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: 385191 # Created Sun Nov 24 02:07:00 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 73 observations of 73 # Arc: 25.15y # First observation: 1997/09/06 # Last observation: 2022/10/31 # Chi-squared of fit: 243.13 DOF: 140 RMS: 0.32 # Min/Max residuals: -1.38 0.95 # Exact a, adot, b, bdot, g, gdot: 1.375289E-05 2.254219E-02 -2.863368E-06 -5.093818E-03 2.420510E-02 1.831939E-04 # 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 -0.017280 -16.192065 -0.012802 -0.000511 -0.999285 2450698.459061 # Heliocentric elements and errors Epoch: 2450698.5000 = 1997/09/07 Mean Anomaly: 150.82998 +/- 0.000 Argument of Peri: 28.22441 +/- 0.000 Long of Asc Node: 163.74766 +/- 0.000 Inclination: 12.69527 +/- 0.000 Eccentricity: 0.01869267 +/- 0.0000 Semi-Major Axis: 41.63835936 +/- 0.0000 Time of Perihelion: 2409581.2554 +/- 0.0 Perihelion: 40.86002712 +/- 0.0000 Aphelion: 42.41669160 +/- 0.0000 Period (y) 268.6882 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 40.64568239 +/- 0.0000 Ecliptic Y -11.79090000 +/- 0.0000 Ecliptic Z -0.01255173 +/- 0.0000 Ecliptic XDOT 0.00073516 +/- 0.0000 Ecliptic YDOT 0.00245046 +/- 0.0000 Ecliptic ZDOT -0.00057631 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 42.32134809 +/- 0.0000 Geocenter to KBO 41.31362895 +/- 0.0000 # Hcoef: 7.00
The following table shows the complete astrometric record for 385191. 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 (385191) followed by the observatory code and reference code for the source of the astrometry.
1997 09 06.95833 23 00 21.29 -06 23 04.2 23.0R 385191 950 C30629 1997 09 06.99889 23 00 21.10 -06 23 05.5 385191 950 C30629 1997 09 07.06715 23 00 20.79 -06 23 07.6 385191 950 C30629 1997 09 07.08670 23 00 20.74 -06 23 08.5 385191 950 C30629 1997 09 07.10470 23 00 20.63 -06 23 08.6 385191 950 C30629 1997 09 07.28714 23 00 19.84 -06 23 14.3 385191 675 C30579 1997 09 07.42352 23 00 19.23 -06 23 18.4 385191 675 C30579 1997 09 08.25432 23 00 15.57 -06 23 44.1 385191 675 C30579 1997 09 08.38924 23 00 14.96 -06 23 48.2 385191 675 C30579 1997 09 10.00484 23 00 07.88 -06 24 36.7 385191 950 C30629 1997 09 10.02200 23 00 07.80 -06 24 37.7 385191 950 C30629 1997 09 10.04023 23 00 07.70 -06 24 38.8 385191 950 C30629 1997 09 23.25225 22 59 10.69 -06 31 12.9 385191 568 Ca0019 1997 09 23.28191 22 59 10.58 -06 31 13.2 385191 568 Ca0019 1997 09 24.28318 22 59 06.41 -06 31 42.5 385191 568 Ca0019 1997 09 24.34705 22 59 06.11 -06 31 44.5 385191 568 Ca0019 1997 09 27.13999 22 58 54.64 -06 33 05.2 385191 696 Ca0019 1997 09 27.25406 22 58 54.17 -06 33 07.6 22.9R 385191 696 Ca0019 1997 10 05.15420 22 58 23.30 -06 36 43.5 385191 675 Ca0019 1997 10 05.22851 22 58 23.03 -06 36 45.0 23.2R 385191 675 Ca0019 1997 10 05.29484 22 58 22.79 -06 36 46.8 385191 675 Ca0019 1997 10 27.19579 22 57 14.07 -06 44 56.9 385191 675 Ca0287 1997 10 27.21109 22 57 14.03 -06 44 57.4 385191 675 Ca0287 1997 10 27.22388 22 57 13.99 -06 44 57.5 385191 675 Ca0287 1998 05 29.54402 23 09 10.01 -05 41 22.5 