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: 38083
# Created Wed Dec 25 02:06:41 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 79 observations of 79
# Arc: 21.09y
# First observation: 1999/03/20
# Last observation: 2020/04/21
# Chi-squared of fit: 190.37 DOF: 152 RMS: 0.27
# Min/Max residuals: -0.78 1.68
# Exact a, adot, b, bdot, g, gdot:
1.548371E-05 2.652859E-02 -1.477504E-06 -5.953755E-03 2.683247E-02 4.242185E-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
1.769191 -177.555670 0.055287 0.030704 -1.002025 2451257.808648
# Heliocentric elements and errors
Epoch: 2451258.5000 = 1999/03/21
Mean Anomaly: 76.24624 +/- 0.000
Argument of Peri: 78.20547 +/- 0.000
Long of Asc Node: 9.97587 +/- 0.000
Inclination: 12.79296 +/- 0.000
Eccentricity: 0.15460637 +/- 0.0000
Semi-Major Axis: 38.77745988 +/- 0.0000
Time of Perihelion: 2432578.2196 +/- 0.0
Perihelion: 32.78221755 +/- 0.0000
Aphelion: 44.77270220 +/- 0.0000
Period (y) 241.4778 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.21232079 +/- 0.0000
Ecliptic Y -1.57637241 +/- 0.0000
Ecliptic Z 1.15056475 +/- 0.0000
Ecliptic XDOT -0.00033769 +/- 0.0000
Ecliptic YDOT -0.00271476 +/- 0.0000
Ecliptic ZDOT -0.00059382 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 38.26203249 +/- 0.0000
Geocenter to KBO 37.26822022 +/- 0.0000
# Hcoef: 7.00
The following table shows the complete astrometric record for 38083. 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 (38083) followed by the observatory code and reference code for the source of the astrometry.
1999 03 20.307905 12 11 47.04 +00 39 05.1 38083 645 C~1egA 1999 03 20.308322 12 11 47.04 +00 39 05.2 38083 645 C~1egA 1999 03 20.308727 12 11 47.03 +00 39 05.2 38083 645 C~1egA 1999 03 20.309144 12 11 47.03 +00 39 05.2 38083 645 C~1egA 1999 03 20.311215 12 11 47.03 +00 39 05.3 38083 645 C~1egA 1999 03 20.311632 12 11 47.02 +00 39 05.3 38083 645 C~1egA 1999 04 17.13881 12 09 31.63 +00 51 49.1 22.4R 38083 695 Ca4930 1999 04 17.18654 12 09 31.39 +00 51 50.3 38083 695 Ca4930 1999 04 17.26738 12 09 30.98 +00 51 52.0 38083 695 Ca4930 1999 04 18.17345 12 09 26.97 +00 52 13.9 38083 695 Ca4930 1999 05 05.88205 12 08 16.39 +00 58 18.2 38083 950 Ca4930 1999 05 05.94278 12 08 16.18 +00 58 18.4 38083 950 Ca4930 1999 05 06.00443 12 08 15.94 +00 58 20.2 38083 950 Ca4930 1999 05 07.01150 12 08 12.64 +00 58 36.6 38083 950 Ca4930 1999 05 07.04517 12 08 12.43 +00 58 37.4 38083 950 Ca4930 