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: 03YK179
# Created Sat Feb 22 02:08:36 2025
# Orbit generated from Bernstein formalism
# Fitting 18 observations of 18
# Arc: 3.06y
# First observation: 2003/10/03
# Last observation: 2006/10/23
Preliminary a, adot, b, bdot, g, gdot:
0.000011 0.021359 0.000009 -0.007591 0.023995 0.000000
# Chi-squared of fit: 35.23 DOF: 30 RMS: 0.25
# Min/Max residuals: -0.47 0.48
# Exact a, adot, b, bdot, g, gdot:
1.456410E-05 2.101408E-02 -4.576604E-06 -7.464795E-03 2.367860E-02 -2.830191E-03
# Covariance matrix:
4.7546E-13 -9.9897E-14 1.6915E-15 -1.2031E-14 3.8490E-13 5.7138E-13
-9.9897E-14 4.8871E-13 4.3557E-14 -1.7592E-13 1.5817E-13 7.8580E-12
1.6915E-15 4.3557E-14 1.5160E-13 -8.3780E-14 2.2590E-14 8.2427E-13
-1.2031E-14 -1.7592E-13 -8.3780E-14 1.3834E-13 -9.7591E-14 -3.3484E-12
3.8490E-13 1.5817E-13 2.2590E-14 -9.7591E-14 5.4474E-13 4.4007E-12
5.7138E-13 7.8580E-12 8.2427E-13 -3.3484E-12 4.4007E-12 1.4969E-10
# lat0 lon0 xBary yBary zBary JD0
0.764747 69.202193 0.865628 0.006802 -0.506799 2452915.947643
# Heliocentric elements and errors
Epoch: 2452910.5000 = 2003/09/28
Mean Anomaly: 270.06195 +/- 0.080
Argument of Peri: 284.48064 +/- 0.057
Long of Asc Node: 250.17125 +/- 0.000
Inclination: 19.58630 +/- 0.001
Eccentricity: 0.14884088 +/- 0.0005
Semi-Major Axis: 41.84472647 +/- 0.0074
Time of Perihelion: 2477610.7002 +/- 21.0
Perihelion: 35.61652047 +/- 0.0224
Aphelion: 48.07293246 +/- 0.0231
Period (y) 270.6882 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 15.97970612 +/- 0.0005
Ecliptic Y 39.64689296 +/- 0.0012
Ecliptic Z 0.56348767 +/- 0.0000
Ecliptic XDOT -0.00238844 +/- 0.0000
Ecliptic YDOT 0.00056167 +/- 0.0000
Ecliptic ZDOT -0.00086725 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.74979120 +/- 0.0011
Geocenter to KBO 42.23222136 +/- 0.0013
# Hcoef: 7.51
The following table shows the complete astrometric record for 03YK179. 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 (03YK179) followed by the observatory code and reference code for the source of the astrometry.
2003 10 03.44690 04 29 32.48 +22 35 09.7 24.3i 03YK179 568 Cq9907 2003 10 03.49804 04 29 32.38 +22 35 09.2 24.0i 03YK179 568 Cq9907 2003 10 03.55925 04 29 32.23 +22 35 08.9 24.0i 03YK179 568 Cq9907 2003 12 16.31981 04 24 08.17 +22 18 23.8 23.4g 03YK179 568 Cq9907 2003 12 16.34630 04 24 08.04 +22 18 23.1 23.4g 03YK179 568 Cq9907 2003 12 16.37261 04 24 07.92 +22 18 22.9 23.9g 03YK179 568 Cq9907 2003 12 17.39162 04 24 02.87 +22 18 07.1 03YK179 568 Cq9907 2003 12 21.190501 04 23 44.32 +22 17 07.0 03YK179 645 C~1RHS 2003 12 21.191330 04 23 44.32 +22 17 07.0 03YK179 645 C~1RHS 2003 12 21.193818 04 23 44.31 +22 17 07.0 03YK179 645 C~1RHS 2004 12 11.36844 04 29 58.90 +22 05 15.4 23.7r 03YK179 568 Cq9907 2004 12 11.39721 04 29 58.75 +22 05 15.1 23.8r 03YK179 568 Cq9907 2004 12 11.42672 04 29 58.60 +22 05 14.7 24.0r 03YK179 568 Cq9907 2005 11 04.44006 04 38 37.26 +21 59 07.0 23.5R 03YK179 695 Cq9907 2005 11 04.47426 04 38 37.11 +21 59 06.5 23.5R 03YK179 695 Cq9907 2006 10 23.493477 04 44 57.35 +21 45 23.1 03YK179 645 C~1RHS 2006 10 23.494306 04 44 57.34 +21 45 23.1 03YK179 645 C~1RHS 2006 10 23.496794 04 44 57.33 +21 45 23.1 03YK179 645 C~1RHS
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 -0.11 0.00 -0.08
2 0.0001 -1.45 0.13 -0.28 -0.22
3 0.0003 -3.54 0.07 -0.26 -0.02
4 0.2023 -4599.13 -0.47 -285.58 -0.16
5 0.2023 -4601.02 -0.46 -285.98 -0.44
6 0.2024 -4602.70 -0.24 -285.91 -0.26
7 0.2052 -4674.45 0.06 -290.16 0.12
8 0.2156 -4938.39 0.20 -307.69 0.04
9 0.2156 -4938.39 0.26 -307.69 0.05
10 0.2156 -4938.53 0.30 -307.67 0.08
11 1.1908 88.44 0.05 -1829.27 0.20
12 1.1908 86.34 0.08 -1829.25 0.34
13 1.1909 84.22 0.15 -1829.33 0.39
14 2.0890 7169.52 0.07 -3241.43 0.48
15 2.0891 7167.38 0.15 -3241.64 0.43
16 3.0556 12317.37 -0.02 -4766.22 -0.34
17 3.0556 12317.23 -0.11 -4766.20 -0.32
18 3.0556 12317.10 -0.12 -4766.18 -0.29
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.
03YK179 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 41.964 41.985 41.943 ecceobj 0.143 0.145 0.143 incobj 19.551 19.551 19.551 qmin 35.136 35.054 35.101 qmax 48.678 48.759 48.661 amean 41.753 41.772 41.727 amin 41.407 41.427 41.392 amax 42.130 42.143 42.099 emean 0.139 0.141 0.139 emin 0.122 0.125 0.123 emax 0.156 0.158 0.156 imean 21.351 21.339 21.333 imin 20.650 20.622 20.619 imax 21.943 21.947 21.943 excite_mean 0.390 0.390 0.389 fracstop 1.000 1.000 1.000 cjmean 2.892 2.892 2.892 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 177.7 177.0 176.9 kozaiamp 180.0 180.0 180.0