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: 16PA101 # Created Sun Dec 22 02:10:43 2024 # Orbit generated from Bernstein formalism # Fitting 48 observations of 51 # Arc: 1.41y # First observation: 2016/08/14 # Last observation: 2018/01/11 Preliminary a, adot, b, bdot, g, gdot: -0.000029 0.027679 -0.000003 0.004956 0.026771 0.000000 # Chi-squared of fit: 44.28 DOF: 90 RMS: 0.17 # Min/Max residuals: -0.45 0.43 # Exact a, adot, b, bdot, g, gdot: 1.774863E-05 2.740022E-02 1.366567E-06 4.919082E-03 2.655762E-02 -1.252178E-03 # Covariance matrix: 2.2981E-13 1.6174E-13 2.1193E-14 5.2023E-14 3.4339E-13 1.2963E-11 1.6174E-13 1.4185E-12 9.3596E-14 2.1664E-13 1.4858E-12 5.3409E-11 2.1193E-14 9.3596E-14 1.6526E-13 -1.1959E-13 1.0946E-13 3.7923E-12 5.2023E-14 2.1664E-13 -1.1959E-13 1.8006E-13 2.5077E-13 9.4191E-12 3.4339E-13 1.4858E-12 1.0946E-13 2.5077E-13 1.7316E-12 6.1705E-11 1.2963E-11 5.3409E-11 3.7923E-12 9.4191E-12 6.1705E-11 2.3519E-09 # lat0 lon0 xBary yBary zBary JD0 -18.273089 31.837642 0.952023 -0.109266 -0.331437 2457614.805760 # Heliocentric elements and errors Epoch: 2457610.5000 = 2016/08/10 Mean Anomaly: 312.06374 +/- 0.494 Argument of Peri: 353.40098 +/- 0.676 Long of Asc Node: 91.41642 +/- 0.003 Inclination: 20.47956 +/- 0.001 Eccentricity: 0.08876026 +/- 0.0015 Semi-Major Axis: 40.19318497 +/- 0.0121 Time of Perihelion: 2470003.8490 +/- 127.6 Perihelion: 36.62562753 +/- 0.0617 Aphelion: 43.76074240 +/- 0.0622 Period (y) 254.8220 +/- 0.11 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.17037168 +/- 0.0015 Ecliptic Y 18.23426977 +/- 0.0009 Ecliptic Z -11.80622883 +/- 0.0006 Ecliptic XDOT -0.00145771 +/- 0.0000 Ecliptic YDOT 0.00241196 +/- 0.0000 Ecliptic ZDOT 0.00052199 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.99299546 +/- 0.0013 Geocenter to KBO 37.65398310 +/- 0.0019 # Hcoef: 8.21
The following table shows the complete astrometric record for 16PA101. 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 (16PA101) followed by the observatory code and reference code for the source of the astrometry.
2016 08 14.304971 02 23 39.83 -05 04 22.1 23.8z 16PA101 W84 C~2b7z 2016 08 25.360041 02 23 28.22 -05 10 01.8 23.9z 16PA101 W84 C~2b7z 2016 08 26.263806 02 23 26.76 -05 10 31.0 23.9i 16PA101 W84 C~2b7z 2016 08 31.262217 02 23 17.31 -05 13 17.0 24.8g 16PA101 W84 C~2b7z 2016 08 31.301557 02 23 17.22 -05 13 18.1 24.0r 16PA101 W84 C~2b7z 2016 08 31.333039 02 23 17.15 -05 13 19.1 24.0z 16PA101 W84 C~2b7z 2016 09 02.250601 02 23 12.91 -05 14 23.9 23.8i 16PA101 W84 C~2b7z 2016 09 26.239705 02 21 54.74 -05 28 12.6 23.8r 16PA101 W84 C~2b7z 2016 09 26.242055 02 21 54.72 -05 28 12.8 23.6i 16PA101 W84 C~2b7z 2016 