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: 11UW410
# Created Fri Nov 22 02:09:13 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 32 observations of 32
# Arc: 9.14y
# First observation: 2011/08/30
# Last observation: 2020/10/20
# Chi-squared of fit: 15.19 DOF: 58 RMS: 0.12
# Min/Max residuals: -0.30 0.25
# Exact a, adot, b, bdot, g, gdot:
1.544288E-05 2.712413E-02 3.811665E-06 4.972830E-03 2.699387E-02 6.650942E-03
# Covariance matrix:
1.6701E-13 -5.1365E-14 3.8239E-15 -8.1628E-15 9.6663E-14 -1.7770E-13
-5.1365E-14 1.3690E-13 -1.4193E-14 2.5479E-14 4.6034E-14 5.8093E-13
3.8239E-15 -1.4193E-14 6.2678E-14 -1.5245E-14 -5.7993E-15 -6.5103E-14
-8.1628E-15 2.5479E-14 -1.5245E-14 1.5369E-14 8.8794E-15 1.1686E-13
9.6663E-14 4.6034E-14 -5.7993E-15 8.8794E-15 1.4750E-13 2.1239E-13
-1.7770E-13 5.8093E-13 -6.5103E-14 1.1686E-13 2.1239E-13 2.6646E-12
# lat0 lon0 xBary yBary zBary JD0
2.756393 33.671694 0.846177 0.026192 -0.544745 2455803.971736
# Heliocentric elements and errors
Epoch: 2455804.5000 = 2011/08/31
Mean Anomaly: 62.97273 +/- 0.010
Argument of Peri: 287.01570 +/- 0.011
Long of Asc Node: 17.88297 +/- 0.000
Inclination: 10.72993 +/- 0.000
Eccentricity: 0.21939126 +/- 0.0001
Semi-Major Axis: 39.84831363 +/- 0.0028
Time of Perihelion: 2439732.7417 +/- 3.1
Perihelion: 31.10594180 +/- 0.0032
Aphelion: 48.59068546 +/- 0.0041
Period (y) 251.5493 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 31.72099233 +/- 0.0004
Ecliptic Y 20.11480734 +/- 0.0003
Ecliptic Z 1.78166786 +/- 0.0000
Ecliptic XDOT -0.00098788 +/- 0.0000
Ecliptic YDOT 0.00265503 +/- 0.0000
Ecliptic ZDOT 0.00053629 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.60307637 +/- 0.0004
Geocenter to KBO 37.04532286 +/- 0.0005
# Hcoef: 8.23
The following table shows the complete astrometric record for 11UW410. 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 (11UW410) followed by the observatory code and reference code for the source of the astrometry.
2011 08 30.47097 02 01 51.554 +15 19 54.21 23.8r 11UW410 568 C~1C6M 2011 08 30.52337 02 01 51.418 +15 19 53.72 23.8r 11UW410 568 C~1C6M 2011 08 30.56976 02 01 51.272 +15 19 53.71 24.0r 11UW410 568 C~1C6M 2011 09 05.57584 02 01 34.164 +15 19 04.69 24.1r 11UW410 568 C~1C6M 2011 10 25.36423 01 57 46.038 +15 03 03.63 23.9r 11UW410 568 C~1C6M 2011 10 25.41871 01 57 45.739 +15 03 02.31 23.8r 11UW410 568 C~1C6M 2011 10 25.47315 01 57 45.440 +15 03 00.87 24.0r 11UW410 568 C~1C6M 2011 10 26.26973 01 57 41.194 +15 02 40.26 23.6r 11UW410 568 C~1C6M 2011 10 26.32241 01 57 40.899 +15 02 39.04 23.9r 11UW410 568 C~1C6M 2011 10 26.36558 01 57 40.662 +15 02 37.92 23.7r 11UW410 568 C~1C6M 2011 10 31.30918 01 57 14.202 +15 00 29.86 23.5r 11UW410 568 C~1C6M 2011 10 31.35747 01 57 13.951 +15 00 28.70 23.9r 11UW410 568 C~1C6M 2011 10 31.37121 01 57 13.886 +15 00 28.31 24.4r 11UW410 568 C~1C6M 2011 11 24.30982 01 55 14.483 +14 50 20.40 24.0r 11UW410 568 