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: 444018
# Created Wed Dec 25 02:07:02 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 44 observations of 44
# Arc: 12.95y
# First observation: 2004/03/15
# Last observation: 2017/02/24
# Chi-squared of fit: 20.79 DOF: 82 RMS: 0.12
# Min/Max residuals: -0.32 0.38
# Exact a, adot, b, bdot, g, gdot:
1.614525E-05 2.383394E-02 -3.457431E-07 -8.729463E-04 2.415808E-02 5.404361E-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
1.953070 -156.405561 0.470135 0.029761 -0.871620 2453079.959363
# Heliocentric elements and errors
Epoch: 2453080.5000 = 2004/03/16
Mean Anomaly: 15.06571 +/- 0.000
Argument of Peri: 120.63380 +/- 0.000
Long of Asc Node: 65.63996 +/- 0.000
Inclination: 2.81969 +/- 0.000
Eccentricity: 0.04988946 +/- 0.0000
Semi-Major Axis: 44.40178128 +/- 0.0000
Time of Perihelion: 2448557.9225 +/- 0.0
Perihelion: 42.18660049 +/- 0.0000
Aphelion: 46.61696206 +/- 0.0000
Period (y) 295.8754 +/- 0.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -38.90235115 +/- 0.0000
Ecliptic Y -16.47525790 +/- 0.0000
Ecliptic Z 1.41076433 +/- 0.0000
Ecliptic XDOT 0.00101848 +/- 0.0000
Ecliptic YDOT -0.00250793 +/- 0.0000
Ecliptic ZDOT -0.00009665 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 42.27075301 +/- 0.0000
Geocenter to KBO 41.39403114 +/- 0.0000
# Hcoef: 6.92
The following table shows the complete astrometric record for 444018. 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 (444018) followed by the observatory code and reference code for the source of the astrometry.
2004 03 15.45862 13 30 15.49 -07 20 44.0 22.7R 444018 695 Ck5138 2004 03 16.35252 13 30 12.06 -07 20 22.7 444018 695 Ck5138 2004 03 16.44820 13 30 11.70 -07 20 20.6 444018 695 Ck5138 2004 04 22.36991 13 27 31.00 -07 04 33.0 22.7R 444018 568 Ck9590 2004 04 22.43484 13 27 30.71 -07 04 31.4 444018 568 Ck9590 2004 05 14.31845 13 25 59.58 -06 56 05.5 22.8R 444018 568 Ck9590 2004 05 14.38008 13 25 59.35 -06 56 04.3 444018 568 Ck9590 2004 05 26.01552 13 25 19.16 -06 52 32.8 23.2R 444018 304 Ck9040 2004 05 26.04525 13 25 19.06 -06 52 32.3 444018 304 Ck9040 2005 05 09.17277 13 31 24.18 -07 31 02.2 21.8R 444018 807 Cn5357 2005 05 10.16739 13 31 20.16 -07 30 40.3 444018 807 Cn5357 2005 05 10.25167 13 31 19.83 -07 30 38.3 444018 807 Cn5357 2005 05 11.06058 13 31 16.59 -07 30 21.0 444018 807 Cn5357 2013 03 07.52919 14 16 30.688 -12 07 17.68 23.2r 444018 568 C~1XPw 2013 03 07.58437 14 16 30.536 -12 07 16.87 23.2r 444018 568 C~1XPw 2013 03 07.63858 14 16 30.397 -12 07 15.94 23.4r 444018 568 C~1XPw 2013 04 04.53075 14 14 51.272 -11 58 26.93 23.1r 444018 568 C~1XPw 2013 04 07.39123 14 14 39.006 -11 57 23.19 23.1r 444018 568 C~1XPw 2013 04 07.43502 14 14 38.804 -11 57 22.16 23.0r 444018 568 C~1XPw 2013 04 08.42366 14 14 34.508 -11 56 59.84 23.1r 444018 568 C~1XPw 2013 04 08.46889 14 14 34.298 -11 56 58.80 22.9r 444018 568 C~1XPw 2013 04 09.37047 14 14 30.352 -11 56 38.38 23.1r 444018 568 C~1XPw 2013 04 09.41358 14 14 30.155 -11 56 37.36 22.9r 444018 568 C~1XPw 2013 04 09.45659 14 14 29.968 -11 56 36.37 23.3r 444018 568 C~1XPw 2013 05 11.45828 14 12 04.289 -11 44 20.86 23.1r 444018 568 C~1XPw 2013 05 12.45620 14 11 59.890 -11 43 59.27 23.2r 