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: 11UQ411
# Created Tue Apr 1 01:09:19 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 6.31y
# First observation: 2011/08/30
# Last observation: 2017/12/20
# Chi-squared of fit: 9.14 DOF: 48 RMS: 0.10
# Min/Max residuals: -0.25 0.25
# Exact a, adot, b, bdot, g, gdot:
1.057094E-05 1.306029E-02 -9.551393E-06 -1.098665E-02 1.944440E-02 -6.590160E-03
# Covariance matrix:
1.5028E-13 -3.4697E-14 -1.7162E-14 4.4479E-14 9.9263E-14 -6.0739E-13
-3.4697E-14 1.3483E-13 5.3621E-14 -1.4831E-13 4.8876E-14 2.0421E-12
-1.7162E-14 5.3621E-14 9.6637E-14 -9.0167E-14 9.6828E-15 9.8926E-13
4.4479E-14 -1.4831E-13 -9.0167E-14 2.1754E-13 -3.0881E-14 -2.7239E-12
9.9263E-14 4.8876E-14 9.6828E-15 -3.0881E-14 1.6648E-13 4.3215E-13
-6.0739E-13 2.0421E-12 9.8926E-13 -2.7239E-12 4.3215E-13 3.7485E-11
# lat0 lon0 xBary yBary zBary JD0
3.765717 32.034380 0.830163 0.037366 -0.568223 2455803.980326
# Heliocentric elements and errors
Epoch: 2455804.5000 = 2011/08/31
Mean Anomaly: 315.91607 +/- 0.022
Argument of Peri: 262.87142 +/- 0.013
Long of Asc Node: 215.51749 +/- 0.000
Inclination: 40.30174 +/- 0.001
Eccentricity: 0.40280093 +/- 0.0004
Semi-Major Axis: 62.67571502 +/- 0.0187
Time of Perihelion: 2477997.9667 +/- 72.0
Perihelion: 37.42987899 +/- 0.0247
Aphelion: 87.92155104 +/- 0.0343
Period (y) 496.2004 +/- 0.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 44.43002516 +/- 0.0009
Ecliptic Y 26.81980081 +/- 0.0006
Ecliptic Z 3.37720992 +/- 0.0001
Ecliptic XDOT -0.00167738 +/- 0.0000
Ecliptic YDOT 0.00112708 +/- 0.0000
Ecliptic ZDOT -0.00160451 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 52.00734425 +/- 0.0008
Geocenter to KBO 51.42898163 +/- 0.0011
# Hcoef: 7.02
The following table shows the complete astrometric record for 11UQ411. 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 (11UQ411) followed by the observatory code and reference code for the source of the astrometry.
2011 08 30.47956 01 54 02.469 +15 42 41.46 23.8r 11UQ411 568 C~1C6O 2011 08 30.53207 01 54 02.353 +15 42 40.45 24.1r 11UQ411 568 C~1C6O 2011 08 30.57849 01 54 02.251 +15 42 40.01 24.1r 11UQ411 568 C~1C6O 2011 09 05.58010 01 53 48.983 +15 41 10.92 11UQ411 568 C~1C6O 2011 10 25.32951 01 51 00.230 +15 21 57.21 23.7r 11UQ411 568 C~1C6O 2011 10 25.37276 01 51 00.046 +15 21 56.08 24.1r 11UQ411 568 C~1C6O 2011 10 25.37795 01 51 00.036 +15 21 55.87 24.0r 11UQ411 568 C~1C6O 2011 10 25.42724 01 50 59.843 +15 21 54.39 24.2r 11UQ411 568 C~1C6O 2011 10 25.48711 01 50 59.608 +15 21 52.83 23.5r 11UQ411 568 C~1C6O 2011 10 26.27825 01 50 56.534 +15 21 30.63 23.8r 11UQ411 568 C~1C6O 2011 10 26.33093 01 50 56.328 +15 21 29.14 24.0r 