2000 06 23.88846 12 11 59.83 +00 07 23.0 38083 950 Cb6477 2000 06 24.89813 12 12 00.62 +00 07 12.4 38083 950 Cb6477 2000 06 25.89070 12 12 01.47 +00 07 01.2 38083 950 Cb6477 2001 02 16.16225 12 24 05.58 -01 23 31.8 22.5R 38083 950 Cc6426 2001 02 16.20072 12 24 05.44 -01 23 31.0 23.1R 38083 950 Cc6426 2001 03 24.11944 12 21 23.41 -01 07 47.6 20.8 38083 304 Cf1478 2001 03 24.15373 12 21 23.23 -01 07 46.8 38083 304 Cf1478 2001 05 19.28213 12 17 28.44 -00 46 31.6 22.6R 38083 568 Ce6450 2001 05 20.27983 12 17 25.88 -00 46 19.9 38083 568 Ce6450 2001 05 20.36542 12 17 25.66 -00 46 19.0 38083 568 Ce6450 2002 02 06.54211 12 29 31.10 -02 19 57.6 22.9R 38083 568 Cf1478 2002 02 06.60974 12 29 30.89 -02 19 56.7 38083 568 Cf1478 2004 01 25.20698 12 39 37.99 -04 07 03.9 22.7V 38083 J86 Cj8325 2004 01 25.21757 12 39 38.01 -04 07 04.1 23.1V 38083 J86 Cj8325 2004 01 25.22106 12 39 37.96 -04 07 04.0 23.4V 38083 J86 Cj8325 2004 01 28.29015 12 39 32.98 -04 06 41.6 38083 809 Cj8325 2004 01 28.33801 12 39 32.90 -04 06 41.3 38083 809 Cj8325 2008 06 07.00761 12 50 23.77 -06 46 11.1 38083 807 Cz1541 2008 06 07.10413 12 50 23.58 -06 46 10.7 38083 807 Cz1541 2011 04 03.440157 13 08 44.194 -09 38 05.63 22.8G 38083 F51 C~41a0 2011 04 03.454061 13 08 44.097 -09 38 05.53 23.6G 38083 F51 C~41a0 2011 04 03.469908 13 08 44.042 -09 38 05.43 22.8G 38083 F51 C~41a0 2011 04 03.483773 13 08 43.974 -09 38 04.76 22.5G 38083 F51 C~41a0 2011 04 28.360475 13 06 44.519 -09 27 10.75 20.8G 38083 F51 C~41a0 2011 04 28.374720 13 06 44.467 -09 27 10.08 22.6G 38083 F51 C~41a0 2011 04 28.388836 13 06 44.390 -09 27 09.74 22.6G 38083 F51 C~41a0 2012 04 16.393629 13 12 18.798 -10 20 23.48 23.0G 38083 F51 C~41a0 2012 04 16.406835 13 12 18.726 -10 20 22.90 22.6G 38083 F51 C~41a0 2012 04 16.420043 13 12 18.661 -10 20 22.60 22.7G 38083 F51 C~41a0 2012 04 16.433284 13 12 18.605 -10 20 22.28 23.3G 38083 F51 C~41a0 2013 03 17.27849 13 19 23.85 -11 20 19.4 23.2r 38083 W84 C~2JKZ 2013 03 17.32141 13 19 23.66 -11 20 18.5 38083 W84 C~2JKZ 2013 03 17.36897 13 19 23.45 -11 20 17.6 38083 W84 C~2JKZ 2014 02 25.593869 13 25 18.885 -12 12 23.17 23.3G 38083 F51 C~41a0 2014 04 28.460402 13 20 45.243 -11 50 15.40 23.5G 38083 F51 C~41a0 2014 05 20.328400 13 19 12.747 -11 41 28.89 23.0G 38083 F51 C~41a0 2015 01 24.644966 13 30 50.613 -12 59 05.46 22.7G 38083 F51 C~41a0 2015 01 26.605370 13 30 50.134 -12 59 19.26 23.4G 38083 F51 C~41a0 2016 02 09.660559 13 35 13.109 -13 44 