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: 01KA77
# Created Fri Apr 26 01:10:27 2024
# Orbit generated from Bernstein formalism
# Fitting 32 observations of 33
# Arc: 4.70y
# First observation: 2001/05/24
# Last observation: 2006/02/05
Preliminary a, adot, b, bdot, g, gdot:
-0.000157 0.017841 0.000012 0.003701 0.020253 0.000000
# Chi-squared of fit: 98.36 DOF: 58 RMS: 0.31
# Min/Max residuals: -1.20 0.56
# Exact a, adot, b, bdot, g, gdot:
1.323607E-05 1.799888E-02 4.359985E-06 3.747361E-03 2.086825E-02 -1.593847E-03
# Covariance matrix:
1.2407E-13 -9.8303E-14 5.0442E-15 -1.1641E-14 4.6114E-14 -7.1668E-13
-9.8303E-14 2.1267E-13 -1.3591E-14 3.5577E-14 1.6778E-14 2.1086E-12
5.0442E-15 -1.3591E-14 7.6991E-14 -2.5516E-14 -1.7589E-15 -1.4828E-13
-1.1641E-14 3.5577E-14 -2.5516E-14 2.4698E-14 8.9541E-15 3.9633E-13
4.6114E-14 1.6778E-14 -1.7589E-15 8.9541E-15 1.4774E-13 4.5624E-13
-7.1668E-13 2.1086E-12 -1.4828E-13 3.9633E-13 4.5624E-13 2.3350E-11
# lat0 lon0 xBary yBary zBary JD0
1.952833 -111.634948 0.094580 0.034451 -1.014118 2452053.696633
# Heliocentric elements and errors
Epoch: 2452050.5000 = 2001/05/21
Mean Anomaly: 251.95543 +/- 0.068
Argument of Peri: 127.32428 +/- 0.062
Long of Asc Node: 239.18559 +/- 0.000
Inclination: 11.96069 +/- 0.000
Eccentricity: 0.09586915 +/- 0.0002
Semi-Major Axis: 47.15489392 +/- 0.0036
Time of Perihelion: 2487547.2846 +/- 21.9
Perihelion: 42.63419442 +/- 0.0117
Aphelion: 51.67559342 +/- 0.0119
Period (y) 323.8160 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -18.11531571 +/- 0.0003
Ecliptic Y -45.42116921 +/- 0.0008
Ecliptic Z 1.63315622 +/- 0.0000
Ecliptic XDOT 0.00226986 +/- 0.0000
Ecliptic YDOT -0.00065852 +/- 0.0000
Ecliptic ZDOT 0.00048443 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 48.92764531 +/- 0.0008
Geocenter to KBO 47.91968279 +/- 0.0009
# Hcoef: 5.12
The following table shows the complete astrometric record for 01KA77. 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 (01KA77) followed by the observatory code and reference code for the source of the astrometry.
2001 05 24.19589 16 27 47.60 -19 46 18.5 21.2R 01KA77 807 Cd1817 2001 05 24.25835 16 27 47.33 -19 46 17.8 01KA77 807 Cd1817 2001 06 10.03516 16 26 34.28 -19 42 59.8 21.5R 01KA77 304 Cd1817 2001 06 10.11049 16 26 33.95 -19 42 58.8 01KA77 304 Cd1817 2001 06 19.22829 16 25 55.81 -19 41 20.2 21.9R 01KA77 688 Cd1817 2001 06 19.31404 16 25 55.43 -19 41 17.6 01KA77 688 Cd1817 2001 07 18.42436 16 24 15.362 -19 37 07.59 01KA77 568 Cl5660 2001 07 19.43102 16 24 12.748 -19 37 01.10 01KA77 568 Cl5660 2001 07 24.28278 16 24 01.04 -19 36 33.3 01KA77 568 Cd3323 2001 07 24.32274 16 24 00.94 -19 36 33.1 01KA77 568 Cd3323 2001 07 25.31408 16 23 58.76 -19 36 27.9 01KA77 568 Cd3323 2001 08 19.04925 16 23 28.37 -19 35 21.3 20.5R 01KA77 807 Cd7687 2001 08 20.05467 16 23 28.19 -19 35 21.1 01KA77 807 Cd7687 2001 08 21.05907 16 23 28.08 -19 35 21.3 01KA77 807 Cd7687 2002 02 15.33197 16 35 13.83 -19 55 53.4 22.2R 