The following information shows the result of the orbit fit based on Gary Bernstein's method. Most of the information should be self-explanatory.
# Object: 38084
# Created Fri May 2 02:36:16 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 36 observations of 36
# Arc: 5.99y
# First observation: 1999/04/18
# Last observation: 2005/04/12
# Chi-squared of fit: 359.26 DOF: 66 RMS: 0.56
# Min/Max residuals: -1.09 2.01
# Exact a, adot, b, bdot, g, gdot:
1.959786E-05 3.421081E-02 6.687017E-06 7.400251E-03 2.906388E-02 -7.929065E-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
5.330183 -171.230319 -0.325170 0.088742 -0.953717 2451286.664883
# Heliocentric elements and errors
Epoch: 2451285.5000 = 1999/04/17
Mean Anomaly: 342.37431 +/- 0.000
Argument of Peri: 66.95078 +/- 0.000
Long of Asc Node: 166.49155 +/- 0.000
Inclination: 13.18023 +/- 0.000
Eccentricity: 0.40982500 +/- 0.0000
Semi-Major Axis: 55.10347955 +/- 0.0000
Time of Perihelion: 2458600.4388 +/- 0.0
Perihelion: 32.52069597 +/- 0.0000
Aphelion: 77.68626313 +/- 0.0000
Period (y) 409.0503 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -34.74647459 +/- 0.0000
Ecliptic Y -5.69050707 +/- 0.0000
Ecliptic Z 3.19648520 +/- 0.0000
Ecliptic XDOT 0.00128789 +/- 0.0000
Ecliptic YDOT -0.00305300 +/- 0.0000
Ecliptic ZDOT 0.00062473 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.35430573 +/- 0.0000
Geocenter to KBO 34.40715273 +/- 0.0000
# Hcoef: 6.94
The following table shows the complete astrometric record for 38084. 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 (38084) followed by the observatory code and reference code for the source of the astrometry.
1999 04 18.16414 12 40 36.80 +01 25 25.3 21.9R 38084 695 Ca4930 1999 04 18.25309 12 40 36.39 +01 25 28.4 38084 695 Ca4930 1999 04 18.34756 12 40 35.91 +01 25 31.4 38084 695 Ca4930 1999 05 05.87522 12 39 18.91 +01 33 43.8 38084 950 Ca4930 1999 05 05.93613 12 39 18.70 +01 33 45.1 38084 950 Ca4930 1999 05 05.99778 12 39 18.45 +01 33 46.6 38084 950 Ca4930 2000 03 28.48867 12 50 12.11 +00 50 43.6 23.1R 38084 568 Cb1943 2000 03 28.51282 12 50 12.00 +00 50 44.5 23.2R 38084 568 Cb1943 2000 03 28.52755 12 50 11.91 +00 50 45.1 23.0R 38084 568 Cb1943 2000 04 02.50470 12 49 46.65 +00 53 49.0 22.5R 38084 568 Cb1944 2000 04 02.53595 12 49 46.51 +00 53 50.2 22.2R 38084 568 Cb1944 2000 04 07.20733 12 49 22.94 +00 56 40.8 22.0R 38084 709 Cb1944 2000 04 07.28325 12 49 22.43 +00 56 44.4 22.3R 38084 709 Cb1944 2000 04 07.35918 12 49 22.18 +00 56 44.0 23.1R 38084 709 Cb1944 2000 04 07.55475 12 49 21.04 +00 56 51.3 22.4R 38084 568 Cb1944 2000 04 07.59362 12 49 20.86 +00 56 52.6 22.4R 38084 568 Cb1944 2001 02 23.32258 13 00 43.30 +00 06 38.5 22.5R 38084 309 Cc6426 2001 02 23.39024 13 00 43.06 +00 06 40.8 22.3R 38084 309 Cc6426 2001 02 24.38604 13 00 39.58 +00 07 14.5 22.2R 38084 309 Cc6426 