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: 06AN98
# Created Wed Dec 25 02:08:47 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 20 observations of 20
# Arc: 15.88y
# First observation: 2005/04/05
# Last observation: 2021/02/21
# Chi-squared of fit: 71.93 DOF: 34 RMS: 0.34
# Min/Max residuals: -0.66 0.91
# Exact a, adot, b, bdot, g, gdot:
1.517573E-05 2.336310E-02 2.315042E-06 6.616580E-04 2.391682E-02 -1.099004E-03
# Covariance matrix:
4.2001E-13 -3.9179E-13 8.0512E-15 -1.0737E-14 -7.8371E-14 -8.9329E-13
-3.9179E-13 7.0169E-13 -1.4108E-14 1.9754E-14 -1.7462E-13 1.6210E-12
8.0512E-15 -1.4108E-14 1.0434E-13 -1.0800E-14 3.0161E-15 -3.2868E-14
-1.0737E-14 1.9754E-14 -1.0800E-14 6.1556E-15 -5.0955E-15 4.5995E-14
-7.8371E-14 -1.7462E-13 3.0161E-15 -5.0955E-15 3.2691E-13 -3.9823E-13
-8.9329E-13 1.6210E-12 -3.2868E-14 4.5995E-14 -3.9823E-13 3.7750E-12
# lat0 lon0 xBary yBary zBary JD0
1.064018 126.010471 -0.933765 0.006548 -0.347352 2453465.825235
# Heliocentric elements and errors
Epoch: 2453466.5000 = 2005/04/06
Mean Anomaly: 315.19376 +/- 0.192
Argument of Peri: 81.34811 +/- 0.210
Long of Asc Node: 93.86194 +/- 0.003
Inclination: 1.91497 +/- 0.000
Eccentricity: 0.03715868 +/- 0.0000
Semi-Major Axis: 43.28174187 +/- 0.0060
Time of Perihelion: 2466411.1860 +/- 58.6
Perihelion: 41.67344960 +/- 0.0061
Aphelion: 44.89003413 +/- 0.0065
Period (y) 284.7510 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -25.54258105 +/- 0.0006
Ecliptic Y 33.54723749 +/- 0.0008
Ecliptic Z 0.77653177 +/- 0.0000
Ecliptic XDOT -0.00208829 +/- 0.0000
Ecliptic YDOT -0.00168241 +/- 0.0000
Ecliptic ZDOT 0.00007345 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.17161435 +/- 0.0007
Geocenter to KBO 41.81166223 +/- 0.0010
# Hcoef: 8.09
The following table shows the complete astrometric record for 06AN98. 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 (06AN98) followed by the observatory code and reference code for the source of the astrometry.
2005 04 05.324492 08 34 39.67 +19 48 02.1 06AN98 T14 C~63RQ 2005 04 06.270391 08 34 38.55 +19 48 05.2 06AN98 T14 C~63RQ 2005 04 06.335655 08 34 38.45 +19 48 05.7 06AN98 T14 C~63RQ 2006 01 05.60000 08 46 15.21 +19 07 12.9 06AN98 568 Cq2894 2006 01 05.632185 08 46 15.02 +19 07 12.6 06AN98 T09 C~63RQ 2006 01 05.65653 08 46 14.89 +19 07 13.2 06AN98 568 Cq2894 2006 01 06.63376 08 46 10.56 +19 07 31.8 24.2R 06AN98 568 Cq2894 2006 01 06.65528 08 46 10.46 +19 07 32.0 24.2R 06AN98 568 Cq2894 2006 02 01.282830 08 44 04.83 +19 15 52.6 06AN98 T09 C~63RQ 2006 02 01.294962 08 44 04.77 +19 15 52.9 06AN98 T09 C~63RQ 2006 02 01.308192 08 44 04.71 +19 15 53.0 06AN98 T09 C~63RQ 2006 02 02.323506 08 43 59.60 +19 16 13.3 23.9V 06AN98 T09 C~63RQ 2006 02 02.337512 08 43 59.54 +19 16 13.6 06AN98 T09 C~63RQ 2006 02 02.351537 08 43 59.46 +19 16 13.8 06AN98 T09 C~63RQ 2006 05 30.257307 08 41 20.67 +19 24 34.7 06AN98 T09 C~63RQ 2006 05 30.271249 08 41 20.71 +19 24 34.4 06AN98 T09 C~63RQ 2006 05 30.284326 08 41 20.77 +19 24 34.2 06AN98 T09 C~63RQ 2006 05 30.297449 08 41 20.81 +19 24 34.0 06AN98 T09 C~63RQ 2006 11 24.483195 08 53 57.77 +18 37 47.4 06AN98 T14 C~63RQ 2021 02 21.215056 10 04 45.41 +13 30 32.9 06AN98 W84 C~63RQ
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 -0.04 0.00 -0.39
2 0.0026 0.00 0.04 0.00 -0.32
3 0.0028 0.00 -0.26 0.00 -0.01
4 0.7537 0.00 0.26 0.00 0.91
5 0.7538 0.00 -0.38 0.00 0.02
6 0.7538 0.00 -0.66 0.00 0.18
7 0.7565 0.00 0.90 0.00 0.52
8 0.7566 0.00 0.89 0.00 0.33
9 0.8267 0.00 -0.22 0.00 -0.26
10 0.8268 0.00 -0.19 0.00 -0.20
11 0.8268 0.00 -0.08 0.00 -0.36
12 0.8296 0.00 -0.12 0.00 0.11
13 0.8296 0.00 0.06 0.00 0.13
14 0.8296 0.00 -0.07 0.00 0.06
15 1.1497 0.00 0.07 0.00 -0.09
16 1.1498 0.00 -0.10 0.00 -0.18
17 1.1498 0.00 0.08 0.00 -0.17
18 1.1498 0.00 -0.04 0.00 -0.17
19 1.6377 0.00 -0.17 0.00 -0.15
20 15.8820 0.00 0.01 0.00 -0.01
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.
06AN98 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.154 43.154 43.154 ecceobj 0.031 0.031 0.031 incobj 1.913 1.913 1.913 qmin 40.762 40.757 40.770 qmax 45.668 45.664 45.667 amean 43.138 43.138 43.138 amin 42.809 42.810 42.809 amax 43.476 43.487 43.473 emean 0.031 0.031 0.031 emin 0.013 0.013 0.013 emax 0.051 0.051 0.051 imean 0.908 0.908 0.908 imin 0.415 0.415 0.415 imax 1.292 1.292 1.292 excite_mean 0.035 0.035 0.035 fracstop 1.000 1.000 1.000 cjmean 3.090 3.090 3.090 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 204.1 204.1 204.0 kozaiamp 179.9 179.9 179.9