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: 03YJ179
# Created Wed Dec 25 02:08:29 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 28 observations of 28
# Arc: 15.15y
# First observation: 2003/12/16
# Last observation: 2019/02/08
# Chi-squared of fit: 30.79 DOF: 50 RMS: 0.19
# Min/Max residuals: -0.38 0.52
# Exact a, adot, b, bdot, g, gdot:
1.452453E-05 2.616944E-02 6.759867E-08 5.392002E-04 2.544422E-02 -4.874415E-04
# Covariance matrix:
1.6645E-13 -6.8118E-14 1.8545E-15 -1.1519E-15 1.4911E-14 -1.5192E-13
-6.8118E-14 6.2380E-14 -2.0483E-15 1.1640E-15 -6.7509E-14 1.6220E-13
1.8545E-15 -2.0483E-15 9.2134E-14 -1.1208E-14 2.6247E-15 -5.6306E-15
-1.1519E-15 1.1640E-15 -1.1208E-14 3.1518E-15 -1.2420E-15 3.1798E-15
1.4911E-14 -6.7509E-14 2.6247E-15 -1.2420E-15 2.0407E-13 -1.9495E-13
-1.5192E-13 1.6220E-13 -5.6306E-15 3.1798E-15 -1.9495E-13 4.4484E-13
# lat0 lon0 xBary yBary zBary JD0
0.865682 66.845810 -0.283876 0.014265 -0.939609 2452989.818923
# Heliocentric elements and errors
Epoch: 2452990.5000 = 2003/12/17
Mean Anomaly: 350.90396 +/- 0.022
Argument of Peri: 46.40052 +/- 0.026
Long of Asc Node: 31.60817 +/- 0.003
Inclination: 1.45036 +/- 0.000
Eccentricity: 0.08167215 +/- 0.0001
Semi-Major Axis: 43.76479096 +/- 0.0041
Time of Perihelion: 2455662.4948 +/- 15.9
Perihelion: 40.19042640 +/- 0.0047
Aphelion: 47.33915553 +/- 0.0053
Period (y) 289.5313 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 15.55652946 +/- 0.0003
Ecliptic Y 37.11059134 +/- 0.0006
Ecliptic Z 0.59377962 +/- 0.0000
Ecliptic XDOT -0.00261434 +/- 0.0000
Ecliptic YDOT 0.00105192 +/- 0.0000
Ecliptic ZDOT 0.00005737 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.24369387 +/- 0.0006
Geocenter to KBO 39.30171165 +/- 0.0007
# Hcoef: 6.93
The following table shows the complete astrometric record for 03YJ179. 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 (03YJ179) followed by the observatory code and reference code for the source of the astrometry.
2003 12 16.31818 04 19 24.41 +22 18 22.3 23.2g 03YJ179 568 Cq9907 2003 12 16.34467 04 19 24.26 +22 18 21.9 23.3g 03YJ179 568 Cq9907 2003 12 16.37098 04 19 24.12 +22 18 21.6 23.5g 03YJ179 568 Cq9907 2003 12 17.39000 04 19 18.87 +22 18 08.8 03YJ179 568 Cq9907 2003 12 17.42270 04 19 18.68 +22 18 08.9 03YJ179 568 Cq9907 2004 12 11.36654 04 26 09.54 +22 35 46.8 22.5r 03YJ179 568 Cq9907 2004 12 11.39535 04 26 09.38 +22 35 46.5 22.6r 03YJ179 568 Cq9907 2004 12 11.42484 04 26 09.22 +22 35 46.1 22.6r 03YJ179 568 Cq9907 2004 12 12.28992 04 26 04.61 +22 35 35.9 22.6r 03YJ179 568 Cq9907 2005 10 04.42174 04 37 42.86 +23 00 42.8 03YJ179 675 Cq9907 2005 10 04.47528 04 