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: 16AN384
# Created Fri Nov 22 02:10:37 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 49 observations of 49
# Arc: 10.24y
# First observation: 2011/01/05
# Last observation: 2021/04/03
# Chi-squared of fit: 36.49 DOF: 92 RMS: 0.15
# Min/Max residuals: -0.58 0.44
# Exact a, adot, b, bdot, g, gdot:
3.351254E-05 2.415307E-01 4.435732E-06 1.757048E-02 1.140238E-01 -1.225325E-01
# Covariance matrix:
4.6127E-12 6.3323E-08 -9.0538E-12 -1.0314E-08 -3.8522E-09 -6.9223E-08
6.3323E-08 1.4814E-03 -1.8190E-07 -2.4159E-04 -7.7381E-05 -1.6198E-03
-9.0538E-12 -1.8190E-07 2.7544E-11 2.9626E-08 1.1095E-08 1.9885E-07
-1.0314E-08 -2.4159E-04 2.9626E-08 3.9432E-05 1.2603E-05 2.6417E-04
-3.8522E-09 -7.7381E-05 1.1095E-08 1.2603E-05 4.7206E-06 8.4590E-05
-6.9223E-08 -1.6198E-03 1.9885E-07 2.6417E-04 8.4590E-05 1.7712E-03
# lat0 lon0 xBary yBary zBary JD0
8.574213 -0.888617 -0.949304 -0.039209 0.260086 2455566.742488
# Heliocentric elements and errors
Epoch: 2455566.5000 = 2011/01/05
Mean Anomaly: 323.74834 +/- 0.020
Argument of Peri: 149.32228 +/- 0.006
Long of Asc Node: 295.07833 +/- 0.000
Inclination: 9.30613 +/- 0.000
Eccentricity: 0.41147680 +/- 0.0001
Semi-Major Axis: 11.15073370 +/- 0.0000
Time of Perihelion: 2456936.0533 +/- 0.8
Perihelion: 6.56246545 +/- 0.0011
Aphelion: 15.73900196 +/- 0.0011
Period (y) 37.2360 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 8.42693577 +/- 0.0000
Ecliptic Y 0.81838700 +/- 0.0000
Ecliptic Z 1.30755355 +/- 0.0000
Ecliptic XDOT -0.00288273 +/- 0.0000
Ecliptic YDOT 0.00585100 +/- 0.0000
Ecliptic ZDOT -0.00002146 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 8.56706769 +/- 0.0000
Geocenter to KBO 8.77028987 +/- 0.0000
# Hcoef: 13.63
The following table shows the complete astrometric record for 16AN384. 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 (16AN384) followed by the observatory code and reference code for the source of the astrometry.
2011 01 05.241722 23 43 01.367 +07 30 33.59 23.0G 16AN384 F51 C~7BJc 2012 10 23.505502 02 13 22.946 +24 31 56.60 21.8G 16AN384 F51 C~7BJc 2012 10 23.535791 02 13 22.247 +24 31 53.39 21.8G 16AN384 F51 C~7BJc 2013 12 03.290100 03 54 22.257 +29 00 24.17 21.7G 16AN384 F51 C~7BJc 2013 12 03.304240 03 54 21.897 +29 00 22.63 21.3G 16AN384 F51 C~7BJc 2013 12 03.332535 03 54 21.186 +29 00 19.54 21.3G 16AN384 F51 C~7BJc 2016 01 04.35355 07 58 56.487 +20 30 04.50 21.8w 16AN384 F51 C~7BJc 2016 01 04.36394 07 58 56.211 +20 30 04.84 21.8w 16AN384 F51 