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: 19GY184
# Created Wed Dec 25 02:11:02 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 6.00y
# First observation: 2013/04/03
# Last observation: 2019/04/04
# Chi-squared of fit: 4.68 DOF: 24 RMS: 0.10
# Min/Max residuals: -0.27 0.17
# Exact a, adot, b, bdot, g, gdot:
1.431156E-05 1.985598E-02 5.757273E-07 6.898518E-04 2.204204E-02 6.646684E-04
# Covariance matrix:
1.4514E-12 -6.0035E-13 1.1695E-14 -1.3981E-14 -3.8673E-13 -3.0280E-12
-6.0035E-13 5.0386E-13 -1.2835E-14 1.5488E-14 2.8150E-13 3.3809E-12
1.1695E-14 -1.2835E-14 1.0648E-12 -1.9147E-13 -9.9003E-15 -9.4006E-14
-1.3981E-14 1.5488E-14 -1.9147E-13 3.8269E-14 1.1282E-14 1.1316E-13
-3.8673E-13 2.8150E-13 -9.9003E-15 1.1282E-14 8.7738E-13 2.3413E-12
-3.0280E-12 3.3809E-12 -9.4006E-14 1.1316E-13 2.3413E-12 2.4650E-11
# lat0 lon0 xBary yBary zBary JD0
3.622513 173.192888 -0.348490 0.059366 -0.936718 2456385.719860
# Heliocentric elements and errors
Epoch: 2456386.5000 = 2013/04/04
Mean Anomaly: 133.90910 +/- 0.183
Argument of Peri: 282.30141 +/- 0.177
Long of Asc Node: 112.55984 +/- 0.007
Inclination: 4.05382 +/- 0.000
Eccentricity: 0.06286615 +/- 0.0002
Semi-Major Axis: 44.28948163 +/- 0.0063
Time of Perihelion: 2416340.7056 +/- 55.3
Perihelion: 41.50517254 +/- 0.0097
Aphelion: 47.07379071 +/- 0.0102
Period (y) 294.7536 +/- 0.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -45.93068030 +/- 0.0019
Ecliptic Y 5.13368707 +/- 0.0002
Ecliptic Z 2.86647848 +/- 0.0001
Ecliptic XDOT -0.00037506 +/- 0.0000
Ecliptic YDOT -0.00243939 +/- 0.0000
Ecliptic ZDOT 0.00009087 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.30546664 +/- 0.0019
Geocenter to KBO 45.36785579 +/- 0.0019
# Hcoef: 6.42
The following table shows the complete astrometric record for 19GY184. 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 (19GY184) followed by the observatory code and reference code for the source of the astrometry.
2013 04 03.219082 11 40 45.48 +06 01 42.4 22.6z 19GY184 W84 C~870j 2016 03 02.238697 11 55 39.52 +04 32 15.8 19GY184 W84 C~870j 2017 03 01.260455 11 59 57.97 +04 06 25.1 23.7g 19GY184 W84 C~870j 2018 02 22.340241 12 04 37.23 +03 37 56.5 22.7r 19GY184 W84 C~870j 2018 04 22.282636 12 00 48.03 +04 02 52.3 19GY184 T09 C~870j 2019 02 05.55162 12 09 41.34 +03 05 54.6 22.7i 19GY184 T09 C~83GG 2019 02 05.55500 12 09 41.36 +03 05 54.6 22.7i 19GY184 T09 C~83GG 2019 02 05.59805 12 09 41.24 +03 05 55.7 22.7i 19GY184 T09 C~83GG 2019 02 05.62497 12 09 41.16 +03 05 56.1 22.7i 19GY184 T09 C~83GG 2019 03 03.53922 12 08 16.15 +03 16 35.2 23.3z 19GY184 T09 C~83GG 2019 03 03.58217 12 08 15.99 +03 16 36.3 22.6z 19GY184 T09 C~83GG 2019 03 03.63313 12 08 15.80 +03 16 37.9 22.6z 19GY184 T09 C~83GG 2019 04 04.44671 12 06 07.58 +03 30 51.2 24.0g 19GY184 T09 C~83GG 2019 04 04.46785 12 06 07.50 +03 30 51.7 23.8g 19GY184 T09 C~83GG 2019 04 04.46994 12 06 07.50 +03 30 51.9 23.9g 19GY184 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 -0.02 0.00 -0.01
2 2.9131 0.00 0.09 0.00 0.03
3 3.9098 0.00 -0.03 0.00 -0.03
4 4.8901 0.00 -0.09 0.00 0.06
5 5.0515 0.00 -0.03 0.00 0.01
6 5.8435 0.00 -0.27 0.00 -0.05
7 5.8435 0.00 0.16 0.00 -0.12
8 5.8436 0.00 0.09 0.00 0.06
9 5.8437 0.00 -0.03 0.00 -0.11
10 5.9146 0.00 -0.13 0.00 -0.05
11 5.9148 0.00 -0.03 0.00 -0.11
12 5.9149 0.00 0.08 0.00 0.12
13 6.0020 0.00 -0.04 0.00 0.04
14 6.0021 0.00 0.04 0.00 0.01
15 6.0021 0.00 0.17 0.00 0.16
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.
19GY184 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 44.114 44.114 44.114 ecceobj 0.066 0.066 0.066 incobj 4.056 4.056 4.056 qmin 40.352 40.355 40.380 qmax 48.367 48.392 48.363 amean 44.277 44.277 44.278 amin 43.927 43.928 43.920 amax 44.643 44.651 44.643 emean 0.069 0.069 0.069 emin 0.054 0.054 0.054 emax 0.084 0.084 0.084 imean 2.665 2.665 2.665 imin 1.968 1.968 1.968 imax 3.363 3.363 3.363 excite_mean 0.084 0.084 0.084 fracstop 1.000 1.000 1.000 cjmean 3.096 3.096 3.097 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 177.4 177.3 177.3 kozaiamp 179.9 180.0 180.0