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: 14UZ228
# Created Thu Apr 18 01:16:39 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 34 observations of 34
# Arc: 6.21y
# First observation: 2013/08/09
# Last observation: 2019/10/26
# Chi-squared of fit: 11.09 DOF: 62 RMS: 0.10
# Min/Max residuals: -0.44 0.22
# Exact a, adot, b, bdot, g, gdot:
1.882910E-05 3.643401E-02 4.921122E-07 2.915736E-04 3.080753E-02 -3.625962E-03
# Covariance matrix:
2.4959E-13 -1.5109E-13 4.8643E-16 -2.0102E-15 6.9891E-14 -5.8130E-13
-1.5109E-13 2.1127E-13 -2.0390E-15 2.5950E-15 3.0544E-14 8.9398E-13
4.8643E-16 -2.0390E-15 7.5672E-14 -2.6813E-14 -1.1499E-15 -9.6252E-15
-2.0102E-15 2.5950E-15 -2.6813E-14 2.1293E-14 1.1375E-16 1.2197E-14
6.9891E-14 3.0544E-14 -1.1499E-15 1.1375E-16 9.2101E-14 1.4711E-13
-5.8130E-13 8.9398E-13 -9.6252E-15 1.2197E-14 1.4711E-13 4.2061E-12
# lat0 lon0 xBary yBary zBary JD0
2.620496 28.939116 0.966702 0.014266 -0.310978 2456514.012218
# Heliocentric elements and errors
Epoch: 2456514.5000 = 2013/08/10
Mean Anomaly: 331.18910 +/- 0.010
Argument of Peri: 122.50282 +/- 0.018
Long of Asc Node: 309.03219 +/- 0.005
Inclination: 2.65023 +/- 0.000
Eccentricity: 0.21692032 +/- 0.0000
Semi-Major Axis: 39.74878268 +/- 0.0021
Time of Perihelion: 2463840.0195 +/- 7.1
Perihelion: 31.12646419 +/- 0.0022
Aphelion: 48.37110118 +/- 0.0030
Period (y) 250.6074 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 29.11661287 +/- 0.0003
Ecliptic Y 14.99780021 +/- 0.0001
Ecliptic Z 1.48411949 +/- 0.0000
Ecliptic XDOT -0.00185570 +/- 0.0000
Ecliptic YDOT 0.00267635 +/- 0.0000
Ecliptic ZDOT 0.00001129 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 32.78595656 +/- 0.0003
Geocenter to KBO 32.45967807 +/- 0.0003
# Hcoef: 8.82
The following table shows the complete astrometric record for 14UZ228. 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 (14UZ228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.51144 01 43 46.209 +13 32 44.91 24.1r 14UZ228 568 C~2SDi 2013 08 09.55415 01 43 46.168 +13 32 45.11 24.3r 14UZ228 568 C~2SDi 2013 10 08.50929 01 40 00.135 +13 15 13.04 23.6r 14UZ228 568 C~2SDi 2013 11 01.50542 01 37 41.663 +13 02 12.75 23.8r 14UZ228 568 C~2SDi 2013 11 28.29208 01 35 27.871 +12 48 30.02 23.5r 14UZ228 568 C~2SDi 2013 11 29.24926 01 35 23.981 +12 48 04.36 23.8r 14UZ228 568 C~2SDi 2013 12 29.26359 01 34 08.092 +12 38 39.87 24.5r 14UZ228 568 C~2SDi 2014 01 02.24545 01 34 05.587 +12 38 05.50 23.8r 14UZ228 568 C~2SDi 2014 01 03.21549 01 34 05.256 +12 37 58.75 24.0r 14UZ228 568 C~2SDi 2014 01 03.25792 01 34 05.252 +12 37 58.42 24.1r 14UZ228 568 C~2SDi 2014 01 03.32340 01 34 05.237 +12 37 57.85 23.8r 14UZ228 568 C~2SDi 2014 07 26.53763 01 51 48.516 +14 16 53.98 24.0r 14UZ228 568 C~2SDi 2014 07 26.58079 01 51 48.551 +14 16 54.49 23.9r 14UZ228 568 C~2SDi 2014 08 24.47811 01 51 26.402 +14 17 23.33 23.8r 14UZ228 568 C~2SDi 2014 08 24.54804 01 51 26.225 +14 17 22.72 24.2r 14UZ228 568 C~2SDi 2014 08 30.45339 01 51 10.405 +14 16 23.71 23.8r 14UZ228 