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: 00QL226
# Created Fri Nov 22 02:08:08 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 23 observations of 23
# Arc: 19.17y
# First observation: 2000/08/29
# Last observation: 2019/11/01
# Chi-squared of fit: 14.02 DOF: 40 RMS: 0.14
# Min/Max residuals: -0.28 0.27
# Exact a, adot, b, bdot, g, gdot:
1.775232E-05 3.046064E-02 -8.449176E-07 -1.310405E-03 2.770806E-02 -3.339174E-03
# Covariance matrix:
2.0979E-13 -2.4044E-14 -5.4037E-16 5.5698E-16 7.5515E-16 -1.9879E-14
-2.4044E-14 1.6218E-14 6.1341E-16 -6.3470E-16 2.9170E-14 2.2247E-14
-5.4037E-16 6.1341E-16 1.9749E-13 -1.1611E-14 7.0806E-16 9.2470E-16
5.5698E-16 -6.3470E-16 -1.1611E-14 9.3384E-16 -7.5658E-16 -9.5505E-16
7.5515E-16 2.9170E-14 7.0806E-16 -7.5658E-16 3.2930E-13 2.2537E-14
-1.9879E-14 2.2247E-14 9.2470E-16 -9.5505E-16 2.2537E-14 3.3764E-14
# lat0 lon0 xBary yBary zBary JD0
0.393354 -21.187404 0.053731 0.006736 -1.005119 2451785.653693
# Heliocentric elements and errors
Epoch: 2451786.5000 = 2000/08/30
Mean Anomaly: 330.47455 +/- 0.009
Argument of Peri: 214.05423 +/- 0.012
Long of Asc Node: 167.58003 +/- 0.000
Inclination: 2.48807 +/- 0.000
Eccentricity: 0.19012288 +/- 0.0001
Semi-Major Axis: 43.85119315 +/- 0.0044
Time of Perihelion: 2460485.4034 +/- 14.9
Perihelion: 35.51407802 +/- 0.0043
Aphelion: 52.18830827 +/- 0.0058
Period (y) 290.3891 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 34.57378866 +/- 0.0007
Ecliptic Y -13.45197383 +/- 0.0003
Ecliptic Z 0.24772954 +/- 0.0000
Ecliptic XDOT 0.00077370 +/- 0.0000
Ecliptic YDOT 0.00293059 +/- 0.0000
Ecliptic ZDOT -0.00013159 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 37.09944892 +/- 0.0007
Geocenter to KBO 36.09068623 +/- 0.0007
# Hcoef: 8.29
The following table shows the complete astrometric record for 00QL226. 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 (00QL226) followed by the observatory code and reference code for the source of the astrometry.
2000 08 29.15295 22 41 05.75 -07 54 03.7 00QL226 809 Cb8401 2000 08 29.25209 22 41 05.24 -07 54 07.0 00QL226 809 Cb8401 2000 08 30.13214 22 41 00.88 -07 54 33.5 00QL226 809 Cb8401 2000 08 30.21740 22 41 00.46 -07 54 36.4 23.7R 00QL226 809 Cb8401 2000 08 30.30047 22 41 00.02 -07 54 38.7 00QL226 809 Cb8401 2000 08 30.34795 22 40 59.78 -07 54 40.5 00QL226 809 Cb8401 2000 08 30.39124 22 40 59.56 -07 54 41.4 00QL226 809 Cb8401 2013 09 30.16242 00 07 01.563 +00 04 25.99 23.3r 00QL226 W84 C~52RV 2013 10 13.09753 00 05 57.930 -00 02 34.74 22.9z 00QL226 W84 C~52RV 2013 10 13.11488 00 05 57.864 -00 02 35.31 23.9i 00QL226 W84 C~52RV 2013 11 22.07119 00 03 34.485 -00 18 10.89 23.4i 00QL226 W84 C~52RV 2013 11 23.09553 00 03 32.440 -00 18 23.69 23.4i 00QL226 W84 C~52RV 2016 09 09.33021 00 29 43.975 +02 16 30.35 23.8r 00QL226 W84 C~52RV 2017 08 22.32182 00 38 01.344 +03 05 11.54 23.7i 00QL226 W84 C~52RV 2017 09 27.19789 00 35 20.055 +02 47 06.54 23.2i 00QL226 W84 C~52RV 2017 09 27.19925 00 35 20.041 +02 47 06.52 23.9r 00QL226 W84 C~52RV 2018 09 09.25958 00 43 52.538 +03 37 02.12 22.8z 00QL226 W84 C~52RV 2018 10 10.23897 00 41 19.083 +03 20 12.23 22.6i 00QL226 W84 C~52RV 2018 10 18.15486 00 40 39.222 +03 15 55.00 22.8z 00QL226 W84 C~52RV 2019 11 01.32124 00 46 38.25 +03 49 00.0 25.7g 00QL226 T09 C~7b9u 2019 11 01.34266 00 46 38.16 +03 48 59.4 25.2g 00QL226 T09 C~7b9u 2019 11 01.42186 00 46 37.80 +03 48 57.1 24.9g 00QL226 T09 C~7b9u 2019 11 01.50543 00 46 37.41 +03 48 54.8 24.6g 00QL226 T09 C~7b9u
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 -0.01
2 0.0003 0.00 -0.19 0.00 -0.27
3 0.0027 0.00 0.06 0.00 0.23
4 0.0029 0.00 0.25 0.00 -0.05
5 0.0031 0.00 -0.03 0.00 0.19
6 0.0033 0.00 -0.03 0.00 -0.15
7 0.0034 0.00 -0.07 0.00 0.27
8 13.0870 0.00 0.23 0.00 -0.16
9 13.1224 0.00 -0.25 0.00 -0.05
10 13.1224 0.00 0.02 0.00 -0.08
11 13.2318 0.00 0.15 0.00 -0.28
12 13.2346 0.00 0.06 0.00 -0.06
13 16.0306 0.00 0.05 0.00 0.10
14 16.9806 0.00 -0.11 0.00 -0.02
15 17.0788 0.00 0.13 0.00 -0.08
16 17.0788 0.00 0.03 0.00 -0.05
17 18.0290 0.00 0.13 0.00 -0.12
18 18.1139 0.00 -0.07 0.00 -0.03
19 18.1355 0.00 -0.02 0.00 0.23
20 19.1736 0.00 -0.15 0.00 0.11
21 19.1737 0.00 -0.03 0.00 0.12
22 19.1739 0.00 0.04 0.00 0.06
23 19.1741 0.00 -0.08 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.
00QL226 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE axisobj 43.952 43.952 43.952 ecceobj 0.191 0.191 0.191 incobj 2.487 2.487 2.487 qmin 35.017 35.025 35.012 qmax 53.051 53.020 53.069 amean 43.727 43.727 43.727 amin 43.245 43.244 43.245 amax 44.267 44.267 44.267 emean 0.183 0.183 0.183 emin 0.168 0.168 0.168 emax 0.199 0.198 0.199 imean 3.282 3.285 3.283 imin 2.170 2.170 2.170 imax 4.553 4.551 4.556 excite_mean 0.192 0.192 0.192 fracstop 1.000 1.000 1.000 cjmean 3.054 3.054 3.054 libcent 0 182.6 181.9 182.6 libamp 0 108.0 108.6 108.0 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 215.9 216.0 215.8 kozaiamp 180.0 180.0 179.9