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: 17VO34 # Created Tue Apr 1 01:11:08 2025 # Orbit generated from Bernstein formalism # Fitting 10 observations of 10 # Arc: 2.04y # First observation: 2017/11/15 # Last observation: 2019/11/30 Preliminary a, adot, b, bdot, g, gdot: -0.000001 0.008812 -0.000014 0.006937 0.016371 0.000000 # Chi-squared of fit: 2.46 DOF: 14 RMS: 0.09 # Min/Max residuals: -0.20 0.13 # Exact a, adot, b, bdot, g, gdot: 8.733554E-06 8.749947E-03 7.375510E-06 6.892247E-03 1.622737E-02 -3.083992E-03 # Covariance matrix: 7.2283E-13 -2.7240E-13 1.3607E-14 -5.2738E-14 1.1954E-12 -3.8237E-12 -2.7240E-13 4.0634E-12 -7.9916E-13 2.6386E-12 9.2557E-12 1.8821E-10 1.3607E-14 -7.9916E-13 7.0698E-13 -9.5617E-13 -1.8225E-12 -4.2046E-11 -5.2738E-14 2.6386E-12 -9.5617E-13 2.3021E-12 5.9784E-12 1.3918E-10 1.1954E-12 9.2557E-12 -1.8225E-12 5.9784E-12 2.7890E-11 4.2612E-10 -3.8237E-12 1.8821E-10 -4.2046E-11 1.3918E-10 4.2612E-10 9.9302E-09 # lat0 lon0 xBary yBary zBary JD0 -15.090222 62.475608 0.164946 -0.255293 -0.947563 2458072.756141 # Heliocentric elements and errors Epoch: 2458070.5000 = 2017/11/13 Mean Anomaly: 247.70712 +/- 1.306 Argument of Peri: 118.18242 +/- 0.948 Long of Asc Node: 80.25481 +/- 0.003 Inclination: 40.74297 +/- 0.004 Eccentricity: 0.33052070 +/- 0.0040 Semi-Major Axis: 52.11763573 +/- 0.1906 Time of Perihelion: 2500937.7100 +/- 439.8 Perihelion: 34.89167814 +/- 0.2456 Aphelion: 69.34359332 +/- 0.3292 Period (y) 376.2576 +/- 2.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.09346997 +/- 0.0090 Ecliptic Y 53.55332012 +/- 0.0172 Ecliptic Z -16.04287805 +/- 0.0052 Ecliptic XDOT -0.00139597 +/- 0.0000 Ecliptic YDOT 0.00049984 +/- 0.0000 Ecliptic ZDOT 0.00125808 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 62.56656525 +/- 0.0153 Geocenter to KBO 61.62426392 +/- 0.0201 # Hcoef: 7.26
The following table shows the complete astrometric record for 17VO34. 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 (17VO34) followed by the observatory code and reference code for the source of the astrometry.
2017 11 15.25534 04 13 24.330 +05 50 20.38 25.0r 17VO34 807 C~31M0 2017 11 16.25421 04 13 20.846 +05 50 12.57 24.9r 17VO34 807 C~31M0 2018 12 03.13748 04 14 02.587 +06 17 28.06 17VO34 304 C~31M0 2018 12 03.29177 04 14 02.028 +06 17 27.47 17VO34 304 C~31M0 2018 12 04.08329 04 13 59.197 +06 17 24.69 25.0r 17VO34 304 C~31M0 2018 12 04.16667 04 13 58.917 +06 17 24.19 17VO34 304 C~31M0 2018 12 11.12472 04 13 34.358 +06 17 07.34 17VO34 304 C~31M0 2018 12 12.23953 04 13 30.477 +06 17 05.97 25.0r 17VO34 304 C~31M0 2019 11 29.26449 04 15 59.083 +06 46 50.65 25.4r 17VO34 304 C~3d0A 2019 11 30.25964 04 15 55.491 +06 46 46.03 25.3r 17VO34 304 C~3d0A
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 -0.04 0.00 -0.14
2 0.0027 -52.54 0.05 1.93 0.13
3 1.0483 861.38 0.04 1494.37 -0.01
4 1.0487 853.08 0.03 1495.32 -0.02
5 1.0509 811.08 -0.20 1500.38 0.08
6 1.0511 806.89 0.08 1500.66 -0.19
7 1.0701 443.89 0.04 1551.70 0.05
8 1.0732 386.77 -0.00 1561.04 0.11
9 2.0370 2892.56 0.04 2907.69 -0.04
10 2.0397 2839.11 -0.03 2912.96 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.
17VO34 quality flag:2 Type: SCATNEAR CENTAURS SCATNEAR axisobj 52.562 53.133 52.044 ecceobj 0.321 0.333 0.310 incobj 40.519 40.527 40.511 qmin 34.434 28.510 34.022 qmax 70.905 78.709 70.322 amean 52.307 52.968 51.755 amin 51.737 52.194 51.115 amax 52.982 53.931 52.452 emean 0.316 0.418 0.308 emin 0.293 0.332 0.277 emax 0.340 0.463 0.341 imean 39.476 36.571 39.372 imin 38.921 34.946 38.679 imax 40.000 39.360 40.113 excite_mean 0.710 0.729 0.705 fracstop 1.000 1.000 1.000 cjmean 2.507 2.502 2.511 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 182.3 166.6 182.7 kozaiamp 180.0 94.0 180.0