C~7BJc 2016 01 04.37433 07 58 55.960 +20 30 05.00 21.8w 16AN384 F51 C~7BJc 2016 01 04.38474 07 58 55.732 +20 30 05.33 21.6w 16AN384 F51 C~7BJc 2016 01 16.501967 07 53 57.990 +20 34 49.06 21.4G 16AN384 F51 C~7BJc 2016 02 01.287489 07 47 33.840 +20 40 16.95 21.4G 16AN384 F51 C~7BJc 2016 02 01.327160 07 47 32.909 +20 40 18.00 21.1G 16AN384 F51 C~7BJc 2016 02 05.286217 07 46 04.054 +20 41 18.03 21.7G 16AN384 F51 C~7BJc 2016 02 05.300455 07 46 03.730 +20 41 18.25 21.8G 16AN384 F51 C~7BJc 2016 02 05.314739 07 46 03.414 +20 41 18.69 21.6G 16AN384 F51 C~7BJc 2016 02 05.329272 07 46 03.094 +20 41 18.85 21.8G 16AN384 F51 C~7BJc 2016 02 10.284501 07 44 18.995 +20 42 16.51 21.9G 16AN384 F51 C~7BJc 2016 02 10.297596 07 44 18.732 +20 42 16.72 22.0G 16AN384 F51 C~7BJc 2016 02 10.310829 07 44 18.458 +20 42 16.74 21.9G 16AN384 F51 C~7BJc 2016 02 10.324327 07 44 18.176 +20 42 16.85 22.0G 16AN384 F51 C~7BJc 2016 04 02.268782 07 38 41.608 +20 26 02.99 22.2G 16AN384 F51 C~7BJc 2016 04 02.281393 07 38 41.714 +20 26 02.33 22.5G 16AN384 F51 C~7BJc 2016 04 02.294046 07 38 41.818 +20 26 01.62 22.4G 16AN384 F51 C~7BJc 2016 04 02.306718 07 38 41.926 +20 26 01.00 22.3G 16AN384 F51 C~7BJc 2017 01 27.530003 09 24 32.051 +10 42 15.34 21.8G 16AN384 F51 C~7BJc 2017 01 27.542173 09 24 31.788 +10 42 16.07 21.9G 16AN384 F51 C~7BJc 2017 01 27.554363 09 24 31.520 +10 42 16.32 22.1G 16AN384 F51 C~7BJc 2017 01 27.566606 09 24 31.245 +10 42 17.35 22.2G 16AN384 F51 C~7BJc 2017 02 03.508628 09 21 58.569 +10 49 45.52 22.0G 16AN384 F51 C~7BJc 2017 02 03.521366 09 21 58.295 +10 49 46.26 21.9G 16AN384 F51 C~7BJc 2017 02 03.534041 09 21 57.980 +10 49 47.02 22.1G 16AN384 F51 C~7BJc 2017 02 03.546741 09 21 57.702 +10 49 48.00 22.2G 16AN384 F51 C~7BJc 2017 02 21.334727 09 15 29.833 +11 11 09.95 22.0G 16AN384 F51 C~7BJc 2017 02 21.346354 09 15 29.600 +11 11 10.62 21.7G 16AN384 F51 C~7BJc 2017 02 21.358100 09 15 29.357 +11 11 11.54 21.7G 16AN384 F51 C~7BJc 2017 02 21.369892 09 15 29.099 +11 11 12.47 21.7G 16AN384 F51 C~7BJc 2017 03 27.364446 09 06 55.957 +11 44 22.40 22.2G 16AN384 F51 C~7BJc 2017 03 27.387177 09 06 55.761 +11 44 23.16 22.8G 16AN384 F51 C~7BJc 2018 01 13.514855 10 39 09.309 +01 19 46.46 22.5G 16AN384 F51 C~7BJc 2018 01 13.526618 10 39 09.206 +01 19 45.98 23.5G 16AN384 F51 C~7BJc 2018 02 21.439393 10 28 18.071 +01 53 00.08 22.7G 16AN384 F51 C~7BJc 2018 02 21.452222 10 28 17.823 +01 53 01.35 23.1G 16AN384 F51 C~7BJc 2019 01 08.626758 11 33 31.129 -05 54 21.59 23.0G 16AN384 F51 C~7BJc 2019 01 08.637210 11 33 31.086 -05 54 22.11 22.8G 16AN384 F51 C~7BJc 2019 01 08.647660 11 33 31.082 -05 54 22.29 23.1G 16AN384 F51 C~7BJc 2019 01 08.658106 11 33 31.013 -05 54 23.26 23.7G 16AN384 F51 C~7BJc 2020 05 11.272553 11 52 55.209 -09 35 07.15 23.6G 16AN384 F51 C~7BJc 2021 04 03.365752 12 41 54.330 -15 30 16.08 24.0G 16AN384 F51 C~7BJc
