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: 99RJ215
# Created Fri May 2 02:36:29 2008
# Orbit generated from Bernstein formalism
# Fitting 17 observations of 19
# Arc: 8.01y
# First observation: 1999/09/07
# Last observation: 2007/09/11
Preliminary a, adot, b, bdot, g, gdot:
-0.000548 0.036837 -0.000157 0.011673 0.028332 0.000000
# Chi-squared of fit: 12.72 DOF: 28 RMS: 0.15
# Min/Max residuals: -0.56 0.21
# Exact a, adot, b, bdot, g, gdot:
1.855129E-05 3.520142E-02 5.410044E-06 1.113182E-02 2.937084E-02 -2.894645E-03
# Covariance matrix:
2.1477E-13 -2.7788E-13 2.5199E-14 -8.2712E-14 2.6405E-13 -8.6515E-13
-2.7788E-13 8.2305E-13 -7.0767E-14 2.5766E-13 -3.7045E-13 2.7069E-12
2.5199E-14 -7.0767E-14 1.1305E-13 -3.8652E-14 4.6718E-14 -2.3545E-13
-8.2712E-14 2.5766E-13 -3.8652E-14 9.4352E-14 -1.1491E-13 8.6058E-13
2.6405E-13 -3.7045E-13 4.6718E-14 -1.1491E-13 1.0514E-12 -1.1842E-12
-8.6515E-13 2.7069E-12 -2.3545E-13 8.6058E-13 -1.1842E-12 9.0422E-12
# lat0 lon0 xBary yBary zBary JD0
9.457442 -18.321299 -0.043245 0.164093 -0.986476 2451428.934853
# Heliocentric elements and errors
Epoch: 2451420.5000 = 1999/08/30
Mean Anomaly: 354.25938 +/- 0.008
Argument of Peri: 43.75237 +/- 0.019
Long of Asc Node: 314.89854 +/- 0.000
Inclination: 19.69615 +/- 0.000
Eccentricity: 0.42327650 +/- 0.0002
Semi-Major Axis: 60.10337195 +/- 0.0201
Time of Perihelion: 2454134.4551 +/- 3.3
Perihelion: 34.66302710 +/- 0.0152
Aphelion: 85.54371681 +/- 0.0302
Period (y) 465.9684 +/- 0.23
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 32.85294359 +/- 0.0011
Ecliptic Y -10.82797724 +/- 0.0004
Ecliptic Z 5.59468947 +/- 0.0002
Ecliptic XDOT 0.00061286 +/- 0.0000
Ecliptic YDOT 0.00326061 +/- 0.0000
Ecliptic ZDOT 0.00097929 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.04085536 +/- 0.0010
Geocenter to KBO 34.04737218 +/- 0.0012
# Hcoef: 7.28
The following table shows the complete astrometric record for 99RJ215. 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 (99RJ215) followed by the observatory code and reference code for the source of the astrometry.
1999 09 07.43411 22 38 03.36 +01 34 15.7 22.3R 99RJ215 568 Ca8547 1999 09 07.46756 22 38 03.18 +01 34 14.9 22.3R 99RJ215 568 Ca8547 1999 09 07.50057 22 38 03.02 +01 34 13.3 22.0R 99RJ215 568 Ca8547 1999 09 09.44480 22 37 52.77 +01 33 21.6 22.4R 99RJ215 568 Ca8547 1999 09 09.45640 22 37 52.71 +01 33 21.3 22.4R 99RJ215 568 Ca8547 1999 09 13.39865 22 37 32.16 +01 31 33.0 22.3R 99RJ215 568 Ca8547 1999 09 13.40573 22 37 32.12 +01 31 32.8 22.4R 99RJ215 568 Ca8547 1999 10 10.24860 22 35 28.44 +01 18 49.4 22.8R 99RJ215 568 Ca8547 1999 10 10.29797 22 35 28.24 +01 18 48.0 22.6R 99RJ215 568 Ca8547 1999 11 09.27106 22 34 11.78 +01 07 20.7 22.7R 99RJ215 568 Ca8547 1999 11 09.38201 22 34 11.65 +01 07 18.8 22.7R 99RJ215 568 Ca8547 2000 08 28.40307 22 45 25.28 +02 59 36.4 99RJ215 568 Cb9109 2000 08 28.42615 22 45 25.14 +02 59 35.8 22.5R 99RJ215 568 Cb9109 2000 08 29.52351 22 45 19.31 +02 59 09.9 22.3R 99RJ215 568 Cb9109 2000 08 29.56050 22 45 19.11 +02 59 08.9 22.6R 99RJ215 568 Cb9109 2002 10 31.11219 22 53 53.31 +05 12 20.0 99RJ215 695 Ch3084 2002 10 31.22290 22 53 53.00 +05 12 16.9 99RJ215 695 Ch3084 2007 09 11.37815 23 31 23.28 +12 23 10.9 22.1r 99RJ215 695 Cv8413 2007 09 11.42861 23 31 22.99 +12 23 09.7 21.8r 99RJ215 695 Cv8413
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 0.08 0.00 0.12 2 0.0001 -2.80 0.11 0.28 0.21 3 0.0002 -5.63 0.08 -0.30 -0.56 4 0.0055 -167.46 -0.03 9.89 0.04 5 0.0055 -168.41 0.01 9.96 0.04 6 0.0163 -494.63 -0.24 26.10 0.10 7 0.0163 -495.26 -0.28 26.14 0.12 8 0.0898 -2500.97 0.20 20.25 -0.02 9 0.0900 -2504.28 0.10 20.09 -0.03 10 0.1720 -3825.97 -0.07 -182.72 0.20 11 0.1723 -3828.50 -0.07 -183.74 0.15 12 0.9746 8070.13 0.11 2245.13 -0.17 13 0.9747 8067.96 -0.12 2245.36 -0.13 14 0.9777 7977.17 0.08 2254.24 0.01 15 0.9778 7974.01 0.04 2254.45 -0.09 16 3.1476 18152.63 ( 0.20) 6792.66 ( 0.88) 17 3.1480 18147.13 ( -0.15) 6791.51 ( 0.88) 18 8.0108 60354.60 0.08 19273.67 -0.05 19 8.0109 60349.81 -0.09 19274.00 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.
99RJ215 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 60.007 60.065 59.947 ecceobj 0.422 0.423 0.422 incobj 19.705 19.705 19.705 qmin 33.418 33.348 33.286 qmax 86.544 86.338 86.499 amean 59.017 59.178 59.118 amin 58.213 58.248 58.305 amax 60.303 60.221 60.209 emean 0.413 0.414 0.414 emin 0.389 0.390 0.394 emax 0.435 0.436 0.437 imean 20.972 21.107 21.013 imin 20.062 20.204 19.972 imax 21.932 22.114 21.811 fracstop 1.000 1.000 1.000 cjmean 2.891 2.889 2.890 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 169.6 174.2 177.6 kozaiamp 180.0 180.0 180.0