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: 99RB215
# Created Fri May 2 02:36:29 2008
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 17
# Arc: 4.21y
# First observation: 1999/09/06
# Last observation: 2003/11/21
Preliminary a, adot, b, bdot, g, gdot:
-0.000027 0.041036 -0.000011 0.005650 0.032293 0.000000
# Chi-squared of fit: 4.28 DOF: 22 RMS: 0.10
# Min/Max residuals: -0.22 0.22
# Exact a, adot, b, bdot, g, gdot:
1.989300E-05 4.158015E-02 2.577980E-06 5.738932E-03 3.257125E-02 3.102691E-03
# Covariance matrix:
2.4571E-13 1.6289E-13 -3.1484E-15 2.2990E-14 3.2125E-13 9.5520E-13
1.6289E-13 1.9511E-12 -4.1964E-14 2.8450E-13 1.2788E-12 1.2062E-11
-3.1484E-15 -4.1964E-14 1.4113E-13 -4.8008E-14 -2.5236E-14 -2.7203E-13
2.2990E-14 2.8450E-13 -4.8008E-14 9.4401E-14 1.7471E-13 1.8375E-12
3.2125E-13 1.2788E-12 -2.5236E-14 1.7471E-13 1.2643E-12 7.3644E-12
9.5520E-13 1.2062E-11 -2.7203E-13 1.8375E-12 7.3644E-12 7.7988E-11
# lat0 lon0 xBary yBary zBary JD0
0.216817 7.267729 0.406985 0.003241 -0.914777 2451428.041393
# Heliocentric elements and errors
Epoch: 2451420.5000 = 1999/08/30
Mean Anomaly: 6.04688 +/- 0.020
Argument of Peri: 348.19561 +/- 0.045
Long of Asc Node: 5.00314 +/- 0.000
Inclination: 7.83942 +/- 0.000
Eccentricity: 0.34875859 +/- 0.0001
Semi-Major Axis: 48.22515449 +/- 0.0071
Time of Perihelion: 2449365.8518 +/- 6.7
Perihelion: 31.40621738 +/- 0.0067
Aphelion: 65.04409161 +/- 0.0107
Period (y) 334.9027 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 31.42157656 +/- 0.0011
Ecliptic Y 3.59843478 +/- 0.0001
Ecliptic Z 0.11626559 +/- 0.0000
Ecliptic XDOT -0.00018933 +/- 0.0000
Ecliptic YDOT 0.00350812 +/- 0.0000
Ecliptic ZDOT 0.00048344 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.62716750 +/- 0.0010
Geocenter to KBO 30.70192096 +/- 0.0011
# Hcoef: 9.33
The following table shows the complete astrometric record for 99RB215. 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 (99RB215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 06.54065 00 26 21.09 +03 05 00.9 24.0R 99RB215 568 Ca8546 1999 09 06.57078 00 26 20.93 +03 04 59.9 24.3R 99RB215 568 Ca8546 1999 09 06.60771 00 26 20.72 +03 04 58.9 23.6R 99RB215 568 Ca8546 1999 09 09.55351 00 26 05.44 +03 03 31.2 24.1R 99RB215 568 Ca8546 1999 09 09.56510 00 26 05.37 +03 03 30.9 23.8R 99RB215 568 Ca8546 1999 09 09.57670 00 26 05.30 +03 03 30.3 23.8R 99RB215 568 Ca8546 1999 10 10.35425 00 23 12.60 +02 46 46.4 24.2R 99RB215 568 Ca8546 1999 10 10.39580 00 23 12.40 +02 46 45.5 23.8R 99RB215 568 Ca8546 1999 10 10.45692 00 23 12.06 +02 46 43.2 23.7R 99RB215 568 Ca8546 1999 10 11.43385 00 23 06.55 +02 46 11.7 24.3R 99RB215 568 Ca8546 1999 10 11.48545 00 23 06.26 +02 46 09.2 24.2R 99RB215 568 Ca8546 1999 11 11.36506 00 20 36.71 +02 31 43.5 24.0R 99RB215 568 Ca8546 1999 11 11.41458 00 20 36.51 +02 31 42.4 24.3R 99RB215 568 Ca8546 2000 12 27.21111 00 27 35.328 +03 39 47.28 24.3R 99RB215 568 Cl2513 2000 12 28.21603 00 27 36.515 +03 39 56.92 24.3R 99RB215 568 Cl2513 2003 11 21.14863 00 52 35.78 +07 19 44.7 23.5R 99RB215 695 Cl2513 2003 11 21.19689 00 52 35.59 +07 19 43.7 99RB215 695 Cl2513
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 0.06 0.00 0.04 2 0.0001 -2.60 -0.02 0.03 -0.05 3 0.0002 -5.88 -0.22 0.35 0.13 4 0.0082 -250.78 0.22 10.24 0.00 5 0.0083 -251.86 0.14 10.38 0.10 6 0.0083 -253.06 -0.07 10.24 -0.09 7 0.0926 -3026.52 -0.10 111.44 0.12 8 0.0927 -3029.63 ( 0.60) 111.80 ( 0.32) 9 0.0929 -3035.22 ( 0.61) 111.70 ( -0.01) 10 0.0955 -3123.51 ( 0.18) 115.45 ( 0.67) 11 0.0957 -3128.50 -0.10 114.87 -0.10 12 0.1802 -5530.06 0.09 207.50 0.00 13 0.1804 -5533.25 -0.03 207.68 0.01 14 1.3078 1845.46 -0.02 1477.66 -0.10 15 1.3105 1865.59 0.06 1479.50 -0.15 16 4.2070 27792.68 0.02 4901.35 -0.01 17 4.2071 27789.63 -0.03 4901.52 0.09
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.
99RB215 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 48.176 48.197 48.155 ecceobj 0.348 0.348 0.348 incobj 7.842 7.842 7.842 qmin 30.243 30.026 30.037 qmax 66.467 66.425 66.407 amean 47.797 47.797 47.797 amin 47.169 47.202 47.209 amax 48.561 48.548 48.547 emean 0.343 0.344 0.338 emin 0.318 0.317 0.308 emax 0.369 0.372 0.371 imean 8.178 7.924 8.870 imin 6.145 4.971 4.726 imax 10.404 10.570 11.484 fracstop 1.000 1.000 1.000 cjmean 2.971 2.971 2.971 libcent 0 76.7 75.3 74.4 libamp 0 39.4 34.4 33.4 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 323.3 314.6 312.5 kozaiamp 39.3 36.4 37.7