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: 19GH201
# Created Sun Oct 19 01:12:00 2025
# Orbit generated from Bernstein formalism
# Fitting 7 observations of 7
# Arc: 59.04d
# First observation: 2019/02/05
# Last observation: 2019/04/05
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.016974 -0.000000 0.000369 0.022682 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 1.21 DOF: 9 RMS: 0.07
# Min/Max residuals: -0.11 0.14
# Exact a, adot, b, bdot, g, gdot:
1.440590E-05 2.103414E-02 9.482766E-08 2.949701E-04 2.322339E-02 -9.498200E-03
# Covariance matrix:
2.4915E-11 3.7526E-08 -6.1839E-13 -6.2606E-10 6.6142E-09 6.1196E-08
3.7526E-08 5.8241E-05 -9.5959E-10 -9.7159E-07 1.0263E-05 9.4476E-05
-6.1839E-13 -9.5959E-10 7.4555E-13 1.1444E-11 -1.6912E-10 -1.5652E-09
-6.2606E-10 -9.7159E-07 1.1444E-11 1.6249E-08 -1.7117E-07 -1.5655E-06
6.6142E-09 1.0263E-05 -1.6912E-10 -1.7117E-07 1.8094E-06 1.6965E-05
6.1196E-08 9.4476E-05 -1.5652E-09 -1.5655E-06 1.6965E-05 2.5421E-04
# lat0 lon0 xBary yBary zBary JD0
3.261115 -178.717276 0.706158 0.039695 -0.695488 2458520.035261
# Heliocentric elements and errors
Epoch: 2458520.5000 = 2019/02/06
Mean Anomaly: 307.49085 +/- 45.148
Argument of Peri: 178.86428 +/- 43.613
Long of Asc Node: 105.07996 +/- 10.287
Inclination: 3.31740 +/- 0.158
Eccentricity: 0.43741944 +/- 0.6911
Semi-Major Axis: 48.56701304 +/- 21.9065
Time of Perihelion: 2476552.4631 +/- 9567.4
Perihelion: 27.32285748 +/- 35.7558
Aphelion: 69.81116861 +/- 46.0233
Period (y) 338.4701 +/- 229.00
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -43.69073409 +/- 2.4894
Ecliptic Y -0.28010312 +/- 0.0556
Ecliptic Z 2.44952070 +/- 0.1419
Ecliptic XDOT 0.00118320 +/- 0.0019
Ecliptic YDOT -0.00245572 +/- 0.0008
Ecliptic ZDOT -0.00002919 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 43.76024286 +/- 2.4855
Geocenter to KBO 43.06003645 +/- 2.4941
# Hcoef: 8.81
The following table shows the complete astrometric record for 19GH201. 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 (19GH201) followed by the observatory code and reference code for the source of the astrometry.
2019 02 05.53446 12 09 53.87 +02 28 54.5 24.7i 19GH201 T09 C~94xH 2019 02 05.66520 12 09 53.50 +02 28 57.3 24.9i 19GH201 T09 C~94xH 2019 04 04.44671 12 06 06.39 +02 55 05.8 26.0g 19GH201 T09 C~94xH 2019 04 04.45724 12 06 06.35 +02 55 06.2 26.4g 19GH201 T09 C~94xH 2019 04 05.52031 12 06 01.83 +02 55 34.6 24.6r 19GH201 T09 C~94xH 2019 04 05.55382 12 06 01.68 +02 55 35.4 24.8r 19GH201 T09 C~94xH 2019 04 05.57268 12 06 01.61 +02 55 35.7 25.1r 19GH201 T09 C~94xH
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 0.02
2 0.0004 -6.20 0.02 0.36 -0.02
3 0.1586 -3752.58 0.02 86.17 -0.10
4 0.1586 -3753.29 0.05 86.30 0.04
5 0.1615 -3826.74 -0.06 85.45 0.14
6 0.1616 -3829.12 -0.11 85.30 0.02
7 0.1616 -3830.20 0.11 85.15 -0.10
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.
19GH201 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