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: 14UQ250 # Created Sun Dec 22 02:10:09 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 27 observations of 27 # Arc: 6.20y # First observation: 2014/10/31 # Last observation: 2021/01/11 # Chi-squared of fit: 13.64 DOF: 48 RMS: 0.13 # Min/Max residuals: -0.44 0.25 # Exact a, adot, b, bdot, g, gdot: 1.732386E-05 2.987530E-02 5.260259E-06 9.042358E-03 2.704902E-02 -5.708660E-03 # Covariance matrix: 2.1683E-13 -1.2882E-13 2.5903E-14 -4.3714E-14 1.0364E-13 -6.4356E-13 -1.2882E-13 1.3415E-13 -3.5300E-14 4.9730E-14 -4.5321E-14 7.6252E-13 2.5903E-14 -3.5300E-14 1.3012E-13 -4.6001E-14 2.7715E-15 -2.2324E-13 -4.3714E-14 4.9730E-14 -4.6001E-14 3.6651E-14 -3.0153E-14 3.2256E-13 1.0364E-13 -4.5321E-14 2.7715E-15 -3.0153E-14 2.5933E-13 -3.6527E-13 -6.4356E-13 7.6252E-13 -2.2324E-13 3.2256E-13 -3.6527E-13 4.9160E-12 # lat0 lon0 xBary yBary zBary JD0 -28.361191 32.335283 -0.088192 -0.470249 -0.871515 2456961.785418 # Heliocentric elements and errors Epoch: 2456962.5000 = 2014/11/01 Mean Anomaly: 341.88362 +/- 0.007 Argument of Peri: 338.61283 +/- 0.016 Long of Asc Node: 89.13386 +/- 0.000 Inclination: 32.09692 +/- 0.000 Eccentricity: 0.35911210 +/- 0.0001 Semi-Major Axis: 55.49076638 +/- 0.0069 Time of Perihelion: 2464560.4853 +/- 26.9 Perihelion: 35.56336077 +/- 0.0056 Aphelion: 75.41817198 +/- 0.0099 Period (y) 413.3703 +/- 0.08 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 28.27442299 +/- 0.0005 Ecliptic Y 18.00666464 +/- 0.0003 Ecliptic Z -17.56163984 +/- 0.0003 Ecliptic XDOT -0.00168408 +/- 0.0000 Ecliptic YDOT 0.00251074 +/- 0.0000 Ecliptic ZDOT 0.00107998 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.84314013 +/- 0.0004 Geocenter to KBO 36.97007284 +/- 0.0007 # Hcoef: 7.50
The following table shows the complete astrometric record for 14UQ250. 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 (14UQ250) followed by the observatory code and reference code for the source of the astrometry.
2014 10 31.28464 02 39 26.34 -14 23 42.4 23.4r 14UQ250 W84 C~3coQ 2014 11 03.31066 02 39 10.108 -14 24 33.50 22.9i 14UQ250 W84 C~4yUz 2014 12 12.19982 02 35 58.900 -14 23 17.27 23.1z 14UQ250 W84 C~4yUz 2014 12 12.20119 02 35 58.890 -14 23 17.18 23.5i 14UQ250 W84 C~4yUz 2014 12 14.13695 02 35 51.326 -14 22 36.09 24.3g 14UQ250 W84 C~4yUz 2014 12 15.19793 02 35 47.297 -14 22 12.82 23.9g 14UQ250 W84 C~4yUz 2014 12 16.19628 02 35 43.580 -14 21 48.97 23.1i 14UQ250 W84 C~4yUz 2014 12 24.17015 02 35 16.800 -14 18 09.87 23.4r 14UQ250 W84 C~4yUz 2015 11 21.23988 02 43 29.129 -13 21 55.11 22.8z 14UQ250 W84 C~4yUz 2015 11 30.23994 02 42 44.099 -13 21 26.28 22.9i 14UQ250 W84 C~4yUz 2015 12 05.22567 02 42 20.719 -13 20 37.81 23.2r 14UQ250 W84 