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: 19GA143
# Created Wed Nov 27 02:10:56 2024
# Orbit generated from Bernstein formalism
# Fitting 9 observations of 9
# Arc: 8.06d
# First observation: 2019/04/05
# Last observation: 2019/04/13
# WARNING Fitting with energy constraint
# WARNING and with gdot fixed = 0
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 32.37 DOF: 14 RMS: 0.34
# Min/Max residuals: -0.56 0.50
# Exact a, adot, b, bdot, g, gdot:
2.090616E-05 3.750357E-02 -3.490083E-07 -9.207117E-04 3.260325E-02 0.000000E+00
# Covariance matrix:
4.4710E-11 9.1833E-08 -2.9186E-13 -4.1510E-11 1.4652E-08 0.0000E+00
9.1833E-08 1.8999E-04 -6.0370E-10 -8.5863E-08 3.0307E-05 0.0000E+00
-2.9186E-13 -6.0370E-10 3.0784E-13 -1.6107E-11 -9.6302E-11 0.0000E+00
-4.1510E-11 -8.5863E-08 -1.6107E-11 1.9188E-09 -1.3697E-08 0.0000E+00
1.4652E-08 3.0307E-05 -9.6302E-11 -1.3697E-08 4.8346E-06 0.0000E+00
0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 4.5604E-04
# lat0 lon0 xBary yBary zBary JD0
1.397242 -160.806047 0.084609 0.024337 -0.995990 2458578.619601
# Heliocentric elements and errors
Epoch: 2458570.5000 = 2019/03/28
Mean Anomaly: 356.01924 +/- 108.975
Argument of Peri: 140.50410 +/- 176.513
Long of Asc Node: 63.03014 +/- 10.379
Inclination: 1.94854 +/- 0.370
Eccentricity: 0.06479149 +/- 0.5684
Semi-Major Axis: 33.85663049 +/- 18.3559
Time of Perihelion: 2459366.1595 +/- 93734.8
Perihelion: 31.66300890 +/- 25.7876
Aphelion: 36.05025207 +/- 27.4285
Period (y) 197.0034 +/- 160.21
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -29.92515624 +/- 1.9530
Ecliptic Y -10.33669184 +/- 0.6797
Ecliptic Z 0.74788590 +/- 0.0504
Ecliptic XDOT 0.00104192 +/- 0.0017
Ecliptic YDOT -0.00297592 +/- 0.0011
Ecliptic ZDOT -0.00007751 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 31.66893600 +/- 1.8587
Geocenter to KBO 30.67178867 +/- 2.0685
# Hcoef: 8.93
The following table shows the complete astrometric record for 19GA143. 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 (19GA143) followed by the observatory code and reference code for the source of the astrometry.
2019 04 05.11880 13 12 58.95 -06 13 15.9 19GA143 W93 C~5ftD 2019 04 05.14681 13 12 58.83 -06 13 15.5 19GA143 W93 C~5ftD 2019 04 05.17434 13 12 58.67 -06 13 14.8 19GA143 W93 C~5ftD 2019 04 07.10799 13 12 47.35 -06 12 05.6 19GA143 W93 C~5ftD 2019 04 07.13606 13 12 47.20 -06 12 04.5 23.5R 19GA143 W93 C~5ftD 2019 04 07.16372 13 12 47.00 -06 12 03.5 19GA143 W93 C~5ftD 2019 04 13.12178 13 12 12.04 -06 08 34.5 19GA143 W93 C~5ftD 2019 04 13.15280 13 12 11.90 -06 08 33.3 19GA143 W93 C~5ftD 2019 04 13.18017 13 12 11.75 -06 08 32.4 19GA143 W93 C~5ftD
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 -0.56 0.00 -0.02
2 0.0001 -1.81 0.30 -0.31 -0.30
3 0.0002 -4.28 0.45 -0.56 -0.53
4 0.0054 -186.72 -0.05 -0.29 0.30
5 0.0055 -189.20 0.14 -0.12 0.50
6 0.0056 -192.34 -0.35 -0.32 0.33
7 0.0219 -754.03 -0.43 -3.96 -0.34
8 0.0220 -756.41 0.14 -3.64 0.02
9 0.0221 -758.83 0.34 -3.65 0.04
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.
19GA143 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0