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: 93RP # Created Sat Apr 20 01:09:35 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 37 observations of 37 # Arc: 23.13y # First observation: 1993/09/15 # Last observation: 2016/11/02 # Chi-squared of fit: 38.58 DOF: 68 RMS: 0.18 # Min/Max residuals: -0.59 0.75 # Exact a, adot, b, bdot, g, gdot: 1.788493E-05 3.072627E-02 1.304794E-06 -2.330386E-03 2.918736E-02 -1.452831E-03 # Covariance matrix: 2.4462E-13 -1.7103E-14 -6.7668E-17 4.7869E-16 -5.2733E-15 -7.2047E-15 -1.7103E-14 6.0815E-14 5.9768E-16 -4.5294E-15 7.6820E-14 6.7985E-14 -6.7668E-17 5.9768E-16 2.4382E-13 -1.0849E-14 6.6462E-16 6.7757E-16 4.7869E-16 -4.5294E-15 -1.0849E-14 8.7007E-16 -5.6712E-15 -5.1115E-15 -5.2733E-15 7.6820E-14 6.6462E-16 -5.6712E-15 1.4912E-13 8.4758E-14 -7.2047E-15 6.7985E-14 6.7757E-16 -5.1115E-15 8.4758E-14 7.6737E-14 # lat0 lon0 xBary yBary zBary JD0 -0.029523 13.310070 0.348016 -0.000438 -0.944317 2449245.996997 # Heliocentric elements and errors Epoch: 2449246.5000 = 1993/09/16 Mean Anomaly: 265.45446 +/- 0.034 Argument of Peri: 281.36591 +/- 0.029 Long of Asc Node: 192.35959 +/- 0.000 Inclination: 4.34990 +/- 0.000 Eccentricity: 0.05681692 +/- 0.0000 Semi-Major Axis: 34.93615763 +/- 0.0014 Time of Perihelion: 2469054.9137 +/- 7.9 Perihelion: 32.95119280 +/- 0.0014 Aphelion: 36.92112247 +/- 0.0015 Period (y) 206.5004 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.33844315 +/- 0.0004 Ecliptic Y 7.76127273 +/- 0.0001 Ecliptic Z -0.01759975 +/- 0.0000 Ecliptic XDOT -0.00079256 +/- 0.0000 Ecliptic YDOT 0.00276856 +/- 0.0000 Ecliptic ZDOT -0.00021862 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.20466729 +/- 0.0004 Geocenter to KBO 34.26147564 +/- 0.0005 # Hcoef: 9.11
The following table shows the complete astrometric record for 93RP. 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 (93RP) followed by the observatory code and reference code for the source of the astrometry.
1993 09 15.4963 00 49 01.88 +05 13 37.6 24.5R 93RP 568 C22539 1993 09 15.5850 00 49 01.42 +05 13 34.8 93RP 568 C22539 1993 09 16.4558 00 48 57.17 +05 13 07.0 93RP 568 C22539 1993 09 16.4976 00 48 56.97 +05 13 05.8 93RP 568 C22539 1993 09 17.4630 00 48 52.23 +05 12 35.1 93RP 568 C22539 1993 09 17.4964 00 48 52.06 +05 12 33.8 93RP 568 C22539 2015 08 20.56332 03 27 16.771 +15 58 01.35 24.8w 93RP 568 C~4nAh 2015 09 07.60859 03 27 12.469 +15 55 54.67 24.6w 93RP 568 C~4nAh 2015 09 12.45964 03 27 04.912 +15 54 58.30 24.6w 93RP 568 C~4nAh 2015 10 07.50935 03 25 46.483 +15 47 58.02 24.6w 93RP 568 C~4nAh 2015 10 07.56783 03 25 46.221 +15 47 56.93 24.8w 93RP 568 C~4nAh 2015 10 09.54866 03 25 37.532 +15 47 15.86 24.6w 93RP 568 C~4nAh 2015 11 06.32308 03 23 09.611 +15 36 35.05 23.9r 93RP 568 C~4nAh 2015 11 06.38643 03 23 09.249 +15 36 33.32 24.2r 93RP 568 C~4nAh 2015 11 06.45719 03 23 08.817 +15 36 32.06 24.5r 93RP 568 C~4nAh 2015 11 07.47849 03 23 02.757 +15 36 07.12 24.5w 93RP 568 C~4nAh 2015 11 17.45967 03 22 02.854 +15 32 07.99 24.5w 93RP 568 C~4nAh 2015 11 17.54796 03 22 02.302 +15 32 05.91 24.4w 93RP 568 C~4nAh 2015 12 06.32589 