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: 19GA185
# Created Wed Dec 25 02:11:02 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 18 observations of 18
# Arc: 15.05y
# First observation: 2004/03/15
# Last observation: 2019/04/05
# Chi-squared of fit: 8.64 DOF: 30 RMS: 0.12
# Min/Max residuals: -0.29 0.22
# Exact a, adot, b, bdot, g, gdot:
1.404046E-05 1.913453E-02 -3.298749E-07 2.864286E-04 2.154476E-02 5.164897E-05
# Covariance matrix:
1.4621E-12 -2.5392E-13 5.1579E-15 -2.6618E-15 -1.4950E-13 -5.3235E-13
-2.5392E-13 9.8989E-14 -2.6627E-15 1.4184E-15 1.1540E-13 2.8235E-13
5.1579E-15 -2.6627E-15 1.1215E-12 -7.7896E-14 -2.2091E-15 -8.0498E-15
-2.6618E-15 1.4184E-15 -7.7896E-14 5.8205E-15 1.9104E-15 4.2999E-15
-1.4950E-13 1.1540E-13 -2.2091E-15 1.9104E-15 7.2900E-13 3.5918E-13
-5.3235E-13 2.8235E-13 -8.0498E-15 4.2999E-15 3.5918E-13 8.5565E-13
# lat0 lon0 xBary yBary zBary JD0
3.419947 165.634402 -0.174414 0.058250 -0.973731 2453080.466952
# Heliocentric elements and errors
Epoch: 2453080.5000 = 2004/03/16
Mean Anomaly: 171.10380 +/- 0.064
Argument of Peri: 263.97443 +/- 0.053
Long of Asc Node: 89.99545 +/- 0.004
Inclination: 3.45383 +/- 0.000
Eccentricity: 0.04755455 +/- 0.0001
Semi-Major Axis: 45.26433465 +/- 0.0061
Time of Perihelion: 2400212.8747 +/- 22.5
Perihelion: 43.11180968 +/- 0.0075
Aphelion: 47.41685962 +/- 0.0080
Period (y) 304.5386 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -45.87574389 +/- 0.0018
Ecliptic Y 11.57021378 +/- 0.0005
Ecliptic Z 2.76883168 +/- 0.0001
Ecliptic XDOT -0.00061101 +/- 0.0000
Ecliptic YDOT -0.00236123 +/- 0.0000
Ecliptic ZDOT 0.00003687 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 47.39324549 +/- 0.0017
Geocenter to KBO 46.41502526 +/- 0.0018
# Hcoef: 6.69
The following table shows the complete astrometric record for 19GA185. 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 (19GA185) followed by the observatory code and reference code for the source of the astrometry.
2004 03 15.966209 11 12 27.81 +08 48 54.6 19GA185 950 C~870j 2013 04 03.202567 11 47 56.90 +05 08 07.9 22.5z 19GA185 W84 C~870j 2013 04 03.217547 11 47 56.85 +05 08 08.4 22.4z 19GA185 W84 C~870j 2018 02 11.643203 12 11 19.68 +02 35 58.0 19GA185 T09 C~870j 2018 02 22.341041 12 10 45.76 +02 40 09.6 22.7r 19GA185 W84 C~870j 2018 04 22.370057 12 06 59.93 +03 04 32.6 19GA185 T09 C~870j 2019 02 05.587078 12 15 37.30 +02 07 32.8 19GA185 T09 C~870j 2019 03 03.52832 12 14 15.47 +02 17 37.4 23.1z 19GA185 T09 C~83GG 2019 03 03.56874 12 14 15.32 +02 17 38.4 22.9z 19GA185 T09 C~83GG 2019 03 03.62241 12 14 15.13 +02 17 39.7 22.9z 19GA185 T09 C~83GG 2019 03 03.62510 12 14 15.09 +02 17 40.0 23.1z 19GA185 T09 C~83GG 2019 04 04.44950 12 12 09.25 +02 31 30.2 24.3g 19GA185 T09 C~83GG 2019 04 04.45934 12 12 09.20 +02 31 30.6 24.3g 19GA185 T09 C~83GG 2019 04 04.48250 12 12 09.11 +02 31 31.1 24.3g 19GA185 T09 C~83GG 2019 04 04.51398 12 12 08.97 +02 31 31.7 24.6g 19GA185 T09 C~83GG 2019 04 05.52240 12 12 05.02 +02 31 56.4 23.8r 19GA185 T09 C~83GG 2019 04 05.54544 12 12 04.93 +02 31 57.1 23.6r 19GA185 T09 C~83GG 2019 04 05.57686 12 12 04.79 +02 31 57.8 23.5r 19GA185 T09 C~83GG
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 0.04 0.00 0.10
2 9.0492 0.00 -0.15 0.00 -0.18
3 9.0493 0.00 -0.02 0.00 -0.03
4 13.9101 0.00 -0.04 0.00 -0.14
5 13.9394 0.00 0.22 0.00 -0.05
6 14.1010 0.00 0.03 0.00 0.01
7 14.8929 0.00 -0.02 0.00 0.06
8 14.9639 0.00 -0.06 0.00 0.04
9 14.9640 0.00 -0.02 0.00 -0.00
10 14.9642 0.00 0.16 0.00 -0.09
11 14.9642 0.00 -0.29 0.00 0.14
12 15.0513 0.00 0.07 0.00 0.04
13 15.0513 0.00 -0.09 0.00 0.20
14 15.0514 0.00 -0.04 0.00 0.12
15 15.0515 0.00 -0.25 0.00 -0.05
16 15.0542 0.00 0.20 0.00 -0.12
17 15.0543 0.00 0.22 0.00 0.02
18 15.0544 0.00 -0.00 0.00 -0.05
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.
19GA185 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.824 44.824 44.824 ecceobj 0.058 0.058 0.058 incobj 3.453 3.453 3.453 qmin 41.699 41.681 41.703 qmax 48.525 48.525 48.524 amean 45.015 45.015 45.015 amin 44.655 44.660 44.655 amax 45.387 45.387 45.387 emean 0.056 0.056 0.056 emin 0.042 0.041 0.042 emax 0.070 0.070 0.069 imean 1.741 1.741 1.741 imin 1.279 1.279 1.279 imax 2.234 2.233 2.234 excite_mean 0.064 0.064 0.064 fracstop 1.000 1.000 1.000 cjmean 3.109 3.109 3.109 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 129.7 129.6 129.6 kozaiamp 180.0 179.9 180.0