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: 22QE261
# Created Wed Dec 25 02:11:19 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 11 observations of 11
# Arc: 6.04y
# First observation: 2017/08/23
# Last observation: 2023/09/06
# Chi-squared of fit: 2.04 DOF: 16 RMS: 0.08
# Min/Max residuals: -0.15 0.19
# Exact a, adot, b, bdot, g, gdot:
1.311836E-05 1.642290E-02 -1.851770E-06 -1.811837E-03 1.997105E-02 -3.845503E-04
# Covariance matrix:
1.4162E-12 -6.3446E-13 -3.1821E-14 4.6274E-14 -4.4289E-13 -4.0773E-12
-6.3446E-13 1.3497E-12 1.1670E-13 -1.5142E-13 1.9978E-12 1.3315E-11
-3.1821E-14 1.1670E-13 1.2267E-12 -2.4006E-13 1.9102E-13 1.1993E-12
4.6274E-14 -1.5142E-13 -2.4006E-13 6.4994E-14 -2.3523E-13 -1.5496E-12
-4.4289E-13 1.9978E-12 1.9102E-13 -2.3523E-13 3.5274E-12 2.0664E-11
-4.0773E-12 1.3315E-11 1.1993E-12 -1.5496E-12 2.0664E-11 1.3626E-10
# lat0 lon0 xBary yBary zBary JD0
4.038769 -37.309622 -0.133055 0.070696 -0.999462 2457988.595006
# Heliocentric elements and errors
Epoch: 2457988.5000 = 2017/08/23
Mean Anomaly: 189.53183 +/- 0.320
Argument of Peri: 320.27025 +/- 0.313
Long of Asc Node: 174.74659 +/- 0.003
Inclination: 7.45954 +/- 0.001
Eccentricity: 0.11664111 +/- 0.0001
Semi-Major Axis: 45.79149311 +/- 0.0108
Time of Perihelion: 2511582.5322 +/- 102.7
Perihelion: 40.45032265 +/- 0.0105
Aphelion: 51.13266358 +/- 0.0128
Period (y) 309.8742 +/- 0.11
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 40.60280570 +/- 0.0037
Ecliptic Y -30.78103738 +/- 0.0028
Ecliptic Z 3.52659391 +/- 0.0003
Ecliptic XDOT 0.00134152 +/- 0.0000
Ecliptic YDOT 0.00180626 +/- 0.0000
Ecliptic ZDOT -0.00025159 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 51.07345808 +/- 0.0034
Geocenter to KBO 50.07251969 +/- 0.0047
# Hcoef: 6.06
The following table shows the complete astrometric record for 22QE261. 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 (22QE261) followed by the observatory code and reference code for the source of the astrometry.
2017 08 23.094205 21 34 48.75 -10 07 48.2 23.0r 22QE261 W84 C~79O0 2020 11 26.037048 21 43 18.52 -09 51 47.4 23.0i 22QE261 W84 C~79O0 2022 08 30.09215 21 53 11.461 -09 06 46.99 23.2r 22QE261 807 C~6wt2 2022 08 31.10115 21 53 07.670 -09 07 09.15 23.1r 22QE261 807 C~6wt2 2022 10 15.04000 21 50 53.484 -09 21 42.54 23.0r 22QE261 304 C~6wt2 2022 10 16.01446 21 50 51.709 -09 21 56.63 23.0r 22QE261 304 C~6wt2 2022 10 21.00570 21 50 43.652 -09 23 04.34 23.1r 22QE261 304 C~6wt2 2023 06 23.30905 22 00 35.878 -08 34 25.47 23.1r 22QE261 304 C~6wt2 2023 06 24.41920 22 00 33.858 -08 34 33.69 23.0r 22QE261 304 C~6wt2 2023 09 06.134300 21 56 31.745 -08 56 06.13 23.0G 22QE261 G37 C~7Bo7 2023 09 06.219470 21 56 31.433 -08 56 07.99 22QE261 G37 C~7Bo7
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 -0.05 0.00 0.07
2 3.2606 0.00 0.19 0.00 -0.15
3 5.0185 0.00 -0.11 0.00 -0.07
4 5.0212 0.00 -0.08 0.00 -0.00
5 5.1443 0.00 0.03 0.00 0.01
6 5.1469 0.00 -0.10 0.00 0.03
7 5.1606 0.00 -0.03 0.00 -0.06
8 5.8322 0.00 -0.05 0.00 0.05
9 5.8352 0.00 0.06 0.00 0.06
10 6.0371 0.00 0.00 0.00 -0.00
11 6.0373 0.00 0.06 0.00 0.02
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.
22QE261 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.843 45.843 45.843 ecceobj 0.115 0.115 0.115 incobj 7.426 7.426 7.426 qmin 39.715 39.712 39.719 qmax 52.316 52.327 52.303 amean 45.859 45.859 45.859 amin 45.487 45.486 45.485 amax 46.288 46.288 46.288 emean 0.118 0.118 0.118 emin 0.106 0.106 0.106 emax 0.131 0.131 0.131 imean 7.345 7.345 7.345 imin 6.888 6.889 6.888 imax 7.792 7.792 7.793 excite_mean 0.174 0.174 0.174 fracstop 1.000 1.000 1.000 cjmean 3.087 3.087 3.087 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 177.8 177.8 177.8 kozaiamp 180.0 180.0 180.0