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: 01KG76
# Created Sun Dec 22 02:08:15 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 39 observations of 39
# Arc: 6.97y
# First observation: 2001/05/22
# Last observation: 2008/05/09
# Chi-squared of fit: 20.99 DOF: 72 RMS: 0.13
# Min/Max residuals: -0.35 0.26
# Exact a, adot, b, bdot, g, gdot:
1.579895E-05 2.254972E-02 -1.022219E-06 -5.173149E-04 2.332862E-02 7.376264E-03
# Covariance matrix:
1.8989E-13 -1.0149E-13 -1.1718E-15 1.5142E-15 8.3439E-14 -4.7909E-13
-1.0149E-13 8.4894E-14 1.4363E-15 -1.6086E-15 -1.9639E-14 4.9263E-13
-1.1718E-15 1.4363E-15 9.4904E-14 -2.4305E-14 9.8120E-16 1.0220E-14
1.5142E-15 -1.6086E-15 -2.4305E-14 1.0586E-14 -2.4071E-16 -1.1003E-14
8.3439E-14 -1.9639E-14 9.8120E-16 -2.4071E-16 2.7329E-13 8.3507E-15
-4.7909E-13 4.9263E-13 1.0220E-14 -1.1003E-14 8.3507E-15 3.3358E-12
# lat0 lon0 xBary yBary zBary JD0
0.853314 -116.463100 0.042607 0.015030 -1.017749 2452051.709323
# Heliocentric elements and errors
Epoch: 2452052.5000 = 2001/05/23
Mean Anomaly: 47.31684 +/- 0.012
Argument of Peri: 63.03076 +/- 0.013
Long of Asc Node: 96.00487 +/- 0.005
Inclination: 1.55024 +/- 0.000
Eccentricity: 0.34009842 +/- 0.0001
Semi-Major Axis: 51.25172357 +/- 0.0076
Time of Perihelion: 2434437.8370 +/- 6.0
Perihelion: 33.82109319 +/- 0.0070
Aphelion: 68.68235395 +/- 0.0113
Period (y) 366.9196 +/- 0.08
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -19.58745685 +/- 0.0004
Ecliptic Y -39.25730715 +/- 0.0009
Ecliptic Z 0.63833918 +/- 0.0000
Ecliptic XDOT 0.00197462 +/- 0.0000
Ecliptic YDOT -0.00195271 +/- 0.0000
Ecliptic ZDOT -0.00004762 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.87702558 +/- 0.0008
Geocenter to KBO 42.86563490 +/- 0.0010
# Hcoef: 6.43
The following table shows the complete astrometric record for 01KG76. 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 (01KG76) followed by the observatory code and reference code for the source of the astrometry.
2001 05 22.20858 16 06 45.68 -20 01 22.4 22.0R 01KG76 807 Cd1817 2001 05 22.28897 16 06 45.29 -20 01 21.3 01KG76 807 Cd1817 2001 06 10.02875 16 05 16.38 -19 57 27.3 22.9R 01KG76 304 Cd1817 2001 06 10.10380 16 05 16.05 -19 57 26.3 01KG76 304 Cd1817 2001 08 19.03454 16 02 18.80 -19 50 35.3 21.4R 01KG76 807 Cd7687 2001 08 20.03188 16 02 19.15 -19 50 37.8 01KG76 807 Cd7687 2001 08 21.03938 16 02 19.58 -19 50 40.7 01KG76 807 Cd7687 2002 04 07.29240 16 15 09.97 -20 25 16.3 21.6R 01KG76 807 Cf4617 2002 04 07.38861 16 15 09.68 -20 25 15.6 01KG76 807 Cf4617 2002 05 12.03950 16 12 54.85 -20 19 22.5 01KG76 950 Cf4617 2002 05 12.08513 16 12 54.63 -20 19 21.8 01KG76 950 Cf4617 2002 05 12.13062 16 12 54.41 -20 19 21.3 01KG76 950 Cf4617 2002 05 13.04812 16 12 50.15 -20 19 10.5 01KG76 950 Cf4617 2002 05 13.11749 16 12 49.83 -20 19 09.6 01KG76 950 Cf4617 2002 07 10.99718 16 08 34.27 -20 08 36.4 22.2R 01KG76 304 Cf9823 2002 07 11.20921 16 08 33.59 -20 08 35.0 01KG76 304 Cf9823 2002 07 13.10322 16 08 27.82 -20 08 21.5 01KG76 304 Cf9823 2002 07 13.12814 16 08 27.74 -20 08 21.4 01KG76 304 Cf9823 2004 05 25.25597 16 22 20.07 -20 46 04.8 22.9R 