385191 568 Ca1238 1998 05 29.56914 23 09 10.04 -05 41 22.1 385191 568 Ca1238 1998 05 29.59532 23 09 10.09 -05 41 21.7 385191 568 Ca1238 1998 05 29.61889 23 09 10.13 -05 41 21.8 385191 568 Ca1238 1998 05 30.54913 23 09 11.60 -05 41 15.7 385191 568 Ca1238 1998 05 30.57946 23 09 11.63 -05 41 15.7 23.6R 385191 568 Ca1238 1999 08 09.46958 23 12 52.04 -05 41 03.8 385191 675 Ca7284 1999 08 09.48930 23 12 51.99 -05 41 04.3 23.0R 385191 675 Ca7284 1999 11 30.14954 23 06 57.11 -06 23 20.1 23.1r 385191 695 Cq9067 1999 12 01.12499 23 06 57.30 -06 23 21.1 23.1r 385191 695 Cq9067 2000 08 03.33806 23 18 24.08 -05 24 34.1 385191 809 Cc2106 2000 08 07.32951 23 18 10.52 -05 26 16.0 23.0R 385191 809 Cb8917 2000 08 07.35782 23 18 10.42 -05 26 16.7 23.3R 385191 809 Cb8917 2000 08 07.39097 23 18 10.31 -05 26 17.5 23.4R 385191 809 Cb8917 2008 11 20.234895 23 53 14.32 -04 13 45.7 22.8V 385191 645 C~1dXj 2008 11 20.235725 23 53 14.32 -04 13 45.7 22.7V 385191 645 C~1dXj 2008 11 20.238213 23 53 14.31 -04 13 45.7 23.1V 385191 645 C~1dXj 2013 09 02.28036 00 24 00.974 -02 22 43.02 24.3g 385191 W84 C~51nt 2013 10 05.30978 00 21 41.01 -02 39 58.3 22.7R 385191 695 C~0zdB 2013 10 05.35453 00 21 40.80 -02 39 59.7 385191 695 C~0zdB 2013 10 06.32898 00 21 36.55 -02 40 28.9 385191 695 C~0zdB 2013 10 13.16024 00 21 07.185 -02 43 47.68 22.7i 385191 W84 C~51nt 2013 10 13.16024 00 21 07.18 -02 43 47.7 22.9i 385191 W84 C~3hZv 2013 10 13.16306 00 21 07.187 -02 43 47.64 22.2z 385191 W84 C~51nt 2013 10 13.16306 00 21 07.18 -02 43 47.7 22.7z 385191 W84 C~3hZv 2013 11 22.110567 00 18 52.36 -02 57 22.4 385191 W84 C~3hZv 2013 11 22.11058 00 18 52.364 -02 57 22.38 23.2r 385191 W84 C~51nt 2013 11 22.11058 00 18 52.36 -02 57 22.4 23.3r 385191 W84 C~3hZv 2013 11 22.11478 00 18 52.355 -02 57 22.46 23.1i 385191 W84 C~51nt 2013 11 22.11478 00 18 52.36 -02 57 22.5 23.2i 385191 W84 C~3hZv 2013 11 22.140752 00 18 52.30 -02 57 22.5 385191 W84 C~3hZv 2013 11 23.11341 00 18 50.240 -02 57 32.94 22.9r 385191 W84 C~51nt 2013 11 23.11341 00 18 50.24 -02 57 32.9 23.3r 385191 W84 C~3hZv 2013 11 23.11482 00 18 50.24 -02 57 32.8 23.1i 385191 W84 C~3hZv 2014 08 18.30277 00 30 02.532 -01 59 36.69 23.3i 385191 W84 C~51nt 2014 08 18.30277 00 30 02.53 -01 59 36.7 23.4i 385191 W84 C~3hZv 2014 10 28.19972 00 25 17.53 -02 34 29.7 23.3r 385191 W84 C~3hZv 2014 11 14.11983 00 24 20.859 -02 40 01.44 23.5r 385191 W84 C~51nt 2014 11 14.11983 00 24 20.86 -02 40 01.4 23.8r 385191 W84 C~3hZv 2017 10 20.16631 00 41 17.105 -01 43 50.84 23.0i 385191 W84 C~51nt 2017 10 27.14514 00 40 48.359 -01 46 50.29 22.5z 385191 W84 C~51nt 2018 10 19.14929 00 46 32.253 -01 27 19.86 23.0z 385191 W84 C~51nt 2018 11 08.17949 00 45 12.805 -01 35 17.15 22.9r 385191 W84 C~51nt 2018 11 08.18087 00 45 12.792 -01 35 17.13 22.6i 385191 W84 C~51nt 2018 11 27.08311 00 44 16.569 -01 39 58.49 23.8g 385191 W84 C~51nt 2022 10 31.04735 01 06 24.26 -00 27 56.9 23.9r 385191 W84 C~62Ui 2022 10 31.07387 01 06 24.14 -00 27 57.5 23.5r 385191 W84 C~62Ui 2022 10 31.12737 01 06 23.92 -00 27 58.7 23.5r 385191 W84 C~62Ui 2022 10 31.15435 01 06 23.80 -00 27 59.4 23.4r 385191 W84 C~62Ui
