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: 15VV227 # Created Thu Mar 27 01:10:53 2025 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 0.97y # First observation: 2015/01/21 # Last observation: 2016/01/09 Preliminary a, adot, b, bdot, g, gdot: -0.000197 0.031858 0.000008 -0.002080 0.027454 0.000000 # Chi-squared of fit: 13.66 DOF: 46 RMS: 0.13 # Min/Max residuals: -0.26 0.26 # Exact a, adot, b, bdot, g, gdot: 1.784561E-05 3.217375E-02 -1.432248E-06 -2.073705E-03 2.797343E-02 3.061308E-04 # Covariance matrix: 1.9412E-13 4.0738E-13 -3.6235E-15 -1.2066E-14 3.3183E-13 1.9916E-11 4.0738E-13 5.3618E-11 -9.4243E-14 6.1139E-13 1.5522E-11 1.5338E-09 -3.6235E-15 -9.4243E-14 1.2015E-13 -1.5293E-13 -3.3968E-14 -2.8607E-12 -1.2066E-14 6.1139E-13 -1.5293E-13 3.8495E-13 1.3261E-13 1.6587E-11 3.3183E-13 1.5522E-11 -3.3968E-14 1.3261E-13 4.9409E-12 4.5648E-10 1.9916E-11 1.5338E-09 -2.8607E-12 1.6587E-11 4.5648E-10 4.4394E-08 # lat0 lon0 xBary yBary zBary JD0 -15.136086 139.570897 0.317276 -0.242502 -0.897152 2457043.938318 # Heliocentric elements and errors Epoch: 2457040.5000 = 2015/01/18 Mean Anomaly: 0.04055 +/- 1.158 Argument of Peri: 255.74018 +/- 1.944 Long of Asc Node: 243.73011 +/- 0.006 Inclination: 15.22958 +/- 0.000 Eccentricity: 0.23848332 +/- 0.0004 Semi-Major Axis: 48.12776499 +/- 0.0243 Time of Perihelion: 2457026.7635 +/- 392.3 Perihelion: 36.65009566 +/- 0.0283 Aphelion: 59.60543432 +/- 0.0370 Period (y) 333.8887 +/- 0.25 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -26.77283261 +/- 0.0021 Ecliptic Y 23.22315201 +/- 0.0018 Ecliptic Z -9.33438399 +/- 0.0007 Ecliptic XDOT -0.00202764 +/- 0.0000 Ecliptic YDOT -0.00241799 +/- 0.0000 Ecliptic ZDOT -0.00020365 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.65010340 +/- 0.0019 Geocenter to KBO 35.74821045 +/- 0.0028 # Hcoef: 8.96
The following table shows the complete astrometric record for 15VV227. 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 (15VV227) followed by the observatory code and reference code for the source of the astrometry.
2015 01 21.43754 09 09 10.37 +00 32 28.4 24.2i 15VV227 T09 C~8kvj 2015 01 21.44452 09 09 10.31 +00 32 28.4 24.2i 15VV227 T09 C~8kvj 2015 01 21.45697 09 09 10.26 +00 32 28.6 24.3i 15VV227 T09 C~8kvj 2015 01 21.47327 09 09 10.19 +00 32 28.8 24.3i 15VV227 T09 C~8kvj 2015 01 21.49519 09 09 10.06 +00 32 29.1 24.1i 15VV227 T09 C~8kvj 2015 01 21.51165 09 09 09.98 +00 32 29.5 24.3i 15VV227 T09 C~8kvj 2015 01 21.52917 09 09 09.89 +00 32 29.6 24.3i 15VV227 T09 C~8kvj 2015 03 18.33529 09 04 40.59 +00 56 31.3 25.1r 15VV227 T09 C~8kvj 2015 03 18.34385 09 04 40.55 +00 56 31.3 24.7r 15VV227 T09 C~8kvj 2015 03 18.36546 09 04 40.47 +00 56 32.1 25.3r 15VV227 T09 C~8kvj 