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: 14YQ99 # Created Tue Apr 1 01:10:17 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 34 observations of 34 # Arc: 24.90y # First observation: 2000/04/04 # Last observation: 2025/02/27 # Chi-squared of fit: 47.29 DOF: 62 RMS: 0.21 # Min/Max residuals: -0.33 0.90 # Exact a, adot, b, bdot, g, gdot: 1.952718E-05 3.492174E-02 2.751522E-06 3.496801E-03 2.836531E-02 -5.006850E-03 # Covariance matrix: 2.1457E-13 -1.7064E-14 7.5556E-15 -9.1440E-16 -4.6657E-14 -8.0872E-15 -1.7064E-14 2.9303E-15 -1.0080E-15 2.5233E-16 5.5973E-16 2.0126E-15 7.5556E-15 -1.0080E-15 1.4374E-13 -7.4405E-15 -5.0081E-15 -8.3936E-16 -9.1440E-16 2.5233E-16 -7.4405E-15 4.9710E-16 -5.3209E-17 2.0617E-16 -4.6657E-14 5.5973E-16 -5.0081E-15 -5.3209E-17 5.9581E-14 6.3736E-16 -8.0872E-15 2.0126E-15 -8.3936E-16 2.0617E-16 6.3736E-16 1.6477E-15 # lat0 lon0 xBary yBary zBary JD0 10.011999 109.000763 -1.004830 0.012630 -0.072772 2451638.674134 # Heliocentric elements and errors Epoch: 2451638.5000 = 2000/04/04 Mean Anomaly: 351.58110 +/- 0.001 Argument of Peri: 83.89791 +/- 0.001 Long of Asc Node: 49.15387 +/- 0.000 Inclination: 11.33164 +/- 0.000 Eccentricity: 0.41305064 +/- 0.0000 Semi-Major Axis: 58.93907293 +/- 0.0041 Time of Perihelion: 2455503.5595 +/- 16.7 Perihelion: 34.59425114 +/- 0.0031 Aphelion: 83.28389472 +/- 0.0061 Period (y) 452.4943 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -12.27151301 +/- 0.0001 Ecliptic Y 32.57174679 +/- 0.0003 Ecliptic Z 6.12923471 +/- 0.0001 Ecliptic XDOT -0.00301916 +/- 0.0000 Ecliptic YDOT -0.00159619 +/- 0.0000 Ecliptic ZDOT 0.00024848 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.34234971 +/- 0.0003 Geocenter to KBO 35.25447696 +/- 0.0003 # Hcoef: 6.91
The following table shows the complete astrometric record for 14YQ99. 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 (14YQ99) followed by the observatory code and reference code for the source of the astrometry.
2000 04 04.173391 07 28 51.28 +31 59 51.6 22.4r 14YQ99 645 C~6VAs 2000 04 04.174221 07 28 51.28 +31 59 51.8 22.3i 14YQ99 645 C~6VAs 2000 04 04.176708 07 28 51.28 +31 59 51.8 23.0g 14YQ99 645 C~6VAs 2001 02 22.115008 07 39 55.90 +31 58 19.6 22.4r 14YQ99 645 C~6VAs 2001 02 22.115837 07 39 55.91 +31 58 19.3 22.1i 14YQ99 645 C~6VAs 2001 02 22.118325 07 39 55.89 +31 58 19.3 23.0g 14YQ99 645 C~6VAs 2001 11 21.392079 07 58 08.94 +31 19 19.6 22.4r 14YQ99 645 C~6VAs 2001 11 21.392908 07 58 08.95 +31 19 19.7 22.1i 14YQ99 645 C~6VAs 2001 11 21.395396 07 58 08.94 +31 19 19.8 23.0g 14YQ99 645 C~6VAs 2011 01 31.50108 09 18 57.30 +27 51 13.0 22.7g 14YQ99 F51 C~6bze 2011 01 31.51606 09 18 57.21 +27 51 13.5 22.7g 14YQ99 F51 C~6bze 2014 12 31.313936 09 57 57.82 +24 44 26.4 22.3r 14YQ99 W84 C~6VAs 2015 04 08.043996 09 49 49.68 +25 21 27.7 21.8z 14YQ99 W84 C~6VAs 2015 04 12.055551 09 49 38.32 +25 21 08.7 22.3r 14YQ99 W84 C~6VAs 2015 04 12.056771 09 49 38.31 +25 21 08.7 22.9g 14YQ99 W84 C~6VAs 2016 01 09.319065 10 