11 26.059647 02 16 58.15 -05 50 14.4 23.8r 16PA101 W84 C~2b7z 2016 11 30.053154 02 16 40.67 -05 50 21.2 23.7r 16PA101 W84 C~2b7z 2017 08 17.374372 02 29 10.43 -04 17 46.4 23.8z 16PA101 W84 C~2b7z 2017 08 17.405716 02 29 10.42 -04 17 47.2 23.9r 16PA101 W84 C~2b7z 2017 08 18.283969 02 29 09.81 -04 18 12.8 23.9i 16PA101 W84 C~2b7z 2017 08 24.398883 02 29 03.44 -04 21 17.0 24.3g 16PA101 W84 C~2b7z 2017 08 24.415295 02 29 03.41 -04 21 17.3 23.7i 16PA101 W84 C~2b7z 2017 08 25.363711 02 29 02.10 -04 21 47.0 24.1z 16PA101 W84 C~2b7z 2017 08 29.265572 02 28 55.83 -04 23 51.1 23.9r 16PA101 W84 C~2b7z 2017 08 29.367641 02 28 55.66 -04 23 54.0 23.7z 16PA101 W84 C~2b7z 2017 09 07.242427 02 28 36.09 -04 28 47.6 23.9z 16PA101 W84 C~2b7z 2017 09 14.204861 02 28 16.04 -04 32 44.1 24.7g 16PA101 W84 C~2b7z 2017 09 14.217344 02 28 16.00 -04 32 44.6 24.0r 16PA101 W84 C~2b7z 2017 09 23.245036 02 27 44.37 -04 37 53.0 24.1z 16PA101 W84 C~2b7z 2017 09 23.298315 02 27 44.19 -04 37 54.8 24.7g 16PA101 W84 C~2b7z 2017 09 23.310902 02 27 44.13 -04 37 55.1 24.0r 16PA101 W84 C~2b7z 2017 10 02.287746 02 27 07.19 -04 42 53.8 23.9i 16PA101 W84 C~2b7z 2017 10 10.143176 02 26 31.31 -04 47 01.7 23.6r 16PA101 W84 C~2b7z 2017 10 10.251809 02 26 30.78 -04 47 05.2 23.9i 16PA101 W84 C~2b7z 2017 10 13.217881 02 26 16.55 -04 48 33.9 24.5g 16PA101 W84 C~2b7z 2017 10 14.168629 02 26 11.90 -04 49 01.9 24.0r 16PA101 W84 C~2b7z 2017 10 14.199558 02 26 11.73 -04 49 03.0 23.9i 16PA101 W84 C~2b7z 2017 10 17.284208 02 25 56.47 -04 50 30.9 24.4g 16PA101 W84 C~2b7z 2017 10 26.238548 02 25 10.80 -04 54 23.5 24.0r 16PA101 W84 C~2b7z 2017 10 26.258431 02 25 10.70 -04 54 23.9 24.0i 16PA101 W84 C~2b7z 2017 11 07.129250 02 24 09.14 -04 58 29.3 23.9i 16PA101 W84 C~2b7z 2017 11 14.085219 02 23 33.62 -05 00 13.8 24.7g 16PA101 W84 C~2b7z 2017 11 14.097765 02 23 33.56 -05 00 14.2 23.9r 16PA101 W84 C~2b7z 2017 11 14.117634 02 23 33.45 -05 00 14.6 24.1i 16PA101 W84 C~2b7z 2017 11 14.152935 02 23 33.32 -05 00 14.7 24.2z 16PA101 W84 C~2b7z 2017 11 19.170514 02 23 08.44 -05 01 10.2 24.3g 16PA101 W84 C~2b7z 2017 11 19.188985 02 23 08.33 -05 01 10.5 24.1r 16PA101 W84 C~2b7z 2017 11 19.222611 02 23 08.16 -05 01 10.9 23.7i 16PA101 W84 C~2b7z 2017 11 25.104830 02 22 40.21 -05 01 53.5 23.9r 16PA101 W84 C~2b7z 2017 11 25.124650 02 22 40.13 -05 01 53.4 23.9i 16PA101 W84 C~2b7z 2017 11 29.130957 02 22 22.00 -05 02 08.0 24.2i 16PA101 W84 C~2b7z 2017 12 14.046800 02 21 22.97 -05 01 16.9 23.9r 16PA101 W84 C~2b80 2017 12 22.048258 02 20 58.07 -04 59 40.7 23.4i 16PA101 W84 C~2b80 2017 12 22.052252 02 20 58.04 -04 59 40.7 23.5z 16PA101 W84 C~2b80 2017 12 26.059103 02 20 47.59 -04 58 34.8 23.3z 16PA101 W84 C~2b80 2018 01 11.046025 02 20 21.02 -04 52 19.8 23.8r 16PA101 W84 C~2b80 2018 01 11.048386 02 20 21.01 -04 52 19.6 23.5i 16PA101 W84 C~2b80
