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: 385199 # Created Sun Nov 24 02:07:00 2024 # Orbit generated by ELGB # -->Covariance matrix from a Bernstein fit # Fitting 50 observations of 50 # Arc: 22.21y # First observation: 1999/07/20 # Last observation: 2021/10/03 # Chi-squared of fit: 61.57 DOF: 94 RMS: 0.20 # Min/Max residuals: -0.46 0.49 # Exact a, adot, b, bdot, g, gdot: 1.539562E-05 2.284754E-02 6.484969E-07 -8.541568E-04 2.350870E-02 -3.153203E-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 -0.201232 -43.425390 0.340358 -0.003588 -0.955075 2451380.033203 # Heliocentric elements and errors Epoch: 2451380.5000 = 1999/07/21 Mean Anomaly: 333.07522 +/- 0.000 Argument of Peri: 215.02628 +/- 0.000 Long of Asc Node: 130.88421 +/- 0.000 Inclination: 2.14841 +/- 0.000 Eccentricity: 0.05169330 +/- 0.0000 Semi-Major Axis: 45.57208695 +/- 0.0000 Time of Perihelion: 2459784.7032 +/- 0.0 Perihelion: 43.21631535 +/- 0.0000 Aphelion: 47.92785855 +/- 0.0000 Period (y) 307.6498 +/- 0.00 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.36149140 +/- 0.0000 Ecliptic Y -30.14223809 +/- 0.0000 Ecliptic Z -0.14935552 +/- 0.0000 Ecliptic XDOT 0.00179872 +/- 0.0000 Ecliptic YDOT 0.00196649 +/- 0.0000 Ecliptic ZDOT -0.00009930 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.49852139 +/- 0.0000 Geocenter to KBO 42.53748102 +/- 0.0000 # Hcoef: 6.34
The following table shows the complete astrometric record for 385199. 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 (385199) followed by the observatory code and reference code for the source of the astrometry.
1999 07 20.53246 21 16 22.12 -16 03 38.7 22.9R 385199 568 Ca6755 1999 07 20.56054 21 16 21.99 -16 03 39.3 385199 568 Ca6755 1999 07 20.58760 21 16 21.88 -16 03 39.7 385199 568 Ca6755 1999 08 06.23268 21 15 07.64 -16 09 25.1 385199 807 Ca6755 1999 08 06.23836 21 15 07.61 -16 09 25.4 385199 807 Ca6755 1999 08 07.14731 21 15 03.44 -16 09 44.6 385199 807 Ca6755 1999 08 07.15300 21 15 03.41 -16 09 44.7 385199 807 Ca6755 1999 08 07.15868 21 15 03.39 -16 09 44.6 385199 807 Ca6755 1999 08 07.33004 21 15 02.61 -16 09 48.3 385199 807 Ca6755 1999 08 07.33572 21 15 02.53 -16 09 48.4 385199 807 Ca6755 1999 08 07.34140 21 15 02.51 -16 09 48.7 385199 807 Ca6755 2000 08 05.49787 21 20 23.50 -15 48 26.6 385199 568 Cb9102 2000 08 05.53971 21 20 23.31 -15 48 27.3 22.1R 385199 568 Cb9102 2000 08 06.44478 21 20 19.16 -15 48 46.4 22.7R 385199 568 Cb9102 2000 08 06.48713 21 20 18.96 -15 48 47.4 385199 568 Cb9102 2000 08 06.52918 21 20 18.76 -15 48 48.5 385199 568 Cb9102 2000 09 23.27096 21 17 03.48 -16 04 02.8 23.1R 385199 568 Cb9102 2000 09 23.31927 21 17 03.32 -16 04 03.4 23.0R 385199 568 Cb9102 2000 09 23.36754 21 17 03.15 -16 04 04.1 385199 568 Cb9102 2001 07 23.38921 21 26 37.283 -15 22 11.16 385199 568 Cl5164 2001 07 23.45797 21 26 36.956 -15 22 12.82 385199 568 Cl5164 2001 07 25.52128 21 26 28.06 -15 22 56.4 23.5R 385199 568 Cd2765 2001 07 25.55535 21 26 27.91 -15 22 57.2 22.9R 385199 568 Cd2765 2001 07 25.59235 21 26 27.80 -15 22 57.4 23.5R 385199 568 Cd2765 2001 07 26.54551 21 26 23.61 -15 23 18.1 385199 568 Cd2765 2002 07 06.37425 21 32 56.84 -14 54 36.4 23.2R 385199 695 Cf8736 2002 07 06.41674 21 32 56.69 -14 54 37.1 23.5R 385199 695 Cf8736 2002 07 06.45235 21 32 56.57 -14 54 37.8 23.5R 385199 695 Cf8736 2003 08 24.17568 21 34 43.13 -14 49 31.4 22.0R 385199 807 Ci3189 2003 08 25.10841 21 34 38.95 -14 49 52.1 385199 807 Ci3189 2003 08 25.18963 21 34 38.60 -14 49 54.0 385199 807 Ci3189 2013 08 07.180389 22 27 24.71 -10 36 28.9 21.6r 385199 W84 C~26aX 2013 08 07.192167 22 27 24.67 -10 36 29.1 21.8r 385199 W84 C~26aX 2013 08 07.205531 22 27 24.60 -10 36 29.4 21.6r 385199 W84 C~26aX 2013 08 07.219214 22 27 24.54 -10 36 29.7 21.5r 385199 W84 C~26aX 2013 08 07.227314 22 27 24.53 -10 36 29.9 21.4r 385199 W84 C~26aX 2013 08 07.245009 22 27 24.44 -10 36 30.4 21.4r 385199 W84 C~26aX 2013 08 07.247667 22 27 24.42 -10 36 30.5 21.3r 385199 W84 C~26aX 2013 08 07.281708 22 27 24.29 -10 36 31.5 21.7r 385199 W84 C~26aX 2013 08 07.295231 22 27 24.26 -10 36 31.8 21.7r 385199 W84 C~26aX 2013 10 06.25495 22 23 17.70 -11 00 27.3 22.7R 385199 695 C~0zdB 2013 10 07.17459 22 23 14.77 -11 00 43.6 385199 695 C~0zdB 2015 05 27.35110 22 39 36.17 -09 28 40.3 24.1V 385199 W84 C~1Ua0 2015 05 27.37257 22 39 36.20 -09 28 40.2 385199 W84 C~1Ua0 2015 05 27.41554 22 39 36.22 -09 28 40.1 385199 W84 C~1Ua0 2015 05 27.44046 22 39 36.24 -09 28 39.9 385199 W84 C~1Ua0 2015 05 28.34896 22 39 37.23 -09 28 35.9 385199 W84 C~1Ua0 2021 10 03.123640 23 03 39.230 -07 21 06.65 23.1G 385199 G37 C~590c 2021 10 03.176830 23 03 39.015 -07 21 07.93 385199 G37 C~590c 2021 10 03.229820 23 03 38.813 -07 21 09.09 385199 G37 C~590c
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 0.07 0.00 -0.24
2 0.0001 0.00 -0.04 0.00 -0.28
3 0.0002 0.00 0.07 0.00 -0.15
4 0.0457 0.00 0.24 0.00 0.11
5 0.0457 0.00 0.19 0.00 -0.07
6 0.0482 0.00 0.03 0.00 0.02
7 0.0482 0.00 -0.02 0.00 0.04
8 0.0483 0.00 0.07 0.00 0.26
9 0.0487 0.00 0.35 0.00 0.19
10 0.0487 0.00 -0.46 0.00 0.21
11 0.0488 0.00 -0.36 0.00 0.03
12 1.0458 0.00 0.18 0.00 -0.29
13 1.0459 0.00 0.24 0.00 -0.10
14 1.0484 0.00 -0.16 0.00 0.39
15 1.0485 0.00 -0.20 0.00 0.31
16 1.0486 0.00 -0.27 0.00 0.11
17 1.1793 0.00 0.12 0.00 -0.03
18 1.1794 0.00 -0.02 0.00 0.05
19 1.1796 0.00 -0.31 0.00 0.02
20 2.0092 0.00 0.36 0.00 0.13
21 2.0094 0.00 -0.06 0.00 -0.08
22 2.0150 0.00 -0.31 0.00 -0.22
23 2.0151 0.00 -0.30 0.00 -0.30
24 2.0152 0.00 0.49 0.00 0.28
25 2.0178 0.00 -0.30 0.00 -0.17
26 2.9619 0.00 0.10 0.00 0.13
27 2.9620 0.00 0.09 0.00 0.18
28 2.9621 0.00 0.18 0.00 0.11
29 4.0948 0.00 0.15 0.00 -0.22
30 4.0974 0.00 -0.18 0.00 -0.14
31 4.0976 0.00 0.09 0.00 -0.23
32 14.0497 0.00 0.05 0.00 -0.17
33 14.0497 0.00 0.18 0.00 -0.08
34 14.0498 0.00 -0.04 0.00 -0.05
35 14.0498 0.00 -0.09 0.00 -0.02
36 14.0498 0.00 0.27 0.00 -0.02
37 14.0499 0.00 0.02 0.00 -0.08
38 14.0499 0.00 -0.11 0.00 -0.12
39 14.0500 0.00 0.06 0.00 -0.28
40 14.0500 0.00 0.45 0.00 -0.25
41 14.2142 0.00 -0.07 0.00 0.20
42 14.2167 0.00 -0.08 0.00 0.35
43 15.8517 0.00 -0.05 0.00 0.10
44 15.8517 0.00 0.07 0.00 0.10
45 15.8518 0.00 -0.29 0.00 0.00
46 15.8519 0.00 -0.37 0.00 0.09
47 15.8544 0.00 0.06 0.00 0.09
48 22.2056 0.00 0.05 0.00 0.03
49 22.2057 0.00 -0.06 0.00 0.01
50 22.2059 0.00 0.02 0.00 0.09
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.
385199 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.493 45.493 45.493 ecceobj 0.050 0.050 0.050 incobj 2.149 2.149 2.149 qmin 42.461 42.465 42.461 qmax 48.552 48.541 48.557 amean 45.414 45.414 45.414 amin 45.046 45.050 45.049 amax 45.787 45.787 45.791 emean 0.048 0.048 0.048 emin 0.034 0.034 0.034 emax 0.061 0.060 0.061 imean 1.387 1.387 1.387 imin 0.890 0.890 0.890 imax 1.801 1.801 1.800 excite_mean 0.054 0.054 0.054 fracstop 1.000 1.000 1.000 cjmean 3.115 3.115 3.115 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 178.4 178.3 178.4 kozaiamp 179.9 180.0 179.9