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: 03LD9
# Created Sat Apr 20 01:11:26 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 16.01y
# First observation: 2003/06/01
# Last observation: 2019/06/06
# Chi-squared of fit: 58.35 DOF: 24 RMS: 0.35
# Min/Max residuals: -0.65 0.58
# Exact a, adot, b, bdot, g, gdot:
1.488242E-05 2.630125E-02 2.600968E-06 3.150252E-03 2.526275E-02 2.639056E-03
# Covariance matrix:
6.0182E-13 -2.2405E-13 2.9044E-14 -2.3941E-14 7.8115E-13 -4.5060E-13
-2.2405E-13 1.3299E-13 -1.7670E-14 1.5134E-14 -2.2882E-13 2.8552E-13
2.9044E-14 -1.7670E-14 1.4435E-13 -1.4634E-14 3.1840E-14 -3.8963E-14
-2.3941E-14 1.5134E-14 -1.4634E-14 5.3640E-15 -2.3940E-14 3.3502E-14
7.8115E-13 -2.2882E-13 3.1840E-14 -2.3940E-14 1.8555E-12 -4.4784E-13
-4.5060E-13 2.8552E-13 -3.8963E-14 3.3502E-14 -4.4784E-13 6.3222E-13
# lat0 lon0 xBary yBary zBary JD0
1.410947 -111.306341 -0.030277 0.025060 -1.016342 2452791.625563
# Heliocentric elements and errors
Epoch: 2452792.5000 = 2003/06/02
Mean Anomaly: 30.15261 +/- 0.028
Argument of Peri: 329.16825 +/- 0.036
Long of Asc Node: 237.41608 +/- 0.000
Inclination: 6.97848 +/- 0.000
Eccentricity: 0.17243507 +/- 0.0002
Semi-Major Axis: 47.18381001 +/- 0.0136
Time of Perihelion: 2442877.0981 +/- 10.1
Perihelion: 39.04766632 +/- 0.0139
Aphelion: 55.31995370 +/- 0.0179
Period (y) 324.1139 +/- 0.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -14.72163555 +/- 0.0008
Ecliptic Y -37.82155868 +/- 0.0020
Ecliptic Z 0.97478384 +/- 0.0001
Ecliptic XDOT 0.00254883 +/- 0.0000
Ecliptic YDOT -0.00129939 +/- 0.0000
Ecliptic ZDOT 0.00034853 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.59731033 +/- 0.0019
Geocenter to KBO 39.58394264 +/- 0.0021
# Hcoef: 6.55
The following table shows the complete astrometric record for 03LD9. 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 (03LD9) followed by the observatory code and reference code for the source of the astrometry.
2003 06 01.12482 16 28 49.05 -20 21 29.0 21.5R 03LD9 807 Ci2707 2003 06 01.21781 16 28 48.56 -20 21 27.9 03LD9 807 Ci2707 2003 07 06.33798 16 26 02.58 -20 14 39.1 23.1R 03LD9 568 Ci2707 2003 07 06.40998 16 26 02.31 -20 14 38.4 03LD9 568 Ci2707 2003 07 07.31939 16 25 58.77 -20 14 30.0 03LD9 568 Ci2707 2004 07 16.11069 16 31 49.18 -20 16 24.9 21.9R 03LD9 807 Cn6523 2004 07 16.21145 16 31 48.83 -20 16 24.2 03LD9 807 Cn6523 2005 06 07.18270 16 41 08.14 -20 24 54.6 22.6R 03LD9 304 Cn6523 2005 06 07.23086 16 41 07.89 -20 24 54.1 03LD9 304 Cn6523 2006 06 03.26731 16 47 53.47 -20 26 43.9 22.4R 03LD9 250 S~06Ac 2006 06 03.27171 16 47 53.44 -20 26 43.9 03LD9 250 S~06Ac 2006 06 03.27611 16 47 53.42 -20 26 43.8 03LD9 250 S~06Ac 2006 06 03.28050 16 47 53.40 -20 26 43.8 03LD9 250 S~06Ac 2019 06 06.368050 18 06 56.438 -19 26 40.84 22.5G 03LD9 G37 C~36jC 2019 06 06.409650 18 06 56.246 -19 26 40.92 03LD9 G37 C~36jC
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 0.32 0.00 -0.18
2 0.0003 0.00 0.27 0.00 -0.29
3 0.0964 0.00 -0.62 0.00 0.04
4 0.0966 0.00 -0.31 0.00 0.05
5 0.0991 0.00 -0.14 0.00 -0.03
6 1.1252 0.00 0.42 0.00 -0.61
7 1.1255 0.00 0.31 0.00 -0.65
8 2.0180 0.00 0.00 0.00 -0.39
9 2.0181 0.00 0.01 0.00 -0.44
10 3.0066 0.00 0.07 0.00 0.58
11 3.0066 0.00 -0.04 0.00 0.53
12 3.0066 0.00 0.00 0.00 0.58
13 3.0066 0.00 0.04 0.00 0.53
14 16.0144 0.00 -0.04 0.00 -0.09
15 16.0145 0.00 0.07 0.00 -0.27
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.
03LD9 quality flag:2 Type: SCATNEAR CLASSICAL SCATNEAR axisobj 46.938 46.938 46.938 ecceobj 0.167 0.167 0.167 incobj 6.992 6.992 6.992 qmin 38.378 38.338 38.374 qmax 56.768 56.668 56.736 amean 47.294 47.295 47.294 amin 46.874 46.876 46.863 amax 47.836 47.804 47.825 emean 0.169 0.169 0.169 emin 0.153 0.153 0.153 emax 0.188 0.186 0.187 imean 8.434 8.434 8.434 imin 7.891 7.891 7.892 imax 8.968 8.975 8.972 excite_mean 0.224 0.224 0.224 fracstop 1.000 1.000 1.000 cjmean 3.080 3.080 3.080 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 181.0 181.0 181.0 kozaiamp 179.9 180.0 180.0