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: 15VH169 # Created Mon Apr 28 01:10:41 2025 # Orbit generated from Bernstein formalism # Fitting 34 observations of 35 # Arc: 2.19y # First observation: 2014/11/17 # Last observation: 2017/01/26 Preliminary a, adot, b, bdot, g, gdot: 0.000014 0.022555 0.000001 0.000493 0.023683 0.000000 # Chi-squared of fit: 10.83 DOF: 62 RMS: 0.10 # Min/Max residuals: -0.47 0.16 # Exact a, adot, b, bdot, g, gdot: 1.439058E-05 2.265696E-02 2.435098E-07 4.973942E-04 2.373840E-02 -6.797333E-04 # Covariance matrix: 2.7141E-13 -3.6450E-13 2.7159E-15 -6.2358E-15 -1.7768E-13 -5.0248E-12 -3.6450E-13 7.7967E-13 -7.3759E-15 1.7460E-14 4.2202E-13 1.3773E-11 2.7159E-15 -7.3759E-15 1.7409E-13 -1.1193E-13 -4.4977E-15 -1.4869E-13 -6.2358E-15 1.7460E-14 -1.1193E-13 9.6138E-14 9.5973E-15 3.5509E-13 -1.7768E-13 4.2202E-13 -4.4977E-15 9.5973E-15 3.7852E-13 8.1452E-12 -5.0248E-12 1.3773E-11 -1.4869E-13 3.5509E-13 8.1452E-12 2.7840E-10 # lat0 lon0 xBary yBary zBary JD0 -2.231375 46.667870 -0.134331 -0.038021 -0.979576 2456978.787348 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 263.81758 +/- 0.251 Argument of Peri: 39.56738 +/- 0.242 Long of Asc Node: 106.76437 +/- 0.015 Inclination: 2.51984 +/- 0.000 Eccentricity: 0.02955000 +/- 0.0007 Semi-Major Axis: 42.93175855 +/- 0.0036 Time of Perihelion: 2484421.5924 +/- 71.6 Perihelion: 41.66312519 +/- 0.0313 Aphelion: 44.20039190 +/- 0.0313 Period (y) 281.3042 +/- 0.04 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.45784550 +/- 0.0007 Ecliptic Y 31.42534221 +/- 0.0008 Ecliptic Z -1.64017369 +/- 0.0000 Ecliptic XDOT -0.00195725 +/- 0.0000 Ecliptic YDOT 0.00173287 +/- 0.0000 Ecliptic ZDOT 0.00006048 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.10460490 +/- 0.0008 Geocenter to KBO 42.12583116 +/- 0.0011 # Hcoef: 8.45
The following table shows the complete astrometric record for 15VH169. 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 (15VH169) followed by the observatory code and reference code for the source of the astrometry.
2014 11 17.28657 02 59 26.236 +14 40 42.99 24.1r 15VH169 568 C~2nw1 2014 11 17.39535 02 59 25.704 +14 40 40.94 24.6r 15VH169 568 C~2nw1 2014 11 17.50914 02 59 25.146 +14 40 38.47 24.9r 15VH169 568 C~2nw1 2014 11 19.30032 02 59 16.713 +14 40 04.09 24.8r 15VH169 568 C~2nw1 2014 11 23.40372 02 58 57.554 +14 38 46.53 25.1r 15VH169 568 C~2nw1 2015 09 07.53691 03 08 59.741 +15 23 42.85 24.7w 15VH169 568 C~2nw1 2015 09 12.53366 03 08 51.012 +15 22 54.68 25.3w 15VH169 568 C~2nw1 2015 10 07.47747 03 07 38.522 +15 17 07.52 24.9w 15VH169 568 C~2nw1 2015 10 08.53987 03 07 34.491 +15 16 49.48 24.0w 15VH169 568 C~2nw1 2015 10 08.55151 03 07 34.460 +15 16 49.27 24.3w 15VH169 568 C~2nw1 2015 10 08.56473 03 07 34.408 +15 16 49.13 24.6w 15VH169 568 C~2nw1 2015 11 06.29678 03 05 27.716 +15 07 46.16 24.7r 15VH169 568 C~2nw1 2015 11 06.36009 03 05 27.394 +15 07 45.00 24.9r 15VH169 568 C~2nw1 2015 11 06.43072 03 05 27.091 +15 07 43.78 24.3r 15VH169 568 C~2nw1 2015 11 06.50005 03 05 26.715 +15 07 42.03 24.3r 15VH169 568 C~2nw1 2015 11 07.51946 03 05 21.834 +15 07 22.12 25.2w 15VH169 568 C~2nw1 2015 11 17.28542 03 04 