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: 15VG169 # Created Sun Apr 27 01:10:41 2025 # Orbit generated from Bernstein formalism # Fitting 33 observations of 33 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: -0.000011 0.022465 -0.000000 0.000138 0.023078 0.000000 # Chi-squared of fit: 7.08 DOF: 60 RMS: 0.08 # Min/Max residuals: -0.26 0.24 # Exact a, adot, b, bdot, g, gdot: 1.554270E-05 2.257579E-02 4.325437E-07 1.401190E-04 2.321464E-02 8.821983E-05 # Covariance matrix: 4.3947E-13 -5.9286E-13 2.7527E-15 -3.8804E-15 -2.6482E-13 -8.0761E-12 -5.9286E-13 1.0518E-12 -5.5896E-15 8.4419E-15 5.0391E-13 1.7071E-11 2.7527E-15 -5.5896E-15 2.2555E-13 -1.5516E-13 -3.4765E-15 -1.0289E-13 -3.8804E-15 8.4419E-15 -1.5516E-13 1.3337E-13 3.9724E-15 1.5850E-13 -2.6482E-13 5.0391E-13 -3.4765E-15 3.9724E-15 3.9027E-13 9.0897E-12 -8.0761E-12 1.7071E-11 -1.0289E-13 1.5850E-13 9.0897E-12 3.1795E-10 # lat0 lon0 xBary yBary zBary JD0 -2.199004 46.672173 -0.136152 -0.037448 -0.979332 2456978.896128 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 4.48882 +/- 0.765 Argument of Peri: 274.42793 +/- 0.858 Long of Asc Node: 127.36776 +/- 0.024 Inclination: 2.17992 +/- 0.000 Eccentricity: 0.05538443 +/- 0.0001 Semi-Major Axis: 46.62829164 +/- 0.0034 Time of Perihelion: 2455520.3845 +/- 247.3 Perihelion: 44.04581019 +/- 0.0058 Aphelion: 49.21077309 +/- 0.0060 Period (y) 318.4069 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.10624017 +/- 0.0008 Ecliptic Y 32.12019290 +/- 0.0009 Ecliptic Z -1.65286062 +/- 0.0000 Ecliptic XDOT -0.00193352 +/- 0.0000 Ecliptic YDOT 0.00182999 +/- 0.0000 Ecliptic ZDOT 0.00001622 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.05478904 +/- 0.0008 Geocenter to KBO 43.07626001 +/- 0.0012 # Hcoef: 8.10
The following table shows the complete astrometric record for 15VG169. 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 (15VG169) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.39535 02 59 24.993 +14 42 39.16 25.0r 15VG169 568 C~2nw1 2014 11 19.30032 02 59 16.240 +14 42 03.01 24.6r 15VG169 568 C~2nw1 2014 11 23.40372 02 58 57.574 +14 40 46.76 24.3r 15VG169 568 C~2nw1 2015 08 12.57765 03 09 00.932 +15 25 59.69 24.9w 15VG169 568 C~2nw1 2015 09 07.53691 03 08 51.864 +15 24 06.99 24.6w 15VG169 568 C~2nw1 2015 09 12.53366 03 08 43.413 +15 23 19.40 24.8w 15VG169 568 C~2nw1 2015 10 07.47747 03 07 32.965 +15 17 36.94 24.7w 15VG169 568 C~2nw1 2015 10 08.48165 03 07 29.266 +15 17 20.03 24.7w 15VG169 568 C~2nw1 2015 10 08.55151 03 07 29.002 +15 17 19.00 24.7w 15VG169 568 C~2nw1 2015 10 08.56473 03 07 28.952 +15 17 18.67 24.6w 15VG169 568 C~2nw1 2015 11 06.29678 03 05 25.662 +15 08 24.51 24.5r 15VG169 568 C~2nw1 2015 11 06.36009 03 05 25.355 +15 08 23.23 24.4r 15VG169 568 C~2nw1 2015 11 06.43072 03 05 25.003 +15 08 22.11 24.8r 15VG169 568 C~2nw1 2015 11 06.50005 03 05 24.695 +15 08 20.53 24.1r 15VG169 568 C~2nw1 2015 11 07.51946 03 05 19.940 +15 08 00.82 24.6w 15VG169 568 C~2nw1 2015 11 17.28542 03 04 34.312 +15 04 53.62 24.6w 