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: 01KD77
# Created Fri May 2 02:36:34 2008
# Orbit generated from Bernstein formalism
# Fitting 23 observations of 26
# Arc: 4.10y
# First observation: 2001/05/24
# Last observation: 2005/06/29
Preliminary a, adot, b, bdot, g, gdot:
-0.000271 0.032432 0.000001 -0.000440 0.028535 0.000000
# Chi-squared of fit: 37.40 DOF: 40 RMS: 0.23
# Min/Max residuals: -0.73 0.54
# Exact a, adot, b, bdot, g, gdot:
1.518916E-05 3.250958E-02 -2.774990E-07 -4.422973E-04 2.919486E-02 1.283909E-03
# Covariance matrix:
2.3612E-13 -2.5494E-13 -3.1633E-16 2.9597E-15 6.1433E-14 -1.7831E-12
-2.5494E-13 5.1172E-13 2.5747E-15 -7.2431E-15 1.3376E-14 4.1449E-12
-3.1633E-16 2.5747E-15 1.2863E-13 -5.2161E-14 2.7725E-15 2.3104E-14
2.9597E-15 -7.2431E-15 -5.2161E-14 4.2699E-14 -7.8814E-16 -6.4071E-14
6.1433E-14 1.3376E-14 2.7725E-15 -7.8814E-16 2.2807E-13 1.4817E-13
-1.7831E-12 4.1449E-12 2.3104E-14 -6.4071E-14 1.4817E-13 3.6625E-11
# lat0 lon0 xBary yBary zBary JD0
2.178298 -110.659949 0.111707 0.038375 -1.012234 2452053.703933
# Heliocentric elements and errors
Epoch: 2452050.5000 = 2001/05/21
Mean Anomaly: 17.40753 +/- 0.072
Argument of Peri: 88.24344 +/- 0.093
Long of Asc Node: 139.17403 +/- 0.009
Inclination: 2.25158 +/- 0.000
Eccentricity: 0.10942689 +/- 0.0001
Semi-Major Axis: 39.31364366 +/- 0.0040
Time of Perihelion: 2447696.9055 +/- 18.0
Perihelion: 35.01167388 +/- 0.0062
Aphelion: 43.61561344 +/- 0.0068
Period (y) 246.5035 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -12.53428647 +/- 0.0002
Ecliptic Y -32.92991818 +/- 0.0005
Ecliptic Z 1.30190827 +/- 0.0000
Ecliptic XDOT 0.00280123 +/- 0.0000
Ecliptic YDOT -0.00118742 +/- 0.0000
Ecliptic ZDOT -0.00003668 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 35.25879767 +/- 0.0005
Geocenter to KBO 34.25260436 +/- 0.0006
# Hcoef: 5.62
The following table shows the complete astrometric record for 01KD77. 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 (01KD77) followed by the observatory code and reference code for the source of the astrometry.