01KA77 304 f2336 2002 02 15.36296 16 35 13.89 -19 55 53.3 01KA77 304 f2336 2002 02 22.63887 16 35 26.15 -19 55 44.0 01KA77 568 Ce9336 2002 02 23.63600 16 35 27.50 -19 55 42.2 21.7R 01KA77 568 Ce9336 2002 06 07.48594 16 31 14.00 -19 40 16.8 01KA77 568 Cf8904 2002 06 07.48952 16 31 13.98 -19 40 16.8 01KA77 568 Cf8904 2002 06 07.49621 16 31 13.95 -19 40 16.9 01KA77 568 Cf8904 2002 06 07.50408 16 31 13.92 -19 40 16.6 01KA77 568 Cf8904 2002 06 07.50920 16 31 13.90 -19 40 16.6 01KA77 568 Cf8904 2002 07 09.99841 16 29 06.86 -19 35 06.3 21.2R 01KA77 304 Cf9823 2002 07 10.16450 16 29 06.31 -19 35 05.1 01KA77 304 Cf9823 2003 04 30.35088 16 38 22.88 -19 43 48.3 21.9R 01KA77 688 Ch8069 2003 04 30.41097 16 38 22.69 -19 43 47.1 01KA77 688 Ch8069 2005 06 29.27786 16 43 10.34 -19 24 46.3 23.3R 01KA77 688 Cn8276 2005 06 29.32454 16 43 10.12 -19 24 46.6 01KA77 688 Cn8276 2006 02 05.29101 16 52 19.87 -19 38 03.5 21.6R 01KA77 250 S~06AP 2006 02 05.29541 16 52 19.89 -19 38 03.5 01KA77 250 S~06AP 2006 02 05.29981 16 52 19.90 -19 38 03.5 01KA77 250 S~06AP 2006 02 05.30421 16 52 19.92 -19 38 03.5 01KA77 250 S~06AP
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 -0.31
2 0.0002 -3.87 0.18 0.10 -0.36
3 0.0461 -1053.50 -0.03 34.00 -0.31
4 0.0463 -1058.26 -0.10 34.25 -0.16
5 0.0713 -1605.70 0.32 46.47 -1.20
6 0.0715 -1611.42 -0.30 48.18 0.42
7 0.1512 -3046.97 -0.07 69.13 -0.33
8 0.1540 -3084.47 0.13 69.59 -0.13
9 0.1672 -3252.26 0.07 70.36 -0.17
10 0.1674 -3253.69 -0.03 70.33 -0.20
11 0.1701 -3284.93 0.08 70.49 -0.13
12 0.2378 -3719.62 -0.08 66.76 0.10
13 0.2405 -3722.16 0.03 66.54 0.23
14 0.2433 -3723.66 -0.05 66.09 0.14
15 0.7314 6312.48 0.37 378.67 -0.18
16 0.7315 6313.31 0.34 378.89 -0.09
17 0.7514 6483.19 -0.79 413.15 0.31
18 0.7541 6501.79 -0.50 417.69 0.15
19 1.0384 2824.66 -0.04 804.37 0.56
20 1.0384 2824.38 -0.10 804.33 0.52
21 1.0385 2823.97 -0.08 804.16 0.34
22 1.0385 2823.51 -0.04 804.40 0.56
23 1.0385 2823.23 0.00 804.35 0.51
24 1.1275 1001.86 0.16 837.49 0.07
25 1.1279 993.99 0.15 837.48 0.02
26 1.9333 8852.91 0.46 1477.93 0.39
27 1.9335 8850.08 ( 0.82) 1478.75 ( 0.99)
28 4.0988 12732.41 -0.02 3169.40 0.38
29 4.0989 12729.36 -0.43 3168.68 -0.35
30 4.7039 20592.71 0.02 3369.73 -0.20
31 4.7039 20592.99 0.10 3369.77 -0.19
32 4.7039 20593.13 0.04 3369.78 -0.20
33 4.7039 20593.41 0.13 3369.82 -0.19
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.
01KA77 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.204 47.215 47.193 ecceobj 0.098 0.098 0.098 incobj 11.958 11.958 11.959 qmin 42.128 42.017 42.136 qmax 53.147 53.151 53.160 amean 47.483 47.491 47.472 amin 47.086 47.080 47.080 amax 47.916 47.947 47.911 emean 0.094 0.094 0.094 emin 0.080 0.080 0.081 emax 0.110 0.110 0.110 imean 13.218 13.215 13.220 imin 12.897 12.888 12.914 imax 13.542 13.544 13.532 excite_mean 0.247 0.247 0.247 fracstop 1.000 1.000 1.000 cjmean 3.068 3.068 3.068 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 181.5 181.2 182.2 kozaiamp 180.0 180.0 180.0