49.09 23.6G 38083 F51 C~41a0 2016 03 04.573419 13 34 12.055 -13 42 09.34 22.8G 38083 F51 C~41a0 2016 04 03.441821 13 32 05.129 -13 32 57.94 23.1G 38083 F51 C~41a0 2017 03 28.538426 13 37 14.672 -14 20 23.14 24.2G 38083 F51 C~41a0 2018 03 17.547505 13 42 43.886 -15 08 15.04 23.5G 38083 F51 C~41a0 2018 04 12.412086 13 40 45.566 -14 59 32.69 20.9G 38083 F51 C~41a0 2019 01 14.651978 13 49 02.186 -15 51 25.25 23.2G 38083 F51 C~41a0 2019 02 04.614397 13 49 07.834 -15 55 24.02 23.2G 38083 F51 C~41a0 2019 04 03.462248 13 46 10.226 -15 46 52.74 22.9G 38083 F51 C~41a0 2019 04 03.474041 13 46 10.166 -15 46 52.13 22.7G 38083 F51 C~41a0 2019 04 03.485814 13 46 10.112 -15 46 52.09 22.9G 38083 F51 C~41a0 2019 04 03.497623 13 46 10.069 -15 46 51.87 23.0G 38083 F51 C~41a0 2019 04 06.448264 13 45 56.036 -15 45 49.69 23.2G 38083 F51 C~41a0 2019 04 06.472813 13 45 55.912 -15 45 48.69 23.2G 38083 F51 C~41a0 2019 04 06.485109 13 45 55.878 -15 45 48.34 22.3G 38083 F51 C~41a0 2019 04 08.443208 13 45 46.484 -15 45 06.18 23.3G 38083 F51 C~41a0 2019 04 08.454172 13 45 46.455 -15 45 05.45 22.5G 38083 F51 C~41a0 2019 04 08.465145 13 45 46.395 -15 45 05.56 23.5G 38083 F51 C~41a0 2019 05 02.351582 13 43 50.200 -15 35 35.45 23.4G 38083 F51 C~41a0 2019 05 27.289425 13 42 03.256 -15 25 41.88 22.8G 38083 F51 C~41a0 2019 05 31.350956 13 41 48.838 -15 24 15.01 23.9G 38083 F51 C~41a0 2019 06 30.311731 13 40 39.973 -15 16 22.70 23.9G 38083 F51 C~41a0 2020 04 21.368081 13 49 19.961 -16 23 10.76 22.5G 38083 F51 C~41a0 2020 04 21.380089 13 49 19.907 -16 23 10.42 22.9G 38083 F51 C~41a0 2020 04 21.392126 13 49 19.867 -16 23 09.97 22.1G 38083 F51 C~41a0 2020 04 21.404120 13 49 19.776 -16 23 09.73 22.4G 38083 F51 C~41a0
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 -0.14 0.00 -0.40
2 0.0000 0.00 -0.11 0.00 -0.31
3 0.0000 0.00 -0.23 0.00 -0.32
4 0.0000 0.00 -0.19 0.00 -0.33
5 0.0000 0.00 -0.04 0.00 -0.29
6 0.0000 0.00 -0.15 0.00 -0.31
7 0.0762 0.00 0.24 0.00 0.30
8 0.0763 0.00 -0.08 0.00 0.34
9 0.0765 0.00 -0.68 0.00 0.07
10 0.0790 0.00 -0.12 0.00 0.10
11 0.1275 0.00 -0.00 0.00 0.27
12 0.1277 0.00 0.06 0.00 -0.55
13 0.1278 0.00 -0.28 0.00 0.23
14 0.1306 0.00 1.68 0.00 0.09
15 0.1307 0.00 0.27 0.00 0.34
16 1.2637 0.00 -0.27 0.00 0.03
17 1.2665 0.00 -0.08 0.00 0.33
18 1.2692 0.00 -0.21 0.00 0.44
19 1.9134 0.00 -0.02 0.00 0.10
20 1.9135 0.00 0.05 0.00 0.08
21 2.0118 0.00 0.14 0.00 0.29
22 2.0119 0.00 0.04 0.00 0.10
23 2.1656 0.00 0.20 0.00 0.13
