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: 19GT195
# Created Tue Apr 1 01:11:14 2025
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 59.00d
# First observation: 2019/02/05
# Last observation: 2019/04/05
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.033016 -0.000000 -0.010461 0.027818 0.000000
# Chi-squared of fit: 4.53 DOF: 18 RMS: 0.11
# Min/Max residuals: -0.22 0.29
# Exact a, adot, b, bdot, g, gdot:
1.855889E-05 3.290078E-02 -6.365437E-06 -1.040190E-02 2.767033E-02 1.483133E-02
# Covariance matrix:
8.4846E-13 1.9304E-10 -1.8002E-13 -7.4279E-12 4.2109E-11 2.3197E-09
1.9304E-10 3.3287E-07 -3.2234E-10 -1.1020E-08 6.7694E-08 2.9859E-06
-1.8002E-13 -3.2234E-10 7.3586E-13 7.2318E-12 -6.5490E-11 -2.8734E-09
-7.4279E-12 -1.1020E-08 7.2318E-12 4.0615E-10 -2.2478E-09 -1.0053E-07
4.2109E-11 6.7694E-08 -6.5490E-11 -2.2478E-09 1.3783E-08 6.1119E-07
2.3197E-09 2.9859E-06 -2.8734E-09 -1.0053E-07 6.1119E-07 2.7792E-05
# lat0 lon0 xBary yBary zBary JD0
4.229490 -177.666145 0.718568 0.050496 -0.681943 2458520.055801
# Heliocentric elements and errors
Epoch: 2458520.5000 = 2019/02/06
Mean Anomaly: 5.05403 +/- 5.712
Argument of Peri: 114.65100 +/- 8.659
Long of Asc Node: 14.32270 +/- 0.239
Inclination: 17.75501 +/- 0.306
Eccentricity: 0.76378030 +/- 0.1999
Semi-Major Axis: 130.30838816 +/- 98.1486
Time of Perihelion: 2450892.8222 +/- 240.2
Perihelion: 30.78140826 +/- 34.8693
Aphelion: 229.83536806 +/- 175.0608
Period (y) 1487.5335 +/- 1680.62
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -36.72293145 +/- 0.1528
Ecliptic Y -0.78572249 +/- 0.0062
Ecliptic Z 2.66512008 +/- 0.0113
Ecliptic XDOT -0.00139751 +/- 0.0005
Ecliptic YDOT -0.00331702 +/- 0.0001
Ecliptic ZDOT -0.00091840 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 36.82789593 +/- 0.1524
Geocenter to KBO 36.13979420 +/- 0.1533
# Hcoef: 9.07
The following table shows the complete astrometric record for 19GT195. 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 (19GT195) followed by the observatory code and reference code for the source of the astrometry.
2019 02 05.55500 12 15 17.67 +02 57 09.7 25.1i 19GT195 T09 C~8HRX 2019 02 05.62764 12 15 17.43 +02 57 11.0 26.5i 19GT195 T09 C~8HRX 2019 03 03.52028 12 13 35.08 +03 07 23.3 24.0z 19GT195 T09 C~8HRX 2019 03 03.52832 12 13 35.05 +03 07 23.6 24.4z 19GT195 T09 C~8HRX 2019 03 03.54189 12 13 34.99 +03 07 23.8 24.3z 19GT195 T09 C~8HRX 2019 03 03.58484 12 13 34.80 +03 07 24.8 24.1z 19GT195 T09 C~8HRX 2019 03 03.62241 12 13 34.61 +03 07 26.2 23.8z 19GT195 T09 C~8HRX 2019 03 03.63583 12 13 34.54 +03 07 26.3 24.3z 19GT195 T09 C~8HRX 2019 04 04.44950 12 10 56.30 +03 21 29.1 25.2g 19GT195 T09 C~8HRX 2019 04 04.49303 12 10 56.10 +03 21 30.0 25.0g 19GT195 T09 C~8HRX 2019 04 05.53288 12 10 50.95 +03 21 55.0 24.5r 19GT195 T09 C~8HRX 2019 04 05.55592 12 10 50.83 +03 21 55.5 24.5r 19GT195 T09 C~8HRX
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 0.05 0.00 0.09
2 0.0002 -3.82 -0.05 -0.24 -0.07
3 0.0711 -1653.99 -0.17 -48.33 -0.06
4 0.0711 -1654.52 -0.09 -48.23 0.07
5 0.0711 -1655.43 0.04 -48.40 -0.05
6 0.0713 -1658.44 0.29 -48.62 -0.10
7 0.0714 -1661.61 -0.03 -48.46 0.20
8 0.0714 -1662.61 -0.02 -48.79 -0.08
9 0.1585 -4172.72 -0.22 -216.96 0.06
10 0.1586 -4175.83 0.12 -217.32 0.04
11 0.1615 -4256.57 0.07 -225.00 -0.00
12 0.1615 -4258.42 0.02 -225.25 -0.08
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.
19GT195 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