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 Nov 22 02:08:13 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 43 observations of 43
# Arc: 14.96y
# First observation: 2001/05/24
# Last observation: 2016/05/07
# Chi-squared of fit: 161.53 DOF: 80 RMS: 0.34
# Min/Max residuals: -1.13 0.75
# Exact a, adot, b, bdot, g, gdot:
1.294325E-05 1.800006E-02 3.757315E-06 3.748210E-03 2.086869E-02 -1.580952E-03
# Covariance matrix:
9.2148E-14 -3.3425E-14 5.8564E-15 -4.8976E-15 4.4818E-14 -9.5811E-14
-3.3425E-14 2.5115E-14 -4.9099E-15 4.3863E-15 -2.2280E-14 8.5091E-14
5.8564E-15 -4.9099E-15 5.6443E-14 -6.4201E-15 4.9709E-15 -1.7548E-14
-4.8976E-15 4.3863E-15 -6.4201E-15 2.2510E-15 -2.8289E-15 1.6059E-14
4.4818E-14 -2.2280E-14 4.9709E-15 -2.8289E-15 1.1051E-13 -5.8747E-14
-9.5811E-14 8.5091E-14 -1.7548E-14 1.6059E-14 -5.8747E-14 3.1062E-13
# lat0 lon0 xBary yBary zBary JD0
1.952833 -111.634948 0.094580 0.034451 -1.014118 2452053.696633
# Heliocentric elements and errors
Epoch: 2452054.5000 = 2001/05/25
Mean Anomaly: 251.74111 +/- 0.034
Argument of Peri: 127.46934 +/- 0.027
Long of Asc Node: 239.18718 +/- 0.000
Inclination: 11.96252 +/- 0.000
Eccentricity: 0.09523935 +/- 0.0000
Semi-Major Axis: 47.15220448 +/- 0.0031
Time of Perihelion: 2487618.6565 +/- 13.9
Perihelion: 42.66145926 +/- 0.0034
Aphelion: 51.64294969 +/- 0.0039
Period (y) 323.7883 +/- 0.03
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -18.11495654 +/- 0.0003
Ecliptic Y -45.42022557 +/- 0.0007
Ecliptic Z 1.63309290 +/- 0.0000
Ecliptic XDOT 0.00226934 +/- 0.0000
Ecliptic YDOT -0.00066013 +/- 0.0000
Ecliptic ZDOT 0.00048459 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 48.92669250 +/- 0.0007
Geocenter to KBO 47.91876908 +/- 0.0008
# Hcoef: 5.21
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 2010 03 04.990030 17 11 08.166 -19 12 05.46 01KA77 250 S~82lx 2010 03 04.992414 17 11 08.166 -19 12 05.47 01KA77 250 S~82lx 2010 03 04.995227 17 11 08.167 -19 12 05.47 01KA77 250 S~82lx 2010 03 04.997611 17 11 08.167 -19 12 05.47 01KA77 250 S~82ly 2013 03 11.370633 17 24 41.719 -18 48 09.14 22.3r 01KA77 W84 C~8GhH 2013 03 11.372117 17 24 41.722 -18 48 09.14 22.4r 01KA77 W84 C~8GhH 2014 06 30.222142 17 24 05.873 -18 25 40.69 22.2r 01KA77 W84 C~8GhH 2016 04 03.587406 17 38 16.22 -18 17 48.9 01KA77 T14 C~82ly 2016 05 03.491090 17 37 14.43 -18 13 30.3 01KA77 T14 C~82ly 2016 05 07.573038 17 37 01.16 -18 12 56.9 01KA77 T14 C~82ly
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 0.12 0.00 -0.21
2 0.0002 0.00 0.22 0.00 -0.27
3 0.0461 0.00 0.01 0.00 -0.20
4 0.0463 0.00 -0.03 0.00 -0.04
5 0.0713 0.00 0.24 0.00 -1.13
6 0.0715 0.00 -0.14 0.00 0.56
7 0.1512 0.00 -0.01 0.00 -0.24
8 0.1540 0.00 0.22 0.00 -0.06
9 0.1672 0.00 0.16 0.00 -0.10
10 0.1674 0.00 0.05 0.00 -0.11
11 0.1701 0.00 0.18 0.00 -0.06
12 0.2378 0.00 0.04 0.00 0.18
13 0.2405 0.00 0.17 0.00 0.29
14 0.2433 0.00 0.07 0.00 0.21
15 0.7314 0.00 0.22 0.00 -0.21
16 0.7315 0.00 0.21 0.00 -0.11
17 0.7514 0.00 -0.92 0.00 0.44
18 0.7541 0.00 -0.64 0.00 0.23
19 1.0384 0.00 -0.10 0.00 0.54
20 1.0384 0.00 -0.16 0.00 0.50
21 1.0385 0.00 -0.17 0.00 0.32
22 1.0385 0.00 -0.10 0.00 0.53
23 1.0385 0.00 -0.06 0.00 0.47
24 1.1275 0.00 0.04 0.00 0.00
25 1.1279 0.00 0.01 0.00 -0.04
26 1.9333 0.00 0.28 0.00 0.17
27 1.9335 0.00 0.75 0.00 0.72
28 4.0988 0.00 -0.24 0.00 -0.02
29 4.0989 0.00 -0.77 0.00 -0.69
30 4.7039 0.00 0.04 0.00 -0.69
31 4.7039 0.00 0.13 0.00 -0.69
32 4.7039 0.00 0.07 0.00 -0.69
33 4.7039 0.00 0.16 0.00 -0.69
34 8.7797 0.00 0.29 0.00 -0.12
35 8.7797 0.00 0.25 0.00 -0.15
36 8.7797 0.00 0.21 0.00 -0.16
37 8.7797 0.00 0.17 0.00 -0.17
38 11.7979 0.00 0.10 0.00 0.10
39 11.7979 0.00 0.12 0.00 0.09
40 13.1007 0.00 0.07 0.00 0.09
41 14.8621 0.00 -0.22 0.00 0.21
42 14.9440 0.00 -0.16 0.00 0.11
43 14.9552 0.00 -0.09 0.00 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.
01KA77 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 47.200 47.200 47.201 ecceobj 0.097 0.097 0.097 incobj 11.960 11.960 11.960 qmin 42.144 42.156 42.134 qmax 53.096 53.128 53.039 amean 47.480 47.480 47.480 amin 47.095 47.083 47.095 amax 47.916 47.920 47.900 emean 0.094 0.094 0.094 emin 0.080 0.080 0.080 emax 0.109 0.109 0.108 imean 13.219 13.219 13.219 imin 12.905 12.901 12.906 imax 13.535 13.537 13.534 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 182.4 182.2 182.2 kozaiamp 179.9 180.0 180.0