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: 11UB411
# Created Wed Dec 25 02:09:11 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 8.16y
# First observation: 2011/08/30
# Last observation: 2019/10/26
# Chi-squared of fit: 9.01 DOF: 48 RMS: 0.10
# Min/Max residuals: -0.23 0.25
# Exact a, adot, b, bdot, g, gdot:
1.557373E-05 2.616489E-02 3.298183E-06 6.616505E-03 2.634492E-02 1.502590E-03
# Covariance matrix:
2.1794E-13 -1.1311E-13 1.1802E-14 -2.8692E-14 1.3897E-13 -5.0910E-13
-1.1311E-13 1.8327E-13 -2.2688E-14 4.9065E-14 -1.8261E-14 8.8955E-13
1.1802E-14 -2.2688E-14 7.4215E-14 -2.0964E-14 6.0019E-16 -1.1797E-13
-2.8692E-14 4.9065E-14 -2.0964E-14 2.6188E-14 -5.8256E-15 2.5500E-13
1.3897E-13 -1.8261E-14 6.0019E-16 -5.8256E-15 1.8546E-13 -8.9767E-14
-5.0910E-13 8.8955E-13 -1.1797E-13 2.5500E-13 -8.9767E-14 4.6236E-12
# lat0 lon0 xBary yBary zBary JD0
4.387323 31.090503 0.820582 0.044578 -0.581460 2455803.988876
# Heliocentric elements and errors
Epoch: 2455804.5000 = 2011/08/31
Mean Anomaly: 44.79498 +/- 0.046
Argument of Peri: 328.28017 +/- 0.053
Long of Asc Node: 13.33909 +/- 0.000
Inclination: 14.87118 +/- 0.000
Eccentricity: 0.04743208 +/- 0.0001
Semi-Major Axis: 39.84617229 +/- 0.0034
Time of Perihelion: 2444372.9494 +/- 11.9
Perihelion: 37.95618544 +/- 0.0050
Aphelion: 41.73615915 +/- 0.0052
Period (y) 251.5290 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 33.33669527 +/- 0.0005
Ecliptic Y 19.14338318 +/- 0.0003
Ecliptic Z 2.90387595 +/- 0.0000
Ecliptic XDOT -0.00131901 +/- 0.0000
Ecliptic YDOT 0.00238718 +/- 0.0000
Ecliptic ZDOT 0.00069760 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.55172145 +/- 0.0005
Geocenter to KBO 37.95797729 +/- 0.0006
# Hcoef: 8.01
The following table shows the complete astrometric record for 11UB411. 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 (11UB411) followed by the observatory code and reference code for the source of the astrometry.
2011 08 30.48811 01 49 28.024 +15 57 41.69 11UB411 568 C~1C6M 2011 08 30.58738 01 49 27.724 +15 57 41.16 11UB411 568 C~1C6M 2011 09 05.58883 01 49 09.234 +15 56 59.40 11UB411 568 C~1C6M 2011 10 25.33377 01 45 18.662 +15 41 36.99 11UB411 568 C~1C6M 2011 10 25.38258 01 45 18.394 +15 41 35.80 11UB411 568 C~1C6M 2011 10 25.43212 01 45 18.132 +15 41 34.54 11UB411 568 C~1C6M 2011 10 26.28262 01 45 13.685 +15 41 12.98 23.6r 11UB411 568 C~1C6M 2011 10 26.33520 01 45 13.397 +15 41 11.79 23.8r 11UB411 568 C~1C6M 2011 10 26.37840 01 45 13.162 +15 41 10.68 23.7r 11UB411 568 C~1C6M 2011 10 31.28562 01 44 47.562 +15 39 04.86 23.8r 11UB411 568 C~1C6M 2011 10 31.38837 01 