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: 05LC54
# Created Sat Apr 20 01:12:27 2024
# Orbit generated from Bernstein formalism
# Fitting 20 observations of 23
# Arc: 2.92y
# First observation: 2005/06/06
# Last observation: 2008/05/07
Preliminary a, adot, b, bdot, g, gdot:
-0.000071 0.023927 0.000029 -0.009816 0.023539 0.000000
# Chi-squared of fit: 7.86 DOF: 34 RMS: 0.11
# Min/Max residuals: -0.26 0.27
# Exact a, adot, b, bdot, g, gdot:
1.504830E-05 2.320909E-02 -5.903582E-06 -9.575996E-03 2.372154E-02 -8.391208E-03
# Covariance matrix:
2.1103E-13 -2.2556E-13 -2.0741E-15 3.0725E-14 3.1840E-13 -1.1444E-12
-2.2556E-13 1.0541E-12 3.1627E-14 -3.1901E-13 -3.4006E-13 1.1738E-11
-2.0741E-15 3.1627E-14 1.3592E-13 -6.4903E-14 7.8211E-15 4.2917E-13
3.0725E-14 -3.1901E-13 -6.4903E-14 1.5826E-13 -2.4461E-14 -4.1488E-12
3.1840E-13 -3.4006E-13 7.8211E-15 -2.4461E-14 1.5596E-12 8.2321E-13
-1.1444E-12 1.1738E-11 4.2917E-13 -4.1488E-12 8.2321E-13 1.5240E-10
# lat0 lon0 xBary yBary zBary JD0
1.485974 -118.285556 -0.246301 0.025550 -0.982265 2453527.746815
# Heliocentric elements and errors
Epoch: 2453520.5000 = 2005/05/30
Mean Anomaly: 338.00414 +/- 0.023
Argument of Peri: 236.16891 +/- 0.049
Long of Asc Node: 65.56067 +/- 0.000
Inclination: 22.41441 +/- 0.001
Eccentricity: 0.46346961 +/- 0.0005
Semi-Major Axis: 67.68414526 +/- 0.0444
Time of Perihelion: 2465947.5284 +/- 4.9
Perihelion: 36.31460053 +/- 0.0415
Aphelion: 99.05368999 +/- 0.0734
Period (y) 556.8505 +/- 0.55
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -20.22192000 +/- 0.0011
Ecliptic Y -38.09286226 +/- 0.0019
Ecliptic Z 1.09298780 +/- 0.0001
Ecliptic XDOT 0.00280498 +/- 0.0000
Ecliptic YDOT -0.00044906 +/- 0.0000
Ecliptic ZDOT -0.00112992 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.14147455 +/- 0.0018
Geocenter to KBO 42.15577123 +/- 0.0022
# Hcoef: 6.51
The following table shows the complete astrometric record for 05LC54. 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 (05LC54) followed by the observatory code and reference code for the source of the astrometry.
2005 06 06.246072 15 59 41.75 -19 02 55.2 05LC54 645 C~1RHW 2005 06 06.246901 15 59 41.74 -19 02 55.2 05LC54 645 C~1RHW 2005 06 06.249389 15 59 41.73 -19 02 55.2 05LC54 645 C~1RHX 2005 06 10.39687 15 59 22.23 -19 02 24.0 23.2g 05LC54 568 C~0X5g 2005 06 10.42324 15 59 22.10 -19 02 23.7 23.3g 05LC54 568 C~0X5g 2005 06 10.44979 15 59 22.00 -19 02 23.5 23.4g 05LC54 568 C~0X5g 2005 06 11.41267 15 59 17.53 -19 02 16.5 23.8g 05LC54 568 C~0X5g 2005 06 11.43760 15 59 17.42 -19 02 16.8 24.5g 05LC54 568 C~0X5g 2005 07 28.24729 15 56 41.06 -18 59 59.8 22.6i 05LC54 568 C~0X5g 2005 07 28.29707 15 56 40.98 -19 00 00.0 22.2i 05LC54 568 C~0X5g 2005 07 29.25252 15 56 39.45 -19 00 02.5 22.8i 05LC54 568 C~0X5g 2006 05 31.34870 16 05 19.60 -19 52 01.5 05LC54 568 C~0X5g 2006 05 31.38488 16 05 19.41 -19 52 01.3 05LC54 568 C~0X5g 2006 05 31.42036 16 05 19.24 -19 52 00.9 05LC54 568 C~0X5g 2007 05 16.30023 16 11 53.14 -20 42 27.4 05LC54 675 C~0X5g 2007 05 16.38685 16 11 52.70 -20 42 26.8 05LC54 675 C~0X5g 2007 05 17.30067 16 11 48.18 -20 42 20.1 21.9r 05LC54 695 C~0X5g 2007 05 17.38916 16 11 47.75 -20 42 19.3 21.9r 05LC54 695 C~0X5g 2008 05 03.38826 16 18 17.97 -21 32 11.3 05LC54 695 C~0X5g 2008 05 03.43070 16 18 17.78 -21 32 11.0 05LC54 695 C~0X5g 2008 05 07.48542 16 17 58.79 -21 31 48.8 05LC54 568 C~0X5g 2008 05 07.50855 16 17 58.68 -21 31 48.8 05LC54 568 C~0X5g 2008 05 07.53172 16 17 58.56 -21 31 48.7 05LC54 568 C~0X5g
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 0.09 0.00 -0.10
2 0.0000 -0.14 0.01 -0.03 -0.12
3 0.0000 -0.28 0.04 -0.06 -0.14
4 0.0114 -277.43 -0.09 -24.68 0.00
5 0.0114 -279.30 -0.18 -24.76 0.09
6 0.0115 -280.73 0.17 -24.85 0.17
7 0.0141 -344.23 -0.13 -30.66 0.19
8 0.0142 -345.70 0.06 -31.26 -0.26
9 0.1424 -2545.22 -0.03 -344.55 0.08
10 0.1425 -2546.29 0.07 -344.98 0.02
11 0.1451 -2567.03 -0.03 -351.85 -0.03
12 0.9832 5263.21 ( -0.23) -1956.14 ( 0.71)
13 0.9833 5260.54 ( -0.32) -1956.46 ( 0.61)
14 0.9834 5258.11 ( -0.23) -1956.53 ( 0.75)
15 1.9413 11278.61 -0.01 -3899.78 -0.02
16 1.9415 11272.41 -0.07 -3900.31 -0.05
17 1.9440 11208.63 -0.01 -3905.22 0.07
18 1.9443 11202.53 0.19 -3905.53 0.27
19 2.9080 17137.08 -0.07 -5895.83 0.01
20 2.9081 17134.40 0.04 -5895.98 0.11
21 2.9192 16867.68 -0.02 -5919.47 0.00
22 2.9193 16866.15 0.04 -5919.73 -0.13
23 2.9193 16864.48 -0.06 -5919.92 -0.18
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.
05LC54 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 66.867 66.995 66.740 ecceobj 0.461 0.462 0.459 incobj 22.502 22.502 22.503 qmin 34.632 35.201 34.643 qmax 101.839 101.573 101.816 amean 67.144 67.519 67.160 amin 66.081 66.633 66.129 amax 68.546 68.745 68.516 emean 0.460 0.460 0.463 emin 0.436 0.443 0.449 emax 0.486 0.478 0.486 imean 21.153 21.470 20.939 imin 19.790 20.727 19.681 imax 22.621 22.488 21.659 excite_mean 0.585 0.588 0.585 fracstop 1.000 1.000 1.000 cjmean 2.921 2.921 2.921 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 199.0 209.4 201.7 kozaiamp 180.0 179.9 180.0