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 -0.30 0.00 0.32
2 0.0303 -278.40 0.07 -260.72 -0.01
3 0.0327 -308.83 0.05 -280.79 0.11
4 0.0464 -497.93 0.03 -389.07 -0.45
5 0.0465 -499.57 0.05 -389.65 -0.22
6 0.0466 -500.89 0.07 -390.24 -0.16
7 0.0519 -582.45 0.03 -429.72 -0.16
8 0.1175 -1961.68 0.21 -813.84 0.38
9 0.1176 -1962.03 0.03 -813.93 0.32
10 0.2841 -6577.38 -0.24 -563.35 -0.08
11 0.2950 -6825.55 ( -0.09) -481.92 ( 0.60)
12 1.0077 5600.12 -0.26 947.73 0.16
13 1.0078 5599.70 -0.04 947.03 0.19
14 1.0102 5582.38 -0.15 926.07 0.05
15 1.0270 5429.87 -0.04 785.35 -0.16
16 1.0270 5429.34 -0.06 785.23 0.07
17 1.0296 5400.78 -0.14 763.98 -0.07
18 1.0403 5270.21 -0.01 679.27 -0.30
19 1.0406 5266.82 0.43 677.41 -0.05
20 1.0649 4891.34 -0.21 501.14 -0.13
21 1.0839 4528.67 -0.15 380.97 0.11
22 1.0839 4527.94 -0.17 380.70 0.04
23 1.1087 3977.99 -0.09 251.88 -0.07
24 1.1088 3974.84 0.31 251.10 -0.21
25 1.1088 3973.90 0.21 251.12 -0.04
26 1.1334 3352.73 0.05 158.34 0.23
27 1.1549 2763.89 -0.04 107.79 0.19
28 1.1552 2755.25 -0.17 107.20 0.04
29 1.1633 2525.02 0.35 96.15 -0.00
30 1.1660 2450.13 0.14 93.47 -0.09
31 1.1660 2447.36 -0.15 93.30 -0.20
32 1.1745 2202.95 0.15 88.21 -0.18
33 1.1990 1481.89 -0.10 101.49 0.05
34 1.1991 1480.35 -0.01 101.62 0.10
35 1.2316 531.70 0.28 183.24 -0.10
36 1.2506 -3.05 0.00 265.05 0.28
37 1.2506 -4.03 -0.02 264.98 0.03
38 1.2507 -5.72 -0.19 265.16 -0.06
39 1.2508 -7.58 ( 0.64) 265.73 ( 0.01)
40 1.2645 -376.14 0.37 339.60 0.12
41 1.2646 -377.79 0.06 339.88 0.10
42 1.2647 -380.31 -0.02 340.36 0.03
43 1.2808 -787.67 -0.15 441.86 -0.12
44 1.2808 -788.76 0.10 442.36 0.00
45 1.2918 -1048.59 -0.06 520.42 -0.06
46 1.3326 -1861.27 -0.05 867.19 0.09
47 1.3545 -2178.89 ( 0.57) 1083.64 ( -0.14)
48 1.3545 -2179.31 0.29 1083.79 -0.10
49 1.3655 -2303.99 -0.04 1198.64 -0.09
50 1.4093 -2550.93 -0.19 1685.89 -0.02
51 1.4093 -2551.01 -0.26 1686.13 0.14
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.
16PA101 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.673 40.688 40.659 ecceobj 0.094 0.097 0.091 incobj 20.470 20.471 20.469 qmin 35.898 35.903 35.507 qmax 45.160 45.264 45.581 amean 40.423 40.423 40.432 amin 40.066 40.079 40.051 amax 40.779 40.785 40.796 emean 0.095 0.095 0.098 emin 0.082 0.082 0.079 emax 0.109 0.110 0.118 imean 18.551 18.574 18.514 imin 17.728 17.801 17.603 imax 19.436 19.472 19.456 excite_mean 0.332 0.332 0.333 fracstop 1.000 1.000 1.000 cjmean 2.932 2.932 2.932 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 176.2 174.2 173.7 kozaiamp 180.0 180.0 180.0