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: 05EF304
# Created Sun Dec 22 02:08:48 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 27 observations of 27
# Arc: 9.22y
# First observation: 2005/03/11
# Last observation: 2014/05/30
# Chi-squared of fit: 67.82 DOF: 48 RMS: 0.28
# Min/Max residuals: -0.59 0.52
# Exact a, adot, b, bdot, g, gdot:
1.801964E-05 2.947092E-02 -6.036761E-06 -9.862450E-03 2.556277E-02 -4.962238E-03
# Covariance matrix:
1.8771E-13 -8.0245E-14 -1.5501E-14 2.3293E-14 6.7777E-14 -2.4811E-13
-8.0245E-14 1.0949E-13 2.5959E-14 -3.7406E-14 1.7717E-14 3.9589E-13
-1.5501E-14 2.5959E-14 1.1090E-13 -2.3396E-14 5.7257E-15 9.7279E-14
2.3293E-14 -3.7406E-14 -2.3396E-14 1.7097E-14 -6.4504E-15 -1.4019E-13
6.7777E-14 1.7717E-14 5.7257E-15 -6.4504E-15 1.5133E-13 6.5273E-14
-2.4811E-13 3.9589E-13 9.7279E-14 -1.4019E-13 6.5273E-14 1.4837E-12
# lat0 lon0 xBary yBary zBary JD0
2.752165 -172.008292 0.291980 0.045468 -0.944174 2453440.930263
# Heliocentric elements and errors
Epoch: 2453440.5000 = 2005/03/11
Mean Anomaly: 353.71343 +/- 0.002
Argument of Peri: 197.93089 +/- 0.007
Long of Asc Node: 15.55987 +/- 0.000
Inclination: 18.66318 +/- 0.000
Eccentricity: 0.56136341 +/- 0.0001
Semi-Major Axis: 87.93552203 +/- 0.0147
Time of Perihelion: 2458700.1422 +/- 74.2
Perihelion: 38.57173764 +/- 0.0086
Aphelion: 137.29930643 +/- 0.0237
Period (y) 824.6216 +/- 0.21
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.67569376 +/- 0.0006
Ecliptic Y -5.27566263 +/- 0.0001
Ecliptic Z 1.87814317 +/- 0.0000
Ecliptic XDOT 0.00091441 +/- 0.0000
Ecliptic YDOT -0.00306616 +/- 0.0000
Ecliptic ZDOT -0.00108054 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.06907389 +/- 0.0006
Geocenter to KBO 39.11953570 +/- 0.0006
# Hcoef: 7.26
The following table shows the complete astrometric record for 05EF304. 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 (05EF304) followed by the observatory code and reference code for the source of the astrometry.
2005 03 11.42952 12 33 42.06 -00 38 27.2 23.2R 05EF304 695 Cn0312 2005 03 12.38284 12 33 37.84 -00 38 04.4 05EF304 695 Cn0312 2005 03 12.48062 12 33 37.40 -00 38 02.7 05EF304 695 Cn0312 2005 04 12.31912 12 31 14.75 -00 25 47.5 22.9R 05EF304 695 Cn3133 2005 04 12.41792 12 31 14.32 -00 25 45.3 05EF304 695 Cn3133 2005 04 15.15019 12 31 02.04 -00 24 45.9 23.2R 05EF304 304 Cn3361 2005 04 15.17459 12 31 01.92 -00 24 45.0 05EF304 304 Cn3361 2005 06 07.98706 12 28 19.08 -00 15 19.6 23.1R 05EF304 304 Cn6541 2005 06 08.07870 12 28 19.02 -00 15 19.8 05EF304 304 Cn6541 2006 04 26.07273 12 35 36.60 -01 32 37.8 22.1R 