11UQ411 568 C~1C6O 2011 10 26.37414 01 50 56.154 +15 21 27.89 23.9r 11UQ411 568 C~1C6O 2011 10 31.37984 01 50 36.754 +15 19 06.52 24.1r 11UQ411 568 C~1C6O 2011 11 24.27071 01 49 11.012 +15 08 00.31 24.3r 11UQ411 568 C~1C6O 2011 11 28.42497 01 48 58.120 +15 06 11.16 24.2r 11UQ411 568 C~1C6O 2011 11 30.31655 01 48 52.522 +15 05 22.29 24.3r 11UQ411 568 C~1C6O 2012 01 26.29717 01 47 53.599 +14 49 49.49 11UQ411 568 C~1C6O 2012 08 17.56862 01 58 13.024 +15 25 11.36 24.3r 11UQ411 568 C~1C6O 2012 08 23.55493 01 58 04.858 +15 24 09.18 24.0r 11UQ411 568 C~1C6O 2012 08 24.52636 01 58 03.312 +15 23 57.81 24.4r 11UQ411 568 C~1C6O 2012 08 24.58617 01 58 03.206 +15 23 57.13 24.0r 11UQ411 568 C~1C6O 2012 10 17.41666 01 55 20.530 +15 05 16.68 24.5r 11UQ411 568 C~1C6O 2012 10 20.51348 01 55 08.417 +15 03 51.78 24.4r 11UQ411 568 C~1C6O 2013 02 06.28044 01 51 57.152 +14 29 45.93 24.2r 11UQ411 568 C~1C6O 2013 02 06.28578 01 51 57.171 +14 29 46.21 23.9r 11UQ411 568 C~1C6O 2017 12 20.13317 02 11 33.667 +12 50 21.50 23.8R 11UQ411 G37 C~2UwX 2017 12 20.20352 02 11 33.524 +12 50 20.22 11UQ411 G37 C~2UwX
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 -0.04 0.00 0.12
2 0.0001 0.00 -0.13 0.00 -0.18
3 0.0003 0.00 -0.20 0.00 0.02
4 0.0167 0.00 -0.05 0.00 -0.12
5 0.1529 0.00 0.07 0.00 0.02
6 0.1530 0.00 -0.12 0.00 0.10
7 0.1530 0.00 0.04 0.00 0.03
8 0.1532 0.00 0.07 0.00 -0.07
9 0.1533 0.00 0.11 0.00 0.05
10 0.1555 0.00 0.01 0.00 0.06
11 0.1557 0.00 0.04 0.00 0.04
12 0.1558 0.00 -0.00 0.00 0.00
13 0.1695 0.00 0.10 0.00 -0.06
14 0.2349 0.00 -0.11 0.00 0.02
15 0.2463 0.00 0.02 0.00 0.22
16 0.2514 0.00 -0.12 0.00 0.03
17 0.4074 0.00 0.25 0.00 -0.04
18 0.9667 0.00 0.08 0.00 0.04
19 0.9831 0.00 0.00 0.00 -0.08
20 0.9858 0.00 0.10 0.00 -0.04
21 0.9859 0.00 0.04 0.00 -0.01
22 1.1333 0.00 0.13 0.00 -0.10
23 1.1418 0.00 -0.13 0.00 0.03
24 1.4396 0.00 -0.23 0.00 -0.25
25 1.4396 0.00 -0.09 0.00 0.03
26 6.3071 0.00 -0.09 0.00 0.04
27 6.3073 0.00 0.12 0.00 0.03
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.
11UQ411 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 62.811 62.811 62.812 ecceobj 0.403 0.403 0.403 incobj 40.250 40.250 40.250 qmin 36.634 36.630 36.639 qmax 89.201 89.261 89.262 amean 62.305 62.305 62.307 amin 61.558 61.591 61.580 amax 63.275 63.257 63.278 emean 0.389 0.389 0.389 emin 0.363 0.363 0.362 emax 0.411 0.412 0.411 imean 41.283 41.277 41.285 imin 40.753 40.739 40.751 imax 42.064 42.059 42.059 excite_mean 0.766 0.766 0.766 fracstop 1.000 1.000 1.000 cjmean 2.474 2.474 2.474 libcent 0 -180.0 -180.0 -180.0 libamp 0 -180.0 -180.0 -180.0 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 169.4 169.8 168.8 kozaiamp 179.9 180.0 180.0