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: 15VE169 # Created Wed Dec 25 02:10:31 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 35 observations of 35 # Arc: 6.31y # First observation: 2015/08/11 # Last observation: 2021/12/01 # Chi-squared of fit: 7.00 DOF: 64 RMS: 0.08 # Min/Max residuals: -0.22 0.26 # Exact a, adot, b, bdot, g, gdot: 1.552437E-05 2.232349E-02 1.570044E-07 3.176313E-04 2.311400E-02 1.046589E-03 # Covariance matrix: 1.5736E-13 -2.2814E-14 2.5380E-15 -1.0044E-17 8.9082E-14 -1.3329E-13 -2.2814E-14 2.4784E-13 2.1154E-15 2.4348E-15 1.4120E-13 1.9390E-12 2.5380E-15 2.1154E-15 6.0317E-14 -1.6790E-14 3.7583E-15 1.5345E-14 -1.0044E-17 2.4348E-15 -1.6790E-14 1.4483E-14 1.5233E-15 2.0183E-14 8.9082E-14 1.4120E-13 3.7583E-15 1.5233E-15 1.7407E-13 1.0934E-12 -1.3329E-13 1.9390E-12 1.5345E-14 2.0183E-14 1.0934E-12 1.6182E-11 # lat0 lon0 xBary yBary zBary JD0 -2.411039 48.916444 1.015859 0.000377 0.005931 2457246.131409 # Heliocentric elements and errors Epoch: 2457246.5000 = 2015/08/12 Mean Anomaly: 41.98576 +/- 0.207 Argument of Peri: 242.94574 +/- 0.227 Long of Asc Node: 120.18928 +/- 0.007 Inclination: 2.52606 +/- 0.000 Eccentricity: 0.03090835 +/- 0.0001 Semi-Major Axis: 44.26446223 +/- 0.0025 Time of Perihelion: 2444701.2080 +/- 61.7 Perihelion: 42.89632057 +/- 0.0068 Aphelion: 45.63260390 +/- 0.0068 Period (y) 294.5039 +/- 0.02 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.16380886 +/- 0.0005 Ecliptic Y 31.90924288 +/- 0.0006 Ecliptic Z -1.81999440 +/- 0.0000 Ecliptic XDOT -0.00191271 +/- 0.0000 Ecliptic YDOT 0.00182587 +/- 0.0000 Ecliptic ZDOT 0.00003243 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.26706256 +/- 0.0006 Geocenter to KBO 43.26381582 +/- 0.0008 # Hcoef: 7.65
The following table shows the complete astrometric record for 15VE169. 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 (15VE169) followed by the observatory code and reference code for the source of the astrometry.
2015 08 11.63062 03 08 34.805 +15 07 37.99 23.8w 15VE169 568 C~2nw1 2015 08 12.57765 03 08 35.617 +15 07 38.08 24.1w 15VE169 568 C~2nw1 2015 09 07.53691 03 08 25.989 +15 05 34.25 24.0w 15VE169 568 C~2nw1 2015 09 12.53366 03 08 17.308 +15 04 43.84 24.2w 15VE169 568 C~2nw1 2015 10 07.47747 03 07 05.297 +14 58 47.74 24.3w 15VE169 568 C~2nw1 2015 10 08.48165 03 07 01.529 +14 58 30.48 24.2w 15VE169 568 C~2nw1 2015 10 08.53987 03 07 01.304 +14 58 29.51 24.3w 15VE169 568 C~2nw1 2015 10 08.55151 03 07 01.270 +14 58 29.16 24.4w 15VE169 568 C~2nw1 2015 10 08.56473 03 07 01.210 +14 58 29.05 24.3w 15VE169 568 C~2nw1 2015 11 06.29678 03 04 55.525 +14 49 21.38 23.8r 15VE169 568 C~2nw1 2015 11 06.36009 03 04 55.218 +14 49 20.16 24.2r 15VE169 568 C~2nw1 2015 11 06.43072 03 04 54.874 +14 49 18.66 23.9r 15VE169 568 C~2nw1 2015 11 06.50005 03 04 54.541 +14 49 17.33 23.8r 15VE169 568 C~2nw1 2015 11 07.51946 03 04 49.696 +14 48 57.22 23.9w 15VE169 568 C~2nw1 2015 12 06.41351 03 02 36.754 +14 40 09.25 24.2w 15VE169 568 C~2nw1 2016 01 01.40134 03 01 06.844 +14 34 56.81 24.3w 15VE169 568 