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: 03HA57 # Created Wed Mar 26 01:08:30 2025 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 28 observations of 28 # Arc: 20.14y # First observation: 2003/04/26 # Last observation: 2023/06/15 # Chi-squared of fit: 174.38 DOF: 50 RMS: 0.44 # Min/Max residuals: -0.96 1.75 # Exact a, adot, b, bdot, g, gdot: 1.602907E-05 3.319234E-02 5.946569E-06 1.736036E-02 3.150035E-02 -8.944899E-04 # Covariance matrix: 2.6082E-13 -5.1360E-14 3.0700E-14 -1.8863E-14 -1.3745E-13 -4.5548E-14 -5.1360E-14 2.2756E-14 -1.7714E-14 1.0999E-14 3.1361E-14 2.8381E-14 3.0700E-14 -1.7714E-14 1.7836E-13 -1.8840E-14 -1.1744E-14 -2.4456E-14 -1.8863E-14 1.0999E-14 -1.8840E-14 6.6280E-15 6.4117E-15 1.5283E-14 -1.3745E-13 3.1361E-14 -1.1744E-14 6.4117E-15 3.8706E-13 2.7780E-15 -4.5548E-14 2.8381E-14 -2.4456E-14 1.5283E-14 2.7780E-15 4.0957E-14 # lat0 lon0 xBary yBary zBary JD0 -1.061058 -162.823577 -0.323478 -0.017662 -0.953494 2452755.832703 # Heliocentric elements and errors Epoch: 2452756.5000 = 2003/04/27 Mean Anomaly: 356.60513 +/- 0.015 Argument of Peri: 2.68344 +/- 0.008 Long of Asc Node: 199.70478 +/- 0.000 Inclination: 27.61607 +/- 0.000 Eccentricity: 0.17429502 +/- 0.0000 Semi-Major Axis: 39.58281750 +/- 0.0013 Time of Perihelion: 2453614.2870 +/- 5.8 Perihelion: 32.68372973 +/- 0.0015 Aphelion: 46.48190527 +/- 0.0019 Period (y) 249.0395 +/- 0.01 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.14219355 +/- 0.0005 Ecliptic Y -9.96026853 +/- 0.0001 Ecliptic Z -0.58765421 +/- 0.0000 Ecliptic XDOT 0.00089336 +/- 0.0000 Ecliptic YDOT -0.00274646 +/- 0.0000 Ecliptic ZDOT 0.00151024 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 32.70151373 +/- 0.0004 Geocenter to KBO 31.74572983 +/- 0.0005 # Hcoef: 8.09
The following table shows the complete astrometric record for 03HA57. 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 (03HA57) followed by the observatory code and reference code for the source of the astrometry.
2003 04 26.33196 13 01 41.59 -07 43 34.3 22.8R 03HA57 568 Cq9883 2003 04 26.37420 13 01 41.36 -07 43 32.4 22.6R 03HA57 568 Cq9883 2003 04 26.41661 13 01 41.13 -07 43 30.5 22.4R 03HA57 568 Cq9883 2003 07 28.98844 12 59 42.71 -07 12 41.8 03HA57 809 Cq9883 2003 07 29.02059 12 59 42.82 -07 12 41.9 03HA57 809 Cq9883 2004 03 20.58286 13 13 35.13 -07 58 03.3 03HA57 568 Cq9883 2004 03 29.53252 13 12 47.79 -07 51 42.8 03HA57 568 Cq9883 2004 03 29.53393 13 12 47.80 -07 51 42.5 23.1R 03HA57 568 Cq9883 2004 03 29.55557 13 12 47.69 -07 51 41.6 22.7R 03HA57 568 Cq9883 2004 03 29.55699 13 12 47.70 -07 51 41.4 23.2R 03HA57 568 Cq9883 2004 03 29.58401 13 12 47.52 -07 51 40.4 22.8R 03HA57 568 Cq9883 2004 03 29.58543 