C~1C6M 2011 12 01.32447 01 54 44.690 +14 47 40.72 23.8r 11UW410 568 C~1C6M 2012 01 26.31723 01 53 22.742 +14 38 54.81 24.3r 11UW410 568 C~1C6M 2012 01 27.25145 01 53 24.124 +14 39 00.48 24.3r 11UW410 568 C~1C6M 2012 08 17.55584 02 07 53.299 +16 07 53.66 24.3r 11UW410 568 C~1C6M 2012 08 22.61130 02 07 45.472 +16 07 52.26 24.1r 11UW410 568 C~1C6M 2012 08 24.48353 02 07 41.985 +16 07 48.45 24.0r 11UW410 568 C~1C6M 2012 10 21.32322 02 03 46.500 +15 53 00.93 23.7r 11UW410 568 C~1C6M 2012 10 21.34894 02 03 46.362 +15 53 00.30 23.7r 11UW410 568 C~1C6M 2012 10 21.37460 02 03 46.222 +15 52 59.70 23.7r 11UW410 568 C~1C6M 2013 01 14.34100 01 58 47.938 +15 26 27.98 11UW410 568 C~1C6M 2013 01 17.21184 01 58 48.589 +15 26 23.75 11UW410 568 C~1C6M 2013 02 02.25091 01 59 08.238 +15 27 27.69 24.1r 11UW410 568 C~1C6M 2013 02 03.25659 01 59 10.368 +15 27 36.66 23.7r 11UW410 568 C~1C6M 2013 10 28.51684 02 08 50.37 +16 37 36.6 11UW410 568 C~1CKy 2013 10 28.53893 02 08 50.25 +16 37 36.0 11UW410 568 C~1CKy 2013 10 28.56103 02 08 50.13 +16 37 35.5 11UW410 568 C~1CKy 2020 10 20.387690 02 48 39.532 +21 39 47.17 24.0G 11UW410 G37 C~4KuJ 2020 10 20.474170 02 48 39.092 +21 39 45.61 11UW410 G37 C~4KuJ
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 0.16 0.00 -0.14
2 0.0001 0.00 0.21 0.00 -0.30
3 0.0003 0.00 -0.11 0.00 -0.00
4 0.0167 0.00 -0.01 0.00 0.03
5 0.1530 0.00 0.03 0.00 -0.10
6 0.1532 0.00 0.00 0.00 -0.02
7 0.1533 0.00 -0.02 0.00 -0.06
8 0.1555 0.00 0.15 0.00 -0.16
9 0.1557 0.00 0.02 0.00 -0.03
10 0.1558 0.00 -0.00 0.00 -0.05
11 0.1693 0.00 -0.12 0.00 0.13
12 0.1694 0.00 0.04 0.00 0.22
13 0.1695 0.00 0.18 0.00 0.19
14 0.2350 0.00 -0.02 0.00 -0.03
15 0.2542 0.00 -0.04 0.00 0.08
16 0.4075 0.00 -0.14 0.00 0.10
17 0.4101 0.00 -0.15 0.00 0.18
18 0.9667 0.00 -0.07 0.00 0.03
19 0.9805 0.00 -0.23 0.00 -0.17
20 0.9857 0.00 0.05 0.00 -0.10
21 1.1440 0.00 -0.05 0.00 -0.15
22 1.1441 0.00 -0.03 0.00 -0.15
23 1.1442 0.00 -0.03 0.00 -0.12
24 1.3768 0.00 -0.20 0.00 0.07
25 1.3846 0.00 0.09 0.00 -0.16
26 1.4286 0.00 0.03 0.00 -0.03
27 1.4313 0.00 0.02 0.00 0.06
28 2.1630 0.00 -0.01 0.00 0.25
29 2.1631 0.00 -0.00 0.00 0.20
30 2.1631 0.00 0.00 0.00 0.25
31 9.1415 0.00 -0.06 0.00 -0.02
32 9.1417 0.00 0.11 0.00 -0.08
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.
11UW410 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.929 39.929 39.929 ecceobj 0.221 0.221 0.221 incobj 10.722 10.722 10.722 qmin 28.955 28.937 28.951 qmax 50.743 50.586 50.718 amean 39.456 39.456 39.456 amin 38.954 38.962 38.960 amax 40.065 40.078 40.055 emean 0.233 0.233 0.234 emin 0.196 0.194 0.197 emax 0.268 0.267 0.268 imean 9.043 9.054 9.038 imin 7.125 7.142 7.135 imax 11.135 11.135 11.135 excite_mean 0.283 0.283 0.283 fracstop 1.000 1.000 1.000 cjmean 2.960 2.960 2.960 libcent 0 179.9 179.4 179.5 libamp 0 107.9 107.2 108.3 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 268.7 268.5 269.1 kozaiamp 69.3 69.1 69.8