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: 05BW49
# Created Sat Apr 20 01:12:19 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 26 observations of 26
# Arc: 18.85y
# First observation: 2004/03/18
# Last observation: 2023/01/22
# Chi-squared of fit: 49.61 DOF: 46 RMS: 0.24
# Min/Max residuals: -0.63 0.72
# Exact a, adot, b, bdot, g, gdot:
1.551879E-05 2.380087E-02 3.301071E-06 4.004999E-04 2.409387E-02 -1.981391E-03
# Covariance matrix:
3.5878E-13 -6.0331E-14 3.1698E-15 -8.2531E-16 -1.8519E-13 -9.8034E-14
-6.0331E-14 2.2789E-14 -8.4964E-16 3.6484E-16 9.7382E-15 3.9149E-14
3.1698E-15 -8.4964E-16 1.0359E-13 -7.7191E-15 -1.7805E-15 -1.5632E-15
-8.2531E-16 3.6484E-16 -7.7191E-15 1.2055E-15 8.3156E-17 6.6025E-16
-1.8519E-13 9.7382E-15 -1.7805E-15 8.3156E-17 2.0972E-13 2.0973E-14
-9.8034E-14 3.9149E-14 -1.5632E-15 6.6025E-16 2.0973E-14 7.1042E-14
# lat0 lon0 xBary yBary zBary JD0
1.914311 121.772510 -0.824592 0.018456 -0.550533 2453082.726430
# Heliocentric elements and errors
Epoch: 2453082.5000 = 2004/03/18
Mean Anomaly: 312.90308 +/- 0.027
Argument of Peri: 118.46794 +/- 0.032
Long of Asc Node: 59.04017 +/- 0.002
Inclination: 2.10394 +/- 0.000
Eccentricity: 0.08324619 +/- 0.0000
Semi-Major Axis: 44.40360426 +/- 0.0036
Time of Perihelion: 2467221.4051 +/- 14.0
Perihelion: 40.70717350 +/- 0.0037
Aphelion: 48.10003502 +/- 0.0042
Period (y) 295.8936 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -22.83716156 +/- 0.0004
Ecliptic Y 35.30112843 +/- 0.0007
Ecliptic Z 1.38659832 +/- 0.0000
Ecliptic XDOT -0.00218343 +/- 0.0000
Ecliptic YDOT -0.00162347 +/- 0.0000
Ecliptic ZDOT 0.00003810 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.06699187 +/- 0.0006
Geocenter to KBO 41.50444076 +/- 0.0008
# Hcoef: 6.48
The following table shows the complete astrometric record for 05BW49. 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 (05BW49) followed by the observatory code and reference code for the source of the astrometry.
2004 03 18.225687 08 17 55.26 +21 37 51.7 22.6V 05BW49 645 C~2JxC 2004 03 18.226516 08 17 55.26 +21 37 51.7 22.7V 05BW49 645 C~2JxC 2004 03 18.229004 08 17 55.26 +21 37 51.7 23.3V 05BW49 645 C~2JxC 2005 01 16.36263 08 28 08.35 +21 06 03.5 22.9g 05BW49 568 C~0VDy 2005 01 16.40043 08 28 08.16 +21 06 04.2 23.1g 05BW49 568 C~0VDy 2006 02 01.39642 08 32 34.68 +20 51 52.1 22.9r 05BW49 568 C~0VDy 2006 02 01.44282 08 32 34.43 +20 51 53.0 22.9r 05BW49 568 C~0VDy 2006 02 01.48348 08 32 34.22 +20 51 53.7 22.7r 05BW49 568 C~0VDy 2006 11 23.50049 08 42 54.41 +20 13 14.3 05BW49 