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: 04XX190
# Created Wed Dec 25 02:08:42 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 33 observations of 33
# Arc: 16.98y
# First observation: 2003/12/16
# Last observation: 2020/12/09
# Chi-squared of fit: 121.87 DOF: 60 RMS: 0.34
# Min/Max residuals: -1.08 0.55
# Exact a, adot, b, bdot, g, gdot:
1.532479E-05 2.575833E-02 -1.660294E-06 7.100031E-04 2.505434E-02 9.774957E-04
# Covariance matrix:
2.2121E-13 -1.0146E-13 4.3093E-15 -2.6490E-15 7.0320E-15 -1.9996E-13
-1.0146E-13 6.5795E-14 -2.9421E-15 1.8025E-15 -2.8966E-14 1.3618E-13
4.3093E-15 -2.9421E-15 7.2301E-14 -6.3435E-15 1.4940E-15 -6.2275E-15
-2.6490E-15 1.8025E-15 -6.3435E-15 1.4441E-15 -8.7720E-16 3.8139E-15
7.0320E-15 -2.8966E-14 1.4940E-15 -8.7720E-16 1.6695E-13 -6.7038E-14
-1.9996E-13 1.3618E-13 -6.2275E-15 3.8139E-15 -6.7038E-14 2.8817E-13
# lat0 lon0 xBary yBary zBary JD0
0.006666 71.964884 -0.199038 0.000180 -0.961269 2452989.827103
# Heliocentric elements and errors
Epoch: 2452990.5000 = 2003/12/17
Mean Anomaly: 19.87742 +/- 0.009
Argument of Peri: 335.63880 +/- 0.011
Long of Asc Node: 72.01857 +/- 0.001
Inclination: 1.58114 +/- 0.000
Eccentricity: 0.10619543 +/- 0.0001
Semi-Major Axis: 45.33518493 +/- 0.0039
Time of Perihelion: 2446834.3536 +/- 2.9
Perihelion: 40.52079527 +/- 0.0045
Aphelion: 50.14957459 +/- 0.0052
Period (y) 305.2539 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 12.46154471 +/- 0.0002
Ecliptic Y 38.93097402 +/- 0.0006
Ecliptic Z 0.00456694 +/- 0.0000
Ecliptic XDOT -0.00264772 +/- 0.0000
Ecliptic YDOT 0.00096674 +/- 0.0000
Ecliptic ZDOT 0.00007775 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 40.87675039 +/- 0.0006
Geocenter to KBO 39.91326306 +/- 0.0007
# Hcoef: 6.84
The following table shows the complete astrometric record for 04XX190. 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 (04XX190) followed by the observatory code and reference code for the source of the astrometry.
2003 12 16.32636 04 41 50.45 +22 13 51.2 23.0g 04XX190 568 Cq9918 2003 12 16.35282 04 41 50.30 +22 13 50.9 23.1g 04XX190 568 Cq9918 2003 12 16.37913 04 41 50.15 +22 13 50.8 23.0g 04XX190 568 Cq9918 2004 12 11.37599 04 48 31.03 +22 28 11.9 22.9r 04XX190 568 Cq9918 2004 12 11.40470 04 48 30.87 +22 28 11.7 22.7r 04XX190 568 Cq9918 2004 12 11.43762 04 48 30.69 +22 28 11.5 22.6r 04XX190 568 Cq9918 2004 12 12.29935 04 48 26.08 +22 28 03.7 22.7r 04XX190 568 Cq9918 2005 10 03.44035 04 59 38.46 +22 47 36.1 22.7R 04XX190 675 Cq9918 2005 10 03.48273 04 59 38.38 +22 47 36.0 04XX190 675 Cq9918 2005 10 04.40111 04 59 36.83 +22 47 34.3 04XX190 675 Cq9918 2005 10 04.45446 04 59 36.73 +22 47 34.0 04XX190 675 Cq9918 2005 12 04.37664 04 55 28.66 +22 41 53.0 23.0r 04XX190 697 Cq9918 2005 12 04.41527 04 55 28.46 +22 41 53.0 23.1r 04XX190 697 Cq9918 2005 12 05.36885 04 55 23.23 +22 41 44.9 23.5r 04XX190 697 Cq9918 2005 12 05.41756 