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: 19CZ30
# Created Wed Jul 17 01:11:37 2024
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 59.04d
# First observation: 2019/02/05
# Last observation: 2019/04/05
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.022439 -0.000000 -0.006391 0.025324 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# Chi-squared of fit: 8.01 DOF: 15 RMS: 0.16
# Min/Max residuals: -0.41 0.22
# Exact a, adot, b, bdot, g, gdot:
1.530302E-05 2.554191E-02 -4.249579E-06 -6.414154E-03 2.566588E-02 -7.364963E-03
# Covariance matrix:
1.2692E-11 2.0916E-08 -4.3830E-13 -5.6418E-10 3.8062E-09 5.3434E-08
2.0916E-08 3.5500E-05 -7.4350E-10 -9.5692E-07 6.4576E-06 9.0118E-05
-4.3830E-13 -7.4350E-10 3.8059E-13 1.7845E-11 -1.3554E-10 -1.9734E-09
-5.6418E-10 -9.5692E-07 1.7845E-11 2.5947E-08 -1.7454E-07 -2.5687E-06
3.8062E-09 6.4576E-06 -1.3554E-10 -1.7454E-07 1.1764E-06 1.6905E-05
5.3434E-08 9.0118E-05 -1.9734E-09 -2.5687E-06 1.6905E-05 3.7922E-04
# lat0 lon0 xBary yBary zBary JD0
4.169945 -176.248260 0.735432 0.048468 -0.663874 2458520.042011
# Heliocentric elements and errors
Epoch: 2458520.5000 = 2019/02/06
Mean Anomaly: 312.93652 +/- 30.653
Argument of Peri: 245.00568 +/- 82.632
Long of Asc Node: 18.58567 +/- 3.331
Inclination: 14.66963 +/- 2.915
Eccentricity: 0.31923483 +/- 0.6989
Semi-Major Axis: 46.23595106 +/- 15.6468
Time of Perihelion: 2473532.8829 +/- 6126.6
Perihelion: 31.47582520 +/- 34.0241
Aphelion: 60.99607692 +/- 38.3440
Period (y) 314.3966 +/- 159.59
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -39.48708406 +/- 1.6386
Ecliptic Y -1.86047188 +/- 0.1073
Ecliptic Z 2.83295931 +/- 0.1197
Ecliptic XDOT 0.00091856 +/- 0.0021
Ecliptic YDOT -0.00267243 +/- 0.0006
Ecliptic ZDOT -0.00073974 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 39.63226995 +/- 1.6327
Geocenter to KBO 38.96223443 +/- 1.6465
# Hcoef: 8.67
The following table shows the complete astrometric record for 19CZ30. 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 (19CZ30) followed by the observatory code and reference code for the source of the astrometry.
2019 02 05.54121 12 20 23.71 +02 20 08.8 24.2i 19CZ30 T09 C~85K8 2019 02 05.58709 12 20 23.57 +02 20 09.7 24.2i 19CZ30 T09 C~85K8 2019 02 05.58976 12 20 23.55 +02 20 09.8 24.1i 19CZ30 T09 C~85K8 2019 02 05.63031 12 20 23.44 +02 20 10.5 24.1i 19CZ30 T09 C~85K8 2019 04 04.46143 12 16 15.84 +02 45 18.7 25.3g 19CZ30 T09 C~85K8 2019 04 04.51607 12 16 15.59 +02 45 20.4 25.2g 19CZ30 T09 C~85K8 2019 04 05.52450 12 16 10.79 +02 45 46.2 24.6r 19CZ30 T09 C~85K8 2019 04 05.55801 12 16 10.58 +02 45 46.9 24.9r 19CZ30 T09 C~85K8 2019 04 05.57686 12 16 10.53 +02 45 47.2 24.7r 19CZ30 T09 C~85K8 2019 04 05.57896 12 16 10.51 +02 45 47.6 24.7r 19CZ30 T09 C~85K8
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 0.09 0.00 0.06
2 0.0001 -2.28 0.03 -0.01 0.02
3 0.0001 -2.60 -0.15 -0.03 -0.01
4 0.0002 -4.39 0.02 -0.05 -0.06
5 0.1586 -4009.07 -0.02 -88.36 -0.17
6 0.1587 -4013.18 0.07 -88.28 0.19
7 0.1615 -4089.46 0.19 -93.11 0.21
8 0.1616 -4092.63 -0.41 -93.72 -0.21
9 0.1616 -4093.44 0.22 -93.74 -0.14
10 0.1616 -4093.87 -0.06 -93.49 0.12
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.