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: 16TT94 # Created Sun Dec 22 02:10:53 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 28 observations of 28 # Arc: 5.85y # First observation: 2015/01/09 # Last observation: 2020/11/14 # Chi-squared of fit: 35.89 DOF: 50 RMS: 0.20 # Min/Max residuals: -0.62 0.70 # Exact a, adot, b, bdot, g, gdot: 1.702994E-05 2.767528E-02 1.435029E-06 7.597114E-04 2.622622E-02 3.217497E-03 # Covariance matrix: 2.2201E-13 -1.5493E-13 -6.3057E-15 1.4317E-15 -5.0355E-14 -7.5030E-13 -1.5493E-13 2.0476E-13 -5.8340E-15 -9.9961E-15 -3.8513E-14 1.1392E-12 -6.3057E-15 -5.8340E-15 1.3077E-13 -3.6739E-14 3.3568E-14 -2.1204E-14 1.4317E-15 -9.9961E-15 -3.6739E-14 2.2143E-14 1.7826E-14 -5.4587E-14 -5.0355E-14 -3.8513E-14 3.3568E-14 1.7826E-14 2.4991E-13 -1.2696E-13 -7.5030E-13 1.1392E-12 -2.1204E-14 -5.4587E-14 -1.2696E-13 7.0968E-12 # lat0 lon0 xBary yBary zBary JD0 -31.629415 18.874001 -0.981601 -0.006925 -0.011620 2457031.554088 # Heliocentric elements and errors Epoch: 2457032.5000 = 2015/01/10 Mean Anomaly: 49.61769 +/- 0.015 Argument of Peri: 207.98700 +/- 0.020 Long of Asc Node: 105.97387 +/- 0.001 Inclination: 31.69281 +/- 0.000 Eccentricity: 0.16470677 +/- 0.0001 Semi-Major Axis: 41.84710758 +/- 0.0048 Time of Perihelion: 2443404.5480 +/- 4.8 Perihelion: 34.95460560 +/- 0.0063 Aphelion: 48.73960955 +/- 0.0074 Period (y) 270.7113 +/- 0.05 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 30.41249208 +/- 0.0006 Ecliptic Y 11.43696782 +/- 0.0002 Ecliptic Z -19.99615331 +/- 0.0004 Ecliptic XDOT -0.00062855 +/- 0.0000 Ecliptic YDOT 0.00283446 +/- 0.0000 Ecliptic ZDOT -0.00010852 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 38.15184483 +/- 0.0005 Geocenter to KBO 38.12976266 +/- 0.0007 # Hcoef: 6.62
The following table shows the complete astrometric record for 16TT94. 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 (16TT94) followed by the observatory code and reference code for the source of the astrometry.
2015 01 09.05331 01 59 10.664 -21 48 48.57 22.1i 16TT94 W84 C~4ycG 2015 01 12.09800 01 59 09.608 -21 46 08.67 22.6r 16TT94 W84 C~4ycG 2015 01 12.09936 01 59 09.604 -21 46 08.59 22.5i 16TT94 W84 C~4ycG 2015 01 12.10075 01 59 09.614 -21 46 08.55 22.9g 16TT94 W84 C~4ycG 2015 01 12.10212 01 59 09.598 -21 46 08.47 22.5r 16TT94 W84 C~4ycG 2015 11 21.10941 02 07 45.432 -21 31 56.37 22.4z 16TT94 W84 C~4ycG 2015 12 01.20730 02 06 59.328 -21 30 08.05 22.4z 16TT94 W84 C~4ycG 2015 12 04.14549 02 06 47.104 -21 29 16.87 22.3z 16TT94 W84 C~4ycG 2015 12 15.17071 02 06 06.999 -21 24 46.49 22.1r 16TT94 W84 C~4ycG 2015 12 15.17207 02 06 06.992 -21 24 46.43 22.5g 16TT94 W84 C~4ycG 2016 01 20.07305 02 05 16.116 -20 58 