C~2nw1 2016 01 07.34755 03 00 53.028 +14 34 17.69 24.2w 15VE169 568 C~2nw1 2016 02 04.27768 03 00 30.330 +14 34 23.51 24.1w 15VE169 568 C~2nw1 2016 02 10.26747 03 00 35.040 +14 35 06.26 24.4w 15VE169 568 C~2nw1 2016 09 26.60468 03 12 49.428 +15 23 31.27 24.3w 15VE169 568 C~2nw1 2016 10 10.41386 03 12 01.717 +15 19 52.22 24.2w 15VE169 568 C~2nw1 2016 10 10.47261 03 12 01.473 +15 19 51.22 24.2w 15VE169 568 C~2nw1 2016 11 03.53341 03 10 16.185 +15 12 23.61 24.1w 15VE169 568 C~2nw1 2016 12 28.38265 03 06 23.598 +14 57 54.85 24.7w 15VE169 568 C~2nw1 2016 12 28.40571 03 06 23.535 +14 57 54.72 24.5w 15VE169 568 C~2nw1 2016 12 29.34821 03 06 20.818 +14 57 46.33 24.2w 15VE169 568 C~2nw1 2016 12 29.36323 03 06 20.770 +14 57 46.15 24.2w 15VE169 568 C~2nw1 2017 01 01.24491 03 06 12.906 +14 57 22.54 24.3w 15VE169 568 C~2nw1 2017 01 01.26044 03 06 12.843 +14 57 22.15 24.2w 15VE169 568 C~2nw1 2017 01 02.35523 03 06 10.010 +14 57 14.10 24.4w 15VE169 568 C~2nw1 2017 01 02.37026 03 06 09.972 +14 57 14.05 24.3w 15VE169 568 C~2nw1 2017 01 26.25843 03 05 34.058 +14 56 09.21 24.2w 15VE169 568 C~2nw1 2021 12 01.254360 03 34 10.438 +16 49 24.33 24.1G 15VE169 G37 C~5J85 2021 12 01.303600 03 34 10.220 +16 49 23.97 15VE169 G37 C~5J85 2021 12 01.379660 03 34 09.831 +16 49 22.65 15VE169 G37 C~5J85
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 -0.06 0.00 -0.00
2 0.0026 0.00 0.01 0.00 -0.01
3 0.0737 0.00 0.06 0.00 0.12
4 0.0873 0.00 -0.02 0.00 0.05
5 0.1556 0.00 -0.00 0.00 -0.04
6 0.1584 0.00 -0.02 0.00 0.04
7 0.1585 0.00 -0.02 0.00 0.08
8 0.1586 0.00 0.14 0.00 -0.07
9 0.1586 0.00 0.01 0.00 0.05
10 0.2373 0.00 0.04 0.00 -0.03
11 0.2375 0.00 0.01 0.00 -0.01
12 0.2376 0.00 -0.04 0.00 -0.12
13 0.2378 0.00 -0.01 0.00 -0.07
14 0.2406 0.00 -0.03 0.00 -0.03
15 0.3197 0.00 0.08 0.00 -0.06
16 0.3909 0.00 -0.04 0.00 0.07
17 0.4072 0.00 -0.01 0.00 0.05
18 0.4836 0.00 -0.04 0.00 -0.03
19 0.5000 0.00 0.03 0.00 0.02
20 1.1279 0.00 -0.08 0.00 -0.05
21 1.1657 0.00 0.14 0.00 0.01
22 1.1659 0.00 -0.04 0.00 0.01
23 1.2318 0.00 -0.03 0.00 -0.01
24 1.3819 0.00 -0.06 0.00 -0.03
25 1.3820 0.00 0.03 0.00 0.05
26 1.3846 0.00 0.03 0.00 0.05
27 1.3846 0.00 -0.03 0.00 0.00
28 1.3925 0.00 0.26 0.00 0.10
29 1.3926 0.00 -0.05 0.00 -0.17
30 1.3955 0.00 -0.04 0.00 -0.00
31 1.3956 0.00 -0.02 0.00 0.06
32 1.4610 0.00 -0.01 0.00 0.00
33 6.3070 0.00 -0.05 0.00 -0.22
34 6.3071 0.00 0.22 0.00 0.18
35 6.3073 0.00 -0.17 0.00 0.04
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.
15VE169 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.713 44.713 44.713 ecceobj 0.041 0.041 0.041 incobj 2.527 2.527 2.527 qmin 41.956 41.957 41.955 qmax 47.039 47.030 47.044 amean 44.367 44.367 44.367 amin 44.025 44.025 44.025 amax 44.734 44.730 44.736 emean 0.037 0.037 0.037 emin 0.022 0.022 0.022 emax 0.052 0.051 0.052 imean 1.408 1.408 1.408 imin 0.818 0.818 0.818 imax 1.984 1.984 1.984 excite_mean 0.045 0.045 0.045 fracstop 1.000 1.000 1.000 cjmean 3.104 3.104 3.104 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 167.0 167.0 167.0 kozaiamp 179.9 179.9 179.9