C~4yUz 2015 12 05.22705 02 42 20.727 -13 20 37.72 23.9g 14UQ250 W84 C~4yUz 2016 10 06.23158 02 53 15.63 -12 00 40.0 23.7V 14UQ250 W84 C~3coQ 2016 10 06.35817 02 53 15.06 -12 00 44.3 14UQ250 W84 C~3coQ 2016 10 07.30966 02 53 10.83 -12 01 16.6 14UQ250 W84 C~3coQ 2016 11 22.21560 02 49 13.133 -12 15 44.90 23.3r 14UQ250 W84 C~4yUz 2016 11 22.21697 02 49 13.141 -12 15 44.94 23.4g 14UQ250 W84 C~4yUz 2017 09 07.35855 03 00 42.927 -10 34 37.32 23.1z 14UQ250 W84 C~4yUz 2017 10 29.33104 02 57 16.595 -11 03 39.12 22.7i 14UQ250 W84 C~4yUz 2017 10 29.33242 02 57 16.579 -11 03 39.20 23.1r 14UQ250 W84 C~4yUz 2017 10 29.33380 02 57 16.564 -11 03 39.08 23.8g 14UQ250 W84 C~4yUz 2017 11 01.16058 02 57 01.439 -11 04 35.82 22.6z 14UQ250 W84 C~4yUz 2017 12 22.16896 02 52 51.724 -11 02 28.91 22.6i 14UQ250 W84 C~4yUz 2017 12 22.17034 02 52 51.723 -11 02 28.96 23.2r 14UQ250 W84 C~4yUz 2021 01 11.122750 03 09 27.934 -07 25 34.26 23.0G 14UQ250 G37 C~4UEd 2021 01 11.187740 03 09 27.794 -07 25 31.98 14UQ250 G37 C~4UEd 2021 01 11.238960 03 09 27.651 -07 25 30.67 14UQ250 G37 C~4UEd
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 0.03 0.00 0.02
2 0.0083 0.00 0.04 0.00 0.05
3 0.1148 0.00 0.05 0.00 -0.04
4 0.1148 0.00 -0.01 0.00 0.02
5 0.1201 0.00 -0.07 0.00 0.25
6 0.1230 0.00 -0.00 0.00 -0.36
7 0.1257 0.00 -0.05 0.00 0.08
8 0.1475 0.00 -0.04 0.00 0.01
9 1.0567 0.00 0.09 0.00 0.02
10 1.0813 0.00 0.02 0.00 0.03
11 1.0950 0.00 -0.08 0.00 -0.10
12 1.0950 0.00 0.14 0.00 -0.03
13 1.9328 0.00 0.04 0.00 -0.02
14 1.9331 0.00 0.04 0.00 0.01
15 1.9357 0.00 0.07 0.00 0.03
16 2.0614 0.00 -0.04 0.00 -0.04
17 2.0614 0.00 0.18 0.00 -0.08
18 2.8530 0.00 -0.05 0.00 0.01
19 2.9953 0.00 0.12 0.00 -0.02
20 2.9953 0.00 -0.00 0.00 -0.07
21 2.9953 0.00 -0.12 0.00 0.08
22 3.0031 0.00 -0.23 0.00 0.17
23 3.1427 0.00 -0.09 0.00 0.11
24 3.1427 0.00 -0.03 0.00 0.02
25 6.1981 0.00 0.13 0.00 0.22
26 6.1982 0.00 0.21 0.00 0.13
27 6.1984 0.00 -0.22 0.00 -0.44
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.
14UQ250 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE Type: 5:2EII 5:2EII 5:2EII axisobj 56.137 56.136 56.137 ecceobj 0.364 0.364 0.364 incobj 32.104 32.104 32.104 qmin 33.090 33.083 33.099 qmax 78.944 78.976 79.011 amean 55.461 55.461 55.461 amin 54.793 54.792 54.798 amax 56.327 56.327 56.300 emean 0.383 0.384 0.383 emin 0.350 0.350 0.350 emax 0.404 0.404 0.404 imean 29.428 29.424 29.436 imin 28.722 28.718 28.727 imax 30.750 30.750 30.750 excite_mean 0.623 0.623 0.623 fracstop 1.000 1.000 1.000 cjmean 2.727 2.727 2.727 libcent 0 179.6 179.6 179.9 libamp 0 100.6 100.5 100.6 libcent 1 180.3 180.3 180.7 libamp 1 142.6 142.4 143.0 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 195.7 195.9 195.0 kozaiamp 180.0 180.0 180.0