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: 385533 # Created Fri Apr 26 01:07:48 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 26 observations of 26 # Arc: 9.13y # First observation: 2004/08/19 # Last observation: 2013/10/06 # Chi-squared of fit: 35.78 DOF: 46 RMS: 0.21 # Min/Max residuals: -0.47 0.61 # Exact a, adot, b, bdot, g, gdot: 1.455493E-05 2.334608E-02 -6.881328E-06 -1.032165E-02 2.526653E-02 2.430355E-03 # Covariance matrix: 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 # lat0 lon0 xBary yBary zBary JD0 -0.199622 -44.563525 -0.198456 -0.003413 -0.996548 2453236.849313 # Heliocentric elements and errors Epoch: 2453236.5000 = 2004/08/19 Mean Anomaly: 55.86255 +/- 0.000 Argument of Peri: 112.92651 +/- 0.000 Long of Asc Node: 135.27479 +/- 0.000 Inclination: 23.91307 +/- 0.000 Eccentricity: 0.11421899 +/- 0.0000 Semi-Major Axis: 42.90018724 +/- 0.0000 Time of Perihelion: 2437310.5451 +/- 0.0 Perihelion: 38.00017121 +/- 0.0000 Aphelion: 47.80020326 +/- 0.0000 Period (y) 280.9940 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.04366640 +/- 0.0000 Ecliptic Y -28.32794384 +/- 0.0000 Ecliptic Z -0.13813294 +/- 0.0000 Ecliptic XDOT 0.00195809 +/- 0.0000 Ecliptic YDOT 0.00161332 +/- 0.0000 Ecliptic ZDOT -0.00111924 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.57118290 +/- 0.0000 Geocenter to KBO 39.57801672 +/- 0.0000 # Hcoef: 6.89
The following table shows the complete astrometric record for 385533. 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 (385533) followed by the observatory code and reference code for the source of the astrometry.
2004 08 19.34857 21 11 50.44 -16 23 54.3 23.0g 385533 568 C~0VDs 2004 08 19.37565 21 11 50.31 -16 23 55.4 23.1g 385533 568 C~0VDs 2004 08 19.40662 21 11 50.15 -16 23 56.1 23.0g 385533 568 C~0VDs 2005 07 30.38318 21 19 30.24 -16 24 17.7 23.0R 385533 568 C~0VDs 2005 07 30.41535 21 19 30.08 -16 24 18.6 23.0R 385533 568 C~0VDs 2005 07 30.45660 21 19 29.88 -16 24 19.7 22.9R 385533 568 C~0VDs 2005 07 31.42775 21 19 25.24 -16 24 47.1 23.2r 385533 568 C~0VDs 2006 07 20.43925 21 26 17.65 -16 28 31.8 385533 568 C~0VDs 2006 07 20.46564 21 26 17.53 -16 28 32.5 23.2r 385533 568 C~0VDs 2006 07 20.49206 21 26 17.42 -16 28 33.4 23.4r 385533 568 C~0VDs 2006 10 21.92257 21 20 27.66 -17 03 42.5 385533 950 C~0VDs 2006 10 22.92409 21 20 26.81 -17 03 49.9 385533 950 C~0VDs 2007 09 11.24844 21 28 14.44 -17 01 09.6 22.5r 385533 695 C~0VDs 2007 09 11.30904 21 28 14.19 -17 01 11.1 22.5r 385533 695 C~0VDs 2007 09 12.23784 21 28 10.40 -17 01 33.2 22.3r 385533 695 C~0VDs 2007 09 16.25250 21 27 54.55 -17 03 05.4 385533 675 C~0VDs 2007 09 17.26057 21 27 50.72 -17 03 27.8 385533 675 C~0VDs 2007 09 17.26471 21 27 50.70 -17 03 28.0 385533 675 C~0VDs 2009 06 21.44630 21 45 47.66 -16 38 40.7 385533 695 C~0VDs 2009 06 22.39252 21 45 45.39 -16 39 01.3 385533 695 C~0VDs 2009 07 24.31216 21 43 54.29 -16 53 02.2 385533 675 C~0VDs 2009 07 25.34532 21 43 49.77 -16 53 32.6 385533 675 C~0VDs 2009 07 25.42734 21 43 49.40 -16 53 35.2 385533 675 C~0VDs 2013 10 05.18542 22 02 12.74 -17 46 52.9 22.9R 385533 695 C~0zda 2013 10 05.28126 22 02 12.47 -17 46 54.9 385533 695 C~0zda 2013 10 06.22581 22 02 09.56 -17 47 10.0 385533 695 C~0zda
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 -0.02 0.00 0.09
2 0.0001 0.00 0.01 0.00 -0.27
3 0.0002 0.00 -0.14 0.00 -0.13
4 0.9447 0.00 0.25 0.00 0.27
5 0.9447 0.00 0.18 0.00 0.28
6 0.9449 0.00 0.19 0.00 0.35
7 0.9475 0.00 0.02 0.00 0.32
8 1.9167 0.00 -0.01 0.00 -0.01
9 1.9168 0.00 -0.03 0.00 0.02
10 1.9169 0.00 0.10 0.00 -0.15
11 2.1727 0.00 -0.22 0.00 -0.06
12 2.1754 0.00 -0.47 0.00 0.09
13 3.0606 0.00 -0.02 0.00 0.08
14 3.0608 0.00 0.03 0.00 0.02
15 3.0634 0.00 -0.07 0.00 -0.04
16 3.0743 0.00 0.06 0.00 -0.02
17 3.0771 0.00 0.24 0.00 -0.06
18 3.0771 0.00 0.18 0.00 -0.17
19 4.8380 0.00 0.09 0.00 -0.12
20 4.8406 0.00 -0.26 0.00 -0.14
21 4.9280 0.00 0.11 0.00 -0.35
22 4.9309 0.00 -0.16 0.00 -0.22
23 4.9311 0.00 -0.23 0.00 -0.40
24 9.1275 0.00 -0.29 0.00 0.61
25 9.1278 0.00 0.25 0.00 0.13
26 9.1304 0.00 0.20 0.00 -0.11
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.
385533 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 43.089 43.089 43.089 ecceobj 0.113 0.113 0.113 incobj 23.848 23.848 23.848 qmin 37.463 37.570 37.539 qmax 49.066 49.068 49.027 amean 43.132 43.130 43.127 amin 42.763 42.767 42.741 amax 43.521 43.534 43.509 emean 0.112 0.111 0.111 emin 0.097 0.095 0.095 emax 0.129 0.128 0.127 imean 22.609 22.635 22.623 imin 22.160 22.191 22.159 imax 23.021 23.040 23.078 excite_mean 0.401 0.401 0.400 fracstop 1.000 1.000 1.000 cjmean 2.894 2.894 2.894 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 184.1 182.0 185.9 kozaiamp 179.9 180.0 179.9