04 55 22.97 +22 41 44.3 23.0r 04XX190 697 Cq9918 2005 12 06.37454 04 55 17.81 +22 41 37.2 22.9r 04XX190 697 Cq9918 2005 12 06.42560 04 55 17.50 +22 41 36.8 23.2r 04XX190 697 Cq9918 2005 12 24.27680 04 53 42.39 +22 39 13.8 23.7g 04XX190 568 C~0DpO 2005 12 24.37434 04 53 41.88 +22 39 13.0 23.5g 04XX190 568 C~0DpO 2005 12 24.40878 04 53 41.70 +22 39 13.0 23.8g 04XX190 568 C~0DpO 2005 12 25.41238 04 53 36.60 +22 39 05.0 23.7g 04XX190 568 C~0DpO 2006 01 31.246214 04 51 10.52 +22 35 22.3 22.1V 04XX190 645 C~2JxC 2006 01 31.247043 04 51 10.52 +22 35 22.1 22.0V 04XX190 645 C~2JxC 2006 01 31.249531 04 51 10.53 +22 35 22.1 23.6V 04XX190 645 C~2JxC 2008 09 18.07254 05 18 23.41 +23 17 22.4 24.1R 04XX190 250 S~06Am 2008 09 18.07949 05 18 23.41 +23 17 22.4 04XX190 250 S~06Am 2008 09 18.08574 05 18 23.42 +23 17 22.4 04XX190 250 S~06Am 2008 09 18.13574 05 18 23.43 +23 17 22.5 04XX190 250 S~06Am 2020 01 18.317240 06 19 17.688 +23 59 40.02 21.8G 04XX190 G37 C~3iMZ 2020 01 18.349380 06 19 17.551 +23 59 40.06 04XX190 G37 C~3iMZ 2020 12 09.388530 06 28 52.510 +23 56 06.35 22.1G 04XX190 G37 C~4Ty6 2020 12 09.434430 06 28 52.315 +23 56 06.03 04XX190 G37 C~4Ty6 2020 12 09.485380 06 28 52.037 +23 56 06.91 04XX190 G37 C~4Ty6
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 0.46
2 0.0001 0.00 0.02 0.00 0.40
3 0.0001 0.00 -0.12 0.00 0.55
4 0.9885 0.00 -0.15 0.00 0.29
5 0.9886 0.00 -0.19 0.00 0.34
6 0.9887 0.00 -0.18 0.00 0.43
7 0.9910 0.00 0.02 0.00 0.22
8 1.7991 0.00 0.13 0.00 0.07
9 1.7992 0.00 0.02 0.00 0.05
10 1.8017 0.00 0.07 0.00 0.14
11 1.8019 0.00 0.03 0.00 -0.06
12 1.9687 0.00 0.05 0.00 0.05
13 1.9688 0.00 0.23 0.00 0.36
14 1.9714 0.00 -0.59 0.00 -0.16
15 1.9715 0.00 -0.47 0.00 -0.36
16 1.9741 0.00 0.08 0.00 0.16
17 1.9743 0.00 -0.36 0.00 0.18
18 2.0231 0.00 0.19 0.00 -1.02
19 2.0234 0.00 0.16 0.00 -1.08
20 2.0235 0.00 0.15 0.00 -0.82
21 2.0262 0.00 0.41 0.00 -1.08
22 2.1271 0.00 0.01 0.00 0.20
23 2.1271 0.00 0.04 0.00 0.01
24 2.1271 0.00 0.28 0.00 0.02
25 4.7577 0.00 -0.07 0.00 0.12
26 4.7577 0.00 -0.11 0.00 0.11
27 4.7577 0.00 0.01 0.00 0.11
28 4.7579 0.00 -0.12 0.00 0.15
29 16.0903 0.00 -0.20 0.00 -0.10
30 16.0904 0.00 0.15 0.00 -0.12
31 16.9831 0.00 -0.30 0.00 0.25
32 16.9832 0.00 0.32 0.00 -0.26
33 16.9833 0.00 0.07 0.00 0.42
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.
04XX190 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.588 45.588 45.588 ecceobj 0.112 0.112 0.112 incobj 1.577 1.577 1.577 qmin 39.444 39.442 39.447 qmax 51.338 51.339 51.372 amean 45.247 45.247 45.248 amin 44.868 44.874 44.871 amax 45.648 45.653 45.666 emean 0.110 0.110 0.110 emin 0.095 0.096 0.095 emax 0.125 0.125 0.125 imean 0.658 0.658 0.658 imin 0.082 0.079 0.082 imax 1.065 1.065 1.065 excite_mean 0.111 0.111 0.111 fracstop 1.000 1.000 1.000 cjmean 3.102 3.102 3.102 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 169.1 169.1 169.0 kozaiamp 180.0 180.0 180.0