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: 22GY3 # Created Wed May 8 01:18:49 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 22 observations of 22 # Arc: 21.12y # First observation: 2001/02/20 # Last observation: 2022/04/05 # Chi-squared of fit: 35.58 DOF: 38 RMS: 0.22 # Min/Max residuals: -0.51 0.75 # Exact a, adot, b, bdot, g, gdot: 1.658463E-05 2.770391E-02 -8.195349E-08 -5.748391E-04 2.642448E-02 -1.454022E-03 # Covariance matrix: 7.3413E-13 -3.0267E-12 -8.1157E-16 6.4881E-14 2.4987E-13 -5.9390E-12 -3.0267E-12 8.8286E-09 1.0531E-12 -1.9423E-10 1.7620E-09 1.7482E-08 -8.1157E-16 1.0531E-12 6.6231E-13 -2.5978E-13 2.0494E-13 2.0901E-12 6.4881E-14 -1.9423E-10 -2.5978E-13 1.3066E-11 -3.8764E-11 -3.8502E-10 2.4987E-13 1.7620E-09 2.0494E-13 -3.8764E-11 3.6117E-10 3.4879E-09 -5.9390E-12 1.7482E-08 2.0901E-12 -3.8502E-10 3.4879E-09 3.4655E-08 # lat0 lon0 xBary yBary zBary JD0 -1.326151 164.583663 0.214832 -0.022530 -0.966381 2451960.773018 # Heliocentric elements and errors Epoch: 2451960.5000 = 2001/02/20 Mean Anomaly: 329.66937 +/- 0.019 Argument of Peri: 264.20711 +/- 0.001 Long of Asc Node: 296.82060 +/- 0.001 Inclination: 1.75549 +/- 0.000 Eccentricity: 0.09941243 +/- 0.0000 Semi-Major Axis: 42.31720630 +/- 0.0000 Time of Perihelion: 2460431.8549 +/- 5.4 Perihelion: 38.11035013 +/- 0.0014 Aphelion: 46.52406247 +/- 0.0014 Period (y) 275.2857 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -37.34298977 +/- 0.0000 Ecliptic Y 10.52589843 +/- 0.0000 Ecliptic Z -0.87583162 +/- 0.0000 Ecliptic XDOT -0.00062483 +/- 0.0000 Ecliptic YDOT -0.00280425 +/- 0.0000 Ecliptic ZDOT -0.00005587 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.80802980 +/- 0.0000 Geocenter to KBO 37.84375331 +/- 0.0000 # Hcoef: 7.38
The following table shows the complete astrometric record for 22GY3. 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 (22GY3) followed by the observatory code and reference code for the source of the astrometry.
2001 02 20.272275 11 01 09.36 +04 50 45.9 22.7r 22GY3 645 C~5fwS 2001 02 20.273104 11 01 09.39 +04 50 45.9 23.0i 22GY3 645 C~5fwS 2001 04 16.117057 10 57 05.22 +05 16 13.7 22GY3 645 C~5fwS 2001 04 16.117886 10 57 05.20 +05 16 13.6 22GY3 645 C~5fwS 2002 03 22.330104 11 04 36.23 +04 26 57.3 22.7R 22GY3 568 C~5fwS 2002 03 22.388663 11 04 35.95 +04 26 59.1 23.0R 22GY3 568 C~5fwS 2002 03 22.417914 11 04 35.80 +04 26 59.9 22.8R 22GY3 568 C~5fwS 2015 04 14.074836 12 19 46.07 -03 58 52.4 23.4V 22GY3 W84 C~5fwS 2019 05 05.005263 12 42 28.01 -06 27 57.5 23.4V 22GY3 W84 C~5fwS 2019 05 05.223632 12 42 27.13 -06 27 51.6 23.5V 22GY3 W84 C~5fwS 2021 04 16.10088 12 56 02.52 -07 54 59.6 22GY3 W93 C~5Y3z 2021 04 16.13587 12 56 02.31 -07 54 58.8 22GY3 W93 C~5Y3z 2021 04 16.17102 12 56 02.16 -07 54 57.5 22GY3 W93 C~5Y3z 2021 04 18.10088 12 55 52.87 -07 53 59.0 23.1R 22GY3 W93 C~5Y3z 2021 04 18.13546 12 55 52.73 -07 53 58.2 22.8R 22GY3 W93 C~5Y3z 2021 04 18.17011 12 55 52.59 -07 53 57.2 23.1R 22GY3 W93 C~5Y3z 2022 04 03.11592 13 03 16.00 -08 40 15.9 22GY3 W93 C~5Y3z 2022 04 03.15089 13 03 15.81 -08 40 14.8 22GY3 W93 C~5Y3z 2022 04 03.18623 13 03 15.67 -08 40 13.8 22GY3 W93 C~5Y3z 2022 04 05.12689 13 03 06.08 -08 39 15.2 22.5R 22GY3 W93 C~5Y3z 2022 04 05.15454 13 03 05.92 -08 39 14.2 22.6R 22GY3 W93 C~5Y3z 2022 04 05.18230 13 03 05.80 -08 39 13.8 22.7R 22GY3 W93 C~5Y3z
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 -0.02 0.00 -0.05
2 0.0000 0.00 0.49 0.00 -0.07
3 0.1502 0.00 0.00 0.00 0.16
4 0.1502 0.00 -0.26 0.00 0.04
5 1.0816 0.00 0.02 0.00 -0.07
6 1.0818 0.00 -0.03 0.00 0.02
7 1.0818 0.00 -0.20 0.00 -0.04
8 14.1432 0.00 -0.24 0.00 0.07
9 18.2005 0.00 -0.09 0.00 -0.05
10 18.2011 0.00 -0.02 0.00 0.04
11 20.1501 0.00 0.41 0.00 0.16
12 20.1502 0.00 -0.16 0.00 -0.10
13 20.1503 0.00 0.18 0.00 0.13
14 20.1556 0.00 -0.10 0.00 0.04
15 20.1557 0.00 0.32 0.00 -0.20
16 20.1558 0.00 0.75 0.00 -0.25
17 21.1139 0.00 -0.29 0.00 -0.13
18 21.1140 0.00 -0.51 0.00 -0.07
19 21.1141 0.00 0.05 0.00 -0.13
20 21.1194 0.00 0.03 0.00 0.19
21 21.1195 0.00 -0.29 0.00 0.36
22 21.1195 0.00 0.01 0.00 -0.07
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.
22GY3 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.155 42.155 42.155 ecceobj 0.097 0.097 0.097 incobj 1.759 1.759 1.759 qmin 37.183 37.182 37.184 qmax 48.083 48.079 48.086 amean 42.329 42.329 42.329 amin 41.913 41.912 41.914 amax 42.775 42.774 42.775 emean 0.099 0.099 0.099 emin 0.080 0.080 0.080 emax 0.124 0.124 0.124 imean 3.984 3.984 3.984 imin 2.681 2.682 2.681 imax 5.216 5.216 5.216 excite_mean 0.122 0.122 0.122 fracstop 1.000 1.000 1.000 cjmean 3.064 3.064 3.064 libcent 0 178.4 178.4 178.4 libamp 0 100.4 100.4 100.4 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 186.0 185.9 186.2 kozaiamp 179.9 180.0 180.0