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: 19CC31
# Created Wed Jul 17 01:11:37 2024
# Orbit generated from Bernstein formalism
# Fitting 13 observations of 13
# Arc: 59.02d
# First observation: 2019/02/05
# Last observation: 2019/04/05
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.016140 -0.000001 -0.005205 0.020703 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 6.83 DOF: 21 RMS: 0.13
# Min/Max residuals: -0.20 0.31
# Exact a, adot, b, bdot, g, gdot:
1.350998E-05 1.849150E-02 -4.697709E-06 -5.238916E-03 2.098093E-02 -4.708289E-03
# Covariance matrix:
1.0393E-11 1.3678E-08 -3.8793E-13 -4.3014E-10 2.4958E-09 4.2553E-08
1.3678E-08 1.8664E-05 -5.2907E-10 -5.8660E-07 3.4041E-06 5.7774E-05
-3.8793E-13 -5.2907E-10 3.7920E-13 1.4398E-11 -9.6700E-11 -1.7087E-09
-4.3014E-10 -5.8660E-07 1.4398E-11 1.8527E-08 -1.0725E-07 -1.9088E-06
2.4958E-09 3.4041E-06 -9.6700E-11 -1.0725E-07 6.2189E-07 1.0889E-05
4.2553E-08 5.7774E-05 -1.7087E-09 -1.9088E-06 1.0889E-05 3.0280E-04
# lat0 lon0 xBary yBary zBary JD0
4.848326 -176.122347 0.736649 0.056208 -0.661908 2458520.062551
# Heliocentric elements and errors
Epoch: 2458520.5000 = 2019/02/06
Mean Anomaly: 304.50873 +/- 38.683
Argument of Peri: 248.34988 +/- 90.360
Long of Asc Node: 19.42473 +/- 3.431
Inclination: 16.48819 +/- 3.208
Eccentricity: 0.26955168 +/- 0.8753
Semi-Major Axis: 53.23583520 +/- 18.0403
Time of Perihelion: 2480389.3859 +/- 10432.6
Perihelion: 38.88602645 +/- 48.4237
Aphelion: 67.58564396 +/- 51.9207
Period (y) 388.4314 +/- 197.44
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -48.09460135 +/- 1.7810
Ecliptic Y -2.52978563 +/- 0.1206
Ecliptic Z 4.02810311 +/- 0.1514
Ecliptic XDOT 0.00072437 +/- 0.0023
Ecliptic YDOT -0.00237164 +/- 0.0006
Ecliptic ZDOT -0.00073333 +/- 0.0002
# Distances at JD0 (AU)
Heliocenter to KBO 48.32924693 +/- 1.7724
Geocenter to KBO 47.66233959 +/- 1.7915
# Hcoef: 7.04
The following table shows the complete astrometric record for 19CC31. 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 (19CC31) followed by the observatory code and reference code for the source of the astrometry.
2019 02 05.56175 12 21 56.14 +02 54 30.4 23.6i 19CC31 T09 C~870W 2019 02 05.58976 12 21 56.06 +02 54 30.7 23.7i 19CC31 T09 C~870W 2019 02 05.60340 12 21 56.02 +02 54 31.1 23.5i 19CC31 T09 C~870W 2019 02 05.63031 12 21 55.96 +02 54 31.4 23.7i 19CC31 T09 C~870W 2019 04 04.45230 12 18 29.73 +03 15 48.2 24.3g 19CC31 T09 C~870W 2019 04 04.47412 12 18 29.62 +03 15 48.5 24.4g 19CC31 T09 C~870W 2019 04 04.49512 12 18 29.55 +03 15 49.0 24.4g 19CC31 T09 C~870W 2019 04 04.49722 12 18 29.55 +03 15 49.4 24.3g 19CC31 T09 C~870W 2019 04 04.51607 12 18 29.46 +03 15 49.4 24.5g 19CC31 T09 C~870W 2019 04 05.53706 12 18 25.40 +03 16 11.5 24.1r 19CC31 T09 C~870W 2019 04 05.55801 12 18 25.30 +03 16 11.7 23.6r 19CC31 T09 C~870W 2019 04 05.56011 12 18 25.30 +03 16 11.9 23.4r 19CC31 T09 C~870W 2019 04 05.57896 12 18 25.24 +03 16 12.0 23.5r 19CC31 T09 C~870W
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 0.15
2 0.0001 -1.22 0.01 -0.20 -0.08
3 0.0001 -1.93 -0.14 -0.07 0.03
4 0.0002 -2.87 0.02 -0.15 -0.09
5 0.1585 -3345.16 0.09 -54.66 0.08
6 0.1586 -3346.79 -0.14 -55.04 -0.20
7 0.1586 -3347.95 0.05 -54.99 -0.06
8 0.1586 -3348.11 0.03 -54.62 0.31
9 0.1587 -3349.35 0.00 -55.16 -0.14
10 0.1615 -3413.94 -0.04 -58.99 0.19
11 0.1615 -3415.40 -0.16 -59.40 -0.13
12 0.1615 -3415.48 -0.10 -59.21 0.07
13 0.1616 -3416.34 0.23 -59.48 -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.