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: 01FU185 # Created Fri Oct 19 01:07:56 2018 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 4 observations of 4 # Arc: 56.86d # First observation: 2001/03/26 # Last observation: 2001/05/22 # Chi-squared of fit: 24.87 DOF: 2 RMS: 0.44 # Min/Max residuals: -0.70 0.65 # Exact a, adot, b, bdot, g, gdot: 1.953371E-05 3.159962E-02 4.815468E-06 1.362283E-02 2.978552E-02 -1.856196E-04 # Covariance matrix: 9.3396E-11 1.2279E-07 -2.4272E-12 -4.3237E-09 2.2380E-08 -2.5262E-07 1.2279E-07 1.6272E-04 -3.2172E-09 -5.7309E-06 2.9654E-05 -3.3538E-04 -2.4272E-12 -3.2172E-09 7.9283E-13 1.0900E-10 -5.8568E-10 6.8027E-09 -4.3237E-09 -5.7309E-06 1.0900E-10 2.0258E-07 -1.0433E-06 1.2113E-05 2.2380E-08 2.9654E-05 -5.8568E-10 -1.0433E-06 5.4060E-06 -6.0626E-05 -2.5262E-07 -3.3538E-04 6.8027E-09 1.2113E-05 -6.0626E-05 8.2492E-04 # lat0 lon0 xBary yBary zBary JD0 -3.465078 -175.119167 -0.017563 -0.060716 -1.000121 2451994.727223 # Heliocentric elements and errors Epoch: 2451994.5000 = 2001/03/26 Mean Anomaly: 359.48852 +/- 80.763 Argument of Peri: 352.29023 +/- 113.226 Long of Asc Node: 192.64186 +/- 2.829 Inclination: 23.58737 +/- 30.369 Eccentricity: 0.16656297 +/- 1.3275 Semi-Major Axis: 41.47738592 +/- 26.5144 Time of Perihelion: 2452133.1238 +/- 95954.4 Perihelion: 34.56878932 +/- 59.3293 Aphelion: 48.38598252 +/- 63.1534 Period (y) 267.1316 +/- 256.15 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -34.38331029 +/- 4.9447 Ecliptic Y -2.94951444 +/- 0.4218 Ecliptic Z -2.02900018 +/- 0.3004 Ecliptic XDOT 0.00018035 +/- 0.0037 Ecliptic YDOT -0.00289618 +/- 0.0015 Ecliptic ZDOT 0.00125113 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 34.56918541 +/- 4.9182 Geocenter to KBO 33.57338900 +/- 4.9718 # Hcoef: 9.00
The following table shows the complete astrometric record for 01FU185. 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 (01FU185) followed by the observatory code and reference code for the source of the astrometry.
2001 03 26.22648 12 12 24.21 -05 07 10.6 25.3R 01FU185 695 Cd1722 2001 03 26.33227 12 12 23.69 -05 07 07.5 01FU185 695 Cd1722 2001 05 21.99523 12 08 33.40 -04 31 28.2 22.8R 01FU185 807 Cd1722 2001 05 22.08429 12 08 33.16 -04 31 25.8 01FU185 807 Cd1722
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 -0.27 0.00 0.65 2 0.0003 0.00 0.34 0.00 -0.70 3 0.1554 0.00 0.36 0.00 -0.01 4 0.1557 0.00 -0.35 0.00 -0.02
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.
01FU185 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 41.328 41.328 41.328 ecceobj 0.164 0.164 0.164 incobj 23.613 23.613 23.613 qmin 32.939 33.054 32.703 qmax 50.785 50.370 51.005 amean 41.596 41.494 41.637 amin 41.187 41.038 41.211 amax 42.069 42.035 42.107 emean 0.181 0.179 0.186 emin 0.157 0.158 0.159 emax 0.208 0.201 0.213 imean 23.468 23.480 23.363 imin 22.676 22.677 22.503 imax 24.338 24.304 24.232 excite_mean 0.438 0.437 0.438 fracstop 1.000 1.000 1.000 cjmean 2.844 2.844 2.844 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 174.1 171.6 176.2 kozaiamp 180.0 180.0 180.0