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: 19GK183
# Created Mon Apr 28 01:11:15 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 5.15y
# First observation: 2014/04/02
# Last observation: 2019/05/28
# Chi-squared of fit: 8.19 DOF: 24 RMS: 0.13
# Min/Max residuals: -0.24 0.39
# Exact a, adot, b, bdot, g, gdot:
1.466575E-05 2.138026E-02 -7.706307E-07 -1.071941E-03 2.306959E-02 7.124424E-04
# Covariance matrix:
1.4670E-12 -7.7815E-13 -1.7503E-14 2.7451E-14 -4.9877E-13 -4.5355E-12
-7.7815E-13 9.2775E-13 2.8639E-14 -4.4471E-14 7.2073E-13 7.2947E-12
-1.7503E-14 2.8639E-14 1.1243E-12 -2.3407E-13 1.8603E-14 2.4005E-13
2.7451E-14 -4.4471E-14 -2.3407E-13 5.5038E-14 -3.2722E-14 -3.7176E-13
-4.9877E-13 7.2073E-13 1.8603E-14 -3.2722E-14 1.2914E-12 5.8278E-12
-4.5355E-12 7.2947E-12 2.4005E-13 -3.7176E-13 5.8278E-12 6.0862E-11
# lat0 lon0 xBary yBary zBary JD0
9.322803 -163.228414 0.071424 0.161423 -0.982876 2456750.066556
# Heliocentric elements and errors
Epoch: 2456750.5000 = 2014/04/03
Mean Anomaly: 129.91503 +/- 0.315
Argument of Peri: 333.50619 +/- 0.312
Long of Asc Node: 89.13844 +/- 0.003
Inclination: 9.55033 +/- 0.000
Eccentricity: 0.04591629 +/- 0.0003
Semi-Major Axis: 43.01295795 +/- 0.0060
Time of Perihelion: 2419566.6571 +/- 90.5
Perihelion: 41.03796237 +/- 0.0129
Aphelion: 44.98795353 +/- 0.0131
Period (y) 282.1027 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -41.93066487 +/- 0.0020
Ecliptic Y -12.56051627 +/- 0.0006
Ecliptic Z 7.02208706 +/- 0.0003
Ecliptic XDOT 0.00062701 +/- 0.0000
Ecliptic YDOT -0.00246269 +/- 0.0000
Ecliptic ZDOT -0.00011171 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 44.33119677 +/- 0.0019
Geocenter to KBO 43.34711706 +/- 0.0021
# Hcoef: 8.53
The following table shows the complete astrometric record for 19GK183. 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 (19GK183) followed by the observatory code and reference code for the source of the astrometry.
2014 04 02.565778 13 16 04.70 +02 01 35.8 19GK183 T09 C~870j 2017 04 01.411755 13 29 27.09 +00 26 47.5 19GK183 T09 C~870j 2017 04 01.483392 13 29 26.79 +00 26 49.3 19GK183 T09 C~870j 2019 03 11.59564 13 39 38.64 -00 45 27.9 26.1g 19GK183 T09 C~7zqo 2019 03 11.59773 13 39 38.64 -00 45 27.8 25.6g 19GK183 T09 C~7zqo 2019 03 11.62926 13 39 38.52 -00 45 26.6 25.9g 19GK183 T09 C~7zqo 2019 03 11.63972 13 39 38.50 -00 45 26.8 25.9g 19GK183 T09 C~7zqo 2019 04 07.42328 13 37 54.52 -00 33 31.2 24.4i 19GK183 T09 C~7zqo 2019 04 07.42596 13 37 54.49 -00 33 31.2 24.3i 19GK183 T09 C~7zqo 2019 04 07.46665 13 37 54.32 -00 33 30.0 24.7i 19GK183 T09 C~7zqo 2019 04 08.47095 13 37 50.02 -00 33 04.0 24.5y 19GK183 T09 C~7zqo 2019 04 08.51144 13 37 49.85 -00 33 03.1 24.0y 19GK183 T09 C~7zqo 2019 04 08.52220 13 37 49.81 -00 33 03.0 24.6y 19GK183 T09 C~7zqo 2019 05 28.306868 13 34 32.56 -00 17 47.8 19GK183 T09 C~870j 2019 05 28.414869 13 34 32.23 -00 17 46.9 19GK183 T09 C~870j
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 0.00 0.00 0.01
2 2.9975 0.00 -0.07 0.00 0.04
3 2.9977 0.00 0.03 0.00 -0.08
4 4.9392 0.00 0.07 0.00 -0.02
5 4.9392 0.00 0.17 0.00 0.02
6 4.9393 0.00 -0.02 0.00 0.39
7 4.9393 0.00 0.21 0.00 -0.08
8 5.0126 0.00 0.11 0.00 0.02
9 5.0126 0.00 -0.16 0.00 -0.05
10 5.0127 0.00 -0.06 0.00 0.09
11 5.0155 0.00 -0.24 0.00 0.14
12 5.0156 0.00 -0.15 0.00 -0.01
13 5.0156 0.00 -0.05 0.00 -0.19
14 5.1519 0.00 -0.03 0.00 -0.14
15 5.1522 0.00 0.10 0.00 -0.12
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.
19GK183 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 42.718 42.718 42.718 ecceobj 0.050 0.050 0.050 incobj 9.547 9.547 9.547 qmin 39.711 39.731 39.699 qmax 46.406 46.432 46.418 amean 42.958 42.958 42.958 amin 42.631 42.633 42.628 amax 43.304 43.308 43.303 emean 0.056 0.056 0.056 emin 0.038 0.038 0.038 emax 0.072 0.073 0.072 imean 7.764 7.764 7.764 imin 6.944 6.944 6.945 imax 8.600 8.601 8.602 excite_mean 0.147 0.147 0.147 fracstop 1.000 1.000 1.000 cjmean 3.064 3.064 3.064 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 174.4 174.2 174.5 kozaiamp 179.9 179.9 180.0