568 C~2SDi 2014 08 30.55998 01 51 10.042 +14 16 22.33 23.5r 14UZ228 568 C~2SDi 2014 09 18.47852 01 49 57.359 +14 10 58.48 23.9r 14UZ228 568 C~2SDi 2014 09 18.52126 01 49 57.158 +14 10 57.52 23.8r 14UZ228 568 C~2SDi 2014 09 23.51956 01 49 33.209 +14 09 01.42 24.0r 14UZ228 568 C~2SDi 2014 10 22.30273 01 46 52.899 +13 55 02.32 23.6r 14UZ228 568 C~2SDi 2014 10 22.34832 01 46 52.635 +13 55 00.80 24.0r 14UZ228 568 C~2SDi 2014 10 22.39209 01 46 52.369 +13 54 59.38 24.1r 14UZ228 568 C~2SDi 2014 10 25.50750 01 46 34.011 +13 53 17.78 24.2r 14UZ228 568 C~2SDi 2014 11 20.23887 01 44 11.953 +13 39 31.53 23.8r 14UZ228 568 C~2SDi 2014 11 20.37921 01 44 11.250 +13 39 27.34 24.0r 14UZ228 568 C~2SDi 2014 11 21.28243 01 44 06.850 +13 39 00.48 24.1r 14UZ228 568 C~2SDi 2014 11 21.43749 01 44 06.085 +13 38 55.75 24.0r 14UZ228 568 C~2SDi 2015 01 24.25093 01 42 17.770 +13 24 02.62 24.0r 14UZ228 568 C~2SDi 2015 01 24.31671 01 42 17.884 +13 24 02.98 24.4r 14UZ228 568 C~2SDi 2015 02 19.26459 01 43 49.194 +13 30 28.84 23.8r 14UZ228 568 C~2SDi 2015 12 07.41198 01 51 10.873 +14 18 14.20 24.0w 14UZ228 568 C~2SDi 2019 10 26.378030 02 29 19.914 +17 36 40.76 23.8G 14UZ228 G37 C~3coM 2019 10 26.454950 02 29 19.414 +17 36 38.66 14UZ228 G37 C~3coM
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 0.00 0.00 -0.08
2 0.0001 0.00 0.08 0.00 0.13
3 0.1643 0.00 0.17 0.00 -0.16
4 0.2300 0.00 0.03 0.00 0.03
5 0.3033 0.00 -0.01 0.00 0.21
6 0.3059 0.00 -0.09 0.00 0.05
7 0.3881 0.00 -0.12 0.00 -0.00
8 0.3990 0.00 -0.00 0.00 0.02
9 0.4017 0.00 -0.18 0.00 0.04
10 0.4018 0.00 -0.00 0.00 -0.01
11 0.4019 0.00 0.13 0.00 -0.13
12 0.9611 0.00 0.01 0.00 -0.04
13 0.9612 0.00 0.01 0.00 0.02
14 1.0403 0.00 0.05 0.00 0.02
15 1.0405 0.00 -0.01 0.00 -0.03
16 1.0567 0.00 0.07 0.00 0.02
17 1.0569 0.00 -0.44 0.00 -0.11
18 1.1087 0.00 -0.05 0.00 0.01
19 1.1089 0.00 -0.04 0.00 -0.01
20 1.1225 0.00 -0.03 0.00 -0.03
21 1.2013 0.00 0.09 0.00 0.04
22 1.2015 0.00 0.22 0.00 -0.01
23 1.2016 0.00 0.17 0.00 -0.02
24 1.2101 0.00 -0.01 0.00 -0.10
25 1.2806 0.00 -0.04 0.00 -0.07
26 1.2810 0.00 -0.00 0.00 -0.05
27 1.2834 0.00 0.03 0.00 0.12
28 1.2838 0.00 0.09 0.00 0.01
29 1.4586 0.00 0.02 0.00 0.06
30 1.4587 0.00 -0.19 0.00 0.03
31 1.5298 0.00 -0.02 0.00 -0.00
32 2.3269 0.00 0.10 0.00 0.03
33 6.2118 0.00 0.16 0.00 -0.05
34 6.2120 0.00 -0.16 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.
14UZ228 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.934 39.934 39.934 ecceobj 0.218 0.218 0.218 incobj 2.649 2.649 2.649 qmin 30.646 30.643 30.646 qmax 48.960 48.956 48.963 amean 39.457 39.457 39.457 amin 38.938 38.939 38.940 amax 40.026 40.037 40.030 emean 0.206 0.206 0.206 emin 0.189 0.189 0.189 emax 0.225 0.224 0.225 imean 4.097 4.097 4.097 imin 3.523 3.523 3.522 imax 4.725 4.725 4.725 excite_mean 0.218 0.218 0.218 fracstop 1.000 1.000 1.000 cjmean 2.997 2.997 2.997 libcent 0 179.8 179.7 180.0 libamp 0 108.9 109.4 108.9 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 191.7 191.7 191.7 kozaiamp 180.0 180.0 179.9