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: 16EB364 # Created Wed Nov 27 02:10:35 2024 # Orbit generated from Bernstein formalism # Fitting 22 observations of 22 # Arc: 34.96d # First observation: 2016/03/07 # Last observation: 2016/04/11 Preliminary a, adot, b, bdot, g, gdot: 0.000002 0.035378 -0.000004 0.001430 0.029117 0.000000 # Chi-squared of fit: 15.37 DOF: 38 RMS: 0.15 # Min/Max residuals: -0.51 0.25 # Exact a, adot, b, bdot, g, gdot: 1.772589E-05 3.112458E-02 1.353494E-06 1.754367E-03 2.815661E-02 -1.145811E-02 # Covariance matrix: 3.5741E-13 4.2622E-11 -8.0286E-14 -2.8906E-12 1.2264E-11 1.8953E-09 4.2622E-11 1.5695E-07 -1.6612E-10 -1.2647E-08 3.2541E-08 2.1153E-06 -8.0286E-14 -1.6612E-10 3.6041E-13 1.1035E-11 -3.5038E-11 -2.4940E-09 -2.8906E-12 -1.2647E-08 1.1035E-11 1.0663E-09 -2.6101E-09 -1.6490E-07 1.2264E-11 3.2541E-08 -3.5038E-11 -2.6101E-09 6.8019E-09 4.6170E-07 1.8953E-09 2.1153E-06 -2.4940E-09 -1.6490E-07 4.6170E-07 3.8524E-05 # lat0 lon0 xBary yBary zBary JD0 10.836296 -149.856354 0.675675 0.135999 -0.709725 2457455.091949 # Heliocentric elements and errors Epoch: 2457450.5000 = 2016/03/03 Mean Anomaly: 328.84221 +/- 10.022 Argument of Peri: 147.91404 +/- 9.964 Long of Asc Node: 136.68290 +/- 0.374 Inclination: 11.12871 +/- 0.023 Eccentricity: 0.44590242 +/- 0.2063 Semi-Major Axis: 50.37098430 +/- 10.6319 Time of Perihelion: 2468751.9249 +/- 642.3 Perihelion: 27.91044038 +/- 11.9456 Aphelion: 72.83152822 +/- 18.5557 Period (y) 357.5023 +/- 113.19 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -31.13283157 +/- 0.0884 Ecliptic Y -17.29783919 +/- 0.0513 Ecliptic Z 6.67713231 +/- 0.0196 Ecliptic XDOT 0.00249369 +/- 0.0005 Ecliptic YDOT -0.00205854 +/- 0.0003 Ecliptic ZDOT -0.00004191 +/- 0.0001 # Distances at JD0 (AU) Heliocenter to KBO 36.23606681 +/- 0.0798 Geocenter to KBO 35.51563870 +/- 0.1040 # Hcoef: 9.06
The following table shows the complete astrometric record for 16EB364. 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 (16EB364) followed by the observatory code and reference code for the source of the astrometry.
2016 03 07.59116 14 07 19.96 -01 21 28.9 25.7g 16EB364 T09 C~89T4 2016 03 07.60915 14 07 19.91 -01 21 28.3 25.5g 16EB364 T09 C~89T4 2016 03 07.62483 14 07 19.85 -01 21 27.8 25.1g 16EB364 T09 C~89T4 2016 03 07.63983 14 07 19.82 -01 21 27.3 25.3g 16EB364 T09 C~89T4 2016 03 16.45951 14 06 49.19 -01 16 36.6 24.5z 16EB364 T09 C~89T4 2016 03 16.48552 14 06 49.09 -01 16 36.0 24.0z 16EB364 T09 C~89T4 2016 03 16.48822 14 06 49.06 -01 16 35.8 23.8z 16EB364 T09 C~89T4 2016 03 16.51315 14 06 48.98 -01 16 34.9 24.8z 16EB364 T09 C~89T4 2016 03 16.53802 14 06 48.85 -01 16 34.1 24.4z 16EB364 T09 C~89T4 2016 03 16.56263 14 06 48.76 -01 16 33.8 24.1z 16EB364 T09 C~89T4 2016 03 16.58716 14 06 48.68 -01 16 32.3 24.5z 16EB364 T09 C~89T4 2016 03 16.59256 14 06 48.64 -01 16 32.1 25.1z 16EB364 T09 C~89T4 2016 04 08.53253 14 05 06.51 -01 03 42.0 25.0r 16EB364 T09 C~89T4 2016 04 08.54322 14 05 06.45 -01 03 41.7 24.6r 16EB364 T09 C~89T4 2016 04 08.55612 14 05 06.38 -01 03 41.2 24.9r 16EB364 T09 C~89T4 2016 04 08.56882 14 05 06.32 -01 03 40.8 24.7r 16EB364 T09 C~89T4 2016 04 11.43072 14 04 52.05 -01 02 08.4 24.0i 16EB364 T09 C~89T4 2016 04 11.45409 14 04 51.93 -01 02 07.7 24.2i 16EB364 T09 C~89T4 2016 04 11.47868 14 04 51.81 -01 02 06.7 24.2i 16EB364 T09 C~89T4 2016 04 11.50036 14 04 51.69 -01 02 06.2 24.0i 16EB364 T09 C~89T4 2016 04 11.52732 14 04 51.57 -01 02 05.4 24.1i 16EB364 T09 C~89T4 2016 04 11.54904 14 04 51.44 -01 02 04.5 24.1i 16EB364 T09 C~89T4
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 -0.05 0.00 -0.08
2 0.0000 -0.91 0.05 0.31 -0.02
3 0.0001 -1.93 -0.08 0.47 -0.07
4 0.0001 -2.52 0.17 0.78 0.04
5 0.0243 -533.83 0.14 115.67 0.25
6 0.0244 -535.45 0.25 115.72 -0.00
7 0.0244 -535.94 -0.06 115.75 0.00
8 0.0244 -537.37 0.16 116.18 0.15
9 0.0245 -539.48 -0.29 116.26 -0.05
10 0.0246 -540.85 -0.03 116.08 -0.51
11 0.0246 -542.49 -0.04 117.07 0.20
12 0.0246 -543.13 -0.31 117.06 0.12
13 0.0875 -2246.33 0.20 312.92 0.02
14 0.0875 -2247.27 0.13 312.89 -0.06
15 0.0875 -2248.43 0.03 313.00 -0.01
16 0.0876 -2249.42 0.09 313.06 -0.00
17 0.0954 -2482.19 -0.08 326.13 -0.03
18 0.0954 -2484.12 -0.07 326.17 -0.07
19 0.0955 -2486.15 -0.06 326.49 0.16
20 0.0956 -2488.02 -0.12 326.34 -0.07
21 0.0956 -2489.98 0.15 326.47 -0.04
22 0.0957 -2492.12 -0.19 326.65 0.06
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.