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: 15789
# Created Fri May 2 02:36:15 2008
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 90 observations of 93
# Arc: 6.14y
# First observation: 1993/09/17
# Last observation: 1999/11/09
# Chi-squared of fit: 1008.26 DOF: 174 RMS: 0.59
# Min/Max residuals: -1.93 2.16
# Exact a, adot, b, bdot, g, gdot:
2.106059E-05 3.471241E-02 2.999120E-06 3.124582E-03 3.041309E-02 4.276504E-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
0.383789 -1.115336 0.059315 0.006758 -1.004190 2449248.485197
# Heliocentric elements and errors
Epoch: 2449250.5000 = 1993/09/20
Mean Anomaly: 33.52150 +/- 0.000
Argument of Peri: 316.29248 +/- 0.000
Long of Asc Node: 354.64834 +/- 0.000
Inclination: 5.16345 +/- 0.000
Eccentricity: 0.18526314 +/- 0.0000
Semi-Major Axis: 39.44981033 +/- 0.0000
Time of Perihelion: 2440823.2330 +/- 0.0
Perihelion: 32.14121461 +/- 0.0000
Aphelion: 46.75840605 +/- 0.0000
Period (y) 247.7853 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 33.87492405 +/- 0.0000
Ecliptic Y -0.72392302 +/- 0.0000
Ecliptic Z 0.22036993 +/- 0.0000
Ecliptic XDOT 0.00044757 +/- 0.0000
Ecliptic YDOT 0.00311202 +/- 0.0000
Ecliptic ZDOT 0.00028376 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.88330265 +/- 0.0000
Geocenter to KBO 32.88054138 +/- 0.0000
# Hcoef: 6.83
The following table shows the complete astrometric record for 15789. 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 (15789) followed by the observatory code and reference code for the source of the astrometry.
1993 09 17.9845 23 55 17.77 -00 05 29.4 15789 950 C22662 1993 09 18.1750 23 55 16.72 -00 05 36.0 15789 950 C22662 1993 09 18.9667 23 55 12.45 -00 06 02.2 15789 950 C22662 1993 09 19.9487 23 55 07.22 -00 06 34.4 15789 950 C22662 1993 09 20.0330 23 55 06.64 -00 06 37.5 15789 950 C22662 1993 09 20.1416 23 55 06.16 -00 06 40.8 15789 950 C22662 1993 09 20.9996 23 55 01.34 -00 07 10.1 21.6R 15789 950 C22662 1993 09 21.0351 23 55 01.32 -00 07 10.8 15789 950 C22662 1993 09 21.1858 23 55 00.48 -00 07 15.8 21.8R 15789 950 C22662 1993 09 22.9830 23 54 50.73 -00 08 15.5 21.5R 15789 950 C22662 1993 09 23.1257 23 54 49.95 -00 08 20.5 22.1R 15789 950 C22662 1993 09 23.55521 23 54 47.55 -00 08 34.4 15789 413 C22630 1993 09 23.62404 23 54 47.16 -00 08 37.1 15789 413 C22630 1993 11 19.28252 23 50 47.10 -00 33 12.1 15789 568 C23389 1993 11 19.41519 23 50 46.82 -00 33 13.5 15789 568 C23389 1993 11 20.29771 23 50 44.98 -00 33 24.5 15789 568 C23389 1993 11 20.42730 23 50 44.71 -00 33 26.1 15789 568 C23389 1994 08 09.37242 00 05 21.99 +01 10 04.4 15789 809 C28036 1994 08 09.43030 00 05 21.78 +01 