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: 19CO33
# Created Wed May 21 01:11:16 2025
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 31.85d
# First observation: 2019/02/04
# Last observation: 2019/03/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000002 0.025502 -0.000000 -0.001509 0.024031 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: 9.36 DOF: 15 RMS: 0.17
# Min/Max residuals: -0.30 0.38
# Exact a, adot, b, bdot, g, gdot:
1.320766E-05 2.217246E-02 -1.286963E-06 -1.467990E-03 2.332888E-02 -2.795521E-03
# Covariance matrix:
7.1055E-12 1.1558E-08 -1.9857E-13 -1.3183E-10 2.2805E-09 1.4599E-07
1.1558E-08 1.9791E-05 -3.3707E-10 -2.2344E-07 3.8689E-06 2.2921E-04
-1.9857E-13 -3.3707E-10 2.1938E-13 1.2997E-12 -6.6142E-11 -4.0498E-09
-1.3183E-10 -2.2344E-07 1.2997E-12 2.6294E-09 -4.3873E-08 -2.7018E-06
2.2805E-09 3.8689E-06 -6.6142E-11 -4.3873E-08 7.5937E-07 4.6599E-05
1.4599E-07 2.2921E-04 -4.0498E-09 -2.7018E-06 4.6599E-05 3.7072E-03
# lat0 lon0 xBary yBary zBary JD0
1.215463 176.321868 0.655717 0.015849 -0.744012 2458519.087451
# Heliocentric elements and errors
Epoch: 2458510.5000 = 2019/01/27
Mean Anomaly: 286.07297 +/- 153.991
Argument of Peri: 252.77872 +/- 141.103
Long of Asc Node: 12.98474 +/- 3.526
Inclination: 3.96362 +/- 0.780
Eccentricity: 0.14382112 +/- 2.7244
Semi-Major Axis: 44.49666588 +/- 23.6081
Time of Perihelion: 2480773.8437 +/- 42856.7
Perihelion: 38.09710537 +/- 122.9012
Aphelion: 50.89622639 +/- 124.1988
Period (y) 296.8243 +/- 236.22
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -43.46699221 +/- 1.5975
Ecliptic Y 3.44330253 +/- 0.1028
Ecliptic Z 0.90920171 +/- 0.0340
Ecliptic XDOT 0.00016479 +/- 0.0072
Ecliptic YDOT -0.00261925 +/- 0.0003
Ecliptic ZDOT -0.00017941 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 43.61264028 +/- 1.5922
Geocenter to KBO 42.86532347 +/- 1.6012
# Hcoef: 9.22
The following table shows the complete astrometric record for 19CO33. 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 (19CO33) followed by the observatory code and reference code for the source of the astrometry.
2019 02 04.58665 11 48 25.86 +02 34 39.7 25.8g 19CO33 T09 C~8swX 2019 02 04.63104 11 48 25.68 +02 34 40.9 26.2g 19CO33 T09 C~8swX 2019 02 04.66041 11 48 25.60 +02 34 41.4 26.1g 19CO33 T09 C~8swX 2019 02 05.45522 11 48 23.14 +02 34 57.4 25.3i 19CO33 T09 C~8swX 2019 02 05.47125 11 48 23.10 +02 34 57.7 24.6i 19CO33 T09 C~8swX 2019 02 05.50891 11 48 23.00 +02 34 58.5 25.2i 19CO33 T09 C~8swX 2019 02 05.51157 11 48 22.98 +02 34 59.0 25.3i 19CO33 T09 C~8swX 2019 03 08.35813 11 46 24.65 +02 47 43.1 26.2r 19CO33 T09 C~8swX 2019 03 08.40222 11 46 24.46 +02 47 44.5 25.9r 19CO33 T09 C~8swX 2019 03 08.43394 11 46 24.33 +02 47 45.3 25.6r 19CO33 T09 C~8swX
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 0.38 0.00 0.06
2 0.0001 -2.95 -0.30 0.03 0.09
3 0.0002 -4.25 -0.09 0.01 0.08
4 0.0024 -44.44 -0.17 0.05 -0.25
5 0.0024 -45.11 -0.01 0.08 -0.21
6 0.0025 -46.80 0.27 0.22 -0.06
7 0.0025 -47.27 -0.07 0.56 0.28
8 0.0870 -1977.97 -0.03 -2.37 -0.13
9 0.0871 -1981.14 -0.06 -2.21 0.07
10 0.0872 -1983.24 0.09 -2.25 0.06
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.
19CO33 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