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: 14UM229
# Created Sat Apr 20 01:16:37 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 40 observations of 40
# Arc: 8.18y
# First observation: 2013/09/01
# Last observation: 2021/11/05
# Chi-squared of fit: 20.83 DOF: 74 RMS: 0.13
# Min/Max residuals: -0.35 0.45
# Exact a, adot, b, bdot, g, gdot:
1.553552E-05 2.849766E-02 -7.367408E-07 -1.610366E-03 2.656196E-02 -1.003578E-03
# Covariance matrix:
1.1911E-13 -5.4151E-14 -2.0175E-15 2.8527E-15 4.1616E-14 -2.1224E-13
-5.4151E-14 1.1979E-13 4.7597E-15 -6.6992E-15 6.8637E-14 5.0186E-13
-2.0175E-15 4.7597E-15 5.6460E-14 -1.3017E-14 2.5727E-15 2.1541E-14
2.8527E-15 -6.6992E-15 -1.3017E-14 8.5913E-15 -3.6025E-15 -3.0326E-14
4.1616E-14 6.8637E-14 2.5727E-15 -3.6025E-15 1.3701E-13 2.7194E-13
-2.1224E-13 5.0186E-13 2.1541E-14 -3.0326E-14 2.7194E-13 2.2710E-12
# lat0 lon0 xBary yBary zBary JD0
2.790151 25.387945 0.732489 0.033923 -0.694964 2456537.018708
# Heliocentric elements and errors
Epoch: 2456536.5000 = 2013/09/01
Mean Anomaly: 339.11809 +/- 0.018
Argument of Peri: 166.68041 +/- 0.024
Long of Asc Node: 245.02583 +/- 0.002
Inclination: 4.19346 +/- 0.000
Eccentricity: 0.13646232 +/- 0.0000
Semi-Major Axis: 43.80911344 +/- 0.0025
Time of Perihelion: 2462679.9584 +/- 10.1
Perihelion: 37.83082039 +/- 0.0028
Aphelion: 49.78740650 +/- 0.0034
Period (y) 289.9712 +/- 0.02
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.91384759 +/- 0.0005
Ecliptic Y 15.76176322 +/- 0.0002
Ecliptic Z 1.83261915 +/- 0.0000
Ecliptic XDOT -0.00135161 +/- 0.0000
Ecliptic YDOT 0.00261178 +/- 0.0000
Ecliptic ZDOT -0.00017069 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.35063457 +/- 0.0004
Geocenter to KBO 37.64788541 +/- 0.0005
# Hcoef: 8.42
The following table shows the complete astrometric record for 14UM229. 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 (14UM229) followed by the observatory code and reference code for the source of the astrometry.
2013 09 01.51793 01 29 56.996 +12 24 56.76 24.9r 14UM229 568 C~2SDk 2013 09 01.55676 01 29 56.845 +12 24 56.00 24.1r 14UM229 568 C~2SDk 2013 09 02.49944 01 29 53.803 +12 24 40.74 24.1r 14UM229 568 C~2SDk 2013 09 02.55084 01 29 53.644 +12 24 40.05 23.9r 14UM229 568 C~2SDk 2013 10 03.49553 01 27 44.698 +12 12 53.68 21.5r 14UM229 568 C~2SDk 2013 10 04.59224 01 27 39.388 +12 12 22.94 24.0r 14UM229 568 C~2SDk 2013 10 31.35976 01 25 27.470 +11 59 03.52 23.8r 14UM229 568 C~2SDk 2013 11 01.30558 01 25 22.966 +11 58 35.02 24.3r 14UM229 568 C~2SDk 2013 11 01.34467 01 25 22.776 +11 58 33.99 24.0r 14UM229 568 C~2SDk 2013 11 01.43401 01 25 22.337 +11 58 31.31 24.3r 14UM229 568 C~2SDk 2013 12 04.33911 01 23 12.812 +11 43 52.10 24.4r 14UM229 568 C~2SDk 2013 12 29.23399 01 22 30.327 +11 37 31.24 24.9r 14UM229 568 C~2SDk 2014 07 25.54419 01 37 13.812 +12 58 44.75 24.1r 14UM229 568 C~2SDk 2014 07 25.58600 01 37 13.833 +12 58 44.92 24.7r 14UM229 568 C~2SDk 2014 08 23.54476 01 36 44.650 +12 57 34.80 24.6r 14UM229 568 C~2SDk 2014 08 23.59164 01 36 44.534 +12 57 34.37 24.4r 14UM229 568 C~2SDk 2014 08 27.43709 01 36 34.950 +12 56 50.36 24.3r 14UM229 568 C~2SDk 2014 08 27.53293 01 36 34.684 +12 56 49.28 24.4r 14UM229 568 C~2SDk 2014 09 18.36761 01 35 18.988 +12 50 23.36 24.0r 14UM229 568 C~2SDk 2014 09 18.41224 01 35 18.810 +12 50 22.34 24.0r 14UM229 