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: 16PN219
# Created Thu Apr 25 01:18:00 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 19 observations of 19
# Arc: 9.99y
# First observation: 2013/09/11
# Last observation: 2023/09/06
# Chi-squared of fit: 5.50 DOF: 32 RMS: 0.10
# Min/Max residuals: -0.21 0.26
# Exact a, adot, b, bdot, g, gdot:
1.393663E-05 1.981093E-02 2.227132E-06 2.918398E-03 2.249938E-02 -2.586671E-03
# Covariance matrix:
1.1717E-12 -4.3541E-13 1.2189E-13 -5.5047E-14 -3.4583E-13 -1.5622E-12
-4.3541E-13 1.9439E-13 -5.6553E-14 2.6818E-14 2.7339E-13 7.6263E-13
1.2189E-13 -5.6553E-14 3.7206E-13 -7.1572E-14 -6.3306E-14 -2.3806E-13
-5.5047E-14 2.6818E-14 -7.1572E-14 1.8334E-14 4.2503E-14 1.1371E-13
-3.4583E-13 2.7339E-13 -6.3306E-14 4.2503E-14 1.4087E-12 1.2233E-12
-1.5622E-12 7.6263E-13 -2.3806E-13 1.1371E-13 1.2233E-12 3.2345E-12
# lat0 lon0 xBary yBary zBary JD0
9.293054 -28.567958 -0.292135 0.155799 -0.951582 2456546.685928
# Heliocentric elements and errors
Epoch: 2456546.5000 = 2013/09/11
Mean Anomaly: 245.50715 +/- 0.074
Argument of Peri: 176.34992 +/- 0.054
Long of Asc Node: 284.58809 +/- 0.001
Inclination: 12.30619 +/- 0.000
Eccentricity: 0.14556239 +/- 0.0001
Semi-Major Axis: 42.18022594 +/- 0.0076
Time of Perihelion: 2488369.2464 +/- 27.6
Perihelion: 36.04037147 +/- 0.0072
Aphelion: 48.32008041 +/- 0.0092
Period (y) 273.9502 +/- 0.07
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 39.50865029 +/- 0.0020
Ecliptic Y -21.17651681 +/- 0.0011
Ecliptic Z 7.17735771 +/- 0.0004
Ecliptic XDOT 0.00082345 +/- 0.0000
Ecliptic YDOT 0.00229200 +/- 0.0000
Ecliptic ZDOT 0.00029978 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 45.39713499 +/- 0.0018
Geocenter to KBO 44.44578578 +/- 0.0023
# Hcoef: 6.35
The following table shows the complete astrometric record for 16PN219. 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 (16PN219) followed by the observatory code and reference code for the source of the astrometry.
2013 09 11.18515 22 00 37.973 -02 16 02.37 23.9g 16PN219 W84 C~52ZF 2016 08 15.26497 22 14 38.189 -00 25 18.58 21.8z 16PN219 W84 C~52ZF 2016 08 30.20534 22 13 34.322 -00 30 47.42 23.9g 16PN219 W84 C~52ZF 2016 09 26.08813 22 11 47.431 -00 42 08.72 22.4i 16PN219 W84 C~52ZF 2016 09 26.08950 22 11 47.428 -00 42 08.73 22.7r 16PN219 W84 C~52ZF 2016 09 26.09087 22 11 47.426 -00 42 08.84 23.4g 16PN219 W84 C~52ZF 2016 09 29.07905 22 11 37.149 -00 43 25.46 22.9z 16PN219 W84 C~52ZF 2017 09 27.09571 22 15 49.071 -00 08 42.69 22.2z 16PN219 W84 C~52ZF 2017 09 27.09709 22 15 49.063 -00 08 42.79 23.1r 16PN219 W84 C~52ZF 2017 09 27.09846 22 15 49.056 -00 08 42.83 22.4i 16PN219 W84 C~52ZF 2017 10 10.10988 22 15 07.597 -00 14 15.23 23.9g 16PN219 W84 C~52ZF 2017 10 21.06262 22 14 40.721 -00 18 33.53 22.9r 16PN219 W84 C~52ZF 2017 10 21.06399 22 14 40.707 -00 18 33.64 22.8i 16PN219 W84 C~52ZF 2018 09 17.21221 22 20 33.374 +00 29 45.37 23.3r 16PN219 W84 C~52ZF 2018 09 17.21359 22 20 33.368 +00 29 45.28 22.1z 16PN219 W84 C~52ZF 2018 09 17.21497 22 20 33.368 +00 29 45.36 22.6i 16PN219 W84 C~52ZF 2018 11 26.03549 22 18 19.227 +00 05 23.31 22.6z 16PN219 W84 C~52ZF 2023 09 06.263630 22 42 19.364 +03 28 00.71 22.2G 16PN219 G37 C~7BNp 2023 09 06.300000 22 42 19.223 +03 27 59.44 16PN219 G37 C~7BNp
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 -0.04
2 2.9270 0.00 0.10 0.00 0.16
3 2.9679 0.00 0.04 0.00 -0.20
4 3.0415 0.00 -0.05 0.00 -0.05
5 3.0415 0.00 -0.02 0.00 -0.03
6 3.0415 0.00 0.03 0.00 -0.10
7 3.0497 0.00 0.05 0.00 0.03
8 4.0436 0.00 0.05 0.00 0.07
9 4.0436 0.00 0.00 0.00 0.00
10 4.0436 0.00 -0.03 0.00 -0.00
11 4.0792 0.00 0.04 0.00 0.26
12 4.1092 0.00 0.04 0.00 0.05
13 4.1092 0.00 -0.13 0.00 -0.03
14 5.0158 0.00 -0.09 0.00 -0.03
15 5.0158 0.00 -0.09 0.00 -0.08
16 5.0158 0.00 -0.01 0.00 0.03
17 5.2070 0.00 0.04 0.00 0.08
18 9.9852 0.00 -0.12 0.00 0.14
19 9.9853 0.00 0.16 0.00 -0.21
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.
16PN219 quality flag:3 Type: 5:3EE 5:3EE 5:3EE axisobj 42.359 42.359 42.359 ecceobj 0.143 0.143 0.143 incobj 12.299 12.299 12.299 qmin 34.619 34.622 34.616 qmax 50.481 50.481 50.481 amean 42.328 42.328 42.328 amin 41.951 41.949 41.953 amax 42.752 42.752 42.752 emean 0.154 0.154 0.154 emin 0.125 0.125 0.125 emax 0.181 0.181 0.181 imean 13.413 13.413 13.413 imin 12.583 12.582 12.584 imax 14.351 14.351 14.351 excite_mean 0.279 0.279 0.279 fracstop 1.000 1.000 1.000 cjmean 2.989 2.989 2.989 libcent 0 180.2 180.0 180.2 libamp 0 50.4 50.4 50.2 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 176.6 176.7 176.7 kozaiamp 180.0 180.0 180.0