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: 14UU228
# Created Wed Apr 24 01:16:30 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 6.21y
# First observation: 2013/08/09
# Last observation: 2019/10/26
# Chi-squared of fit: 8.66 DOF: 48 RMS: 0.10
# Min/Max residuals: -0.20 0.25
# Exact a, adot, b, bdot, g, gdot:
2.127634E-05 4.684028E-02 -3.148611E-07 -2.471661E-03 3.538928E-02 -3.514712E-03
# Covariance matrix:
2.5147E-13 -1.8730E-13 -6.4276E-15 8.7224E-15 7.1314E-14 -5.7167E-13
-1.8730E-13 3.1617E-13 9.5152E-15 -1.6300E-14 3.8757E-14 1.0351E-12
-6.4276E-15 9.5152E-15 8.2997E-14 -2.5653E-14 -1.4728E-16 3.3399E-14
8.7224E-15 -1.6300E-14 -2.5653E-14 2.1753E-14 -2.4049E-15 -5.7121E-14
7.1314E-14 3.8757E-14 -1.4728E-16 -2.4049E-15 1.1261E-13 1.3206E-13
-5.7167E-13 1.0351E-12 3.3399E-14 -5.7121E-14 1.3206E-13 3.6280E-12
# lat0 lon0 xBary yBary zBary JD0
3.110632 28.047626 0.961791 0.017731 -0.325689 2456514.003748
# Heliocentric elements and errors
Epoch: 2456514.5000 = 2013/08/10
Mean Anomaly: 345.55243 +/- 0.006
Argument of Peri: 161.17125 +/- 0.011
Long of Asc Node: 252.54593 +/- 0.002
Inclination: 4.23871 +/- 0.000
Eccentricity: 0.30063497 +/- 0.0000
Semi-Major Axis: 39.81307421 +/- 0.0025
Time of Perihelion: 2460196.8867 +/- 8.3
Perihelion: 27.84387185 +/- 0.0022
Aphelion: 51.78227656 +/- 0.0035
Period (y) 251.2157 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 25.64152131 +/- 0.0002
Ecliptic Y 12.57464802 +/- 0.0001
Ecliptic Z 1.53338018 +/- 0.0000
Ecliptic XDOT -0.00194059 +/- 0.0000
Ecliptic YDOT 0.00307449 +/- 0.0000
Ecliptic ZDOT -0.00020555 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 28.60007606 +/- 0.0002
Geocenter to KBO 28.25720666 +/- 0.0003
# Hcoef: 9.72
The following table shows the complete astrometric record for 14UU228. 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 (14UU228) followed by the observatory code and reference code for the source of the astrometry.
2013 08 09.50297 01 39 37.522 +13 40 58.34 24.0r 14UU228 568 C~2SDh 2013 08 09.54639 01 39 37.475 +13 40 58.38 24.2r 14UU228 568 C~2SDh 2013 09 02.46447 01 38 37.322 +13 37 10.97 24.4r 14UU228 568 C~2SDh 2013 09 03.44044 01 38 33.497 +13 36 53.07 24.5r 14UU228 568 C~2SDh 2013 09 03.48706 01 38 33.308 +13 36 52.22 24.0r 14UU228 568 C~2SDh 2013 11 28.26999 01 30 25.916 +12 48 41.70 24.5r 14UU228 568 C~2SDh 2013 12 05.28395 01 29 57.837 +12 45 12.18 24.1r 14UU228 568 C~2SDh 2014 01 02.23765 01 29 04.742 +12 36 22.83 24.1r 14UU228 568 C~2SDh 2014 01 02.28476 01 29 04.727 +12 36 22.37 24.0r 14UU228 568 C~2SDh 2014 01 03.25016 01 29 04.756 +12 36 14.17 24.2r 14UU228 568 C~2SDh 2014 01 03.31330 01 29 04.742 +12 36 