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: 11UB412
# Created Sun Dec 22 02:09:17 2024
# Orbit generated from Bernstein formalism
# Fitting 19 observations of 19
# Arc: 4.04y
# First observation: 2011/10/24
# Last observation: 2015/11/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000048 0.020196 -0.000018 0.005347 0.022467 0.000000
# Chi-squared of fit: 13.22 DOF: 32 RMS: 0.15
# Min/Max residuals: -0.31 0.27
# Exact a, adot, b, bdot, g, gdot:
1.374796E-05 2.026807E-02 4.072174E-06 5.362610E-03 2.275560E-02 1.052830E-03
# Covariance matrix:
1.6957E-13 -1.9814E-13 1.4690E-14 -4.3099E-14 3.0446E-14 -2.0281E-12
-1.9814E-13 5.8295E-13 -4.7271E-14 1.5016E-13 4.9501E-14 7.0766E-12
1.4690E-14 -4.7271E-14 1.2192E-13 -5.9923E-14 1.3926E-15 -6.3330E-13
-4.3099E-14 1.5016E-13 -5.9923E-14 9.8194E-14 1.4487E-14 2.0145E-12
3.0446E-14 4.9501E-14 1.3926E-15 1.4487E-14 2.4162E-13 6.9843E-13
-2.0281E-12 7.0766E-12 -6.3330E-13 2.0145E-12 6.9843E-13 9.4939E-11
# lat0 lon0 xBary yBary zBary JD0
3.978081 28.858324 -0.029111 0.068743 -0.988446 2455858.925526
# Heliocentric elements and errors
Epoch: 2455850.5000 = 2011/10/16
Mean Anomaly: 115.21384 +/- 0.304
Argument of Peri: 253.98561 +/- 0.293
Long of Asc Node: 14.48232 +/- 0.001
Inclination: 15.28075 +/- 0.001
Eccentricity: 0.05664763 +/- 0.0004
Semi-Major Axis: 43.76924417 +/- 0.0057
Time of Perihelion: 2422000.8515 +/- 89.0
Perihelion: 41.28982037 +/- 0.0165
Aphelion: 46.24866797 +/- 0.0168
Period (y) 289.5755 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.25214975 +/- 0.0008
Ecliptic Y 21.66410151 +/- 0.0005
Ecliptic Z 3.04886329 +/- 0.0001
Ecliptic XDOT -0.00110912 +/- 0.0000
Ecliptic YDOT 0.00218022 +/- 0.0000
Ecliptic ZDOT 0.00065251 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.93729099 +/- 0.0008
Geocenter to KBO 43.94523350 +/- 0.0009
# Hcoef: 7.93
The following table shows the complete astrometric record for 11UB412. 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 (11UB412) followed by the observatory code and reference code for the source of the astrometry.
2011 10 24.42476 01 41 26.878 +14 47 01.80 24.3r 11UB412 568 C~1C6P 2011 10 24.46746 01 41 26.668 +14 47 00.85 24.4r 11UB412 568 C~1C6P 2011 10 24.51022 01 41 26.468 +14 46 59.80 11UB412 568 C~1C6P 2011 10 30.54650 01 40 59.160 +14 44 42.98 24.4r 11UB412 568 C~1C6P 2011 11 24.21942 01 39 17.399 +14 35 37.03 24.0r 11UB412 568 C~1C6P 2011 11 24.22808 01 39 17.368 +14 35 36.79 24.6r 11UB412 568 C~1C6P 2011 11 24.23235 01 39 17.361 +14 35 36.67 24.5r 11UB412 568 C~1C6P 2011 11 26.44523 01 39 09.480 +14 34 51.80 24.5r 11UB412 568 C~1C6P 2012 01 25.24712 01 37 55.629 +14 25 53.44 24.1r 11UB412 568 C~1C6P 2012 01 27.28902 01 37 58.541 +14 26 04.20 24.4r 11UB412 568 C~1C6P 2012 08 17.60362 01 49 27.621 +15 43 57.33 24.2r 11UB412 568 C~1C6P 2012 08 22.44017 01 49 19.053 +15 43 52.17 11UB412 568 C~1C6P 2012 08 24.53923 01 49 14.735 +15 43 46.39 24.7r 11UB412 568 C~1C6P 2012 10 17.38671 01 45 58.188 +15 31 30.52 24.6r 11UB412 568 C~1C6P 2012 10 20.48174 01 45 44.058 +15 30 23.65 24.3r 11UB412 568 C~1C6P 2013 01 14.35013 01 41 43.227 +15 07 04.94 24.4r 11UB412 568 C~1C6P 2013 02 03.27546 01 42 07.686 +15 08 18.84 24.4r 11UB412 568 C~1C6P 2015 11 08.14723 01 56 35.06 +17 28 04.2 24.4R 11UB412 G37 C~1ddG 2015 11 08.21876 01 56 34.69 +17 28 02.7 11UB412 G37 C~1ddG
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 0.07 0.00 -0.07
2 0.0001 -3.18 -0.09 0.21 0.01
3 0.0002 -6.27 -0.16 0.28 -0.06
4 0.0168 -425.05 -0.28 15.47 0.16
5 0.0843 -1999.27 0.04 40.53 0.08
6 0.0843 -1999.77 0.03 40.47 0.01
7 0.0843 -1999.91 0.13 40.39 -0.06
8 0.0904 -2122.81 0.13 40.06 -0.09
9 0.2541 -3317.78 0.04 -71.91 0.21
10 0.2597 -3274.45 -0.01 -77.28 0.00
11 0.8164 7720.67 -0.01 714.97 0.17
12 0.8296 7602.89 0.19 753.68 0.16
13 0.8354 7542.42 -0.15 770.22 0.13
14 0.9828 4623.87 -0.02 1086.17 -0.16
15 0.9913 4409.11 0.25 1096.28 -0.16
16 1.2264 654.37 -0.12 1037.07 -0.18
17 1.2809 1011.42 0.01 978.59 -0.24
18 4.0403 15681.25 0.27 4447.42 -0.11
19 4.0405 15675.73 -0.31 4447.83 0.21
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.
11UB412 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.852 43.869 43.834 ecceobj 0.057 0.057 0.056 incobj 15.265 15.265 15.265 qmin 40.389 40.346 40.383 qmax 46.997 46.987 46.940 amean 43.564 43.581 43.547 amin 43.229 43.252 43.219 amax 43.912 43.937 43.900 emean 0.057 0.058 0.057 emin 0.045 0.045 0.044 emax 0.070 0.070 0.070 imean 15.128 15.131 15.126 imin 14.695 14.702 14.688 imax 15.583 15.589 15.586 excite_mean 0.267 0.267 0.267 fracstop 1.000 1.000 1.000 cjmean 3.010 3.010 3.010 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 179.1 178.9 179.0 kozaiamp 180.0 180.0 180.0