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: 160091
# Created Sun Dec 22 02:06:58 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 58 observations of 58
# Arc: 20.15y
# First observation: 2000/07/29
# Last observation: 2020/09/21
# Chi-squared of fit: 88.13 DOF: 110 RMS: 0.22
# Min/Max residuals: -1.21 0.48
# Exact a, adot, b, bdot, g, gdot:
1.410590E-05 2.397486E-02 -1.783650E-07 8.066552E-04 2.417441E-02 2.451301E-03
# Covariance matrix:
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00
# lat0 lon0 xBary yBary zBary JD0
0.457402 -23.585302 0.512755 0.006830 -0.876242 2451754.813763
# Heliocentric elements and errors
Epoch: 2451754.5000 = 2000/07/29
Mean Anomaly: 47.68056 +/- 0.000
Argument of Peri: 315.28822 +/- 0.000
Long of Asc Node: 322.69768 +/- 0.000
Inclination: 1.98534 +/- 0.000
Eccentricity: 0.10858040 +/- 0.0000
Semi-Major Axis: 45.23014365 +/- 0.0000
Time of Perihelion: 2437038.8586 +/- 0.0
Perihelion: 40.31903675 +/- 0.0000
Aphelion: 50.14125054 +/- 0.0000
Period (y) 304.1937 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 38.51331277 +/- 0.0000
Ecliptic Y -17.36642946 +/- 0.0000
Ecliptic Z 0.33020669 +/- 0.0000
Ecliptic XDOT 0.00133305 +/- 0.0000
Ecliptic YDOT 0.00238324 +/- 0.0000
Ecliptic ZDOT 0.00009372 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.24893388 +/- 0.0000
Geocenter to KBO 41.36602211 +/- 0.0000
# Hcoef: 6.86
The following table shows the complete astrometric record for 160091. 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 (160091) followed by the observatory code and reference code for the source of the astrometry.
2000 07 29.31302 22 32 00.04 -08 43 58.1 22.6R 160091 807 Cc0956 2000 07 29.42109 22 31 59.62 -08 44 00.6 160091 807 Cc0956 2000 08 25.18432 22 30 06.49 -08 54 46.2 23.0R 160091 807 Cc0956 2000 08 25.24361 22 30 06.21 -08 54 48.1 160091 807 Cc0956 2000 09 03.267104 22 29 25.57 -08 58 42.5 160091 645 C~1ILI 2000 09 19.18728 22 28 16.58 -09 05 19.6 22.8R 160091 695 Cc2364 2000 09 19.28280 22 28 16.18 -09 05 21.6 160091 695 Cc2364 2001 08 21.18017 22 35 31.61 -08 19 52.9 21.8R 160091 807 Cg3073 2001 08 21.25576 22 35 31.26 -08 19 54.7 160091 807 Cg3073 2002 08 11.33940 22 41 18.14 -07 42 34.0 22.2R 160091 807 Cg3073 2002 08 12.30468 22 41 14.14 -07 42 56.8 160091 807 Cg3073 2002 08 12.38292 22 41 13.80 -07 42 58.6 160091 807 Cg3073 2007 06 26.41628 23 07 54.35 -04 45 36.3 23.9R 160091 250 S~06He 2007 06 26.42323 23 07 54.34 -04 45 36.3 160091 250 S~06He 2007 06 26.48156 23 07 54.29 -04 45 36.5 160091 250 S~06He 2007 06 26.48851 23 07 54.29 -04 45 36.5 160091 250 S~06He 2007 07 11.32760 