05EF304 807 Cr5134 2006 04 26.15609 12 35 36.25 -01 32 36.2 05EF304 807 Cr5134 2006 06 22.01898 12 33 26.35 -01 27 01.0 23.2R 05EF304 304 Cr5134 2006 06 22.04927 12 33 26.35 -01 27 01.3 05EF304 304 Cr5134 2007 02 15.32108 12 46 00.65 -03 09 52.1 05EF304 304 Cu1516 2007 02 15.35972 12 46 00.50 -03 09 51.5 05EF304 304 Cu1516 2007 02 15.38485 12 46 00.42 -03 09 51.1 05EF304 304 Cu1516 2008 06 06.99375 12 44 16.51 -03 48 36.1 05EF304 807 Cz1384 2008 06 08.00829 12 44 14.98 -03 48 34.4 05EF304 807 Cz1384 2013 03 16.25367 13 17 52.645 -10 20 26.29 23.0r 05EF304 807 C~2KVV 2013 03 16.25367 13 17 52.61 -10 20 26.9 23.3r 05EF304 W84 C~2J8t 2013 03 16.30082 13 17 52.444 -10 20 25.54 05EF304 807 C~2KVV 2013 03 16.30082 13 17 52.40 -10 20 26.0 05EF304 W84 C~2J8t 2013 03 16.35904 13 17 52.188 -10 20 24.26 05EF304 807 C~2KVV 2013 03 16.35905 13 17 52.14 -10 20 25.0 05EF304 W84 C~2J8t 2014 05 30.18806 13 18 13.67 -11 08 43.0 22.8R 05EF304 695 C~1LJO 2014 05 30.29046 13 18 13.33 -11 08 41.8 05EF304 695 C~1LJO 2014 05 30.33058 13 18 13.20 -11 08 41.0 05EF304 695 C~1LJO
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 0.03 0.00 -0.03
2 0.0026 0.00 -0.02 0.00 0.05
3 0.0029 0.00 0.00 0.00 -0.59
4 0.0873 0.00 0.11 0.00 0.05
5 0.0876 0.00 0.47 0.00 0.07
6 0.0951 0.00 0.38 0.00 0.10
7 0.0951 0.00 0.25 0.00 0.48
8 0.2425 0.00 -0.51 0.00 0.01
9 0.2427 0.00 0.16 0.00 0.10
10 1.1243 0.00 -0.16 0.00 0.01
11 1.1245 0.00 -0.12 0.00 0.04
12 1.2802 0.00 -0.18 0.00 0.01
13 1.2803 0.00 -0.16 0.00 -0.00
14 1.9326 0.00 -0.07 0.00 0.00
15 1.9327 0.00 -0.55 0.00 0.03
16 1.9328 0.00 -0.59 0.00 0.06
17 3.2404 0.00 0.50 0.00 -0.13
18 3.2432 0.00 0.10 0.00 -0.32
19 8.0132 0.00 -0.13 0.00 -0.34
20 8.0132 0.00 0.39 0.00 0.27
21 8.0133 0.00 -0.16 0.00 -0.28
22 8.0133 0.00 0.50 0.00 0.18
23 8.0135 0.00 0.52 0.00 0.41
24 8.0135 0.00 -0.20 0.00 -0.33
25 9.2177 0.00 0.05 0.00 0.22
26 9.2180 0.00 -0.32 0.00 -0.11
27 9.2181 0.00 -0.43 0.00 0.09
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.
05EF304 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 85.388 85.388 85.389 ecceobj 0.549 0.549 0.549 incobj 18.747 18.747 18.747 qmin 37.119 37.072 37.049 qmax 138.982 138.994 138.834 amean 86.565 86.460 86.317 amin 85.268 84.887 84.837 amax 88.512 88.479 88.516 emean 0.558 0.558 0.557 emin 0.545 0.541 0.542 emax 0.571 0.572 0.571 imean 18.277 18.243 18.221 imin 17.693 17.601 17.552 imax 19.014 19.211 19.152 excite_mean 0.640 0.639 0.639 fracstop 1.000 1.000 1.000 cjmean 3.020 3.020 3.020 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 190.8 185.2 187.8 kozaiamp 180.0 180.0 179.9