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: 95DC2 # Created Thu May 24 01:36:56 2012 # Orbit generated from Bernstein formalism # Fitting 58 observations of 58 # Arc: 5.98y # First observation: 1995/02/24 # Last observation: 2001/02/17 Preliminary a, adot, b, bdot, g, gdot: -0.000098 0.020796 -0.000011 0.000850 0.022497 0.000000 # Chi-squared of fit: 730.60 DOF: 110 RMS: 0.63 # Min/Max residuals: -2.09 1.54 # Exact a, adot, b, bdot, g, gdot: 1.035475E-05 2.064872E-02 -5.651348E-06 8.446451E-04 2.251889E-02 -1.158834E-03 # Covariance matrix: 5.6672E-14 -3.2543E-14 2.3955E-16 -7.4579E-16 3.4358E-14 -1.8037E-13 -3.2543E-14 7.0560E-14 -8.0325E-16 2.4845E-15 -4.4008E-15 5.9697E-13 2.3955E-16 -8.0325E-16 3.8876E-14 -1.0673E-14 -8.5108E-17 -7.8491E-15 -7.4579E-16 2.4845E-15 -1.0673E-14 8.5385E-15 2.4752E-16 2.4264E-14 3.4358E-14 -4.4008E-15 -8.5108E-17 2.4752E-16 1.0705E-13 5.5631E-14 -1.8037E-13 5.9697E-13 -7.8491E-15 2.4264E-14 5.5631E-14 5.8264E-12 # lat0 lon0 xBary yBary zBary JD0 -0.047014 152.994262 -0.034925 -0.000833 -0.993427 2449772.892208 # Heliocentric elements and errors Epoch: 2449770.5000 = 1995/02/22 Mean Anomaly: 246.12803 +/- 0.054 Argument of Peri: 119.30721 +/- 0.050 Long of Asc Node: 154.17954 +/- 0.000 Inclination: 2.34044 +/- 0.000 Eccentricity: 0.06496946 +/- 0.0001 Semi-Major Axis: 44.08783140 +/- 0.0026 Time of Perihelion: 2483591.8443 +/- 15.9 Perihelion: 41.22346888 +/- 0.0054 Aphelion: 46.95219392 +/- 0.0055 Period (y) 292.7429 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -40.46488470 +/- 0.0006 Ecliptic Y 20.57648534 +/- 0.0003 Ecliptic Z -0.03668637 +/- 0.0000 Ecliptic XDOT -0.00100754 +/- 0.0000 Ecliptic YDOT -0.00230204 +/- 0.0000 Ecliptic ZDOT 0.00010263 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 45.39603494 +/- 0.0005 Geocenter to KBO 44.40717185 +/- 0.0006 # Hcoef: 7.13
The following table shows the complete astrometric record for 95DC2. 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 (95DC2) followed by the observatory code and reference code for the source of the astrometry.
1995 02 24.3915 10 19 41.32 +10 21 43.8 22.5R 95DC2 568 A24813 1995 02 24.4349 10 19 41.12 +10 21 45.2 95DC2 568 A24813 1995 02 24.4976 10 19 40.86 +10 21 46.7 95DC2 568 A24813 1995 02 24.5828 10 19 40.46 +10 21 48.8 95DC2 568 A24813 1995 02 24.5874 10 19 40.44 +10 21 49.0 95DC2 568 A24813 1995 02 26.4260 10 19 32.47 +10 22 34.6 95DC2 568 A24813 1995 02 26.4482 10 19 32.37 +10 22 35.5 95DC2 568 A24813 1995 02 26.4750 10 19 32.27 +10 22 36.0 95DC2 568 A24813 1995 03 24.2503 10 17 47.12 +10 32 45.9 95DC2 568 C26263 1995 03 24.4211 10 17 46.48 +10 32 49.5 95DC2 568 C26263 1995 03 30.42587 10 17 25.52 +10 34 52.6 95DC2 413 C24958 1995 03 30.52515 10 17 25.20 +10 34 54.5 95DC2 413 C24958 1995 04 01.9000 10 17 17.40 +10 35 39.3 23.8R 95DC2 950 C25029 1995 04 01.9533 10 17 17.21 +10 35 40.4 95DC2 950 C25182 1995 04 02.0052 10 17 17.04 +10 35 41.3 95DC2 950 C25182 1995 04 05.25593 10 17 06.93 +10 36 40.1 95DC2 568 C26263 1995 04 05.26130 10 17 06.93 +10 36 40.3 95DC2 568 C26263 1995 04 05.37953 10 17 06.57 +10 36 42.3 95DC2 568 C26263 1995 04 06.00733 10 17 04.76 +10 36 53.3 23. R 95DC2 809 C25179 1995 04 06.04816 10 17 04.63 +10 36 54.0 95DC2 809 C25179 1995 04 06.06122 10 17 04.58 +10 36 54.2 95DC2 809 C25179 1995 04 06.11338 10 17 04.42 +10 36 55.2 95DC2 809 C25179 1995 04 06.17926 10 17 04.23 +10 36 56.3 95DC2 809 C25179 1995 04 06.24368 10 17 04.00 +10 36 57.2 95DC2 568 C26263 1995 04 06.36550 10 17 03.59 +10 36 59.3 95DC2 568 C26263 1995 04 06.99368 10 17 01.84 +10 37 10.0 95DC2 809 C25179 1995 04 07.00654 10 17 01.80 +10 37 10.4 95DC2 809 C25179 1995 04 07.01964 10 17 01.75 +10 37 10.5 95DC2 809 C25179 1995 04 07.04636 10 17 01.68 +10 37 10.9 95DC2 809 C25179 1995 04 07.05921 10 17 01.64 +10 37 11.1 95DC2 809 C25179 1995 04 07.13483 10 17 01.40 +10 37 12.6 95DC2 809 C25179 1995 04 07.14769 10 17 01.38 +10 37 12.8 95DC2 809 C25179 1995 04 07.16053 10 17 01.35 +10 37 12.8 95DC2 809 C25179 1995 12 23.51505 10 27 47.10 +09 37 39.4 95DC2 568 C26491 1995 12 23.54509 10 27 47.03 +09 37 39.8 95DC2 568 C26491 1995 12 23.57388 10 27 46.98 +09 37 40.1 95DC2 568 C26491 1995 12 24.50699 10 27 45.57 +09 37 48.7 95DC2 568 C26491 1995 12 24.54705 10 27 45.49 +09 37 49.1 95DC2 568 C26491 1996 04 09.20105 10 21 25.04 +10 15 19.2 95DC2 675 C27019 1996 04 09.26745 10 21 24.90 +10 15 20.4 95DC2 675 C27019 1997 02 09.27953 10 29 49.76 +09 29 16.9 95DC2 697 C29057 1997 02 09.30955 10 29 49.67 +09 29 17.7 95DC2 697 C29057 1997 02 10.32689 10 29 45.44 +09 29 42.8 95DC2 697 C29057 1997 02 10.35807 10 29 45.31 +09 29 43.6 95DC2 697 C29057 1997 03 04.93450 10 28 08.11 +09 39 21.6 95DC2 950 C30063 1997 03 05.92279 10 28 03.71 +09 39 45.9 95DC2 950 C30063 1998 05 23.90975 10 29 28.86 +09 35 11.5 95DC2 950 Ca1684 1998 05 23.95657 10 29 28.85 +09 35 10.9 95DC2 950 Ca1684 1998 05 24.90046 10 29 29.30 +09 35 09.3 95DC2 950 Ca1684 1999 01 23.45493 10 39 59.78 +08 35 16.6 95DC2 705 Ca3582 1999 01 23.48912 10 39 59.67 +08 35 17.1 95DC2 705 Ca3582 1999 02 11.42887 10 38 47.69 +08 42 38.6 23.5R 95DC2 568 Ca4114 1999 02 11.50747 10 38 47.34 +08 42 40.2 23.5R 95DC2 568 Ca4114 1999 02 17.55141 10 38 21.96 +08 45 16.1 23.5R 95DC2 568 Ca4114 1999 02 17.56301 10 38 21.93 +08 45 16.0 23.5R 95DC2 568 Ca4114 2001 02 17.07247 10 47 28.04 +07 56 52.1 95DC2 950 Cc6317 2001 02 17.12443 10 47 27.80 +07 56 53.8 95DC2 950 Cc6317 2001 02 17.17417 10 47 27.60 +07 56 54.9 95DC2 950 Cc6317