23 07 33.58 -04 47 24.6 160091 304 Cv1967 2007 07 11.42412 23 07 33.38 -04 47 25.8 160091 304 Cv1967 2007 07 12.23520 23 07 31.78 -04 47 34.8 160091 304 Cv1967 2007 07 12.41740 23 07 31.40 -04 47 36.8 160091 304 Cv1967 2013 09 11.29429 23 32 39.248 -01 50 30.45 24.3g 160091 W84 C~50zN 2013 09 28.07505 23 31 27.456 -01 58 08.06 23.7g 160091 W84 C~50zN 2013 09 30.12209 23 31 18.946 -01 59 03.33 23.1r 160091 W84 C~50zN 2013 09 30.12507 23 31 18.938 -01 59 03.49 22.5i 160091 W84 C~50zN 2013 10 12.09209 23 30 31.460 -02 04 11.05 22.8i 160091 W84 C~50zN 2013 10 12.11624 23 30 31.363 -02 04 11.56 23.5z 160091 W84 C~50zN 2014 10 28.12146 23 34 18.840 -01 37 22.15 23.5r 160091 W84 C~50zN 2014 10 28.15819 23 34 18.724 -01 37 23.01 22.7z 160091 W84 C~50zN 2015 11 07.03969 23 38 31.025 -01 07 52.02 23.5i 160091 W84 C~50zN 2016 08 15.26293 23 48 24.695 -00 01 32.33 22.9z 160091 W84 C~50zN 2016 10 05.15271 23 44 58.068 -00 23 20.55 23.5r 160091 W84 C~50zN 2016 10 05.15408 23 44 58.058 -00 23 20.66 22.7i 160091 W84 C~50zN 2016 10 08.06582 23 44 46.309 -00 24 37.52 23.1i 160091 W84 C~50zN 2016 10 09.14020 23 44 42.011 -00 25 05.32 23.2r 160091 W84 C~50zN 2017 09 17.29967 23 50 52.10 +00 17 17.4 23.1i 160091 T09 C~7cVV 2017 09 17.31304 23 50 52.05 +00 17 17.1 22.9i 160091 T09 C~7cVV 2017 09 17.34248 23 50 51.92 +00 17 16.0 22.8i 160091 T09 C~7cVV 2017 09 17.38284 23 50 51.74 +00 17 15.2 22.8i 160091 T09 C~7cVV 2017 09 18.22364 23 50 48.144 +00 16 52.47 23.0i 160091 W84 C~50zN 2017 09 27.15249 23 50 10.007 +00 12 47.35 22.9r 160091 W84 C~50zN 2017 09 27.15388 23 50 09.999 +00 12 47.31 22.8z 160091 W84 C~50zN 2017 09 27.15665 23 50 09.995 +00 12 47.25 22.5i 160091 W84 C~50zN 2017 11 15.03240 23 47 23.936 -00 05 38.26 23.1r 160091 W84 C~50zN 2017 11 15.06992 23 47 23.852 -00 05 38.93 24.4g 160091 W84 C~50zN 2017 11 15.07129 23 47 23.858 -00 05 38.78 22.9i 160091 W84 C~50zN 2017 11 17.02214 23 47 20.056 -00 06 05.60 23.5r 160091 W84 C~50zN 2018 09 17.28275 23 55 29.664 +00 49 41.12 22.8i 160091 W84 C~50zN 2018 09 17.28411 23 55 29.655 +00 49 40.73 24.3g 160091 W84 C~50zN 2018 10 01.23177 23 54 30.325 +00 43 19.55 22.1z 160091 W84 C~50zN 2019 09 04.385370 00 00 59.526 +01 27 31.66 23.2G 160091 G37 C~4FXH 2019 09 04.466710 00 00 59.204 +01 27 29.77 160091 G37 C~4FXH 2019 09 04.483050 00 00 59.123 +01 27 29.34 160091 G37 C~4FXH 2019 10 26.108180 23 57 29.784 +01 04 54.67 23.3G 160091 G37 C~3Qaq 2019 10 26.176400 23 57 29.532 +01 04 53.30 160091 G37 C~3Qaq 2019 10 26.271410 23 57 29.208 +01 04 51.18 160091 G37 C~3Qaq 2020 09 21.164830 00 04 21.321 +01 51 49.06 23.3G 160091 G37 C~4FXH 2020 09 21.207350 00 04 21.136 +01 51 47.89 160091 G37 C~4FXH 2020 09 21.269510 00 04 20.870 +01 51 46.16 160091 G37 C~4FXH