2001 05 24.20319 16 32 01.90 -19 41 51.1 20.5R 01KD77 807 Cd1817 2001 05 24.26615 16 32 01.53 -19 41 50.3 01KD77 807 Cd1817 2001 06 09.01166 16 30 29.45 -19 38 37.4 20.9R 01KD77 304 Cd1817 2001 06 09.06293 16 30 29.14 -19 38 36.9 01KD77 304 Cd1817 2001 06 19.22068 16 29 31.75 -19 36 44.4 20.2R 01KD77 688 Cd1817 2001 06 19.28609 16 29 31.51 -19 36 43.6 01KD77 688 Cd1817 2001 07 22.22434 16 27 04.62 -19 32 38.8 21.0R 01KD77 688 Cd2368 2001 07 22.26943 16 27 04.49 -19 32 37.6 01KD77 688 Cd2368 2001 08 19.06387 16 26 17.39 -19 32 33.4 19.8R 01KD77 807 Cd7687 2001 08 20.07112 16 26 17.29 -19 32 36.2 01KD77 807 Cd7687 2001 08 21.07467 16 26 17.32 -19 32 41.1 01KD77 807 Cd7687 2002 02 22.64292 16 43 37.66 -20 10 17.4 21. R 01KD77 568 Ce9336 2002 02 23.63953 16 43 39.98 -20 10 18.5 01KD77 568 Ce9336 2002 05 19.34571 16 40 18.84 -20 00 18.1 20.5R 01KD77 644 Cl2614 2002 06 03.26013 16 38 52.02 -19 57 26.7 01KD77 675 Cf7160 2002 06 03.32390 16 38 51.64 -19 57 25.9 01KD77 675 Cf7160 2002 07 13.13774 16 35 21.77 -19 51 28.2 21.2R 01KD77 304 Cf9823 2002 07 13.16267 16 35 21.67 -19 51 28.0 01KD77 304 Cf9823 2002 07 18.00980 16 35 02.58 -19 51 02.9 01KD77 304 Cf9823 2002 07 18.19089 16 35 01.89 -19 51 02.1 01KD77 304 Cf9823 2003 05 01.53887 16 49 41.29 -20 19 27.1 21.5R 01KD77 568 Ch9866 2003 05 01.58457 16 49 41.07 -20 19 26.6 01KD77 568 Ch9866 2004 05 26.19208 16 55 13.91 -20 29 55.1 21.2R 01KD77 304 Ck8652 2004 05 26.22572 16 55 13.72 -20 29 54.8 01KD77 304 Ck8652 2005 06 29.29364 16 59 47.86 -20 39 09.9 01KD77 688 Cn8276 2005 06 29.33996 16 59 47.63 -20 39 09.7 01KD77 688 Cn8276
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 0.50 0.00 0.01 2 0.0002 -5.29 0.54 0.01 0.02 3 0.0433 -1320.12 0.30 -4.61 0.15 4 0.0434 -1324.53 0.17 -4.78 0.05 5 0.0712 -2143.09 -0.73 -16.84 -0.08 6 0.0714 -2146.57 ( 0.98) -16.57 ( 0.31) 7 0.1616 -4235.95 -0.33 -95.40 -0.13 8 0.1617 -4237.95 ( -0.27) -94.50 ( 0.91) 9 0.2378 -4896.49 -0.05 -194.79 -0.14 10 0.2406 -4897.45 ( -0.33) -197.78 ( 0.76) 11 0.2433 -4896.26 -0.16 -202.55 -0.12 12 0.7514 9961.10 -0.41 -310.48 -0.02 13 0.7541 9993.70 -0.45 -307.26 -0.23 14 0.9860 7100.15 -0.18 -92.97 0.00 15 1.0268 5863.08 0.23 -92.09 0.04 16 1.0270 5857.66 0.23 -92.04 0.13 17 1.1360 2875.51 0.02 -157.18 0.21 18 1.1361 2874.09 0.09 -157.18 0.28 19 1.1494 2603.91 -0.03 -171.25 -0.02 20 1.1499 2594.16 0.00 -171.86 -0.08 21 1.9366 15126.09 0.05 -203.39 -0.07 22 1.9367 15122.94 0.04 -203.27 -0.03 23 3.0061 19877.77 0.10 -272.12 0.13 24 3.0062 19875.06 0.22 -272.12 0.13 25 4.0988 23806.39 -0.26 -397.19 -0.08 26 4.0989 23803.11 0.08 -397.33 -0.14
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.
01KD77 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.332 39.332 39.332 ecceobj 0.109 0.109 0.109 incobj 2.251 2.251 2.251 qmin 34.144 34.144 34.144 qmax 45.351 45.342 45.358 amean 39.460 39.460 39.460 amin 39.001 39.007 38.996 amax 39.954 39.958 39.951 emean 0.115 0.115 0.115 emin 0.094 0.094 0.094 emax 0.136 0.136 0.136 imean 2.381 2.381 2.381 imin 1.161 1.161 1.161 imax 3.608 3.609 3.608 fracstop 1.000 1.000 1.000 cjmean 3.035 3.035 3.035 libcent 0 179.0 179.1 179.2 libamp 0 104.3 104.3 104.5 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 179.5 179.7 179.5 kozaiamp 179.9 179.9 180.0