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: 94TG # Created Wed Nov 27 02:07:52 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 8 observations of 8 # Arc: 3.02d # First observation: 1994/10/03 # Last observation: 1994/10/06 # Chi-squared of fit: 14.47 DOF: 10 RMS: 0.24 # Min/Max residuals: -0.35 0.46 # Exact a, adot, b, bdot, g, gdot: 1.353520E-05 2.470822E-02 1.700056E-06 2.738520E-03 2.446468E-02 -1.891508E-03 # Covariance matrix: 3.1494E-11 4.7783E-08 -7.6894E-14 -4.6520E-11 7.6282E-09 0.0000E+00 4.7783E-08 7.3100E-05 -1.1755E-10 -7.1120E-08 1.1662E-05 0.0000E+00 -7.6894E-14 -1.1755E-10 2.2195E-13 -2.3931E-11 -1.8756E-11 0.0000E+00 -4.6520E-11 -7.1120E-08 -2.3931E-11 1.5236E-08 -1.1348E-08 0.0000E+00 7.6282E-09 1.1662E-05 -1.8756E-11 -1.1348E-08 1.8608E-06 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 1.8910E-04 # lat0 lon0 xBary yBary zBary JD0 -0.836090 8.575588 -0.032843 -0.014613 -1.000869 2449628.920308 # Heliocentric elements and errors Epoch: 2449628.5000 = 1994/10/03 Mean Anomaly: 327.73800 +/- 356.630 Argument of Peri: 33.48106 +/- 62.952 Long of Asc Node: 15.92453 +/- 2.542 Inclination: 6.38442 +/- 2.372 Eccentricity: 0.12264483 +/- 0.5606 Semi-Major Axis: 46.45976813 +/- 22.6882 Time of Perihelion: 2459994.2983 +/- 138129.2 Perihelion: 40.76171780 +/- 32.7815 Aphelion: 52.15781846 +/- 36.4301 Period (y) 316.6823 +/- 231.97 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 41.39916672 +/- 2.2818 Ecliptic Y 6.26951105 +/- 0.3439 Ecliptic Z -0.59636671 +/- 0.0337 Ecliptic XDOT -0.00061086 +/- 0.0015 Ecliptic YDOT 0.00270091 +/- 0.0008 Ecliptic ZDOT 0.00030937 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 41.87549937 +/- 2.2564 Geocenter to KBO 40.87535163 +/- 2.3078 # Hcoef: 7.21
The following table shows the complete astrometric record for 94TG. 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 (94TG) followed by the observatory code and reference code for the source of the astrometry.
1994 10 03.4196 00 32 49.68 +02 37 55.0 23. R 94TG 568 A24037 1994 10 03.4445 00 32 49.52 +02 37 54.2 94TG 568 A24037 1994 10 03.4744 00 32 49.40 +02 37 53.0 94TG 568 A24037 1994 10 03.5453 00 32 49.05 +02 37 51.5 94TG 568 A24037 1994 10 03.5565 00 32 49.01 +02 37 50.8 94TG 568 A24037 1994 10 03.5785 00 32 48.94 +02 37 50.6 94TG 568 A24037 1994 10 06.4328 00 32 36.10 +02 36 33.1 94TG 568 A24037 1994 10 06.4391 00 32 36.04 +02 36 32.9 94TG 568 A24037
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 0.46 0.00 0.21
2 0.0001 0.00 -0.23 0.00 0.09
3 0.0002 0.00 0.03 0.00 -0.30
4 0.0003 0.00 -0.35 0.00 0.13
5 0.0004 0.00 -0.18 0.00 -0.26
6 0.0004 0.00 0.27 0.00 0.13
7 0.0082 0.00 0.24 0.00 0.02
8 0.0083 0.00 -0.23 0.00 -0.01
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.
94TG quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 46.999 46.999 46.999 ecceobj 0.133 0.133 0.133 incobj 6.361 6.361 6.361 qmin 39.931 39.920 39.890 qmax 53.591 53.584 53.665 amean 46.600 46.598 46.603 amin 46.179 46.199 46.197 amax 47.049 47.049 47.048 emean 0.128 0.127 0.128 emin 0.115 0.114 0.115 emax 0.140 0.140 0.141 imean 6.231 6.231 6.229 imin 5.814 5.808 5.812 imax 6.644 6.643 6.649 excite_mean 0.168 0.167 0.168 fracstop 1.000 1.000 1.000 cjmean 3.099 3.099 3.099 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 183.2 182.9 182.8 kozaiamp 180.0 180.0 180.0