37 42.74 +23 00 42.7 22.8R 03YJ179 675 Cq9907 2005 10 04.51629 04 37 42.65 +23 00 42.5 03YJ179 675 Cq9907 2005 11 04.42651 04 35 51.27 +22 57 42.8 22. R 03YJ179 695 Cq9907 2005 11 04.46117 04 35 51.10 +22 57 42.7 22. R 03YJ179 695 Cq9907 2005 12 24.26442 04 31 28.03 +22 49 02.2 23.6r 03YJ179 568 C~0D39 2005 12 24.36213 04 31 27.53 +22 49 01.2 23.6r 03YJ179 568 C~0D39 2005 12 24.39647 04 31 27.36 +22 49 00.7 23.5r 03YJ179 568 C~0D39 2005 12 25.40044 04 31 22.38 +22 48 50.0 23.5r 03YJ179 568 C~0D39 2007 09 16.50822 04 50 47.52 +23 27 04.5 03YJ179 675 Cy6720 2007 09 17.44513 04 50 47.41 +23 27 06.0 22.5R 03YJ179 675 Cy6720 2008 03 04.16516 04 41 30.26 +23 11 20.5 03YJ179 695 Cy7592 2010 09 07.45575 05 09 47.20 +23 58 26.0 03YJ179 675 C~0WzD 2010 09 07.50531 05 09 47.26 +23 58 26.2 03YJ179 675 C~0WzD 2010 09 07.51027 05 09 47.27 +23 58 26.3 03YJ179 675 C~0WzD 2010 09 08.46468 05 09 48.54 +23 58 29.6 03YJ179 675 C~0WzD 2010 09 08.49349 05 09 48.58 +23 58 29.3 03YJ179 675 C~0WzD 2019 02 08.176610 05 52 50.730 +24 40 31.81 22.8G 03YJ179 G37 C~2zmb 2019 02 08.253960 05 52 50.479 +24 40 31.57 03YJ179 G37 C~2zmb
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 0.37 0.00 0.12
2 0.0001 0.00 0.21 0.00 0.04
3 0.0001 0.00 0.19 0.00 0.06
4 0.0029 0.00 0.15 0.00 -0.12
5 0.0030 0.00 -0.14 0.00 0.39
6 0.9885 0.00 -0.08 0.00 0.03
7 0.9886 0.00 -0.12 0.00 0.07
8 0.9887 0.00 -0.11 0.00 0.02
9 0.9910 0.00 -0.05 0.00 0.12
10 1.8018 0.00 -0.38 0.00 -0.17
11 1.8019 0.00 -0.29 0.00 -0.12
12 1.8020 0.00 -0.18 0.00 -0.19
13 1.8867 0.00 -0.03 0.00 0.13
14 1.8868 0.00 -0.09 0.00 0.33
15 2.0231 0.00 -0.07 0.00 -0.11
16 2.0234 0.00 -0.14 0.00 -0.08
17 2.0235 0.00 -0.08 0.00 -0.21
18 2.0262 0.00 -0.15 0.00 -0.17
19 3.7514 0.00 0.52 0.00 -0.31
20 3.7539 0.00 0.42 0.00 -0.25
21 4.2159 0.00 0.07 0.00 0.20
22 6.7273 0.00 0.03 0.00 0.02
23 6.7274 0.00 -0.05 0.00 0.04
24 6.7274 0.00 0.01 0.00 0.12
25 6.7300 0.00 0.00 0.00 0.18
26 6.7301 0.00 0.08 0.00 -0.23
27 15.1481 0.00 -0.05 0.00 0.09
28 15.1484 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.
03YJ179 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.015 44.014 44.015 ecceobj 0.086 0.086 0.086 incobj 1.444 1.444 1.444 qmin 39.169 39.120 39.176 qmax 48.750 48.750 48.659 amean 43.731 43.719 43.729 amin 43.332 43.317 43.354 amax 44.154 44.154 44.157 emean 0.080 0.081 0.080 emin 0.065 0.059 0.065 emax 0.104 0.104 0.103 imean 1.538 1.567 1.573 imin 0.563 0.644 0.672 imax 2.307 2.307 2.308 excite_mean 0.085 0.086 0.085 fracstop 1.000 1.000 1.000 cjmean 3.090 3.089 3.089 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 180.4 188.5 169.9 kozaiamp 179.9 180.0 179.9