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 0.16 0.00 -0.38
2 1.7995 0.00 -0.03 0.00 0.08
3 1.7996 0.00 -0.03 0.00 0.07
4 2.9105 0.00 0.00 0.00 0.07
5 2.9105 0.00 -0.02 0.00 0.08
6 2.9106 0.00 0.09 0.00 0.12
7 4.9969 0.00 0.21 0.00 0.05
8 4.9969 0.00 -0.17 0.00 0.14
9 4.9969 0.00 -0.17 0.00 0.05
10 4.9970 0.00 0.18 0.00 0.13
11 5.0301 0.00 0.10 0.00 0.03
12 5.0734 0.00 -0.10 0.00 -0.15
13 5.0735 0.00 -0.07 0.00 0.17
14 5.0843 0.00 -0.04 0.00 -0.10
15 5.0843 0.00 -0.12 0.00 -0.10
16 5.0844 0.00 -0.06 0.00 0.12
17 5.0844 0.00 0.03 0.00 0.07
18 5.0980 0.00 -0.05 0.00 0.02
19 5.0980 0.00 0.06 0.00 0.09
20 5.0981 0.00 0.05 0.00 -0.03
21 5.0981 0.00 0.01 0.00 -0.06
22 5.2403 0.00 -0.10 0.00 0.06
23 5.2404 0.00 -0.06 0.00 0.04
24 5.2404 0.00 -0.06 0.00 -0.03
25 5.2404 0.00 -0.01 0.00 -0.01
26 6.0624 0.00 -0.09 0.00 0.09
27 6.0624 0.00 0.01 0.00 0.09
28 6.0625 0.00 0.03 0.00 -0.39
29 6.0625 0.00 -0.03 0.00 -0.09
30 6.0815 0.00 -0.09 0.00 0.10
31 6.0815 0.00 0.14 0.00 -0.02
32 6.0816 0.00 -0.27 0.00 -0.11
33 6.0816 0.00 -0.11 0.00 0.02
34 6.1303 0.00 -0.14 0.00 -0.06
35 6.1303 0.00 0.06 0.00 -0.25
36 6.1304 0.00 0.15 0.00 -0.19
37 6.1304 0.00 0.03 0.00 -0.12
38 6.2235 0.00 0.21 0.00 0.14
39 6.2235 0.00 0.12 0.00 0.10
40 7.0233 0.00 -0.03 0.00 -0.09
41 7.0234 0.00 0.44 0.00 -0.58
42 7.1299 0.00 -0.32 0.00 -0.01
43 7.1299 0.00 -0.10 0.00 0.11
44 8.0093 0.00 -0.06 0.00 0.04
45 8.0093 0.00 -0.17 0.00 0.06
46 8.0093 0.00 0.30 0.00 0.41
47 8.0094 0.00 -0.20 0.00 -0.02
48 9.3471 0.00 0.05 0.00 0.25
49 10.2426 0.00 0.15 0.00 0.08
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.
16AN384 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 11.085 11.085 11.085 ecceobj 0.410 0.410 0.410 incobj 9.323 9.323 9.323 qmin 6.328 6.541 6.541 qmax 18.281 17.836 15.938 amean 11.478 11.823 11.234 amin 10.469 11.085 11.085 amax 12.481 12.282 11.496 emean 0.405 0.375 0.398 emin 0.276 0.320 0.373 emax 0.472 0.452 0.411 imean 14.031 14.190 10.990 imin 10.345 10.456 10.469 imax 19.778 18.781 12.293 excite_mean 0.477 0.453 0.442 fracstop 0.004 0.002 0.001 cjmean 3.723 3.674 3.780 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 190.4 232.8 205.5 kozaiamp 169.5 67.4 54.0