03 20 12.788 +15 25 11.15 24.8w 93RP 568 C~4nAh 2015 12 06.45961 03 20 12.047 +15 25 08.43 24.6w 93RP 568 C~4nAh 2015 12 31.37031 03 18 15.345 +15 18 31.36 24.6w 93RP 568 C~4nAh 2016 01 07.39971 03 17 51.999 +15 17 23.72 24.7w 93RP 568 C~4nAh 2016 02 05.29926 03 17 14.152 +15 16 51.31 24.9w 93RP 568 C~4nAh 2016 02 11.25262 03 17 18.864 +15 17 35.09 24.7w 93RP 568 C~4nAh 2016 09 07.60834 03 34 51.127 +16 16 40.42 25.0w 93RP 568 C~4nAh 2016 09 27.53529 03 34 05.904 +16 12 06.31 24.8w 93RP 568 C~4nAh 2016 10 07.52743 03 33 27.958 +16 09 02.87 93RP 568 C~4nAh 2016 10 07.53507 03 33 27.942 +16 09 02.44 93RP 568 C~4nAh 2016 10 07.62286 03 33 27.566 +16 09 00.71 24.6w 93RP 568 C~4nAh 2016 10 09.52781 03 33 19.322 +16 08 22.92 24.2w 93RP 568 C~4nAh 2016 10 09.59992 03 33 18.994 +16 08 21.40 24.8w 93RP 568 C~4nAh 2016 10 10.55675 03 33 14.732 +16 08 02.07 24.6w 93RP 568 C~4nAh 2016 10 10.60523 03 33 14.516 +16 08 01.06 24.8w 93RP 568 C~4nAh 2016 10 28.47637 03 31 43.236 +16 01 30.75 24.5w 93RP 568 C~4nAh 2016 10 29.53828 03 31 37.223 +16 01 06.43 24.6w 93RP 568 C~4nAh 2016 10 29.55586 03 31 37.119 +16 01 05.89 24.5w 93RP 568 C~4nAh 2016 11 02.59127 03 31 13.906 +15 59 32.45 24.7w 93RP 568 C~4nAh
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 -0.03 0.00 -0.59
2 0.0002 0.00 -0.31 0.00 -0.52
3 0.0026 0.00 -0.20 0.00 -0.16
4 0.0027 0.00 -0.05 0.00 -0.01
5 0.0054 0.00 0.32 0.00 0.75
6 0.0055 0.00 0.31 0.00 0.54
7 21.9276 0.00 0.03 0.00 0.08
8 21.9770 0.00 0.09 0.00 -0.04
9 21.9903 0.00 0.10 0.00 0.06
10 22.0589 0.00 -0.04 0.00 0.05
11 22.0591 0.00 -0.09 0.00 0.16
12 22.0645 0.00 0.02 0.00 0.05
13 22.1405 0.00 -0.17 0.00 0.00
14 22.1407 0.00 0.11 0.00 -0.21
15 22.1409 0.00 0.03 0.00 0.23
16 22.1437 0.00 0.05 0.00 -0.02
17 22.1710 0.00 -0.01 0.00 -0.01
18 22.1713 0.00 -0.20 0.00 0.02
19 22.2227 0.00 -0.17 0.00 -0.10
20 22.2230 0.00 -0.02 0.00 -0.13
21 22.2912 0.00 0.12 0.00 -0.04
22 22.3105 0.00 0.14 0.00 0.03
23 22.3896 0.00 -0.02 0.00 0.01
24 22.4059 0.00 0.07 0.00 0.08
25 22.9791 0.00 -0.05 0.00 0.01
26 23.0336 0.00 0.04 0.00 0.02
27 23.0610 0.00 -0.23 0.00 0.19
28 23.0610 0.00 0.03 0.00 -0.09
29 23.0613 0.00 0.12 0.00 -0.08
30 23.0665 0.00 0.08 0.00 0.00
31 23.0667 0.00 0.05 0.00 -0.06
32 23.0693 0.00 -0.03 0.00 -0.05
33 23.0694 0.00 0.07 0.00 -0.06
34 23.1184 0.00 0.15 0.00 -0.04
35 23.1213 0.00 -0.00 0.00 0.08
36 23.1213 0.00 -0.04 0.00 -0.06
37 23.1324 0.00 -0.09 0.00 -0.03
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.
93RP quality flag:3 Type: 5:4E 5:4E 5:4E axisobj 35.314 35.314 35.314 ecceobj 0.059 0.059 0.059 incobj 4.326 4.326 4.326 qmin 32.506 32.437 32.463 qmax 37.961 37.906 37.892 amean 34.950 34.951 34.950 amin 34.512 34.527 34.512 amax 35.383 35.386 35.386 emean 0.044 0.044 0.044 emin 0.012 0.011 0.014 emax 0.073 0.072 0.072 imean 3.852 3.877 3.822 imin 2.799 2.759 2.779 imax 4.865 4.909 4.851 excite_mean 0.081 0.081 0.081 fracstop 1.000 1.000 1.000 cjmean 3.009 3.009 3.009 libcent 0 185.4 178.6 179.3 libamp 0 145.4 144.7 140.8 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 180.0 179.4 180.1 kozaiamp 180.0 180.0 180.0