34.960 +15 04 11.90 25.1w 15VH169 568 C~2nw1 2015 11 17.33469 03 04 34.720 +15 04 10.95 25.0w 15VH169 568 C~2nw1 2015 12 06.41351 03 03 07.612 +14 58 32.07 25.2w 15VH169 568 C~2nw1 2015 12 13.34802 03 02 39.267 +14 56 47.34 25.4w 15VH169 568 C~2nw1 2015 12 13.40657 03 02 39.070 +14 56 46.48 24.8w 15VH169 568 C~2nw1 2016 01 01.40134 03 01 36.605 +14 53 12.94 25.0w 15VH169 568 C~2nw1 2016 01 07.34755 03 01 22.542 +14 52 32.00 24.9w 15VH169 568 C~2nw1 2016 02 04.27768 03 00 59.053 +14 52 28.32 25.3w 15VH169 568 C~2nw1 2016 09 06.61716 03 14 05.744 +15 46 02.69 15VH169 568 C~2nw1 2016 09 26.60468 03 13 20.868 +15 42 18.71 24.9w 15VH169 568 C~2nw1 2016 10 10.41386 03 12 32.757 +15 38 43.76 25.4w 15VH169 568 C~2nw1 2016 10 10.47261 03 12 32.520 +15 38 42.83 25.1w 15VH169 568 C~2nw1 2016 10 27.50838 03 11 19.315 +15 33 33.79 25.4w 15VH169 568 C~2nw1 2016 11 03.53341 03 10 46.288 +15 31 19.11 24.9w 15VH169 568 C~2nw1 2016 12 28.40571 03 06 51.030 +15 16 42.11 25.6w 15VH169 568 C~2nw1 2016 12 29.36323 03 06 48.227 +15 16 33.41 25.7w 15VH169 568 C~2nw1 2017 01 01.26044 03 06 40.183 +15 16 08.76 25.1w 15VH169 568 C~2nw1 2017 01 02.37026 03 06 37.274 +15 15 59.90 24.8w 15VH169 568 C~2nw1 2017 01 26.26424 03 06 00.554 +15 14 46.85 24.9w 15VH169 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 0.14 0.00 0.02
2 0.0003 -7.98 0.04 0.21 0.10
3 0.0006 -16.45 -0.17 0.13 -0.10
4 0.0055 -143.55 0.00 1.69 0.00
5 0.0167 -432.17 0.10 5.83 -0.06
6 0.8056 8702.60 0.01 177.51 -0.04
7 0.8193 8567.79 -0.02 165.46 0.01
8 0.8876 7462.55 0.08 117.27 -0.01
9 0.8905 7401.44 -0.06 115.85 0.05
10 0.8905 7400.95 0.13 115.78 -0.02
11 0.8906 7400.18 0.15 115.85 0.06
12 0.9692 5485.85 0.08 97.15 -0.05
13 0.9694 5481.04 -0.10 97.32 0.09
14 0.9696 5476.48 ( 0.51) 97.35 ( 0.08)
15 0.9698 5470.76 -0.13 97.17 -0.13
16 0.9726 5397.29 -0.01 97.52 0.04
17 0.9993 4691.89 0.09 102.21 0.04
18 0.9994 4688.28 0.07 102.26 0.03
19 1.0517 3381.33 -0.01 126.79 -0.04
20 1.0707 2957.56 -0.47 140.59 0.16
21 1.0708 2954.57 0.03 140.56 -0.01
22 1.1228 2025.43 0.03 188.39 -0.13
23 1.1391 1818.23 -0.24 206.16 0.01
24 1.2156 1490.30 0.14 298.09 0.03
25 1.8051 13334.77 -0.17 279.33 -0.03
26 1.8599 12647.88 -0.06 235.97 0.02
27 1.8977 11918.30 -0.01 214.53 -0.02
28 1.8978 11914.74 -0.03 214.55 0.05
29 1.9445 10809.64 0.13 200.76 -0.02
30 1.9637 10312.41 0.01 199.67 0.05
31 2.1139 6793.85 -0.01 281.01 -0.10
32 2.1166 6752.42 0.00 283.76 0.02
33 2.1245 6633.60 0.05 291.98 0.10
34 2.1275 6590.64 0.14 295.01 -0.10
35 2.1930 6059.13 0.06 370.79 0.01
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.
15VH169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.245 43.254 43.236 ecceobj 0.025 0.026 0.024 incobj 2.521 2.521 2.521 qmin 40.518 40.541 40.541 qmax 45.492 45.530 45.477 amean 42.934 42.943 42.926 amin 42.615 42.630 42.594 amax 43.270 43.288 43.265 emean 0.032 0.033 0.031 emin 0.012 0.013 0.012 emax 0.052 0.053 0.052 imean 1.365 1.363 1.367 imin 0.270 0.269 0.268 imax 2.190 2.187 2.194 excite_mean 0.040 0.041 0.040 fracstop 1.000 1.000 1.000 cjmean 3.087 3.087 3.087 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 192.3 192.3 192.4 kozaiamp 180.0 179.9 180.0