44 47.012 +15 39 02.18 11UB411 568 C~1C6M 2011 10 31.41441 01 44 46.869 +15 39 01.43 11UB411 568 C~1C6M 2011 10 31.44399 01 44 46.717 +15 39 00.78 11UB411 568 C~1C6N 2011 11 24.25366 01 42 52.852 +15 28 58.83 23.9r 11UB411 568 C~1C6N 2012 01 26.28714 01 41 19.192 +15 17 22.25 24.1r 11UB411 568 C~1C6N 2012 01 27.22110 01 41 20.801 +15 17 27.77 23.8r 11UB411 568 C~1C6N 2012 08 23.58144 01 55 01.339 +16 50 49.53 23.8r 11UB411 568 C~1C6N 2012 08 24.40933 01 54 59.524 +16 50 48.88 23.9r 11UB411 568 C~1C6N 2012 08 24.45714 01 54 59.395 +16 50 48.72 23.9r 11UB411 568 C~1C6N 2012 08 27.55400 01 54 51.979 +16 50 42.79 24.1r 11UB411 568 C~1C6N 2012 10 21.38781 01 50 55.958 +16 36 48.48 23.7r 11UB411 568 C~1C6N 2013 02 03.29696 01 46 46.298 +16 11 04.44 23.8r 11UB411 568 C~1C6N 2013 09 30.44854 01 58 06.86 +17 37 24.4 11UB411 568 C~1CKy 2013 09 30.45882 01 58 06.82 +17 37 24.2 11UB411 568 C~1CKy 2013 09 30.46910 01 58 06.76 +17 37 24.1 11UB411 568 C~1CKy 2019 10 26.372690 02 29 00.658 +22 32 33.26 23.5G 11UB411 G37 C~3chz 2019 10 26.449710 02 29 00.229 +22 32 31.69 11UB411 G37 C~3chz
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 -0.02 0.00 0.14
2 0.0003 0.00 -0.17 0.00 0.14
3 0.0167 0.00 -0.23 0.00 0.13
4 0.1529 0.00 0.04 0.00 -0.15
5 0.1530 0.00 -0.06 0.00 -0.11
6 0.1532 0.00 -0.01 0.00 -0.11
7 0.1555 0.00 0.13 0.00 -0.07
8 0.1556 0.00 0.02 0.00 0.06
9 0.1558 0.00 -0.05 0.00 0.05
10 0.1692 0.00 0.25 0.00 0.05
11 0.1695 0.00 0.13 0.00 0.01
12 0.1695 0.00 0.04 0.00 -0.07
13 0.1696 0.00 0.10 0.00 0.05
14 0.2348 0.00 -0.13 0.00 -0.02
15 0.4074 0.00 -0.09 0.00 -0.19
16 0.4099 0.00 -0.13 0.00 -0.18
17 0.9831 0.00 -0.03 0.00 0.05
18 0.9854 0.00 0.10 0.00 0.13
19 0.9855 0.00 -0.18 0.00 0.01
20 0.9940 0.00 0.07 0.00 0.03
21 1.1441 0.00 0.08 0.00 0.03
22 1.4314 0.00 0.11 0.00 0.07
23 2.0861 0.00 -0.09 0.00 -0.05
24 2.0862 0.00 0.06 0.00 -0.07
25 2.0862 0.00 -0.09 0.00 0.01
26 8.1557 0.00 0.02 0.00 0.01
27 8.1560 0.00 -0.00 0.00 0.00
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.
11UB411 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 39.919 39.919 39.919 ecceobj 0.049 0.049 0.049 incobj 14.858 14.858 14.858 qmin 33.798 33.306 33.024 qmax 45.732 46.399 46.549 amean 39.481 39.473 39.474 amin 38.952 38.947 38.879 amax 40.014 40.043 40.071 emean 0.071 0.105 0.109 emin 0.007 0.019 0.019 emax 0.146 0.159 0.164 imean 10.177 12.698 11.212 imin 3.490 10.359 8.087 imax 15.237 15.236 15.237 excite_mean 0.194 0.246 0.228 fracstop 1.000 1.000 1.000 cjmean 3.003 2.982 2.993 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 220.3 173.3 181.9 kozaiamp 180.0 180.0 180.0