~2lVZ 2017 12 13.39064 03 25 36.231 +18 11 10.91 25.5w 15VC165 568 C~2lVZ 2017 12 13.42791 03 25 36.045 +18 11 10.10 25.5w 15VC165 568 C~2lVZ
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 0.14 0.00 0.07
2 0.0133 -127.56 -0.05 -16.82 -0.16
3 0.0819 -1327.53 0.10 -105.35 0.03
4 0.0875 -1460.38 0.08 -112.92 -0.03
5 0.1662 -3696.03 -0.08 -224.30 0.11
6 0.1663 -3699.59 0.01 -224.55 0.00
7 0.1664 -3703.31 -0.06 -224.74 -0.03
8 0.1749 -3967.00 0.05 -237.25 -0.04
9 0.1936 -4554.91 -0.10 -265.51 -0.03
10 0.1937 -4559.01 -0.14 -265.59 0.06
11 0.3168 -7796.91 0.15 -461.21 0.03
12 0.3357 -8097.53 -0.03 -492.23 0.04
13 0.4125 -8520.75 0.02 -618.12 0.04
14 1.0019 6205.97 0.00 -1483.61 -0.04
15 1.0565 5488.11 -0.01 -1564.65 -0.03
16 1.0783 5044.37 -0.11 -1597.23 0.10
17 1.0838 4920.78 0.05 -1605.64 -0.05
18 1.0841 4914.42 -0.14 -1606.01 -0.06
19 1.0893 4792.85 0.12 -1613.65 0.17
20 1.1550 2977.38 -0.02 -1712.96 0.02
21 1.1604 2811.81 -0.02 -1721.14 0.01
22 1.2969 -1118.11 -0.14 -1923.80 -0.20
23 1.3081 -1355.14 0.20 -1939.71 0.06
24 1.3218 -1614.36 -0.18 -1959.42 -0.02
25 1.3873 -2325.38 0.07 -2051.48 -0.13
26 1.3899 -2333.99 0.03 -2054.95 -0.05
27 2.0259 12195.06 -0.03 -3002.94 -0.03
28 2.0449 11937.55 0.04 -3035.19 0.00
29 2.2663 5920.21 0.00 -3376.49 0.07
30 2.2664 5917.44 0.04 -3376.61 0.07
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.
15VC165 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.712 39.725 39.700 ecceobj 0.108 0.108 0.107 incobj 13.321 13.321 13.321 qmin 34.633 34.586 34.628 qmax 44.647 44.575 44.635 amean 39.459 39.460 39.459 amin 39.113 39.123 39.108 amax 39.843 39.826 39.847 emean 0.095 0.095 0.095 emin 0.071 0.069 0.068 emax 0.121 0.122 0.122 imean 14.732 14.725 14.739 imin 14.062 14.027 14.067 imax 15.407 15.413 15.416 excite_mean 0.272 0.272 0.272 fracstop 1.000 1.000 1.000 cjmean 2.967 2.967 2.967 libcent 0 180.5 180.0 179.9 libamp 0 60.2 52.7 65.4 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 180.2 180.0 179.9 kozaiamp 180.0 179.9 180.0