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: 11UQ412
# Created Sun Apr 27 01:09:21 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 11.33y
# First observation: 2011/08/29
# Last observation: 2022/12/26
# Chi-squared of fit: 6.42 DOF: 48 RMS: 0.09
# Min/Max residuals: -0.18 0.21
# Exact a, adot, b, bdot, g, gdot:
1.813213E-05 3.418120E-02 -5.495260E-06 -1.017287E-02 2.826614E-02 -4.283089E-03
# Covariance matrix:
1.8414E-13 -1.4075E-14 -3.7883E-15 5.6155E-15 1.2069E-13 -4.5283E-14
-1.4075E-14 6.9572E-14 1.2139E-14 -2.1287E-14 4.0386E-14 1.7300E-13
-3.7883E-15 1.2139E-14 7.5194E-14 -1.2596E-14 4.3137E-15 3.2581E-14
5.6155E-15 -2.1287E-14 -1.2596E-14 1.0544E-14 -8.7155E-15 -5.6849E-14
1.2069E-13 4.0386E-14 4.3137E-15 -8.7155E-15 1.6359E-13 7.1229E-14
-4.5283E-14 1.7300E-13 3.2581E-14 -5.6849E-14 7.1229E-14 4.6192E-13
# lat0 lon0 xBary yBary zBary JD0
2.174179 34.160361 0.859434 0.019876 -0.524320 2455803.033246
# Heliocentric elements and errors
Epoch: 2455802.5000 = 2011/08/29
Mean Anomaly: 352.41306 +/- 0.002
Argument of Peri: 197.43678 +/- 0.004
Long of Asc Node: 219.95462 +/- 0.000
Inclination: 16.68156 +/- 0.000
Eccentricity: 0.49021444 +/- 0.0001
Semi-Major Axis: 68.29629465 +/- 0.0085
Time of Perihelion: 2460147.1836 +/- 37.7
Perihelion: 34.81646510 +/- 0.0058
Aphelion: 101.77612421 +/- 0.0132
Period (y) 564.4220 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 30.17324978 +/- 0.0004
Ecliptic Y 19.43555376 +/- 0.0003
Ecliptic Z 1.34198011 +/- 0.0000
Ecliptic XDOT -0.00217429 +/- 0.0000
Ecliptic YDOT 0.00253318 +/- 0.0000
Ecliptic ZDOT -0.00100031 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.91620629 +/- 0.0004
Geocenter to KBO 35.37813387 +/- 0.0005
# Hcoef: 7.63
The following table shows the complete astrometric record for 11UQ412. 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 (11UQ412) followed by the observatory code and reference code for the source of the astrometry.
2011 08 29.53248 02 04 35.124 +14 57 05.64 23.2r 11UQ412 568 C~1CKy 2011 08 29.57665 02 04 35.014 +14 57 04.97 23.1r 11UQ412 568 C~1CKy 2011 08 29.62382 02 04 34.916 +14 57 04.30 23.0r 11UQ412 568 C~1CKy 2011 09 05.56255 02 04 17.858 +14 55 14.93 23.1r 11UQ412 568 C~1CKy 2011 10 24.44181 02 00 46.023 +14 32 57.91 23.0r 11UQ412 568 C~1CKy 2011 10 24.48455 02 00 45.792 +14 32 56.48 23.1r 11UQ412 568 C~1CKy 2011 10 24.52730 02 00 45.567 +14 32 55.02 23.0r 11UQ412 568 C~1CKy 2011 10 30.56385 02 00 14.122 +14 29 29.77 23.1r 11UQ412 568 C~1CKy 2011 10 31.54671 02 00 09.033 +14 28 56.19 23.1r 11UQ412 568 C~1CKy 2011 11 24.30055 01 58 13.970 +14 15 45.77 23.0r 11UQ412 568 C~1CKy 2011 11 24.30481 01 