01KG76 304 Ck8652 2004 05 25.25766 16 22 20.06 -20 46 04.8 01KG76 304 Ck8652 2004 05 25.25922 16 22 20.06 -20 46 04.7 01KG76 304 Ck8652 2004 05 25.26044 16 22 20.05 -20 46 04.8 01KG76 304 Ck8652 2004 05 25.26166 16 22 20.04 -20 46 04.7 01KG76 304 Ck8652 2004 05 25.26370 16 22 20.04 -20 46 04.8 01KG76 304 Ck8652 2004 05 25.26608 16 22 20.04 -20 46 04.4 01KG76 304 Ck8652 2004 05 25.26845 16 22 20.00 -20 46 04.6 01KG76 304 Ck8652 2004 05 25.27082 16 22 19.99 -20 46 04.5 01KG76 304 Ck8652 2004 05 25.27294 16 22 19.98 -20 46 04.6 01KG76 304 Ck8652 2004 05 25.27462 16 22 19.97 -20 46 04.6 01KG76 304 Ck8652 2004 05 28.03370 16 22 06.84 -20 45 34.4 22.7R 01KG76 304 Ck8652 2004 05 28.05579 16 22 06.76 -20 45 34.3 01KG76 304 Ck8652 2004 05 28.07845 16 22 06.64 -20 45 34.2 01KG76 304 Ck8652 2004 05 28.10130 16 22 06.54 -20 45 34.0 01KG76 304 Ck8652 2004 05 28.12461 16 22 06.43 -20 45 33.6 01KG76 304 Ck8652 2004 05 28.17828 16 22 06.17 -20 45 32.9 01KG76 304 Ck8652 2008 05 09.75518 16 43 51.17 -21 37 58.1 24.8R 01KG76 250 S~06AP 2008 05 09.76143 16 43 51.14 -21 37 58.1 01KG76 250 S~06AP 2008 05 09.76768 16 43 51.12 -21 37 58.0 01KG76 250 S~06AP 2008 05 09.77393 16 43 51.07 -21 37 58.1 01KG76 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 0.16
2 0.0002 0.00 -0.04 0.00 0.22
3 0.0515 0.00 -0.20 0.00 0.02
4 0.0517 0.00 0.09 0.00 0.14
5 0.2432 0.00 -0.09 0.00 -0.01
6 0.2459 0.00 0.04 0.00 -0.10
7 0.2487 0.00 -0.09 0.00 -0.30
8 0.8763 0.00 0.12 0.00 -0.14
9 0.8766 0.00 0.00 0.00 -0.19
10 0.9715 0.00 0.21 0.00 0.04
11 0.9716 0.00 0.13 0.00 0.20
12 0.9717 0.00 0.04 0.00 0.16
13 0.9742 0.00 -0.06 0.00 0.04
14 0.9744 0.00 0.06 0.00 0.12
15 1.1356 0.00 0.22 0.00 0.03
16 1.1362 0.00 0.17 0.00 -0.12
17 1.1414 0.00 0.09 0.00 0.14
18 1.1415 0.00 0.03 0.00 0.06
19 3.0090 0.00 -0.02 0.00 -0.06
20 3.0090 0.00 -0.05 0.00 -0.08
21 3.0090 0.00 0.06 0.00 -0.00
22 3.0090 0.00 0.00 0.00 -0.11
23 3.0090 0.00 -0.06 0.00 -0.03
24 3.0090 0.00 0.09 0.00 -0.15
25 3.0091 0.00 0.26 0.00 0.22
26 3.0091 0.00 -0.17 0.00 -0.00
27 3.0091 0.00 -0.15 0.00 0.07
28 3.0091 0.00 -0.14 0.00 -0.05
29 3.0091 0.00 -0.17 0.00 -0.07
30 3.0166 0.00 -0.35 0.00 0.07
31 3.0167 0.00 0.04 0.00 -0.07
32 3.0168 0.00 -0.12 0.00 -0.21
33 3.0168 0.00 0.03 0.00 -0.25
34 3.0169 0.00 0.07 0.00 -0.10
35 3.0170 0.00 0.07 0.00 0.02
36 6.9666 0.00 0.16 0.00 0.05
37 6.9666 0.00 0.11 0.00 -0.00
38 6.9666 0.00 0.21 0.00 0.05
39 6.9666 0.00 -0.14 0.00 -0.10
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.
01KG76 quality flag:3 Type: 9:4EEEEE 9:4EEEEE 9:4EEEEE axisobj 51.177 51.178 51.177 ecceobj 0.338 0.338 0.338 incobj 1.550 1.550 1.550 qmin 33.449 33.448 33.449 qmax 70.970 70.952 70.965 amean 51.700 51.701 51.700 amin 51.096 51.090 51.109 amax 52.475 52.444 52.457 emean 0.342 0.342 0.342 emin 0.332 0.332 0.332 emax 0.353 0.353 0.353 imean 0.254 0.254 0.254 imin 0.093 0.093 0.093 imax 0.413 0.413 0.413 excite_mean 0.342 0.342 0.342 fracstop 1.000 1.000 1.000 cjmean 3.045 3.045 3.045 libcent 0 178.8 179.6 178.9 libamp 0 70.9 71.4 71.3 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 227.3 227.1 227.7 kozaiamp 180.0 180.0 180.0