2001 03 25.16647 12 58 33.53 +00 24 58.5 19.8 38084 304 Ce8605 2001 03 25.19313 12 58 33.40 +00 24 59.5 38084 304 Ce8605 2001 04 26.50493 12 55 51.94 +00 43 38.0 21.7R 38084 568 Cd0744 2001 04 27.49660 12 55 47.33 +00 44 07.1 38084 568 Cd0744 2001 04 27.55935 12 55 47.03 +00 44 08.9 38084 568 Cd0744 2002 02 13.29191 13 09 20.70 -00 22 39.9 22.2R 38084 304 f1478 2002 02 13.33902 13 09 20.57 -00 22 38.6 38084 304 f1478 2002 04 07.12967 13 05 39.78 +00 08 54.8 20.9R 38084 807 Cf6049 2002 04 07.18995 13 05 39.47 +00 08 56.9 38084 807 Cf6049 2002 04 08.11197 13 05 34.74 +00 09 30.2 38084 807 Cf6049 2002 04 08.16674 13 05 34.42 +00 09 32.6 38084 807 Cf6049 2003 04 21.14944 13 12 46.95 -00 07 24.7 20.0R 38084 304 Ch9308 2003 04 21.18800 13 12 46.74 -00 07 23.4 38084 304 Ch9308 2005 04 11.33184 13 30 31.40 -01 02 13.0 21.6R 38084 675 Cn3626 2005 04 11.37979 13 30 31.16 -01 02 11.5 21.6R 38084 675 Cn3626 2005 04 12.37090 13 30 25.91 -01 01 35.9 21.7R 38084 675 Cn3626 2005 04 12.40270 13 30 25.73 -01 01 34.7 22.2R 38084 675 Cn3626
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 -0.22 0.00 1.48 2 0.0002 0.00 -0.01 0.00 -0.19 3 0.0005 0.00 -0.32 0.00 -0.21 4 0.0485 0.00 -0.47 0.00 0.15 5 0.0487 0.00 0.05 0.00 0.01 6 0.0488 0.00 0.02 0.00 0.04 7 0.9454 0.00 0.13 0.00 -0.37 8 0.9455 0.00 0.35 0.00 -0.38 9 0.9456 0.00 0.13 0.00 -0.33 10 0.9592 0.00 -0.49 0.00 -0.78 11 0.9593 0.00 -0.17 0.00 -0.72 12 0.9721 0.00 1.59 0.00 1.12 13 0.9723 0.00 -0.20 0.00 2.01 14 0.9725 0.00 1.92 0.00 -1.09 15 0.9730 0.00 -0.26 0.00 -0.79 16 0.9731 0.00 0.02 0.00 -0.87 17 1.8540 0.00 0.06 0.00 0.40 18 1.8541 0.00 0.05 0.00 0.41 19 1.8569 0.00 0.00 0.00 0.24 20 1.9357 0.00 -0.12 0.00 0.88 21 1.9357 0.00 -0.04 0.00 0.87 22 2.0242 0.00 0.08 0.00 -0.10 23 2.0269 0.00 0.06 0.00 0.16 24 2.0271 0.00 -0.04 0.00 0.15 25 2.8258 0.00 0.14 0.00 0.10 26 2.8259 0.00 -0.05 0.00 0.02 27 2.9705 0.00 -0.04 0.00 -0.16 28 2.9706 0.00 0.04 0.00 -0.25 29 2.9732 0.00 0.10 0.00 -0.33 30 2.9733 0.00 -0.41 0.00 0.10 31 4.0082 0.00 0.06 0.00 0.07 32 4.0083 0.00 -0.12 0.00 0.12 33 5.9827 0.00 0.41 0.00 -0.13 34 5.9828 0.00 0.64 0.00 -0.35 35 5.9855 0.00 -0.28 0.00 -0.18 36 5.9856 0.00 -0.44 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.
38084 quality flag:3 Type: 5:2EEE 5:2EEE 5:2EEE axisobj 55.110 55.110 55.111 ecceobj 0.409 0.409 0.409 incobj 13.174 13.174 13.174 qmin 31.715 31.722 31.712 qmax 80.699 80.618 80.685 amean 55.462 55.462 55.462 amin 54.669 54.666 54.682 amax 56.529 56.534 56.501 emean 0.414 0.414 0.414 emin 0.400 0.400 0.400 emax 0.430 0.429 0.429 imean 12.378 12.378 12.378 imin 11.615 11.615 11.612 imax 12.919 12.920 12.918 fracstop 1.000 1.000 1.000 cjmean 2.957 2.957 2.957 libcent 0 180.1 179.9 180.9 libamp 0 112.8 113.9 113.4 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 176.8 176.7 177.3 kozaiamp 116.4 116.1 117.2