58 13.953 +14 15 45.62 23.1r 11UQ412 568 C~1CKy 2011 11 30.34681 01 57 48.977 +14 12 41.51 23.0r 11UQ412 568 C~1CKy 2012 01 25.28725 01 56 35.422 +13 57 24.06 23.4r 11UQ412 568 C~1CKy 2012 01 26.27207 01 56 37.134 +13 57 23.89 23.3r 11UQ412 568 C~1CKy 2012 08 23.53769 02 13 13.939 +15 04 49.95 23.3r 11UQ412 568 C~1CKy 2012 08 24.57339 02 13 12.413 +15 04 38.63 23.2r 11UQ412 568 C~1CKy 2012 10 17.40813 02 09 53.948 +14 43 36.05 22.9r 11UQ412 568 C~1CKy 2012 10 17.42550 02 09 53.859 +14 43 35.48 22.9r 11UQ412 568 C~1CKy 2012 10 20.50496 02 09 37.907 +14 41 55.04 23.0r 11UQ412 568 C~1CKy 2013 01 04.33671 02 04 47.564 +14 07 07.56 23.4r 11UQ412 568 C~1CKy 2013 01 14.32244 02 04 44.938 +14 05 27.69 23.6r 11UQ412 568 C~1CKy 2013 02 02.25552 02 05 10.838 +14 05 01.30 23.2r 11UQ412 568 C~1CKy 2017 12 20.27512 02 48 39.233 +14 31 36.18 22.8R 11UQ412 G37 C~2UwX 2017 12 20.35179 02 48 38.950 +14 31 34.67 11UQ412 G37 C~2UwX 2022 12 26.087880 03 33 04.530 +14 19 01.50 22.7G 11UQ412 G37 C~69Zk 2022 12 26.141060 03 33 04.300 +14 19 00.60 11UQ412 G37 C~69Zk 2022 12 26.202970 03 33 04.040 +14 18 59.83 11UQ412 G37 C~69Zk
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 0.21 0.00 0.03
2 0.0001 0.00 0.04 0.00 -0.03
3 0.0003 0.00 0.15 0.00 -0.04
4 0.0192 0.00 0.07 0.00 0.07
5 0.1531 0.00 -0.04 0.00 -0.03
6 0.1532 0.00 -0.10 0.00 -0.02
7 0.1533 0.00 -0.08 0.00 -0.02
8 0.1698 0.00 -0.16 0.00 0.07
9 0.1725 0.00 -0.05 0.00 0.08
10 0.2376 0.00 0.03 0.00 0.10
11 0.2376 0.00 0.05 0.00 0.08
12 0.2541 0.00 -0.16 0.00 -0.05
13 0.4073 0.00 0.10 0.00 -0.15
14 0.4100 0.00 0.07 0.00 -0.12
15 0.9856 0.00 -0.08 0.00 -0.04
16 0.9885 0.00 -0.18 0.00 0.01
17 1.1359 0.00 -0.08 0.00 0.07
18 1.1359 0.00 -0.05 0.00 0.06
19 1.1443 0.00 -0.04 0.00 0.00
20 1.3520 0.00 -0.07 0.00 -0.06
21 1.3793 0.00 0.08 0.00 0.06
22 1.4311 0.00 0.10 0.00 -0.08
23 6.3100 0.00 0.11 0.00 -0.08
24 6.3103 0.00 -0.02 0.00 -0.05
25 11.3253 0.00 0.11 0.00 0.05
26 11.3254 0.00 -0.04 0.00 -0.06
27 11.3256 0.00 -0.09 0.00 0.09
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.
11UQ412 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 68.546 68.545 68.546 ecceobj 0.492 0.492 0.492 incobj 16.669 16.669 16.669 qmin 33.557 33.769 33.743 qmax 102.810 102.532 102.428 amean 67.153 66.453 67.160 amin 66.109 65.078 66.082 amax 68.622 68.638 68.547 emean 0.484 0.474 0.482 emin 0.466 0.450 0.468 emax 0.501 0.496 0.497 imean 17.138 17.452 17.435 imin 16.133 16.349 16.700 imax 18.308 18.621 18.176 excite_mean 0.566 0.561 0.568 fracstop 1.000 1.000 1.000 cjmean 2.946 2.949 2.944 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 212.9 197.0 176.4 kozaiamp 180.0 180.0 180.0