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: 19CR30
# Created Wed Nov 27 02:10:54 2024
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 31.82d
# First observation: 2019/02/04
# Last observation: 2019/03/08
Preliminary a, adot, b, bdot, g, gdot:
-0.000000 0.020717 -0.000000 0.000795 0.022455 0.000000
# WARNING MRQMIN stopped after 13 iterations -- oscilliatory solution
# WARNING Fitting with energy constraint
# Chi-squared of fit: 6.86 DOF: 19 RMS: 0.13
# Min/Max residuals: -0.28 0.24
# Exact a, adot, b, bdot, g, gdot:
1.249823E-05 1.724489E-02 1.864973E-07 8.332871E-04 2.173083E-02 -1.040531E-02
# Covariance matrix:
2.1542E-12 3.6618E-09 -7.6221E-14 -4.6297E-11 6.5386E-10 7.4415E-09
3.6618E-09 6.9569E-06 -1.4409E-10 -8.8074E-08 1.2383E-06 1.2252E-05
-7.6221E-14 -1.4409E-10 2.1630E-13 -6.7778E-13 -2.5697E-11 -2.8351E-10
-4.6297E-11 -8.8074E-08 -6.7778E-13 1.1840E-09 -1.5664E-08 -1.4669E-07
6.5386E-10 1.2383E-06 -2.5697E-11 -1.5664E-08 2.2067E-07 2.3277E-06
7.4415E-09 1.2252E-05 -2.8351E-10 -1.4669E-07 2.3277E-06 1.1126E-04
# lat0 lon0 xBary yBary zBary JD0
1.572094 175.820163 0.649203 0.020636 -0.749586 2458519.085351
# Heliocentric elements and errors
Epoch: 2458510.5000 = 2019/01/27
Mean Anomaly: 302.88317 +/- 53.855
Argument of Peri: 148.82390 +/- 21.300
Long of Asc Node: 146.09372 +/- 4.722
Inclination: 3.19396 +/- 0.474
Eccentricity: 0.53039981 +/- 0.4213
Semi-Major Axis: 47.89992360 +/- 25.0564
Time of Perihelion: 2477722.0435 +/- 10044.9
Perihelion: 22.49381336 +/- 23.3617
Aphelion: 73.30603383 +/- 43.3331
Period (y) 331.5205 +/- 260.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -46.57745640 +/- 0.9917
Ecliptic Y 4.04689735 +/- 0.0725
Ecliptic Z 1.26247741 +/- 0.0273
Ecliptic XDOT 0.00115953 +/- 0.0013
Ecliptic YDOT -0.00226428 +/- 0.0003
Ecliptic ZDOT 0.00006877 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 46.76997618 +/- 0.9877
Geocenter to KBO 46.01756254 +/- 0.9948
# Hcoef: 8.37
The following table shows the complete astrometric record for 19CR30. 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 (19CR30) followed by the observatory code and reference code for the source of the astrometry.
2019 02 04.58455 11 47 09.31 +03 06 15.3 25.2g 19CR30 T09 C~83G8 2019 02 04.59733 11 47 09.26 +03 06 15.6 25.3g 19CR30 T09 C~83G8 2019 02 04.62894 11 47 09.18 +03 06 16.1 26.0g 19CR30 T09 C~83G8 2019 02 05.46858 11 47 06.68 +03 06 33.8 24.8i 19CR30 T09 C~83G8 2019 02 05.47125 11 47 06.66 +03 06 34.3 24.8i 19CR30 T09 C~83G8 2019 02 05.50891 11 47 06.55 +03 06 35.0 25.0i 19CR30 T09 C~83G8 2019 02 05.52237 11 47 06.50 +03 06 35.5 25.1i 19CR30 T09 C~83G8 2019 03 08.34835 11 45 13.25 +03 19 34.9 25.0r 19CR30 T09 C~83G8 2019 03 08.35813 11 45 13.22 +03 19 34.9 24.8r 19CR30 T09 C~83G8 2019 03 08.36859 11 45 13.18 +03 19 35.6 24.4r 19CR30 T09 C~83G8 2019 03 08.37068 11 45 13.16 +03 19 35.6 25.0r 19CR30 T09 C~83G8 2019 03 08.40222 11 45 13.04 +03 19 36.6 25.2r 19CR30 T09 C~83G8
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 0.01 0.00 0.09
2 0.0000 -0.81 -0.15 -0.02 0.05
3 0.0001 -2.10 0.13 -0.04 -0.02
4 0.0024 -43.50 0.24 1.33 -0.28
5 0.0024 -43.97 -0.10 1.67 0.05
6 0.0025 -45.76 0.03 1.65 -0.01
7 0.0026 -46.65 -0.17 1.82 0.13
8 0.0870 -1912.81 -0.11 43.66 -0.08
9 0.0870 -1913.23 0.15 43.48 -0.27
10 0.0870 -1914.05 0.04 43.88 0.13
11 0.0870 -1914.33 -0.10 43.77 0.01
12 0.0871 -1916.38 0.02 43.97 0.20
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.
19CR30 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