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: 22GG7 # Created Wed Dec 25 02:11:16 2024 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 3.05y # First observation: 2021/04/16 # Last observation: 2024/05/04 Preliminary a, adot, b, bdot, g, gdot: 0.000010 0.021577 0.000001 0.000639 0.023230 0.000000 # Chi-squared of fit: 15.91 DOF: 28 RMS: 0.17 # Min/Max residuals: -0.59 0.32 # Exact a, adot, b, bdot, g, gdot: 1.416788E-05 2.161689E-02 5.840491E-07 6.410351E-04 2.310413E-02 6.611730E-04 # Covariance matrix: 2.3610E-13 -2.8901E-13 1.8669E-15 -6.7798E-15 -5.0088E-14 -3.6004E-12 -2.8901E-13 1.0089E-12 -9.4970E-15 3.4352E-14 -7.1213E-13 1.8015E-11 1.8669E-15 -9.4970E-15 1.8436E-13 -8.2908E-14 1.4285E-14 -1.9453E-13 -6.7798E-15 3.4352E-14 -8.2908E-14 7.1059E-14 -5.0802E-14 7.0211E-13 -5.0088E-14 -7.1213E-13 1.4285E-14 -5.0802E-14 7.1617E-12 -2.5207E-11 -3.6004E-12 1.8015E-11 -1.9453E-13 7.0211E-13 -2.5207E-11 3.6571E-10 # lat0 lon0 xBary yBary zBary JD0 -1.164669 -163.934354 -0.166695 -0.020332 -0.993755 2459320.603411 # Heliocentric elements and errors Epoch: 2459320.5000 = 2021/04/16 Mean Anomaly: 121.01197 +/- 1.162 Argument of Peri: 201.53303 +/- 1.121 Long of Asc Node: 230.12887 +/- 0.011 Inclination: 2.04421 +/- 0.001 Eccentricity: 0.03757215 +/- 0.0006 Semi-Major Axis: 43.38726110 +/- 0.0220 Time of Perihelion: 2424231.7719 +/- 335.9 Perihelion: 41.75710828 +/- 0.0335 Aphelion: 45.01741393 +/- 0.0346 Period (y) 285.7930 +/- 0.22 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -42.48483975 +/- 0.0048 Ecliptic Y -12.41659215 +/- 0.0014 Ecliptic Z -0.87972480 +/- 0.0001 Ecliptic XDOT 0.00063817 +/- 0.0000 Ecliptic YDOT -0.00247695 +/- 0.0000 Ecliptic ZDOT 0.00007416 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 44.27084012 +/- 0.0046 Geocenter to KBO 43.28229857 +/- 0.0050 # Hcoef: 7.20
The following table shows the complete astrometric record for 22GG7. 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 (22GG7) followed by the observatory code and reference code for the source of the astrometry.
2021 04 16.10261 12 57 23.74 -07 23 41.4 23.6R 22GG7 W93 C~5Zfm 2021 04 16.13771 12 57 23.58 -07 23 40.6 22.9R 22GG7 W93 C~5Zfm 2021 04 16.17102 12 57 23.40 -07 23 39.3 22GG7 W93 C~5Zfm 2021 04 18.09962 12 57 15.34 -07 22 47.5 22GG7 W93 C~5Zfm 2021 04 18.13546 12 57 15.17 -07 22 46.8 23.4R 22GG7 W93 C~5Zfm 2021 04 18.16831 12 57 15.01 -07 22 45.7 23.0R 22GG7 W93 C~5Zfm 2022 04 03.11592 13 03 00.21 -07 56 04.7 23.4R 22GG7 W93 C~5Zfm 2022 04 03.15089 13 03 00.04 -07 56 04.0 23.3R 22GG7 W93 C~5Zfm 2022 04 03.18623 13 02 59.89 -07 56 02.8 23.7R 22GG7 W93 C~5Zfm 2022 04 24.09950 13 01 30.75 -07 46 42.0 23.0R 22GG7 W93 C~5Zfm 2022 04 24.12067 13 01 30.68 -07 46 41.5 22.4R 22GG7 W93 C~5Zfm 2023 04 24.156350 13 06 10.740 -08 12 58.71 24.0G 22GG7 G37 C~6hd9 2023 04 24.218340 13 06 10.500 -08 12 57.35 22GG7 G37 C~6hd9 2023 04 24.278440 13 06 10.231 -08 12 55.81 22GG7 G37 C~6hd9 2024 05 04.258970 13 10 06.561 -08 34 21.18 23.6G 22GG7 G37 C~82ny 2024 05 04.288420 13 10 06.437 -08 34 20.40 22GG7 G37 C~82ny 2024 05 04.320410 13 10 06.303 -08 34 19.44 22GG7 G37 C~82ny
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 0.13 0.00 -0.03
2 0.0001 -2.50 0.06 -0.18 -0.22
3 0.0002 -5.48 -0.59 -0.01 -0.05
4 0.0055 -136.07 0.32 1.57 0.24
5 0.0056 -138.68 0.19 1.24 -0.10
6 0.0057 -141.30 -0.16 1.33 -0.01
7 0.9638 5365.90 0.13 126.22 0.23
8 0.9639 5363.29 -0.01 125.91 -0.08
9 0.9640 5360.77 -0.04 126.16 0.18
10 1.0212 3921.70 -0.10 137.12 -0.03
11 1.0213 3920.55 0.17 137.19 0.02
12 2.0207 8371.72 -0.24 268.67 0.07
13 2.0209 8367.90 0.14 268.57 -0.05
14 2.0210 8363.62 -0.07 268.47 -0.17
15 3.0504 12105.33 0.18 410.46 -0.04
16 3.0505 12103.33 0.03 410.48 -0.03
17 3.0506 12101.12 -0.15 410.62 0.08
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.
22GG7 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.349 43.421 43.277 ecceobj 0.041 0.042 0.041 incobj 2.053 2.053 2.052 qmin 40.635 40.643 40.606 qmax 46.707 46.816 46.572 amean 43.566 43.638 43.494 amin 43.228 43.293 43.154 amax 43.918 43.983 43.840 emean 0.046 0.048 0.045 emin 0.029 0.030 0.028 emax 0.064 0.065 0.062 imean 3.619 3.588 3.645 imin 2.790 2.775 2.794 imax 4.379 4.350 4.407 excite_mean 0.079 0.079 0.078 fracstop 1.000 1.000 1.000 cjmean 3.089 3.090 3.088 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 185.8 183.7 184.9 kozaiamp 180.0 179.9 180.0