15VG169 568 C~2nw1 2015 11 17.33469 03 04 34.084 +15 04 52.67 24.6w 15VG169 568 C~2nw1 2015 12 06.41351 03 03 09.309 +14 59 19.27 24.9w 15VG169 568 C~2nw1 2015 12 13.34802 03 02 41.785 +14 57 35.91 24.7w 15VG169 568 C~2nw1 2015 12 13.40657 03 02 41.556 +14 57 35.10 24.7w 15VG169 568 C~2nw1 2016 01 01.40134 03 01 40.841 +14 54 03.99 24.7w 15VG169 568 C~2nw1 2016 01 07.34755 03 01 27.221 +14 53 22.97 25.1w 15VG169 568 C~2nw1 2016 02 04.27768 03 01 04.712 +14 53 15.67 24.8w 15VG169 568 C~2nw1 2016 02 10.26747 03 01 09.294 +14 53 54.45 25.0w 15VG169 568 C~2nw1 2016 09 06.61716 03 13 57.337 +15 45 09.79 15VG169 568 C~2nw1 2016 09 26.60468 03 13 13.791 +15 41 27.73 23.3w 15VG169 568 C~2nw1 2016 10 10.41386 03 12 27.039 +15 37 55.81 25.0w 15VG169 568 C~2nw1 2016 10 10.47261 03 12 26.806 +15 37 54.86 24.8w 15VG169 568 C~2nw1 2016 10 27.50838 03 11 15.610 +15 32 50.65 24.6w 15VG169 568 C~2nw1 2016 11 03.53341 03 10 43.491 +15 30 38.14 24.8w 15VG169 568 C~2nw1 2016 12 28.40571 03 06 54.780 +15 16 15.11 25.1w 15VG169 568 C~2nw1 2016 12 29.36323 03 06 52.055 +15 16 06.47 25.1w 15VG169 568 C~2nw1 2017 01 26.26424 03 06 05.975 +15 14 19.26 24.7w 15VG169 568 C~2nw1
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 -0.03 0.00 -0.07
2 0.0052 -132.03 0.01 1.17 -0.05
3 0.0165 -413.38 0.06 4.54 0.05
4 0.7342 8740.95 0.24 188.12 0.16
5 0.8053 8583.85 -0.09 115.24 -0.09
6 0.8190 8453.08 -0.02 102.67 0.04
7 0.8873 7377.66 0.09 51.06 0.02
8 0.8900 7321.48 -0.05 49.43 -0.05
9 0.8902 7317.52 -0.00 49.48 0.09
10 0.8903 7316.74 -0.03 49.36 -0.02
11 0.9689 5452.33 0.04 25.70 -0.04
12 0.9691 5447.70 -0.09 25.70 -0.07
13 0.9693 5442.49 -0.26 26.03 0.24
14 0.9695 5437.76 -0.04 25.74 -0.07
15 0.9723 5366.10 -0.01 25.78 -0.01
16 0.9990 4678.92 0.01 28.38 -0.05
17 0.9991 4675.48 0.06 28.38 -0.10
18 1.0514 3402.61 -0.08 48.76 0.07
19 1.0704 2990.66 0.12 60.54 -0.04
20 1.0705 2987.25 0.09 60.68 -0.01
21 1.1225 2083.19 -0.01 103.69 0.01
22 1.1388 1882.14 -0.04 119.57 -0.13
23 1.2153 1566.85 0.05 203.99 0.14
24 1.2317 1641.48 -0.05 222.60 0.05
25 1.8049 13187.61 0.06 144.09 0.04
26 1.8596 12519.82 -0.12 97.57 -0.06
27 1.8974 11810.04 0.06 73.91 -0.05
28 1.8975 11806.53 -0.01 73.89 -0.01
29 1.9442 10730.77 0.04 57.08 -0.01
30 1.9634 10246.78 -0.04 54.58 0.01
31 2.1136 6823.18 -0.00 123.63 -0.06
32 2.1163 6782.85 -0.06 126.13 0.04
33 2.1927 6111.54 0.13 206.14 0.03
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.
15VG169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.016 47.027 47.004 ecceobj 0.063 0.064 0.063 incobj 2.180 2.180 2.180 qmin 43.186 43.133 43.186 qmax 50.320 50.340 50.294 amean 46.634 46.644 46.624 amin 46.257 46.268 46.259 amax 47.027 47.038 47.034 emean 0.058 0.058 0.058 emin 0.045 0.046 0.045 emax 0.070 0.070 0.070 imean 1.171 1.171 1.172 imin 0.815 0.815 0.815 imax 1.478 1.479 1.479 excite_mean 0.062 0.062 0.062 fracstop 1.000 1.000 1.000 cjmean 3.130 3.130 3.130 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 183.9 183.6 183.6 kozaiamp 180.0 180.0 180.0