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 0.85 0.00 1.29 2 0.0001 -3.26 0.64 0.24 1.53 3 0.0003 -7.38 0.92 0.26 1.54 4 0.0005 -13.64 0.61 0.09 1.37 5 0.0005 -13.99 0.58 0.17 1.45 6 0.0056 -140.11 1.15 0.35 0.68 7 0.0056 -141.82 1.00 0.66 0.98 8 0.0057 -143.37 1.32 0.59 0.92 9 0.0763 -1810.02 0.61 12.08 -0.39 10 0.0767 -1820.12 0.54 12.05 -0.44 11 0.0932 -2152.81 0.22 16.09 0.35 12 0.0935 -2157.89 0.48 16.17 0.42 13 0.1000 -2281.33 -0.05 16.75 -0.06 14 0.1001 -2284.34 -0.30 16.78 -0.04 15 0.1002 -2287.00 -0.28 16.72 -0.10 16 0.1091 -2447.26 -0.80 18.18 -0.37 17 0.1092 -2447.33 -0.61 18.37 -0.18 18 0.1095 -2453.00 -0.53 18.33 -0.23 19 0.1112 -2481.86 0.18 19.04 -0.04 20 0.1113 -2483.90 0.10 19.01 -0.08 21 0.1113 -2484.66 -0.04 18.93 -0.16 22 0.1115 -2487.22 -0.10 19.02 -0.08 23 0.1117 -2490.23 0.03 19.04 -0.06 24 0.1118 -2493.72 -0.67 18.67 -0.39 25 0.1122 -2500.12 -1.26 18.46 -0.61 26 0.1139 -2528.04 -0.20 19.21 -0.38 27 0.1139 -2528.74 -0.29 19.37 -0.22 28 0.1140 -2529.46 -0.40 19.20 -0.40 29 0.1140 -2530.57 -0.26 19.20 -0.40 30 0.1141 -2531.19 -0.28 19.18 -0.43 31 0.1143 -2535.03 -0.57 19.31 -0.30 32 0.1143 -2535.38 -0.32 19.39 -0.22 33 0.1144 -2535.79 -0.13 19.23 -0.38 34 0.8272 7649.96 -0.44 142.38 -0.62 35 0.8273 7648.85 -0.80 142.37 -0.64 36 0.8273 7648.05 -0.87 142.38 -0.63 37 0.8299 7625.46 -0.36 142.75 -0.71 38 0.8300 7624.22 -0.55 142.69 -0.78 39 1.1220 1566.35 -0.57 193.77 -0.16 40 1.1222 1563.99 0.07 194.14 0.21 41 1.9600 9525.46 -0.20 340.41 0.02 42 1.9601 9523.93 0.29 340.67 0.27 43 1.9629 9456.36 0.71 341.02 0.13 44 1.9629 9454.27 0.74 341.06 0.16 45 2.0248 7902.03 0.17 351.39 -0.41 46 2.0275 7832.48 -1.98 350.17 -2.09 47 3.2430 9106.82 0.71 556.88 -0.24 48 3.2432 9106.90 0.51 556.27 -0.85 49 3.2457 9113.70 0.37 557.22 -0.22 50 3.9126 19167.58 -0.15 682.33 -0.03 51 3.9127 19165.86 0.04 682.18 -0.18 52 3.9645 18001.41 0.15 692.92 -0.10 53 3.9647 17995.96 0.03 692.47 -0.56 54 3.9813 17585.64 -0.06 696.72 0.62 55 3.9813 17585.26 0.37 696.46 0.36 56 5.9813 26285.93 0.04 1053.28 0.49 57 5.9815 26281.92 -0.34 1053.50 0.71 58 5.9816 26278.70 -0.09 1053.39 0.60
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.
95DC2 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.959 43.966 43.951 ecceobj 0.061 0.061 0.061 incobj 2.349 2.349 2.349 qmin 41.222 41.232 41.216 qmax 47.117 47.122 47.110 amean 44.155 44.161 44.148 amin 44.141 44.150 44.134 amax 44.172 44.179 44.164 emean 0.057 0.057 0.057 emin 0.047 0.047 0.048 emax 0.067 0.067 0.067 imean 2.361 2.359 2.363 imin 1.694 1.694 1.694 imax 2.996 2.992 3.000 excite_mean 0.071 0.071 0.071 fracstop 1.000 1.000 1.000 cjmean 3.098 3.098 3.097 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 171.4 171.4 171.4 kozaiamp 180.0 180.0 180.0