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 Wed Jul 17 01:11:17 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 25 observations of 25 # Arc: 11.08y # First observation: 2013/03/17 # Last observation: 2024/04/14 # Chi-squared of fit: 33.93 DOF: 44 RMS: 0.21 # Min/Max residuals: -0.42 0.62 # Exact a, adot, b, bdot, g, gdot: 1.159667E-05 1.173386E-02 -4.366671E-06 -4.594705E-03 1.697460E-02 -3.525235E-03 # Covariance matrix: 3.8678E-13 -1.2432E-13 -6.8971E-14 3.6856E-14 8.4028E-15 -7.1002E-13 -1.2432E-13 5.9637E-14 3.8792E-14 -2.1008E-14 4.6717E-14 4.0219E-13 -6.8971E-14 3.8792E-14 2.4117E-13 -4.8273E-14 2.7306E-14 2.9830E-13 3.6856E-14 -2.1008E-14 -4.8273E-14 1.5661E-14 -1.7905E-14 -1.6130E-13 8.4028E-15 4.6717E-14 2.7306E-14 -1.7905E-14 6.1014E-13 3.1495E-13 -7.1002E-13 4.0219E-13 2.9830E-13 -1.6130E-13 3.1495E-13 3.0903E-12 # 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: 264.54196 +/- 0.046 Argument of Peri: 328.01271 +/- 0.025 Long of Asc Node: 331.97426 +/- 0.000 Inclination: 22.90630 +/- 0.000 Eccentricity: 0.28356049 +/- 0.0001 Semi-Major Axis: 54.44626663 +/- 0.0090 Time of Perihelion: 2495278.4448 +/- 32.8 Perihelion: 39.00745642 +/- 0.0088 Aphelion: 69.88507683 +/- 0.0130 Period (y) 401.7541 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -58.77639711 +/- 0.0027 Ecliptic Y 7.19978468 +/- 0.0003 Ecliptic Z -8.98402174 +/- 0.0004 Ecliptic XDOT 0.00043151 +/- 0.0000 Ecliptic YDOT -0.00196046 +/- 0.0000 Ecliptic ZDOT -0.00064557 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 59.89354947 +/- 0.0026 Geocenter to KBO 58.91178068 +/- 0.0027 # Hcoef: 5.74
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 2024 04 14.178320 11 42 33.186 -10 52 53.65 22.8G 16FX58 G37 C~7zow 2024 04 14.264160 11 42 32.923 -10 52 52.00 16FX58 G37 C~7zow
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 -0.12 0.00 0.07
2 0.0002 0.00 -0.08 0.00 -0.03
3 0.0003 0.00 -0.08 0.00 0.02
4 3.0306 0.00 -0.29 0.00 0.02
5 3.0306 0.00 0.06 0.00 0.07
6 3.0306 0.00 0.40 0.00 -0.17
7 3.0333 0.00 -0.37 0.00 0.14
8 3.0333 0.00 0.13 0.00 -0.01
9 3.0334 0.00 0.62 0.00 -0.15
10 3.0361 0.00 -0.42 0.00 0.32
11 3.0361 0.00 -0.07 0.00 -0.12
12 3.0362 0.00 0.12 0.00 -0.37
13 3.0416 0.00 -0.24 0.00 0.14
14 3.0416 0.00 0.09 0.00 0.09
15 3.0417 0.00 0.58 0.00 -0.25
16 5.0704 0.00 -0.07 0.00 0.05
17 5.0731 0.00 0.07 0.00 0.22
18 5.1634 0.00 -0.07 0.00 0.04
19 5.1659 0.00 -0.26 0.00 -0.06
20 6.9436 0.00 -0.05 0.00 0.10
21 6.9437 0.00 0.03 0.00 0.05
22 6.9463 0.00 -0.18 0.00 0.07
23 6.9464 0.00 0.07 0.00 -0.09
24 11.0775 0.00 0.00 0.00 0.09
25 11.0778 0.00 0.06 0.00 -0.19
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 54.225 54.225 54.225 ecceobj 0.286 0.286 0.286 incobj 22.977 22.977 22.977 qmin 37.671 37.660 37.762 qmax 72.092 72.159 72.181 amean 54.564 54.563 54.564 amin 54.023 54.021 54.050 amax 55.212 55.236 55.232 emean 0.290 0.290 0.290 emin 0.275 0.275 0.275 emax 0.307 0.307 0.307 imean 23.877 23.877 23.877 imin 23.455 23.457 23.452 imax 24.382 24.382 24.382 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 163.8 163.9 163.8 kozaiamp 180.0 180.0 180.0