05.34 22.1z 16TT94 W84 C~4ycG 2016 02 06.03724 02 05 39.873 -20 41 10.31 22.5i 16TT94 W84 C~4ycG 2016 09 23.24110 02 18 46.442 -20 26 53.64 22.3r 16TT94 W84 C~4ycG 2016 09 24.23004 02 18 42.313 -20 27 37.29 22.6g 16TT94 W84 C~4ycG 2016 10 06.27656 02 17 47.341 -20 35 46.11 23.3r 16TT94 807 C~2AEF 2016 10 07.22556 02 17 42.670 -20 36 20.80 23.3r 16TT94 807 C~2AEF 2016 11 09.28739 02 14 48.154 -20 48 52.55 22.5r 16TT94 W84 C~4ycG 2016 11 09.28877 02 14 48.151 -20 48 52.49 21.9i 16TT94 W84 C~4ycG 2016 11 18.24850 02 14 02.098 -20 49 16.96 22.6z 16TT94 W84 C~4ycG 2016 12 31.13279 02 11 28.517 -20 32 32.87 21.7r 16TT94 W84 C~4ycG 2017 10 11.30938 02 23 22.679 -19 54 44.42 22.1z 16TT94 W84 C~4ycG 2017 12 22.15512 02 17 45.716 -19 56 02.96 22.4r 16TT94 W84 C~4ycG 2017 12 22.15648 02 17 45.713 -19 56 02.86 23.2g 16TT94 W84 C~4ycG 2018 11 26.16944 02 25 19.553 -19 21 49.79 22.5i 16TT94 W84 C~4ycG 2018 11 28.19535 02 25 10.034 -19 21 33.44 22.6r 16TT94 W84 C~4ycG 2018 12 02.16898 02 24 52.010 -19 20 49.22 23.0g 16TT94 W84 C~4ycG 2020 11 14.219100 02 37 48.068 -17 53 16.92 22.4G 16TT94 G37 C~4O9U 2020 11 14.300060 02 37 47.691 -17 53 17.07 16TT94 G37 C~4O9U
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 -0.21
2 0.0083 0.00 0.06 0.00 -0.18
3 0.0083 0.00 0.00 0.00 -0.18
4 0.0083 0.00 0.16 0.00 -0.21
5 0.0083 0.00 -0.08 0.00 -0.21
6 0.8653 0.00 0.08 0.00 0.00
7 0.8930 0.00 -0.02 0.00 0.12
8 0.9010 0.00 -0.01 0.00 -0.05
9 0.9312 0.00 0.07 0.00 -0.08
10 0.9312 0.00 0.03 0.00 -0.06
11 1.0295 0.00 0.07 0.00 0.05
12 1.0759 0.00 -0.03 0.00 0.04
13 1.7062 0.00 -0.00 0.00 -0.01
14 1.7089 0.00 0.00 0.00 -0.03
15 1.7419 0.00 0.26 0.00 0.42
16 1.7445 0.00 -0.14 0.00 0.48
17 1.8350 0.00 -0.03 0.00 -0.00
18 1.8350 0.00 0.04 0.00 0.07
19 1.8595 0.00 -0.06 0.00 -0.02
20 1.9769 0.00 0.21 0.00 0.02
21 2.7550 0.00 -0.12 0.00 -0.02
22 2.9517 0.00 -0.10 0.00 0.16
23 2.9517 0.00 -0.08 0.00 0.22
24 3.8799 0.00 -0.23 0.00 0.19
25 3.8854 0.00 -0.29 0.00 0.18
26 3.8963 0.00 -0.28 0.00 0.24
27 5.8485 0.00 -0.07 0.00 -0.62
28 5.8487 0.00 0.70 0.00 -0.24
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.
16TT94 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.263 42.263 42.263 ecceobj 0.171 0.171 0.171 incobj 31.700 31.700 31.700 qmin 33.675 33.676 33.675 qmax 50.678 50.750 50.668 amean 42.016 42.021 42.018 amin 41.641 41.679 41.655 amax 42.424 42.424 42.419 emean 0.175 0.175 0.175 emin 0.155 0.155 0.155 emax 0.196 0.196 0.196 imean 29.918 29.915 29.916 imin 29.415 29.412 29.415 imax 30.409 30.406 30.419 excite_mean 0.529 0.529 0.529 fracstop 1.000 1.000 1.000 cjmean 2.733 2.733 2.733 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 182.8 183.2 183.1 kozaiamp 180.0 179.9 180.0