10 03.2 15789 809 C28036 1994 08 10.17181 00 05 19.19 +01 09 48.2 15789 809 C28036 1994 08 10.20810 00 05 19.05 +01 09 47.3 15789 809 C28036 1994 08 10.23185 00 05 18.96 +01 09 46.6 15789 809 C28036 1994 08 10.24909 00 05 18.90 +01 09 46.5 15789 809 C28036 1994 08 15.05118 00 05 01.01 +01 08 03.2 15789 950 C23846 1994 08 15.12317 00 05 00.74 +01 08 01.5 15789 950 C23846 1994 08 15.18615 00 05 00.45 +01 08 00.1 15789 950 C23846 1994 08 16.12649 00 04 56.75 +01 07 38.4 15789 950 C23846 1994 08 16.17877 00 04 56.56 +01 07 37.4 15789 950 C23846 1994 11 07.9290 23 58 13.67 +00 26 29.4 22.0R 15789 950 C24367 1994 11 07.9765 23 58 13.50 +00 26 28.4 15789 950 C24367 1994 11 08.0173 23 58 13.38 +00 26 27.6 15789 950 C24367 1994 12 28.10139 23 57 30.93 +00 22 29.9 15789 675 C24640 1995 01 03.29583 23 57 44.70 +00 24 03.0 15789 568 C24632 1995 01 04.28333 23 57 47.30 +00 24 20.8 15789 568 C24632 1995 07 28.53815 00 12 47.01 +02 09 01.9 22.6V 15789 568 C25482 1995 07 28.61696 00 12 46.81 +02 09 01.0 15789 568 C25482 1995 08 26.05203 00 11 08.78 +01 59 45.1 15789 950 C25622 1995 08 26.12814 00 11 08.42 +01 59 43.4 15789 950 C25622 1995 09 24.21934 00 08 41.14 +01 44 52.7 15789 709 C25707 1995 09 24.26378 00 08 41.02 +01 44 49.8 15789 709 C25707 1995 09 24.28603 00 08 40.57 +01 44 48.6 15789 709 C25707 1995 09 26.24748 00 08 30.26 +01 43 44.5 15789 709 C25707 1995 09 26.26969 00 08 30.02 +01 43 42.1 15789 709 C25707 1995 09 26.29193 00 08 30.08 +01 43 45.5 15789 709 C25707 1995 09 26.31417 00 08 29.78 +01 43 41.4 15789 709 C25707 1995 09 26.33642 00 08 29.64 +01 43 39.9 15789 709 C25707 1995 09 26.35867 00 08 29.71 +01 43 42.3 15789 709 C25707 1995 09 26.38090 00 08 29.40 +01 43 41.3 15789 709 C25707 1995 10 21.51053 00 06 19.81 +01 30 16.6 15789 413 C25787 1995 10 21.52310 00 06 19.73 +01 30 16.2 15789 413 C25787 1995 10 21.53282 00 06 19.72 +01 30 15.8 15789 413 C25787 1995 10 21.53958 00 06 19.69 +01 30 15.6 15789 413 C25787 1995 10 21.54922 00 06 19.63 +01 30 15.5 15789 413 C25787 1995 10 22.47424 00 06 15.31 +01 29 48.8 15789 568 C26491 1995 10 22.54072 00 06 15.01 +01 29 46.7 15789 568 C26491 1996 07 13.94056 00 19 52.54 +03 05 19.4 23.0V 15789 115 C29978 1996 07 14.01441 00 19 52.50 +03 05 19.3 15789 115 C29978 1996 07 14.95207 00 19 51.81 +03 05 18.2 15789 115 C29978 1996 07 14.96080 00 19 51.79 +03 05 18.2 15789 115 C29978 1996 07 14.96898 00 19 51.79 +03 05 18.2 15789 115 C29978 1996 07 14.97710 00 19 51.78 +03 05 18.0 15789 115 C29978 1996 09 05.24270 00 17 08.65 +02 50 22.9 21.7R 15789 675 C27800 1996 09 05.27641 00 17 08.50 +02 50 21.9 15789 675 C27800 1996 09 05.31155 00 17 08.33 +02 50 20.9 15789 