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: 22QF261
# Created Wed Jul 17 01:11:58 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 12 observations of 12
# Arc: 11.81y
# First observation: 2011/09/01
# Last observation: 2023/06/24
# Chi-squared of fit: 3.10 DOF: 18 RMS: 0.09
# Min/Max residuals: -0.23 0.21
# Exact a, adot, b, bdot, g, gdot:
1.099528E-05 1.118314E-02 1.602606E-06 1.606235E-03 1.610908E-02 -3.843915E-03
# Covariance matrix:
1.4608E-12 -2.8339E-13 2.3126E-14 -2.3480E-14 -2.2766E-13 -1.1532E-12
-2.8339E-13 1.8243E-13 -2.4486E-14 2.4794E-14 2.8579E-13 1.2093E-12
2.3126E-14 -2.4486E-14 1.2988E-12 -1.2317E-13 -4.3573E-14 -1.7435E-13
-2.3480E-14 2.4794E-14 -1.2317E-13 1.5719E-14 4.3743E-14 1.7646E-13
-2.2766E-13 2.8579E-13 -4.3573E-14 4.3743E-14 7.5878E-13 2.0865E-12
-1.1532E-12 1.2093E-12 -1.7435E-13 1.7646E-13 2.0865E-12 8.5969E-12
# lat0 lon0 xBary yBary zBary JD0
3.615365 -36.027928 -0.248470 0.061439 -0.973100 2455805.823508
# Heliocentric elements and errors
Epoch: 2455806.5000 = 2011/09/02
Mean Anomaly: 267.62216 +/- 0.063
Argument of Peri: 151.92467 +/- 0.033
Long of Asc Node: 300.71494 +/- 0.002
Inclination: 8.87130 +/- 0.000
Eccentricity: 0.34010732 +/- 0.0002
Semi-Major Axis: 56.30916585 +/- 0.0138
Time of Perihelion: 2495409.8915 +/- 50.0
Perihelion: 37.15800649 +/- 0.0126
Aphelion: 75.46032521 +/- 0.0204
Period (y) 422.5488 +/- 0.15
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 51.04224234 +/- 0.0027
Ecliptic Y -36.81090248 +/- 0.0020
Ecliptic Z 3.91458337 +/- 0.0002
Ecliptic XDOT 0.00057354 +/- 0.0000
Ecliptic YDOT 0.00193612 +/- 0.0000
Ecliptic ZDOT 0.00023131 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 63.05320300 +/- 0.0025
Geocenter to KBO 62.07704984 +/- 0.0034
# Hcoef: 5.23
The following table shows the complete astrometric record for 22QF261. 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 (22QF261) followed by the observatory code and reference code for the source of the astrometry.
2011 09 01.322742 21 40 17.15 -10 06 58.1 22QF261 T14 C~79O0 2019 08 22.176717 21 59 59.18 -07 35 24.3 22.5i 22QF261 W84 C~79O0 2020 11 19.021238 21 59 32.70 -07 34 53.3 22.9i 22QF261 W84 C~79O0 2021 07 18.203233 22 06 43.55 -06 47 35.3 22.6i 22QF261 W84 C~79O0 2022 08 30.10749 22 07 01.960 -06 38 16.28 23.2r 22QF261 807 C~6wt2 2022 08 31.11615 22 06 58.651 -06 38 34.07 23.2r 22QF261 807 C~6wt2 2022 10 15.02927 22 04 56.651 -06 50 59.37 23.0r 22QF261 304 C~6wt2 2022 10 16.03651 22 04 54.829 -06 51 12.56 22.9r 22QF261 304 C~6wt2 2022 10 21.01361 22 04 46.600 -06 52 14.21 22.9r 22QF261 304 C~6wt2 2023 04 22.40157 22 12 12.182 -06 12 46.16 23.1r 22QF261 304 C~6wt2 2023 06 23.29157 22 12 38.174 -06 04 21.48 23.0r 22QF261 304 C~6wt2 2023 06 24.40768 22 12 36.551 -06 04 24.57 23.0r 22QF261 304 C~6wt2
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 -0.00 0.00 -0.01
2 7.9722 0.00 -0.07 0.00 0.08
3 9.2175 0.00 0.16 0.00 -0.23
4 9.8778 0.00 -0.09 0.00 0.12
5 10.9946 0.00 0.06 0.00 -0.03
6 10.9974 0.00 -0.06 0.00 0.21
7 11.1203 0.00 -0.06 0.00 -0.05
8 11.1231 0.00 -0.00 0.00 -0.03
9 11.1367 0.00 -0.04 0.00 -0.01
10 11.6388 0.00 -0.09 0.00 -0.02
11 11.8083 0.00 0.05 0.00 -0.04
12 11.8113 0.00 0.05 0.00 -0.03
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.
22QF261 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 56.304 56.303 56.304 ecceobj 0.341 0.341 0.341 incobj 8.876 8.876 8.876 qmin 36.110 36.161 36.059 qmax 77.152 77.219 77.385 amean 56.213 56.203 56.182 amin 55.519 55.418 55.414 amax 57.039 57.056 57.017 emean 0.341 0.340 0.343 emin 0.326 0.327 0.328 emax 0.355 0.355 0.358 imean 10.104 10.237 10.233 imin 9.402 9.624 9.641 imax 10.725 10.795 10.812 excite_mean 0.384 0.384 0.386 fracstop 1.000 1.000 1.000 cjmean 3.064 3.064 3.061 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 179.0 180.1 178.9 kozaiamp 180.0 179.9 179.9