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 0.22 0.00 -0.01
2 0.0001 0.00 0.10 0.00 -0.07
3 0.0003 0.00 0.05 0.00 -0.09
4 0.0004 0.00 0.62 0.00 -0.39
5 0.0004 0.00 0.18 0.00 0.05
6 0.0009 0.00 0.29 0.00 -0.07
7 0.0013 0.00 0.31 0.00 -0.01
8 0.0035 0.00 0.20 0.00 -0.38
9 0.0039 0.00 0.12 0.00 -0.37
10 0.0083 0.00 0.54 0.00 0.31
11 0.0084 0.00 0.50 0.00 -0.17
12 0.0084 0.00 0.22 0.00 -0.72
13 0.0446 0.00 -0.36 0.00 -0.49
14 0.0447 0.00 -0.13 0.00 0.07
15 0.0474 0.00 -0.08 0.00 -0.28
16 0.0476 0.00 -0.53 0.00 -0.44
17 0.0553 0.00 -0.48 0.00 -1.38
18 0.0556 0.00 -0.46 0.00 -0.55
19 0.0772 0.00 0.22 0.00 -0.72
20 0.0774 0.00 0.43 0.00 -0.26
21 0.0776 0.00 0.63 0.00 -0.32
22 0.1375 0.00 -0.05 0.00 0.80
23 0.1376 0.00 -0.07 0.00 0.58
24 0.1376 0.00 -0.19 0.00 0.71
25 0.7244 0.00 -0.24 0.00 0.05
26 0.7245 0.00 -0.38 0.00 0.28
27 0.7245 0.00 -0.24 0.00 0.51
28 0.7246 0.00 -0.18 0.00 0.25
29 0.7271 0.00 -0.06 0.00 0.33
30 0.7272 0.00 -0.29 0.00 0.14
31 1.9206 0.00 -0.81 0.00 -0.01
32 1.9207 0.00 -0.46 0.00 0.02
33 2.2291 0.00 0.06 0.00 0.03
34 2.2318 0.00 0.06 0.00 -0.19
35 2.9059 0.00 -0.34 0.00 0.95
36 2.9168 0.00 -0.15 0.00 0.71
37 2.9169 0.00 -0.13 0.00 0.75
38 2.9170 0.00 -0.00 0.00 0.82
39 11.2040 0.00 0.17 0.00 -0.23
40 11.2040 0.00 0.20 0.00 -0.22
41 11.2041 0.00 0.11 0.00 -0.20
42 15.9872 0.00 0.23 0.00 0.17
43 16.0776 0.00 0.11 0.00 0.45
44 16.0777 0.00 -0.06 0.00 0.40
45 16.0804 0.00 -0.10 0.00 0.39
46 16.0991 0.00 -0.05 0.00 -0.04
47 16.0991 0.00 0.02 0.00 -0.02
48 16.0991 0.00 0.13 0.00 0.04
49 16.0991 0.00 0.24 0.00 0.10
50 16.2085 0.00 -0.18 0.00 -0.05
51 16.2085 0.00 -0.17 0.00 -0.05
52 16.2085 0.00 -0.11 0.00 -0.03
53 16.2085 0.00 -0.03 0.00 -0.10
54 16.2085 0.00 -0.11 0.00 -0.06
55 16.2086 0.00 -0.07 0.00 0.17
56 16.2112 0.00 -0.08 0.00 -0.17
57 16.2112 0.00 -0.08 0.00 -0.21
58 16.2112 0.00 -0.04 0.00 -0.05
59 16.9455 0.00 0.21 0.00 0.05
60 16.9455 0.00 0.24 0.00 0.06
61 17.1396 0.00 0.04 0.00 0.01
62 17.1859 0.00 0.03 0.00 0.01
63 17.1859 0.00 0.02 0.00 -0.03
64 20.1183 0.00 0.09 0.00 -0.07
65 20.1374 0.00 -0.06 0.00 -0.10
66 21.1148 0.00 0.00 0.00 -0.46
67 21.1697 0.00 0.07 0.00 -0.13
68 21.1697 0.00 -0.05 0.00 -0.08
69 21.2214 0.00 -0.06 0.00 -0.12
70 25.1474 0.00 0.04 0.00 -0.06
71 25.1475 0.00 -0.08 0.00 -0.02
72 25.1476 0.00 -0.00 0.00 0.06
73 25.1477 0.00 -0.10 0.00 0.01
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.
385191 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 41.556 41.556 41.556 ecceobj 0.019 0.019 0.019 incobj 12.704 12.704 12.704 qmin 39.502 39.502 39.502 qmax 43.390 43.388 43.396 amean 41.369 41.369 41.369 amin 41.063 41.063 41.064 amax 41.679 41.679 41.679 emean 0.025 0.025 0.025 emin 0.009 0.009 0.009 emax 0.042 0.042 0.042 imean 12.688 12.688 12.688 imin 11.720 11.720 11.720 imax 13.626 13.626 13.626 excite_mean 0.221 0.221 0.221 fracstop 1.000 1.000 1.000 cjmean 3.014 3.014 3.014 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 175.4 175.4 175.4 kozaiamp 180.0 180.0 180.0