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: 21EE44 # Created Wed Nov 27 02:11:06 2024 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 30.10d # First observation: 2021/03/05 # Last observation: 2021/04/04 Preliminary a, adot, b, bdot, g, gdot: 0.000000 0.024286 -0.000000 -0.002980 0.024623 0.000000 # WARNING Fitting with energy constraint # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution # Chi-squared of fit: 0.65 DOF: 13 RMS: 0.05 # Min/Max residuals: -0.09 0.09 # Exact a, adot, b, bdot, g, gdot: 1.503607E-05 2.288715E-02 -1.935590E-06 -2.965741E-03 2.440214E-02 -6.495003E-03 # Covariance matrix: 2.8010E-11 3.7850E-08 -5.7966E-13 -1.0253E-09 1.0822E-08 5.4197E-08 3.7850E-08 5.1603E-05 -7.9012E-10 -1.3976E-06 1.4751E-05 7.2908E-05 -5.7966E-13 -7.9012E-10 2.5438E-13 1.8471E-11 -2.2593E-10 -1.1629E-09 -1.0253E-09 -1.3976E-06 1.8471E-11 3.7978E-08 -3.9963E-07 -2.0653E-06 1.0822E-08 1.4751E-05 -2.2593E-10 -3.9963E-07 4.2177E-06 2.1531E-05 5.4197E-08 7.2908E-05 -1.1629E-09 -2.0653E-06 2.1531E-05 5.7327E-04 # lat0 lon0 xBary yBary zBary JD0 -1.056123 123.198854 -0.657198 -0.014013 -0.753772 2459278.639901 # Heliocentric elements and errors Epoch: 2459270.5000 = 2021/02/25 Mean Anomaly: 287.69807 +/- 110.008 Argument of Peri: 289.93685 +/- 71.161 Long of Asc Node: 296.11960 +/- 1.815 Inclination: 7.43150 +/- 1.740 Eccentricity: 0.25649031 +/- 0.9869 Semi-Major Axis: 42.30817216 +/- 21.6263 Time of Perihelion: 2479457.9860 +/- 26530.2 Perihelion: 31.45653599 +/- 44.7439 Aphelion: 53.15980832 +/- 49.8182 Period (y) 275.1976 +/- 211.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -23.39081898 +/- 1.8880 Ecliptic Y 34.55027865 +/- 2.8856 Ecliptic Z -0.75541537 +/- 0.0636 Ecliptic XDOT -0.00174004 +/- 0.0018 Ecliptic YDOT -0.00201447 +/- 0.0021 Ecliptic ZDOT -0.00031947 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.73035849 +/- 2.6130 Geocenter to KBO 40.98001420 +/- 3.4489 # Hcoef: 6.51
The following table shows the complete astrometric record for 21EE44. 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 (21EE44) followed by the observatory code and reference code for the source of the astrometry.
2021 03 05.13910 08 20 57.50 +18 24 50.8 22.4R 21EE44 G37 C~4qpu 2021 03 05.16301 08 20 57.41 +18 24 51.1 21EE44 G37 C~4qpu 2021 03 05.19772 08 20 57.29 +18 24 51.5 22.5R 21EE44 G37 C~4qpu 2021 03 05.23246 08 20 57.15 +18 24 51.8 22.3R 21EE44 G37 C~4qpu 2021 03 05.26706 08 20 57.03 +18 24 52.3 22.4R 21EE44 G37 C~4qpu 2021 03 05.30466 08 20 56.88 +18 24 52.7 22.3R 21EE44 G37 C~4qpu 2021 04 04.13451 08 19 44.00 +18 28 45.0 22.5R 21EE44 G37 C~4qpu 2021 04 04.17431 08 19 43.95 +18 28 45.1 22.6R 21EE44 G37 C~4qpu 2021 04 04.23868 08 19 43.88 +18 28 45.4 22.5R 21EE44 G37 C~4qpu
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 -0.04 0.00 0.00 2 0.0001 -1.32 -0.05 -0.00 0.02 3 0.0002 -3.07 0.09 -0.00 0.05 4 0.0003 -5.08 -0.02 -0.17 -0.09 5 0.0004 -6.85 0.08 -0.08 0.04 6 0.0005 -9.02 -0.04 -0.18 -0.02 7 0.0821 -1071.70 0.01 -11.23 -0.00 8 0.0822 -1072.42 -0.03 -11.29 -0.05 9 0.0824 -1073.46 0.02 -11.23 0.05
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.
21EE44 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0