06 08.38 +24 02 04.9 22.3r 14YQ99 W84 C~6VAs 2016 01 09.320849 10 06 08.39 +24 02 04.9 23.0g 14YQ99 W84 C~6VAs 2017 01 11.276536 10 14 33.22 +23 14 47.7 22.0z 14YQ99 W84 C~6VAs 2017 02 24.34006 10 10 41.120 +23 38 57.95 22.5R 14YQ99 568 C~6bze 2017 02 24.53161 10 10 39.983 +23 39 02.63 22.6R 14YQ99 568 C~6bze 2017 03 31.070081 10 07 42.92 +23 48 40.5 22.3r 14YQ99 W84 C~6VAs 2018 02 14.239030 10 20 13.21 +22 43 57.7 22.9g 14YQ99 W84 C~6VAs 2018 02 15.250335 10 20 07.46 +22 44 30.0 22.3r 14YQ99 W84 C~6VAs 2018 03 14.126512 10 17 36.39 +22 56 03.2 23.0g 14YQ99 W84 C~6VAs 2018 03 14.128592 10 17 36.37 +22 56 03.4 22.3r 14YQ99 W84 C~6VAs 2019 02 04.272784 10 29 31.21 +21 46 50.4 23.0g 14YQ99 W84 C~6VAs 2019 02 05.263533 10 29 26.01 +21 47 25.0 14YQ99 W84 C~6VAs 2020 03 17.165569 10 33 55.44 +21 14 35.3 22.1i 14YQ99 W84 C~6VAs 2021 01 24.309759 10 46 33.04 +19 54 25.5 22.1i 14YQ99 W84 C~6VAs 2021 04 28.099668 10 39 16.62 +20 26 49.3 22.1i 14YQ99 W84 C~6VAs 2021 06 01.021367 10 39 04.20 +20 16 07.2 22.2i 14YQ99 W84 C~6VAs 2025 02 27.364056 11 14 25.918 +16 32 10.57 22.1w 14YQ99 F51 C~8iZX 2025 02 27.376765 11 14 25.873 +16 32 10.81 22.1w 14YQ99 F51 C~8iZX 2025 02 27.402306 11 14 25.730 +16 32 11.75 22.2w 14YQ99 F51 C~8iZX
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 -0.16
2 0.0000 0.00 -0.05 0.00 0.05
3 0.0000 0.00 -0.07 0.00 0.10
4 0.8869 0.00 0.00 0.00 0.08
5 0.8869 0.00 0.21 0.00 -0.22
6 0.8869 0.00 0.09 0.00 -0.22
7 1.6324 0.00 -0.13 0.00 -0.02
8 1.6324 0.00 0.05 0.00 0.06
9 1.6324 0.00 0.01 0.00 0.10
10 10.8264 0.00 -0.24 0.00 0.01
11 10.8264 0.00 -0.19 0.00 0.10
12 14.7410 0.00 -0.09 0.00 -0.11
13 15.0085 0.00 -0.25 0.00 -0.02
14 15.0195 0.00 -0.15 0.00 0.01
15 15.0195 0.00 -0.25 0.00 0.02
16 15.7649 0.00 -0.09 0.00 -0.17
17 15.7649 0.00 0.17 0.00 -0.23
18 16.7724 0.00 0.18 0.00 0.08
19 16.8930 0.00 0.73 0.00 0.90
20 16.8935 0.00 0.58 0.00 0.48
21 16.9881 0.00 -0.09 0.00 -0.01
22 17.8647 0.00 0.12 0.00 -0.08
23 17.8674 0.00 0.12 0.00 0.08
24 17.9410 0.00 -0.01 0.00 -0.13
25 17.9410 0.00 -0.14 0.00 0.03
26 18.8367 0.00 0.04 0.00 -0.13
27 18.8394 0.00 0.01 0.00 -0.10
28 19.9507 0.00 -0.14 0.00 -0.06
29 20.8080 0.00 -0.03 0.00 -0.16
30 21.0648 0.00 -0.12 0.00 -0.08
31 21.1577 0.00 0.08 0.00 -0.01
32 24.9013 0.00 -0.33 0.00 0.01
33 24.9013 0.00 0.01 0.00 -0.17
34 24.9014 0.00 -0.08 0.00 -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.
14YQ99 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 58.855 58.855 58.855 ecceobj 0.412 0.412 0.412 incobj 11.332 11.332 11.332 qmin 33.589 33.564 33.949 qmax 86.171 84.694 85.903 amean 58.367 58.217 58.827 amin 56.965 56.598 57.783 amax 60.180 59.697 60.236 emean 0.406 0.404 0.405 emin 0.383 0.383 0.389 emax 0.432 0.420 0.426 imean 10.727 11.128 11.477 imin 9.314 9.813 10.075 imax 12.079 12.290 12.395 excite_mean 0.447 0.448 0.451 fracstop 1.000 1.000 1.000 cjmean 3.016 3.013 3.017 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 184.7 181.9 166.9 kozaiamp 180.0 179.9 179.9