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: 19VE50
# Created Sun Dec 22 02:11:10 2024
# Orbit generated from Bernstein formalism
# Fitting 18 observations of 18
# Arc: 62.06d
# First observation: 2019/10/27
# Last observation: 2019/12/28
Preliminary a, adot, b, bdot, g, gdot:
-0.000027 0.064383 -0.000016 -0.002656 0.049476 0.000000
# Chi-squared of fit: 6.16 DOF: 30 RMS: 0.10
# Min/Max residuals: -0.28 0.25
# Exact a, adot, b, bdot, g, gdot:
2.107086E-05 6.423683E-02 -1.931657E-06 -3.366202E-03 5.017779E-02 -2.281033E-02
# Covariance matrix:
3.5118E-13 1.9202E-12 5.4328E-14 -2.1049E-12 4.9411E-12 1.0738E-09
1.9202E-12 1.5564E-10 3.9318E-14 2.2108E-11 7.5569E-11 1.9477E-09
5.4328E-14 3.9318E-14 1.8653E-13 -2.5199E-12 1.5005E-12 4.8477E-10
-2.1049E-12 2.2108E-11 -2.5199E-12 8.6227E-11 -6.0459E-11 -2.3556E-08
4.9411E-12 7.5569E-11 1.5005E-12 -6.0459E-11 1.2939E-10 2.9543E-08
1.0738E-09 1.9477E-09 4.8477E-10 -2.3556E-08 2.9543E-08 9.3449E-06
# lat0 lon0 xBary yBary zBary JD0
4.074788 -7.163009 -0.650971 0.053514 -0.751229 2458783.711641
# Heliocentric elements and errors
Epoch: 2458780.5000 = 2019/10/24
Mean Anomaly: 281.53336 +/- 7.623
Argument of Peri: 241.82315 +/- 3.670
Long of Asc Node: 225.78006 +/- 0.057
Inclination: 5.03277 +/- 0.004
Eccentricity: 0.30382951 +/- 0.0374
Semi-Major Axis: 20.08308014 +/- 0.5761
Time of Perihelion: 2465945.6693 +/- 624.1
Perihelion: 13.98124781 +/- 0.8513
Aphelion: 26.18491247 +/- 1.0622
Period (y) 90.0023 +/- 3.87
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 20.55534085 +/- 0.0045
Ecliptic Y -1.93388622 +/- 0.0006
Ecliptic Z 1.41609158 +/- 0.0003
Ecliptic XDOT -0.00077329 +/- 0.0002
Ecliptic YDOT 0.00363204 +/- 0.0000
Ecliptic ZDOT -0.00027188 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 20.69461932 +/- 0.0044
Geocenter to KBO 19.92913752 +/- 0.0045
# Hcoef: 11.41
The following table shows the complete astrometric record for 19VE50. 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 (19VE50) followed by the observatory code and reference code for the source of the astrometry.
2019 10 27.21084 23 27 15.22 +00 54 02.7 25.4r 19VE50 T09 C~7ulO 2019 10 27.23054 23 27 15.12 +00 54 01.6 24.8r 19VE50 T09 C~7ulO 2019 10 27.24524 23 27 15.03 +00 54 01.1 25.5r 19VE50 T09 C~7ulO 2019 11 01.21232 23 26 48.18 +00 50 09.8 24.9g 19VE50 T09 C~7ulO 2019 11 01.29000 23 26 47.77 +00 50 06.6 24.8g 19VE50 T09 C~7ulO 2019 11 01.37860 23 26 47.31 +00 50 02.6 24.8g 19VE50 T09 C~7ulO 2019 11 01.45822 23 26 46.90 +00 49 58.9 24.3g 19VE50 T09 C~7ulO 2019 11 02.20667 23 26 43.23 +00 49 26.3 24.3i 19VE50 T09 C~7ulO 2019 11 02.22066 23 26 43.14 +00 49 25.6 24.2i 19VE50 T09 C~7ulO 2019 11 02.23475 23 26 43.07 +00 49 24.8 23.6i 19VE50 T09 C~7ulO 2019 11 29.20334 23 25 30.17 +00 35 24.2 24.6r 19VE50 T09 C~7ulO 2019 11 29.21333 23 25 30.16 +00 35 24.1 24.8r 19VE50 T09 C~7ulO 2019 11 29.22334 23 25 30.16 +00 35 23.9 24.8r 19VE50 T09 C~7ulO 2019 11 29.24183 23 25 30.15 +00 35 23.7 25.1r 19VE50 T09 C~7ulO 2019 12 20.264599 23 26 03.96 +00 33 46.7 19VE50 T09 C~81EK 2019 12 28.208703 23 26 37.62 +00 35 27.5 19VE50 T09 C~81EK 2019 12 28.243664 23 26 37.79 +00 35 28.0 19VE50 T09 C~81EK 2019 12 28.270021 23 26 37.92 +00 35 28.5 19VE50 T09 C~81EK
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 -0.17 0.00 0.18
2 0.0001 -1.81 -0.01 -0.42 -0.05
3 0.0001 -3.25 0.03 -0.35 0.16
4 0.0137 -464.56 0.02 -53.90 -0.28
5 0.0139 -471.47 0.06 -54.41 -0.01
6 0.0141 -479.39 0.05 -55.37 -0.07
7 0.0144 -486.50 -0.01 -56.34 -0.21
8 0.0164 -549.94 0.25 -64.56 0.13
9 0.0165 -551.46 -0.05 -64.67 0.16
10 0.0165 -552.74 -0.11 -64.99 -0.02
11 0.0903 -1889.25 -0.03 -405.66 -0.07
12 0.0904 -1889.43 -0.07 -405.69 0.03
13 0.0904 -1889.51 -0.02 -405.88 -0.03
14 0.0904 -1889.72 0.02 -406.00 0.08
15 0.1480 -1462.06 0.10 -695.34 -0.03
16 0.1697 -958.38 -0.03 -802.03 0.09
17 0.1698 -955.84 -0.04 -802.58 -0.03
18 0.1699 -953.85 0.02 -802.89 -0.01
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.
19VE50 quality flag:3 Type: CENTAURR CENTAURR CENTAURR axisobj 20.070 20.568 20.044 ecceobj 0.306 0.194 0.337 incobj 5.030 5.040 5.031 qmin 13.880 16.570 13.287 qmax 26.679 24.775 28.527 amean 20.036 20.660 20.468 amin 19.653 20.314 20.044 amax 20.444 20.957 21.594 emean 0.290 0.174 0.329 emin 0.270 0.154 0.318 emax 0.307 0.194 0.338 imean 6.731 6.499 6.267 imin 5.920 5.930 5.948 imax 7.397 7.574 6.706 excite_mean 0.313 0.208 0.346 fracstop 0.002 0.002 0.002 cjmean 3.055 3.080 3.021 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 260.0 242.4 267.6 kozaiamp 16.1 25.5 20.3