444018 568 C~1XPw 2013 06 12.35550 14 10 04.368 -11 34 51.20 444018 568 C~1XPw 2013 07 04.31530 14 09 19.105 -11 31 48.00 23.3r 444018 568 C~1XPw 2013 07 06.32311 14 09 16.895 -11 31 41.75 23.2r 444018 568 C~1XPw 2014 02 24.57398 14 22 02.609 -12 39 13.80 23.4r 444018 568 C~1XPw 2014 02 25.54358 14 22 00.949 -12 39 04.16 23.1r 444018 568 C~1XPw 2014 02 27.65454 14 21 57.044 -12 38 41.89 23.4r 444018 568 C~1XPw 2014 03 28.44167 14 20 30.896 -12 31 01.72 23.3r 444018 568 C~1XPw 2014 03 28.48073 14 20 30.737 -12 31 00.87 23.2r 444018 568 C~1XPw 2014 04 05.41253 14 19 58.460 -12 28 15.14 23.3r 444018 568 C~1XPw 2014 05 22.41728 14 16 27.890 -12 10 55.42 23.2r 444018 568 C~1XPw 2014 05 28.38945 14 16 04.048 -12 09 02.87 23.1r 444018 568 C~1XPw 2015 04 25.27362 14 23 41.90 -12 50 42.1 23.4V 444018 W84 C~2g2C 2015 04 25.34264 14 23 41.58 -12 50 40.3 444018 W84 C~2g2C 2015 04 26.26945 14 23 37.28 -12 50 19.6 444018 W84 C~2g2C 2015 04 26.33926 14 23 36.94 -12 50 17.8 444018 W84 C~2g2C 2016 06 05.34506 14 25 53.309 -13 06 07.42 23.4w 444018 568 C~2KVA 2017 02 23.64413 14 37 30.640 -14 05 37.22 444018 568 C~2KVA 2017 02 24.65456 14 37 29.304 -14 05 29.86 444018 568 C~2KVA
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 -0.12 0.00 -0.00
2 0.0024 0.00 -0.06 0.00 0.17
3 0.0027 0.00 0.20 0.00 0.00
4 0.1038 0.00 -0.18 0.00 -0.14
5 0.1040 0.00 -0.11 0.00 -0.19
6 0.1639 0.00 0.08 0.00 -0.11
7 0.1641 0.00 0.18 0.00 -0.15
8 0.1959 0.00 -0.24 0.00 -0.16
9 0.1960 0.00 -0.32 0.00 -0.14
10 1.1491 0.00 0.14 0.00 0.10
11 1.1518 0.00 0.09 0.00 0.22
12 1.1521 0.00 0.30 0.00 0.38
13 1.1543 0.00 0.02 0.00 0.19
14 8.9776 0.00 -0.00 0.00 -0.01
15 8.9778 0.00 0.00 0.00 -0.02
16 8.9779 0.00 0.16 0.00 0.10
17 9.0543 0.00 -0.02 0.00 -0.02
18 9.0621 0.00 0.05 0.00 -0.08
19 9.0622 0.00 -0.08 0.00 -0.04
20 9.0649 0.00 0.08 0.00 -0.03
21 9.0651 0.00 -0.05 0.00 -0.01
22 9.0675 0.00 -0.03 0.00 -0.05
23 9.0676 0.00 -0.10 0.00 -0.00
24 9.0678 0.00 -0.01 0.00 0.01
25 9.1554 0.00 -0.04 0.00 -0.07
26 9.1581 0.00 -0.05 0.00 -0.12
27 9.2427 0.00 0.04 0.00 0.02
28 9.3028 0.00 -0.03 0.00 0.05
29 9.3083 0.00 0.04 0.00 0.01
30 9.9469 0.00 0.04 0.00 -0.07
31 9.9496 0.00 -0.01 0.00 -0.05
32 9.9554 0.00 -0.09 0.00 -0.04
33 10.0342 0.00 0.12 0.00 0.02
34 10.0343 0.00 0.06 0.00 0.09
35 10.0560 0.00 0.11 0.00 -0.01
36 10.1847 0.00 -0.01 0.00 -0.04
37 10.2010 0.00 0.18 0.00 0.03
38 11.1097 0.00 -0.14 0.00 -0.05
39 11.1099 0.00 -0.08 0.00 0.18
40 11.1124 0.00 -0.14 0.00 -0.07
41 11.1126 0.00 -0.32 0.00 0.15
42 12.2242 0.00 0.19 0.00 -0.10
43 12.9451 0.00 0.07 0.00 0.05
44 12.9478 0.00 0.04 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.
444018 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 43.895 43.895 43.895 ecceobj 0.039 0.039 0.039 incobj 2.826 2.826 2.826 qmin 41.508 41.508 41.506 qmax 47.146 47.146 47.145 amean 44.213 44.213 44.213 amin 43.867 43.867 43.866 amax 44.565 44.565 44.565 emean 0.043 0.043 0.043 emin 0.027 0.027 0.027 emax 0.058 0.058 0.058 imean 1.512 1.512 1.512 imin 0.806 0.806 0.806 imax 2.032 2.032 2.032 excite_mean 0.050 0.050 0.050 fracstop 1.000 1.000 1.000 cjmean 3.101 3.101 3.101 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 178.3 178.3 178.3 kozaiamp 179.9 180.0 180.0