13 12 47.53 -07 51 40.2 22.8R 03HA57 568 Cq9883 2004 04 16.30605 13 11 09.99 -07 38 40.2 03HA57 675 Cq9883 2005 07 09.19435 13 15 40.03 -06 48 36.2 03HA57 675 Cq9883 2005 07 11.19723 13 15 42.23 -06 48 33.1 03HA57 675 Cq9883 2013 05 14.24302 14 25 54.23 -05 08 59.5 23.1R 03HA57 G37 C~0sni 2013 05 14.30905 14 25 53.87 -05 08 57.2 03HA57 G37 C~0sni 2019 05 06.429320 15 16 56.67 -03 26 55.1 23.7G 03HA57 705 C~39na 2019 05 07.411900 15 16 51.17 -03 26 21.8 23.6G 03HA57 705 C~39na 2021 07 09.10438 15 28 09.899 -02 33 06.17 23.3r 03HA57 269 C~8iQG 2021 07 09.10852 15 28 09.885 -02 33 06.21 23.9g 03HA57 269 C~8iQG 2021 07 09.11154 15 28 09.877 -02 33 06.23 22.5z 03HA57 269 C~8iQG 2021 07 09.11436 15 28 09.866 -02 33 06.23 22.8z 03HA57 269 C~8iQG 2021 07 09.11722 15 28 09.858 -02 33 06.22 22.9z 03HA57 269 C~8iQG 2021 07 09.12012 15 28 09.854 -02 33 06.26 23.9g 03HA57 269 C~8iQG 2021 07 09.12250 15 28 09.846 -02 33 06.28 23.3r 03HA57 269 C~8iQG 2023 06 15.211300 15 45 51.871 -01 56 07.50 23.7G 03HA57 G37 C~6r2E 2023 06 15.255060 15 45 51.636 -01 56 06.87 03HA57 G37 C~6r2E
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 0.34 0.00 0.48
2 0.0001 0.00 0.22 0.00 0.56
3 0.0002 0.00 0.11 0.00 0.63
4 0.2564 0.00 0.30 0.00 1.52
5 0.2565 0.00 0.27 0.00 1.75
6 0.9014 0.00 -0.40 0.00 -0.15
7 0.9259 0.00 -0.55 0.00 -0.66
8 0.9259 0.00 -0.28 0.00 -0.42
9 0.9260 0.00 -0.14 0.00 -0.46
10 0.9260 0.00 0.13 0.00 -0.32
11 0.9261 0.00 -0.34 0.00 -0.50
12 0.9261 0.00 -0.07 0.00 -0.36
13 0.9746 0.00 0.22 0.00 -0.96
14 2.2036 0.00 -0.04 0.00 -0.59
15 2.2091 0.00 -0.00 0.00 -0.39
16 10.0504 0.00 0.08 0.00 -0.30
17 10.0506 0.00 0.12 0.00 -0.13
18 16.0276 0.00 -0.08 0.00 -0.20
19 16.0303 0.00 0.44 0.00 0.19
20 18.2033 0.00 -0.01 0.00 0.03
21 18.2034 0.00 -0.03 0.00 0.01
22 18.2034 0.00 -0.02 0.00 0.01
23 18.2034 0.00 -0.06 0.00 0.02
24 18.2034 0.00 -0.05 0.00 0.05
25 18.2034 0.00 0.02 0.00 0.02
26 18.2034 0.00 0.00 0.00 0.02
27 20.1366 0.00 -0.02 0.00 0.07
28 20.1367 0.00 -0.20 0.00 0.27
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.
03HA57 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.221 39.221 39.221 ecceobj 0.167 0.167 0.167 incobj 27.707 27.707 27.707 qmin 32.303 32.304 32.303 qmax 46.947 46.946 46.947 amean 39.455 39.455 39.455 amin 39.107 39.107 39.107 amax 39.838 39.839 39.838 emean 0.142 0.142 0.142 emin 0.103 0.103 0.103 emax 0.181 0.181 0.181 imean 28.491 28.490 28.491 imin 27.678 27.678 27.678 imax 29.228 29.228 29.229 excite_mean 0.498 0.498 0.498 fracstop 1.000 1.000 1.000 cjmean 2.755 2.755 2.755 libcent 0 179.7 179.7 179.7 libamp 0 67.0 66.9 67.0 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 186.0 186.0 186.0 kozaiamp 180.0 180.0 180.0