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: 19EU5
# Created Wed Dec 25 02:11:00 2024
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 5.03y
# First observation: 2016/01/06
# Last observation: 2021/01/16
# Chi-squared of fit: 5.99 DOF: 24 RMS: 0.11
# Min/Max residuals: -0.29 0.20
# Exact a, adot, b, bdot, g, gdot:
1.115139E-05 8.025180E-03 3.343123E-06 2.410848E-03 1.182888E-02 -7.407593E-03
# Covariance matrix:
4.8418E-13 -1.9805E-13 1.1817E-14 -2.8368E-14 -5.5114E-14 -2.3776E-12
-1.9805E-13 7.0074E-13 -7.9125E-14 2.0262E-13 1.1889E-12 1.6916E-11
1.1817E-14 -7.9125E-14 4.4135E-13 -1.2666E-13 -1.3886E-13 -1.9985E-12
-2.8368E-14 2.0262E-13 -1.2666E-13 9.2472E-14 3.6116E-13 5.1190E-12
-5.5114E-14 1.1889E-12 -1.3886E-13 3.6116E-13 2.4483E-12 3.0125E-11
-2.3776E-12 1.6916E-11 -1.9985E-12 5.1190E-12 3.0125E-11 4.2736E-10
# lat0 lon0 xBary yBary zBary JD0
7.265326 132.081639 0.444355 0.111183 -0.870616 2457394.087997
# Heliocentric elements and errors
Epoch: 2457394.5000 = 2016/01/07
Mean Anomaly: 359.49391 +/- 0.072
Argument of Peri: 108.84128 +/- 0.011
Long of Asc Node: 109.19253 +/- 0.002
Inclination: 18.18116 +/- 0.001
Eccentricity: 0.96955031 +/- 0.0029
Semi-Major Axis: 1539.98226715 +/- 145.0277
Time of Perihelion: 2488425.3285 +/- 3113780.7
Perihelion: 46.89198962 +/- 6.3052
Aphelion: 3033.07254469 +/- 285.6748
Period (y) 60434.0615 +/- 8537.06
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -56.46493359 +/- 0.0074
Ecliptic Y 63.18728995 +/- 0.0082
Ecliptic Z 10.69140032 +/- 0.0014
Ecliptic XDOT -0.00019227 +/- 0.0000
Ecliptic YDOT -0.00256643 +/- 0.0000
Ecliptic ZDOT 0.00033672 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 85.41295210 +/- 0.0078
Geocenter to KBO 84.53971278 +/- 0.0112
# Hcoef: 6.27
The following table shows the complete astrometric record for 19EU5. 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 (19EU5) followed by the observatory code and reference code for the source of the astrometry.
2016 01 06.587208 09 07 02.35 +24 08 05.3 25.5g 19EU5 568 C~5XwJ 2016 01 06.609680 09 07 02.31 +24 08 05.6 19EU5 568 C~5XwJ 2016 01 06.632978 09 07 02.25 +24 08 05.8 19EU5 568 C~5XwJ 2019 03 05.28815 09 11 02.076 +24 19 03.76 25.5r 19EU5 568 C~5JzJ 2019 03 05.46730 09 11 01.660 +24 19 05.30 25.5r 19EU5 568 C~5JzJ 2019 04 03.28983 09 10 08.666 +24 21 31.13 25.6r 19EU5 568 C~5JzJ 2019 04 03.38084 09 10 08.550 +24 21 31.20 25.6r 19EU5 568 C~5JzJ 2019 12 27.25012 09 16 04.382 +24 04 14.68 25.6r 19EU5 304 C~5JzJ 2019 12 27.29460 09 16 04.264 +24 04 15.10 25.2r 19EU5 304 C~5JzJ 2020 01 24.60305 09 14 58.212 +24 10 58.15 25.2r 19EU5 568 C~5JzJ 2020 01 25.57243 09 14 55.659 +24 11 11.85 25.2r 19EU5 568 C~5JzK 2020 12 16.33064 09 18 36.297 +24 01 16.14 25.4r 19EU5 304 C~5JzK 2020 12 17.32682 09 18 34.770 +24 01 29.19 25.5r 19EU5 304 C~5JzK 2021 01 15.24427 09 17 34.857 +24 08 19.72 19EU5 304 C~5JzK 2021 01 16.21400 09 17 32.441 +24 08 33.83 19EU5 304 C~5JzK
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 -0.10 0.00 0.00
2 0.0001 0.00 0.08 0.00 0.00
3 0.0001 0.00 -0.02 0.00 -0.11
4 3.1587 0.00 0.03 0.00 0.13
5 3.1592 0.00 0.13 0.00 0.20
6 3.2381 0.00 0.00 0.00 0.13
7 3.2383 0.00 0.06 0.00 0.05
8 3.9717 0.00 0.19 0.00 -0.09
9 3.9718 0.00 -0.27 0.00 -0.29
10 4.0493 0.00 -0.07 0.00 -0.08
11 4.0520 0.00 -0.08 0.00 0.06
12 4.9439 0.00 0.05 0.00 0.01
13 4.9466 0.00 -0.04 0.00 0.02
14 5.0258 0.00 -0.01 0.00 -0.01
15 5.0284 0.00 0.12 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.
19EU5 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 1133.527 1133.343 1133.711 ecceobj 0.959 0.959 0.959 incobj 18.185 18.185 18.185 qmin 34.258 34.971 34.221 qmax 3718.707 3593.106 4058.197 amean 1297.142 1229.060 1302.862 amin 1102.081 1031.558 1049.047 amax 1882.728 1819.939 2052.466 emean 0.964 0.962 0.964 emin 0.952 0.950 0.952 emax 0.975 0.974 0.977 imean 16.672 16.669 16.668 imin 15.870 15.925 15.851 imax 17.748 17.624 17.751 excite_mean 1.006 1.004 1.006 fracstop 1.000 1.000 1.000 cjmean 3.372 3.372 3.372 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 110.1 110.0 110.0 kozaiamp 7.5 7.1 7.4