568 C~0VDy 2006 11 24.49147 08 42 52.96 +20 13 22.9 22.6i 05BW49 568 C~0VDy 2006 11 24.54300 08 42 52.88 +20 13 23.4 22.7i 05BW49 568 C~0VDy 2006 11 24.59500 08 42 52.79 +20 13 23.8 22.7i 05BW49 568 C~0VDy 2007 01 19.31674 08 39 29.06 +20 27 58.1 05BW49 568 C~0VDy 2007 01 19.35945 08 39 28.84 +20 27 58.8 23.4g 05BW49 568 C~0VDy 2007 01 19.39213 08 39 28.68 +20 27 59.4 22.9g 05BW49 568 C~0VDy 2007 01 20.38005 08 39 23.68 +20 28 18.7 05BW49 568 C~0VDy 2010 01 21.34468 08 56 31.23 +19 24 54.9 05BW49 568 C~0VDy 2010 01 21.38190 08 56 31.05 +19 24 55.6 05BW49 568 C~0VDy 2010 01 21.41294 08 56 30.89 +19 24 56.6 05BW49 568 C~0VDy 2013 03 13.17463 09 09 40.55 +18 31 34.9 22.6R 05BW49 695 C~0udE 2013 03 14.16236 09 09 36.82 +18 31 49.2 05BW49 695 C~0udE 2013 03 14.25102 09 09 36.50 +18 31 50.3 05BW49 695 C~0udE 2023 01 22.456946 10 09 55.368 +13 37 25.33 22.3w 05BW49 F52 C~6CD6 2023 01 22.467818 10 09 55.297 +13 37 25.71 22.5w 05BW49 F52 C~6CD6 2023 01 22.478696 10 09 55.254 +13 37 25.73 22.5w 05BW49 F52 C~6CD6 2023 01 22.489640 10 09 55.215 +13 37 26.06 22.5w 05BW49 F52 C~6CD6
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 -0.13 0.00 -0.62
2 0.0000 0.00 -0.10 0.00 -0.62
3 0.0000 0.00 -0.00 0.00 -0.63
4 0.8327 0.00 -0.02 0.00 0.05
5 0.8328 0.00 0.05 0.00 0.05
6 1.8759 0.00 -0.06 0.00 0.06
7 1.8760 0.00 -0.20 0.00 0.12
8 1.8761 0.00 -0.19 0.00 0.10
9 2.6838 0.00 -0.02 0.00 -0.15
10 2.6866 0.00 0.04 0.00 -0.02
11 2.6867 0.00 0.07 0.00 0.02
12 2.6868 0.00 -0.03 0.00 -0.04
13 2.8394 0.00 0.01 0.00 0.12
14 2.8395 0.00 -0.01 0.00 -0.02
15 2.8396 0.00 0.10 0.00 -0.06
16 2.8423 0.00 -0.00 0.00 0.10
17 5.8456 0.00 0.16 0.00 0.47
18 5.8457 0.00 0.27 0.00 0.38
19 5.8458 0.00 0.22 0.00 0.72
20 8.9855 0.00 0.22 0.00 0.30
21 8.9882 0.00 -0.13 0.00 0.33
22 8.9884 0.00 0.12 0.00 0.16
23 18.8480 0.00 0.16 0.00 -0.20
24 18.8480 0.00 -0.22 0.00 -0.08
25 18.8481 0.00 -0.18 0.00 -0.33
26 18.8481 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.
05BW49 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.174 44.174 44.174 ecceobj 0.076 0.076 0.077 incobj 2.100 2.100 2.100 qmin 39.813 39.871 39.830 qmax 48.723 48.692 48.711 amean 44.148 44.148 44.148 amin 43.790 43.793 43.799 amax 44.532 44.526 44.527 emean 0.077 0.077 0.077 emin 0.060 0.060 0.060 emax 0.094 0.094 0.094 imean 1.210 1.210 1.210 imin 0.327 0.327 0.327 imax 1.887 1.887 1.887 excite_mean 0.081 0.081 0.081 fracstop 1.000 1.000 1.000 cjmean 3.095 3.095 3.095 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 171.8 172.0 171.9 kozaiamp 180.0 180.0 179.9