568 C~2SDk 2014 09 23.44649 01 34 57.161 +12 48 24.70 24.3r 14UM229 568 C~2SDk 2014 10 22.41325 01 32 36.884 +12 34 57.02 24.2r 14UM229 568 C~2SDk 2014 10 22.45268 01 32 36.678 +12 34 55.97 24.4r 14UM229 568 C~2SDk 2014 10 22.49207 01 32 36.491 +12 34 54.81 24.2r 14UM229 568 C~2SDk 2014 10 23.40059 01 32 31.958 +12 34 27.29 24.8r 14UM229 568 C~2SDk 2014 10 25.26507 01 32 22.668 +12 33 30.95 24.2r 14UM229 568 C~2SDk 2014 11 19.21279 01 30 27.556 +12 21 21.84 24.4r 14UM229 568 C~2SDk 2014 11 19.34560 01 30 27.000 +12 21 18.34 24.4r 14UM229 568 C~2SDk 2014 11 21.19245 01 30 19.644 +12 20 28.55 24.1r 14UM229 568 C~2SDk 2014 11 21.19865 01 30 19.593 +12 20 28.66 24.7r 14UM229 568 C~2SDk 2014 11 21.36159 01 30 18.909 +12 20 24.51 24.3r 14UM229 568 C~2SDk 2015 01 28.24775 01 29 12.030 +12 08 10.88 23.7r 14UM229 568 C~2SDk 2015 02 18.23136 01 30 22.664 +12 13 13.71 24.1r 14UM229 568 C~2SDk 2015 12 07.43675 01 35 47.510 +12 44 48.40 24.6w 14UM229 568 C~2SDk 2015 12 07.44916 01 35 47.468 +12 44 48.20 24.4w 14UM229 568 C~2SDk 2017 01 27.26476 01 41 40.448 +13 07 40.84 24.5w 14UM229 568 C~2SDk 2017 01 28.26052 01 41 42.525 +13 07 47.30 24.8w 14UM229 568 C~2SDk 2021 11 05.275670 02 17 26.113 +15 51 11.12 23.9G 14UM229 G37 C~5BUt 2021 11 05.331150 02 17 25.817 +15 51 09.52 14UM229 G37 C~5BUt 2021 11 05.390300 02 17 25.517 +15 51 07.98 14UM229 G37 C~5BUt
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 0.30 0.00 0.07
2 0.0001 0.00 -0.05 0.00 -0.07
3 0.0027 0.00 -0.14 0.00 -0.05
4 0.0028 0.00 0.06 0.00 0.10
5 0.0875 0.00 0.01 0.00 -0.08
6 0.0906 0.00 0.07 0.00 -0.05
7 0.1638 0.00 0.06 0.00 -0.13
8 0.1664 0.00 0.10 0.00 -0.05
9 0.1665 0.00 0.09 0.00 0.09
10 0.1668 0.00 -0.00 0.00 0.11
11 0.2569 0.00 -0.09 0.00 0.10
12 0.3250 0.00 -0.18 0.00 0.04
13 0.8953 0.00 -0.16 0.00 0.13
14 0.8955 0.00 -0.03 0.00 0.05
15 0.9747 0.00 -0.09 0.00 -0.10
16 0.9749 0.00 -0.12 0.00 -0.05
17 0.9854 0.00 0.09 0.00 -0.11
18 0.9857 0.00 0.04 0.00 -0.01
19 1.0454 0.00 -0.11 0.00 -0.05
20 1.0456 0.00 0.06 0.00 -0.08
21 1.0594 0.00 0.17 0.00 -0.16
22 1.1387 0.00 -0.09 0.00 0.04
23 1.1388 0.00 -0.16 0.00 0.18
24 1.1389 0.00 0.04 0.00 0.21
25 1.1414 0.00 0.07 0.00 0.07
26 1.1465 0.00 0.02 0.00 0.04
27 1.2148 0.00 0.10 0.00 -0.04
28 1.2151 0.00 0.03 0.00 0.05
29 1.2202 0.00 0.45 0.00 -0.23
30 1.2202 0.00 0.06 0.00 0.04
31 1.2207 0.00 -0.35 0.00 0.20
32 1.4065 0.00 -0.03 0.00 -0.06
33 1.4640 0.00 -0.27 0.00 -0.27
34 2.2640 0.00 -0.06 0.00 -0.01
35 2.2640 0.00 -0.13 0.00 0.05
36 3.4052 0.00 0.10 0.00 -0.00
37 3.4079 0.00 0.25 0.00 -0.00
38 8.1773 0.00 -0.03 0.00 0.02
39 8.1774 0.00 -0.09 0.00 -0.05
40 8.1776 0.00 0.07 0.00 0.05
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.
14UM229 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 44.055 44.055 44.055 ecceobj 0.140 0.140 0.140 incobj 4.194 4.194 4.194 qmin 35.817 35.798 35.809 qmax 52.042 52.033 52.006 amean 43.727 43.727 43.727 amin 43.334 43.340 43.352 amax 44.151 44.167 44.162 emean 0.147 0.147 0.146 emin 0.112 0.112 0.111 emax 0.179 0.180 0.179 imean 4.856 4.840 4.871 imin 2.764 2.754 2.776 imax 6.508 6.491 6.529 excite_mean 0.171 0.171 0.171 fracstop 1.000 1.000 1.000 cjmean 3.063 3.063 3.063 libcent 0 181.5 179.1 179.5 libamp 0 54.4 53.7 51.2 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 181.3 181.0 181.4 kozaiamp 180.0 180.0 180.0