13.75 24.5r 14UU228 568 C~2SDh 2014 07 26.54156 01 50 09.735 +14 29 04.60 24.1r 14UU228 568 C~2SDh 2014 07 26.58476 01 50 09.773 +14 29 05.24 24.2r 14UU228 568 C~2SDh 2014 08 24.48198 01 49 49.092 +14 29 34.67 24.1r 14UU228 568 C~2SDh 2014 08 24.55192 01 49 48.905 +14 29 33.90 24.9r 14UU228 568 C~2SDh 2014 08 30.45338 01 49 31.760 +14 28 24.79 23.9r 14UU228 568 C~2SDh 2014 08 30.55998 01 49 31.390 +14 28 23.16 24.2r 14UU228 568 C~2SDh 2014 10 22.29484 01 44 45.763 +14 03 22.84 24.2r 14UU228 568 C~2SDh 2014 10 22.33958 01 44 45.461 +14 03 21.12 24.4r 14UU228 568 C~2SDh 2014 10 22.38432 01 44 45.187 +14 03 19.51 24.6r 14UU228 568 C~2SDh 2014 10 23.48145 01 44 37.971 +14 02 37.41 23.8r 14UU228 568 C~2SDh 2014 11 20.22868 01 41 47.722 +13 45 08.29 24.1r 14UU228 568 C~2SDh 2014 11 20.36911 01 41 46.951 +13 45 03.14 23.8r 14UU228 568 C~2SDh 2014 11 21.27445 01 41 42.130 +13 44 31.30 25.4r 14UU228 568 C~2SDh 2014 11 21.42970 01 41 41.286 +13 44 25.74 24.2r 14UU228 568 C~2SDh 2019 10 26.405090 02 40 49.753 +17 54 40.53 24.0G 14UU228 G37 C~3coM 2019 10 26.490350 02 40 49.160 +17 54 37.74 14UU228 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 -0.01 0.00 -0.18
2 0.0001 0.00 0.05 0.00 -0.12
3 0.0656 0.00 -0.03 0.00 -0.04
4 0.0683 0.00 -0.03 0.00 -0.05
5 0.0684 0.00 -0.01 0.00 -0.04
6 0.3033 0.00 -0.01 0.00 0.07
7 0.3225 0.00 0.07 0.00 0.25
8 0.3990 0.00 0.09 0.00 0.13
9 0.3991 0.00 -0.01 0.00 0.09
10 0.4018 0.00 -0.01 0.00 -0.03
11 0.4019 0.00 -0.20 0.00 0.06
12 0.9611 0.00 0.17 0.00 -0.16
13 0.9612 0.00 0.04 0.00 -0.04
14 1.0403 0.00 -0.07 0.00 0.01
15 1.0405 0.00 -0.07 0.00 -0.10
16 1.0567 0.00 0.17 0.00 0.07
17 1.0570 0.00 0.02 0.00 -0.11
18 1.2013 0.00 -0.06 0.00 0.10
19 1.2015 0.00 -0.12 0.00 0.07
20 1.2016 0.00 0.25 0.00 0.16
21 1.2046 0.00 0.03 0.00 -0.07
22 1.2806 0.00 -0.16 0.00 0.11
23 1.2809 0.00 -0.11 0.00 -0.08
24 1.2834 0.00 0.02 0.00 -0.01
25 1.2839 0.00 0.01 0.00 -0.11
26 6.2119 0.00 0.05 0.00 0.01
27 6.2121 0.00 -0.04 0.00 -0.02
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.
14UU228 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 40.011 40.011 40.011 ecceobj 0.303 0.303 0.303 incobj 4.241 4.241 4.241 qmin 27.334 27.436 27.368 qmax 52.356 52.179 52.300 amean 39.455 39.456 39.455 amin 38.914 38.914 38.907 amax 40.092 40.072 40.092 emean 0.292 0.291 0.291 emin 0.278 0.278 0.277 emax 0.306 0.304 0.306 imean 5.669 5.736 5.723 imin 5.144 5.301 5.199 imax 6.283 6.389 6.309 excite_mean 0.308 0.307 0.308 fracstop 1.000 1.000 1.000 cjmean 2.942 2.942 2.942 libcent 0 179.8 179.4 179.4 libamp 0 116.4 116.1 117.8 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 196.4 198.9 193.8 kozaiamp 179.9 180.0 179.9