24 2.1683 0.00 0.15 0.00 0.27
25 2.1685 0.00 0.19 0.00 0.20
26 2.8863 0.00 -0.10 0.00 -0.61
27 2.8865 0.00 -0.27 0.00 -0.78
28 4.8512 0.00 -0.15 0.00 0.25
29 4.8512 0.00 0.40 0.00 -0.01
30 4.8512 0.00 -0.27 0.00 0.07
31 4.8596 0.00 0.20 0.00 0.26
32 4.8598 0.00 0.33 0.00 0.18
33 9.2175 0.00 0.31 0.00 0.67
34 9.2178 0.00 0.15 0.00 0.13
35 12.0387 0.00 0.02 0.00 0.13
36 12.0387 0.00 -0.40 0.00 -0.13
37 12.0388 0.00 -0.05 0.00 -0.44
38 12.0388 0.00 -0.04 0.00 -0.13
39 12.1069 0.00 0.08 0.00 -0.50
40 12.1070 0.00 0.30 0.00 -0.19
41 12.1070 0.00 0.13 0.00 -0.21
42 13.0762 0.00 -0.13 0.00 -0.23
43 13.0762 0.00 -0.23 0.00 -0.00
44 13.0763 0.00 -0.23 0.00 -0.05
45 13.0763 0.00 -0.09 0.00 -0.08
46 13.9931 0.00 -0.00 0.00 -0.13
47 13.9932 0.00 0.01 0.00 -0.12
48 13.9933 0.00 0.02 0.00 -0.20
49 14.9385 0.00 -0.14 0.00 -0.11
50 15.1079 0.00 -0.25 0.00 0.13
51 15.1677 0.00 0.04 0.00 0.13
52 15.8503 0.00 -0.42 0.00 0.15
53 15.8557 0.00 -0.17 0.00 -0.10
54 16.8935 0.00 -0.15 0.00 -0.13
55 16.9590 0.00 0.19 0.00 -0.03
56 17.0408 0.00 -0.32 0.00 -0.09
57 18.0239 0.00 -0.18 0.00 0.08
58 18.9931 0.00 0.17 0.00 -0.27
59 19.0639 0.00 0.09 0.00 -0.27
60 19.8230 0.00 0.26 0.00 0.33
61 19.8804 0.00 0.11 0.00 0.20
62 20.0388 0.00 0.07 0.00 -0.15
63 20.0388 0.00 0.02 0.00 0.21
64 20.0388 0.00 0.05 0.00 0.01
65 20.0388 0.00 0.26 0.00 -0.02
66 20.0469 0.00 -0.37 0.00 -0.19
67 20.0470 0.00 -0.44 0.00 0.28
68 20.0470 0.00 -0.05 0.00 0.36
69 20.0524 0.00 -0.07 0.00 -0.10
70 20.0524 0.00 0.30 0.00 0.39
71 20.0524 0.00 0.21 0.00 0.04
72 20.1178 0.00 0.03 0.00 0.15
73 20.1861 0.00 -0.09 0.00 -0.29
74 20.1972 0.00 0.16 0.00 -0.21
75 20.2793 0.00 -0.24 0.00 0.05
76 21.0898 0.00 0.06 0.00 0.01
77 21.0899 0.00 0.15 0.00 0.06
78 21.0899 0.00 0.45 0.00 0.23
79 21.0899 0.00 -0.01 0.00 0.18
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.
38083 quality flag:2 Type: SCATNEAR SCATEXTD SCATNEAR axisobj 38.827 38.827 38.827 ecceobj 0.156 0.156 0.156 incobj 12.787 12.787 12.787 qmin 32.235 32.575 32.207 qmax 47.145 46.146 46.699 amean 39.147 39.107 39.127 amin 38.762 38.770 38.767 amax 40.101 39.547 39.623 emean 0.137 0.102 0.133 emin 0.098 0.046 0.095 emax 0.178 0.168 0.179 imean 17.377 17.095 17.182 imin 13.028 13.028 13.028 imax 19.662 19.385 19.518 excite_mean 0.329 0.313 0.325 fracstop 1.000 1.000 1.000 cjmean 2.918 2.933 2.922 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 180.3 182.1 179.5 kozaiamp 179.9 180.0 180.0