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: 16TS97 # Created Tue Jan 21 02:11:07 2025 # Orbit generated from Bernstein formalism # Fitting 9 observations of 9 # Arc: 1.19y # First observation: 2016/10/06 # Last observation: 2017/12/14 Preliminary a, adot, b, bdot, g, gdot: -0.000013 0.008417 -0.000002 -0.001849 0.014067 0.000000 # Chi-squared of fit: 5.56 DOF: 12 RMS: 0.14 # Min/Max residuals: -0.27 0.18 # Exact a, adot, b, bdot, g, gdot: 9.421821E-06 8.476755E-03 -2.729783E-06 -1.861450E-03 1.416028E-02 -3.191019E-04 # Covariance matrix: 5.0382E-13 -1.2146E-12 8.7449E-15 -2.0410E-13 1.2638E-12 3.7336E-10 -1.2146E-12 1.5109E-11 -3.5867E-13 1.7506E-12 -9.2276E-12 -4.2080E-09 8.7449E-15 -3.5867E-13 2.5704E-13 -2.8806E-13 1.7927E-13 9.7942E-11 -2.0410E-13 1.7506E-12 -2.8806E-13 1.0132E-12 -1.4159E-12 -5.5430E-10 1.2638E-12 -9.2276E-12 1.7927E-13 -1.4159E-12 8.0932E-12 3.0105E-09 3.7336E-10 -4.2080E-09 9.7942E-11 -5.5430E-10 3.0105E-09 1.2770E-06 # lat0 lon0 xBary yBary zBary JD0 -30.326325 32.623810 0.332303 -0.478170 -0.817826 2457667.717479 # Heliocentric elements and errors Epoch: 2457660.5000 = 2016/09/29 Mean Anomaly: 189.65902 +/- 14.664 Argument of Peri: 64.04056 +/- 15.300 Long of Asc Node: 146.46238 +/- 0.088 Inclination: 32.26397 +/- 0.018 Eccentricity: 0.32712771 +/- 0.0081 Semi-Major Axis: 53.93518178 +/- 0.3207 Time of Perihelion: 2526118.3537 +/- 5861.7 Perihelion: 36.29148926 +/- 0.4879 Aphelion: 71.57887431 +/- 0.6104 Period (y) 396.1106 +/- 3.53 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 52.31245773 +/- 0.0103 Ecliptic Y 33.09103324 +/- 0.0066 Ecliptic Z -35.65798791 +/- 0.0072 Ecliptic XDOT -0.00107958 +/- 0.0002 Ecliptic YDOT 0.00124683 +/- 0.0001 Ecliptic ZDOT -0.00027954 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 71.43599804 +/- 0.0089 Geocenter to KBO 70.62005745 +/- 0.0142 # Hcoef: 6.10
The following table shows the complete astrometric record for 16TS97. 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 (16TS97) followed by the observatory code and reference code for the source of the astrometry.
2016 10 06.21669 02 43 15.078 -16 09 00.12 24.7r 16TS97 807 C~2b80 2016 10 06.34782 02 43 14.734 -16 09 03.63 24.5r 16TS97 807 C~2b80 2016 10 07.29948 02 43 12.290 -16 09 25.68 24.5r 16TS97 807 C~2b80 2016 11 02.14200 02 41 58.303 -16 17 26.70 16TS97 304 C~2b80 2016 11 03.08489 02 41 55.445 -16 17 39.07 16TS97 304 C~2b80 2016 12 30.07959 02 39 31.650 -16 16 18.07 16TS97 304 C~2b80 2016 12 30.15791 02 39 31.535 -16 16 16.80 16TS97 304 C~2b80 2017 12 13.08062 02 42 07.032 -16 15 35.91 24.6r 16TS97 304 C~2b80 2017 12 14.06707 02 42 04.793 -16 15 28.35 16TS97 304 C~2b80
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 0.01 0.00 0.13
2 0.0004 -5.87 -0.15 -1.56 -0.27
3 0.0030 -46.56 0.13 -9.95 -0.21
4 0.0737 -1212.97 0.05 -90.04 -0.00
5 0.0763 -1255.86 -0.14 -87.34 0.07
6 0.2323 -3170.69 0.00 704.87 0.18
7 0.2326 -3171.81 0.12 706.64 0.18
8 1.1851 -1056.62 -0.17 -29.81 -0.10
9 1.1878 -1084.23 0.15 -11.52 0.03
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.
16TS97 quality flag:1 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 54.450 59.937 54.375 ecceobj 0.315 0.427 0.314 incobj 32.200 32.146 32.205 qmin 35.870 31.787 35.866 qmax 73.262 88.746 73.097 amean 54.160 59.545 54.079 amin 53.621 58.786 53.548 amax 54.840 60.567 54.760 emean 0.318 0.440 0.315 emin 0.299 0.412 0.294 emax 0.336 0.466 0.335 imean 31.196 30.541 31.259 imin 30.759 29.516 30.784 imax 31.786 31.735 31.919 excite_mean 0.608 0.672 0.607 fracstop 1.000 1.000 1.000 cjmean 2.732 2.682 2.732 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 164.6 156.9 166.4 kozaiamp 179.9 179.9 180.0