2015 03 18.37860 09 04 40.44 +00 56 32.6 24.7r 15VV227 T09 C~8kvj 2015 03 18.38081 09 04 40.41 +00 56 32.6 24.8r 15VV227 T09 C~8kvj 2015 03 25.38568 09 04 17.59 +01 00 14.9 25.0g 15VV227 T09 C~8kvj 2015 03 25.39368 09 04 17.57 +01 00 15.4 25.3g 15VV227 T09 C~8kvj 2015 03 25.41289 09 04 17.51 +01 00 15.9 25.4g 15VV227 T09 C~8kvj 2015 11 08.54855 09 19 00.85 +00 05 23.4 24.7r 15VV227 T09 C~8kvj 2015 11 08.56993 09 19 00.87 +00 05 22.5 24.4r 15VV227 T09 C~8kvj 2015 11 08.58902 09 19 00.88 +00 05 22.0 25.0r 15VV227 T09 C~8kvj 2015 11 08.63991 09 19 00.97 +00 05 20.5 25.1r 15VV227 T09 C~8kvj 2015 11 14.60004 09 19 06.17 +00 02 11.6 25.3g 15VV227 T09 C~8kvj 2015 11 14.63222 09 19 06.18 +00 02 10.9 25.0g 15VV227 T09 C~8kvj 2015 11 14.63646 09 19 06.17 +00 02 10.9 24.7g 15VV227 T09 C~8kvj 2016 01 09.47070 09 17 02.55 -00 09 54.2 24.1y 15VV227 T09 C~8kvj 2016 01 09.53920 09 17 02.25 -00 09 53.8 24.1y 15VV227 T09 C~8kvj 2016 01 09.56090 09 17 02.13 -00 09 53.3 23.9y 15VV227 T09 C~8kvj 2016 01 09.57457 09 17 02.06 -00 09 53.3 23.9y 15VV227 T09 C~8kvj
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 0.07 0.00 0.05
2 0.0000 -0.86 -0.24 -0.27 -0.15
3 0.0001 -1.63 -0.04 -0.31 -0.06
4 0.0001 -2.69 0.18 -0.44 -0.02
5 0.0002 -4.64 -0.04 -0.74 -0.10
6 0.0002 -5.91 -0.01 -0.72 0.08
7 0.0003 -7.23 0.05 -1.04 -0.05
8 0.1530 -4293.91 0.03 150.42 0.18
9 0.1531 -4294.48 -0.01 150.24 -0.12
10 0.1531 -4295.87 -0.07 150.64 -0.02
11 0.1532 -4296.45 0.16 150.98 0.13
12 0.1532 -4296.88 -0.13 150.84 -0.03
13 0.1723 -4690.53 0.02 259.21 -0.08
14 0.1724 -4690.97 0.01 259.59 0.18
15 0.1724 -4691.98 0.02 259.80 0.07
16 0.7970 8938.80 -0.05 1135.28 0.05
17 0.7971 8939.36 -0.05 1134.51 -0.15
18 0.7971 8939.65 -0.26 1134.08 -0.08
19 0.7973 8941.40 0.17 1133.06 0.25
20 0.8136 9073.21 0.26 976.54 -0.23
21 0.8137 9073.56 0.11 975.91 0.00
22 0.8137 9073.42 -0.10 975.87 0.07
23 0.9666 7523.38 0.05 -278.01 -0.15
24 0.9667 7518.97 0.26 -279.00 -0.08
25 0.9668 7517.10 -0.15 -279.06 0.18
26 0.9668 7516.09 -0.23 -279.38 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.
15VV227 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.847 48.070 47.670 ecceobj 0.233 0.238 0.230 incobj 15.208 15.209 15.207 qmin 35.099 35.400 35.255 qmax 61.230 61.279 61.490 amean 47.795 47.797 47.796 amin 47.167 47.079 47.112 amax 48.520 48.603 48.603 emean 0.235 0.238 0.238 emin 0.205 0.213 0.208 emax 0.264 0.262 0.265 imean 15.717 16.267 16.252 imin 14.779 15.588 15.539 imax 16.665 17.061 17.181 excite_mean 0.359 0.367 0.368 fracstop 1.000 1.000 1.000 cjmean 2.987 2.979 2.978 libcent 0 179.4 179.1 181.3 libamp 0 151.0 165.7 164.1 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 191.5 188.1 192.5 kozaiamp 180.0 180.0 180.0