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: 16FX58 # Created Tue Apr 16 01:17:50 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 23 observations of 23 # Arc: 6.95y # First observation: 2013/03/17 # Last observation: 2020/02/26 # Chi-squared of fit: 31.79 DOF: 40 RMS: 0.21 # Min/Max residuals: -0.45 0.58 # Exact a, adot, b, bdot, g, gdot: 1.129022E-05 1.173432E-02 -4.186437E-06 -4.594885E-03 1.697601E-02 -3.519362E-03 # Covariance matrix: 4.4877E-13 -2.1203E-13 -7.1557E-14 6.1074E-14 -2.3930E-13 -1.7633E-12 -2.1203E-13 2.1119E-13 9.2978E-14 -8.0401E-14 5.1323E-13 2.3000E-12 -7.1557E-14 9.2978E-14 3.3429E-13 -9.5544E-14 2.5127E-13 1.0926E-12 6.1074E-14 -8.0401E-14 -9.5544E-14 4.8128E-14 -2.2091E-13 -9.4593E-13 -2.3930E-13 5.1323E-13 2.5127E-13 -2.2091E-13 2.0905E-12 6.2466E-12 -1.7633E-12 2.3000E-12 1.0926E-12 -9.4593E-13 6.2466E-12 2.7038E-11 # lat0 lon0 xBary yBary zBary JD0 -8.771565 172.956382 -0.063928 -0.151455 -0.982086 2456368.614348 # Heliocentric elements and errors Epoch: 2456368.5000 = 2013/03/17 Mean Anomaly: 264.41531 +/- 0.117 Argument of Peri: 328.08731 +/- 0.068 Long of Asc Node: 331.97436 +/- 0.001 Inclination: 22.90635 +/- 0.001 Eccentricity: 0.28328577 +/- 0.0003 Semi-Major Axis: 54.42332344 +/- 0.0215 Time of Perihelion: 2495305.4413 +/- 79.5 Perihelion: 39.00597045 +/- 0.0206 Aphelion: 69.84067643 +/- 0.0308 Period (y) 401.5002 +/- 0.24 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -58.77157995 +/- 0.0049 Ecliptic Y 7.19920773 +/- 0.0006 Ecliptic Z -8.98326238 +/- 0.0008 Ecliptic XDOT 0.00043054 +/- 0.0000 Ecliptic YDOT -0.00196025 +/- 0.0000 Ecliptic ZDOT -0.00064569 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 59.88863853 +/- 0.0048 Geocenter to KBO 58.90686972 +/- 0.0050 # Hcoef: 5.79
The following table shows the complete astrometric record for 16FX58. 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 (16FX58) followed by the observatory code and reference code for the source of the astrometry.
2013 03 17.11357 11 20 14.96 -05 15 42.1 23.2r 16FX58 W84 C~2fCQ 2013 03 17.17579 11 20 14.75 -05 15 41.0 16FX58 W84 C~2fCQ 2013 03 17.23999 11 20 14.53 -05 15 39.7 16FX58 W84 C~2fCQ 2016 03 28.03491 11 25 54.48 -06 44 23.1 23.7V 16FX58 W84 C~1qoJ 2016 03 28.04185 11 25 54.48 -06 44 22.9 16FX58 W84 C~1qoJ 2016 03 28.04879 11 25 54.48 -06 44 23.0 16FX58 W84 C~1qoJ 2016 03 29.03309 11 25 51.22 -06 44 02.4 16FX58 W84 C~1qoJ 2016 03 29.04003 11 25 51.23 -06 44 02.4 16FX58 W84 C~1qoJ 2016 03 29.04697 11 25 51.24 -06 44 02.4 16FX58 W84 C~1qoJ 2016 03 30.05924 11 25 47.89 -06 43 41.0 16FX58 W84 C~1qoJ 2016 03 30.06618 11 25 47.89 -06 43 41.3 16FX58 W84 C~1qoJ 2016 03 30.07312 11 25 47.88 -06 43 41.4 16FX58 W84 C~1qoJ 2016 04 01.06375 11 25 41.47 -06 42 59.6 16FX58 W84 C~1qoJ 2016 04 01.07069 11 25 41.47 -06 42 59.5 16FX58 W84 C~1qoJ 2016 04 01.07763 11 25 41.48 -06 42 59.7 16FX58 W84 C~1qoJ 2018 04 12.08383 11 29 25.606 -07 41 54.48 23.6r 16FX58 807 C~2fCQ 2018 04 13.07444 11 29 22.715 -07 41 33.36 23.5r 16FX58 807 C~2fCQ 2018 05 16.04451 11 28 10.394 -07 31 05.71 23.6r 16FX58 304 C~2fCQ 2018 05 16.96556 11 28 09.167 -07 30 51.48 23.6r 16FX58 304 C~2fCQ 2020 02 25.27575 11 36 21.79 -08 59 55.7 22.7i 16FX58 W84 C~3jrk 2020 02 25.30124 11 36 21.71 -08 59 55.4 16FX58 W84 C~3jrk 2020 02 26.26268 11 36 18.51 -08 59 42.0 16FX58 W84 C~3jrk 2020 02 26.28824 11 36 18.44 -08 59 41.8 16FX58 W84 C~3jrk
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 -0.08 0.00 0.01
2 0.0002 0.00 -0.03 0.00 -0.09
3 0.0003 0.00 -0.04 0.00 -0.04
4 3.0306 0.00 -0.33 0.00 0.06
5 3.0306 0.00 0.02 0.00 0.12
6 3.0306 0.00 0.36 0.00 -0.13
7 3.0333 0.00 -0.40 0.00 0.18
8 3.0333 0.00 0.09 0.00 0.03
9 3.0334 0.00 0.58 0.00 -0.11
10 3.0361 0.00 -0.45 0.00 0.36
11 3.0361 0.00 -0.11 0.00 -0.08
12 3.0362 0.00 0.08 0.00 -0.33
13 3.0416 0.00 -0.27 0.00 0.17
14 3.0416 0.00 0.07 0.00 0.13
15 3.0417 0.00 0.55 0.00 -0.21
16 5.0704 0.00 -0.04 0.00 0.04
17 5.0731 0.00 0.09 0.00 0.21
18 5.1634 0.00 0.03 0.00 -0.02
19 5.1659 0.00 -0.16 0.00 -0.12
20 6.9436 0.00 -0.04 0.00 0.03
21 6.9437 0.00 0.05 0.00 -0.02
22 6.9463 0.00 -0.16 0.00 0.00
23 6.9464 0.00 0.09 0.00 -0.16
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.
16FX58 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 54.202 54.202 54.202 ecceobj 0.286 0.286 0.286 incobj 22.977 22.977 22.977 qmin 37.727 37.696 37.716 qmax 72.185 72.065 72.102 amean 54.541 54.540 54.541 amin 54.024 54.001 54.000 amax 55.235 55.208 55.206 emean 0.290 0.290 0.290 emin 0.275 0.275 0.275 emax 0.307 0.306 0.306 imean 23.876 23.876 23.876 imin 23.451 23.454 23.451 imax 24.386 24.387 24.385 excite_mean 0.498 0.498 0.498 fracstop 1.000 1.000 1.000 cjmean 2.907 2.907 2.907 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 163.7 163.6 163.8 kozaiamp 180.0 180.0 180.0