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 0.25 0.00 0.26
2 0.0003 0.00 0.19 0.00 0.06
3 0.0736 0.00 0.22 0.00 0.05
4 0.0737 0.00 0.09 0.00 -0.33
5 0.0984 0.00 -0.65 0.00 -1.21
6 0.1420 0.00 0.03 0.00 -0.10
7 0.1423 0.00 0.05 0.00 0.18
8 1.0619 0.00 0.18 0.00 -0.06
9 1.0621 0.00 0.03 0.00 0.07
10 2.0343 0.00 0.05 0.00 -0.12
11 2.0369 0.00 0.09 0.00 0.39
12 2.0372 0.00 -0.04 0.00 0.48
13 6.9079 0.00 -0.41 0.00 0.19
14 6.9079 0.00 -0.47 0.00 0.22
15 6.9081 0.00 -0.51 0.00 0.22
16 6.9081 0.00 -0.43 0.00 0.25
17 6.9487 0.00 0.21 0.00 0.01
18 6.9490 0.00 0.17 0.00 -0.14
19 6.9512 0.00 0.38 0.00 -0.09
20 6.9517 0.00 0.45 0.00 -0.01
21 13.1197 0.00 -0.03 0.00 0.15
22 13.1657 0.00 -0.14 0.00 0.40
23 13.1713 0.00 0.15 0.00 -0.00
24 13.1713 0.00 0.22 0.00 -0.08
25 13.2040 0.00 0.13 0.00 -0.04
26 13.2041 0.00 0.07 0.00 0.04
27 14.2473 0.00 0.13 0.00 -0.08
28 14.2474 0.00 0.08 0.00 -0.21
29 15.2737 0.00 0.03 0.00 -0.16
30 16.0464 0.00 0.24 0.00 0.29
31 16.1857 0.00 0.06 0.00 -0.01
32 16.1857 0.00 -0.00 0.00 -0.08
33 16.1937 0.00 0.24 0.00 -0.11
34 16.1967 0.00 0.06 0.00 0.10
35 17.1362 0.00 -0.06 0.00 -0.12
36 17.1362 0.00 0.06 0.00 -0.05
37 17.1363 0.00 0.02 0.00 -0.35
38 17.1364 0.00 -0.05 0.00 -0.05
39 17.1387 0.00 0.03 0.00 0.02
40 17.1631 0.00 0.04 0.00 0.02
41 17.1632 0.00 0.01 0.00 0.02
42 17.1632 0.00 0.13 0.00 0.04
43 17.2970 0.00 -0.07 0.00 -0.10
44 17.2971 0.00 -0.15 0.00 -0.24
45 17.2971 0.00 -0.02 0.00 -0.07
46 17.3024 0.00 -0.07 0.00 0.05
47 18.1354 0.00 0.05 0.00 0.04
48 18.1354 0.00 0.01 0.00 -0.32
49 18.1736 0.00 -0.19 0.00 0.16
50 19.0994 0.00 -0.00 0.00 -0.08
51 19.0997 0.00 0.11 0.00 0.06
52 19.0997 0.00 -0.11 0.00 0.03
53 19.2411 0.00 -0.06 0.00 -0.06
54 19.2412 0.00 -0.25 0.00 0.15
55 19.2415 0.00 -0.10 0.00 0.22
56 20.1474 0.00 0.07 0.00 0.05
57 20.1476 0.00 0.03 0.00 0.04
58 20.1477 0.00 0.07 0.00 -0.00
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.
160091 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.322 45.322 45.322 ecceobj 0.110 0.110 0.110 incobj 1.982 1.982 1.982 qmin 39.662 39.632 39.708 qmax 51.037 51.031 51.050 amean 45.179 45.181 45.176 amin 44.795 44.792 44.799 amax 45.566 45.580 45.581 emean 0.106 0.106 0.106 emin 0.091 0.091 0.091 emax 0.120 0.120 0.120 imean 3.486 3.486 3.486 imin 2.831 2.830 2.832 imax 3.989 3.989 3.990 excite_mean 0.122 0.122 0.122 fracstop 1.000 1.000 1.000 cjmean 3.097 3.097 3.097 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 176.3 176.3 176.4 kozaiamp 180.0 180.0 180.0