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: 01KQ76
# Created Fri Apr 19 01:10:28 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 12 observations of 12
# Arc: 18.98y
# First observation: 2001/05/24
# Last observation: 2020/05/15
# Chi-squared of fit: 4.20 DOF: 18 RMS: 0.10
# Min/Max residuals: -0.23 0.27
# Exact a, adot, b, bdot, g, gdot:
1.522868E-05 2.388039E-02 -1.475576E-06 -2.522784E-03 2.449878E-02 -2.589349E-03
# Covariance matrix:
4.1761E-13 -4.3709E-14 -4.8652E-16 2.0035E-15 4.7733E-13 -3.9894E-14
-4.3709E-14 3.2446E-14 2.3262E-15 -3.2416E-15 -9.2421E-15 6.2574E-14
-4.8652E-16 2.3262E-15 3.5406E-13 -2.0723E-14 1.2224E-14 4.9300E-15
2.0035E-15 -3.2416E-15 -2.0723E-14 2.0060E-15 -3.5445E-15 -6.6593E-15
4.7733E-13 -9.2421E-15 1.2224E-14 -3.5445E-15 4.7897E-12 5.5997E-14
-3.9894E-14 6.2574E-14 4.9300E-15 -6.6593E-15 5.5997E-14 1.2835E-13
# lat0 lon0 xBary yBary zBary JD0
1.598592 -147.408963 -0.513722 0.024438 -0.879747 2452053.514313
# Heliocentric elements and errors
Epoch: 2452054.5000 = 2001/05/25
Mean Anomaly: 288.18588 +/- 0.127
Argument of Peri: 248.04093 +/- 0.159
Long of Asc Node: 47.72066 +/- 0.000
Inclination: 6.25775 +/- 0.000
Eccentricity: 0.09547494 +/- 0.0001
Semi-Major Axis: 42.59995072 +/- 0.0156
Time of Perihelion: 2472313.5662 +/- 57.2
Perihelion: 38.53272300 +/- 0.0144
Aphelion: 46.66717845 +/- 0.0173
Period (y) 278.0493 +/- 0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -34.83860001 +/- 0.0031
Ecliptic Y -22.87984795 +/- 0.0020
Ecliptic Z 1.13863780 +/- 0.0001
Ecliptic XDOT 0.00166617 +/- 0.0000
Ecliptic YDOT -0.00209467 +/- 0.0000
Ecliptic ZDOT -0.00028970 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.69552615 +/- 0.0028
Geocenter to KBO 40.81847224 +/- 0.0036
# Hcoef: 6.50
The following table shows the complete astrometric record for 01KQ76. 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 (01KQ76) followed by the observatory code and reference code for the source of the astrometry.
2001 05 24.01357 14 03 48.55 -10 52 11.7 22.4R 01KQ76 807 Cd1817 2001 05 24.12181 14 03 48.11 -10 52 09.7 01KQ76 807 Cd1817 2001 06 09.00485 14 02 52.24 -10 47 58.8 23.0R 01KQ76 304 Cd1817 2001 06 09.05390 14 02 52.09 -10 47 58.2 01KQ76 304 Cd1817 2015 05 20.12607 15 19 43.00 -18 55 14.8 01KQ76 W84 C~2zrF 2015 05 21.12629 15 19 37.94 -18 54 57.2 23.2V 01KQ76 W84 C~2zrF 2015 05 23.11956 15 19 27.90 -18 54 22.5 01KQ76 W84 C~2zrF 2019 06 06.285850 15 41 59.171 -20 53 06.39 22.4G 01KQ76 G37 C~36iU 2019 06 06.327330 15 41 58.958 -20 53 05.75 01KQ76 G37 C~36iU 2020 05 15.46027 15 49 53.664 -21 27 20.37 22.1w 01KQ76 F51 C~3skw 2020 05 15.47136 15 49 53.607 -21 27 20.58 22.3w 01KQ76 F51 C~3skw 2020 05 15.48232 15 49 53.538 -21 27 20.09 22.2w 01KQ76 F51 C~3skw
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 0.03 0.00 -0.04
2 0.0003 0.00 -0.02 0.00 -0.03
3 0.0438 0.00 0.00 0.00 0.06
4 0.0439 0.00 0.04 0.00 0.02
5 13.9880 0.00 -0.23 0.00 -0.02
6 13.9907 0.00 -0.06 0.00 0.05
7 13.9962 0.00 0.27 0.00 -0.10
8 18.0350 0.00 0.01 0.00 -0.01
9 18.0351 0.00 -0.06 0.00 0.00
10 18.9773 0.00 0.04 0.00 0.16
11 18.9773 0.00 0.07 0.00 -0.21
12 18.9773 0.00 -0.08 0.00 0.12
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.
01KQ76 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.527 42.527 42.527 ecceobj 0.097 0.097 0.097 incobj 6.263 6.263 6.263 qmin 37.977 37.975 37.980 qmax 47.937 47.947 47.933 amean 42.852 42.852 42.853 amin 42.499 42.508 42.502 amax 43.223 43.215 43.226 emean 0.086 0.086 0.086 emin 0.061 0.061 0.060 emax 0.110 0.110 0.110 imean 4.093 4.093 4.093 imin 2.503 2.503 2.503 imax 5.649 5.649 5.649 excite_mean 0.113 0.113 0.113 fracstop 1.000 1.000 1.000 cjmean 3.073 3.073 3.073 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 180.8 180.8 180.8 kozaiamp 180.0 179.9 180.0