675 C27800 1996 09 06.03933 00 17 04.67 +02 49 59.7 15789 950 C28270 1996 09 06.17791 00 17 03.98 +02 49 55.6 15789 950 C28270 1996 09 06.99128 00 16 59.96 +02 49 31.3 15789 950 C28270 1996 09 07.15273 00 16 59.15 +02 49 26.6 15789 950 C28270 1996 09 10.37928 00 16 42.85 +02 47 48.3 15789 711 C27868 1996 09 10.38749 00 16 42.77 +02 47 48.0 15789 711 C27868 1996 09 10.39562 00 16 42.76 +02 47 47.9 15789 711 C27868 1996 09 10.40431 00 16 42.70 +02 47 47.4 15789 711 C27868 1996 09 10.45534 00 16 42.41 +02 47 46.2 15789 711 C27868 1996 09 10.46314 00 16 42.40 +02 47 45.6 15789 711 C27868 1996 09 12.5093 00 16 31.89 +02 46 42.8 15789 568 C27786 1996 09 12.5325 00 16 31.76 +02 46 42.1 15789 568 C27786 1996 09 15.98970 00 16 13.68 +02 44 52.2 15789 950 C28050 1996 09 16.02257 00 16 13.51 +02 44 50.8 15789 950 C28050 1996 09 16.05493 00 16 13.33 +02 44 50.3 15789 950 C28050 1997 09 24.39483 00 22 20.45 +03 35 49.9 15789 568 Ca0006 1997 09 24.42795 00 22 20.25 +03 35 48.9 15789 568 Ca0006 1997 10 24.95776 00 19 42.50 +03 19 31.0 15789 950 Ca0097 1997 10 24.99565 00 19 42.31 +03 19 29.6 15789 950 Ca0097 1997 10 25.06510 00 19 41.98 +03 19 28.0 15789 950 Ca0097 1998 10 18.25251 00 27 03.21 +04 17 46.7 15789 705 Ca2529 1998 10 18.29146 00 27 03.04 +04 17 45.5 15789 705 Ca2529 1998 10 21.19081 00 26 48.55 +04 16 15.8 21.8R 15789 807 Ch2475 1998 10 21.23653 00 26 48.35 +04 16 14.0 15789 807 Ch2475 1999 11 09.20372 00 32 07.56 +05 01 17.9 15789 696 Ca7249 1999 11 09.25003 00 32 07.32 +05 01 17.1 22.1 15789 696 Ca7249 1999 11 09.29716 00 32 07.14 +05 01 15.5 15789 696 Ca7249 1999 11 10.09328 00 32 04.02 +05 00 56.2 15789 696 Ca7249 1999 11 10.14031 00 32 03.84 +05 00 54.3 15789 696 Ca7249
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 -0.17 0.00 -1.04 2 0.0005 0.00 -0.41 0.00 -0.75 3 0.0027 0.00 -0.40 0.00 -0.61 4 0.0054 0.00 0.99 0.00 -0.10 5 0.0056 0.00 -0.73 0.00 -0.39 6 0.0059 0.00 1.06 0.00 -0.07 7 0.0083 0.00 -1.62 0.00 -0.76 8 0.0084 0.00 1.02 0.00 -0.28 9 0.0088 0.00 0.88 0.00 -0.25 10 0.0137 0.00 0.58 0.00 0.00 11 0.0141 0.00 0.69 0.00 -0.24 12 0.0153 0.00 -0.54 0.00 -0.08 13 0.0154 0.00 -0.70 0.00 -0.49 14 0.1706 0.00 0.35 0.00 0.51 15 0.1709 0.00 0.54 0.00 0.78 16 0.1733 0.00 0.21 0.00 0.63 17 0.1737 0.00 0.24 0.00 0.57 18 0.8909 0.00 0.46 0.00 -0.15 19 0.8910 0.00 0.40 0.00 -0.19 20 0.8931 0.00 0.26 0.00 -0.22 21 0.8932 0.00 0.13 0.00 -0.38 22 0.8932 0.00 0.07 0.00 -0.60 23 0.8933 0.00 0.11 0.00 -0.35 24 0.9064 0.00 0.24 0.00 0.49 25 0.9066 0.00 0.50 0.00 0.43 26 0.9068 0.00 -0.06 0.00 0.47 27 0.9094 0.00 0.03 0.00 0.49 28 0.9095 0.00 0.38 0.00 0.71 29 1.1388 0.00 -0.08 0.00 1.07 30 1.1389 0.00 -0.16 0.00 1.06 31 1.1390 0.00 0.15 0.00 1.12 32 1.2762 0.00 -0.38 0.00 0.78 33 1.2931 0.00 -0.81 0.00 -0.12 34 1.2958 0.00 -0.61 0.00 0.19 35 1.8578 0.00 -0.47 0.00 0.20 36 1.8580 0.00 -0.68 0.00 0.22 37 1.9358 0.00 -0.70 0.00 -0.09 38 1.9361 0.00 -0.89 0.00 0.23 39 2.0157 0.00 0.31 0.00 0.67 40 2.0158 0.00 2.16 0.00 -0.76 41 2.0159 0.00 ( -2.76) 0.00 ( -1.23) 42 2.0213 0.00 1.28 0.00 -0.27 43 2.0213 0.00 -0.49 0.00 -1.93 44 2.0214 0.00 ( 2.24) 0.00 ( 2.21) 45 2.0214 0.00 -0.43 0.00 -1.15 46 2.0215 0.00 -0.70 0.00 -1.92 47 2.0216 0.00 ( 2.18) 0.00 ( 1.22) 48 2.0216 0.00 -0.64 0.00 0.96 49 2.0904 0.00 -0.21 0.00 0.26 50 2.0905 0.00 -0.51 0.00 0.23 51 2.0905 0.00 0.05 0.00 0.12 52 2.0905 0.00 0.08 0.00 0.12 53 2.0905 0.00 -0.12 0.00 0.30 54 2.0931 0.00 0.26 0.00 0.93 55 2.0932 0.00 0.46 0.00 0.77 56 2.8199 0.00 0.53 0.00 -0.26 57 2.8201 0.00 0.77 0.00 -0.28 58 2.8226 0.00 0.90 0.00 -0.04 59 2.8227 0.00 0.71 0.00 -0.03 60 2.8227 0.00 0.82 0.00 -0.01 61 2.8227 0.00 0.77 0.00 -0.20 62 2.9658 0.00 0.29 0.00 0.18 63 2.9659 0.00 0.56 0.00 0.17 64 2.9660 0.00 0.64 0.00 0.20 65 2.9680 0.00 -0.42 0.00 0.41 66 2.9684 0.00 -0.29 0.00 0.41 67 2.9706 0.00 -0.22 0.00 0.28 68 2.9710 0.00 -0.06 0.00 0.40 69 2.9799 0.00 -0.07 0.00 -0.08 70 2.9799 0.00 -0.63 0.00 -0.12 71 2.9799 0.00 -0.15 0.00 0.03 72 2.9799 0.00 -0.37 0.00 -0.21 73 2.9801 0.00 -0.75 0.00 0.17 74 2.9801 0.00 -0.29 0.00 -0.19 75 2.9857 0.00 -0.16 0.00 0.38 76 2.9858 0.00 -0.28 0.00 0.41 77 2.9952 0.00 -0.93 0.00 -0.26 78 2.9953 0.00 -0.84 0.00 -0.61 79 2.9954 0.00 -0.94 0.00 -0.08 80 4.0176 0.00 0.07 0.00 0.11 81 4.0176 0.00 -0.22 0.00 0.19 82 4.1012 0.00 1.06 0.00 -0.52 83 4.1013 0.00 0.92 0.00 -0.80 84 4.1015 0.00 0.94 0.00 -0.36 85 5.0822 0.00 -0.08 0.00 0.07 86 5.0823 0.00 0.37 0.00 0.10 87 5.0902 0.00 0.53 0.00 0.64 88 5.0904 0.00 0.97 0.00 0.26 89 6.1416 0.00 0.22 0.00 -0.33 90 6.1417 0.00 -0.55 0.00 0.05 91 6.1419 0.00 -0.39 0.00 -0.34 92 6.1440 0.00 -0.36 0.00 0.48 93 6.1442 0.00 -0.24 0.00 -0.24
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.
15789 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.861 39.861 39.861 ecceobj 0.189 0.189 0.189 incobj 5.148 5.148 5.148 qmin 31.489 31.484 31.493 qmax 48.003 47.992 48.009 amean 39.456 39.456 39.456 amin 39.027 39.028 39.026 amax 39.937 39.933 39.942 emean 0.184 0.184 0.184 emin 0.165 0.165 0.166 emax 0.202 0.202 0.202 imean 5.889 5.889 5.889 imin 5.323 5.323 5.324 imax 6.530 6.530 6.529 fracstop 1.000 1.000 1.000 cjmean 3.001 3.001 3.001 libcent 0 180.6 179.8 180.9 libamp 0 79.4 78.8 79.6 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 180.5 180.4 180.5 kozaiamp 180.0 179.9 180.0