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: 19CV30 # Created Sun Dec 22 02:11:04 2024 # Orbit generated from Bernstein formalism # Fitting 16 observations of 16 # Arc: 3.97y # First observation: 2015/03/20 # Last observation: 2019/03/08 Preliminary a, adot, b, bdot, g, gdot: -0.000044 0.021736 -0.000014 0.007685 0.023495 0.000000 # Chi-squared of fit: 4.10 DOF: 26 RMS: 0.09 # Min/Max residuals: -0.18 0.28 # Exact a, adot, b, bdot, g, gdot: 1.455436E-05 2.158627E-02 5.269907E-06 7.636010E-03 2.346993E-02 -1.250475E-03 # Covariance matrix: 4.8769E-13 -2.6052E-13 4.3621E-15 -4.7328E-14 -1.2046E-13 -1.5615E-12 -2.6052E-13 2.0531E-12 -6.7725E-14 7.3569E-13 2.8731E-12 2.4268E-11 4.3621E-15 -6.7725E-14 4.7698E-13 -1.4908E-13 -1.0110E-13 -8.2143E-13 -4.7328E-14 7.3569E-13 -1.4908E-13 3.1072E-13 1.0993E-12 8.9244E-12 -1.2046E-13 2.8731E-12 -1.0110E-13 1.0993E-12 5.5582E-12 3.6257E-11 -1.5615E-12 2.4268E-11 -8.2143E-13 8.9244E-12 3.6257E-11 2.9438E-10 # lat0 lon0 xBary yBary zBary JD0 -1.026688 169.167083 -0.174815 -0.017381 -0.977041 2457101.941380 # Heliocentric elements and errors Epoch: 2457100.5000 = 2015/03/19 Mean Anomaly: 322.64777 +/- 0.298 Argument of Peri: 40.10414 +/- 0.367 Long of Asc Node: 172.23815 +/- 0.000 Inclination: 19.46454 +/- 0.001 Eccentricity: 0.07679869 +/- 0.0007 Semi-Major Axis: 46.30496390 +/- 0.0180 Time of Perihelion: 2469041.8610 +/- 95.0 Perihelion: 42.74880310 +/- 0.0351 Aphelion: 49.86112470 +/- 0.0365 Period (y) 315.1008 +/- 0.18 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -42.83759384 +/- 0.0042 Ecliptic Y 8.01842306 +/- 0.0008 Ecliptic Z -0.76321071 +/- 0.0001 Ecliptic XDOT -0.00034910 +/- 0.0000 Ecliptic YDOT -0.00250344 +/- 0.0000 Ecliptic ZDOT 0.00089333 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.58826729 +/- 0.0041 Geocenter to KBO 42.60771728 +/- 0.0043 # Hcoef: 7.59
The following table shows the complete astrometric record for 19CV30. 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 (19CV30) followed by the observatory code and reference code for the source of the astrometry.
2015 03 20.440602 11 18 33.46 +03 20 33.9 19CV30 T14 C~870W 2015 03 20.443892 11 18 33.45 +03 20 34.0 19CV30 T14 C~870W 2015 03 20.447201 11 18 33.43 +03 20 34.2 19CV30 T14 C~870W 2018 03 18.456318 11 34 30.39 +03 04 14.9 19CV30 T09 C~870W 2018 04 24.482672 11 32 10.11 +03 22 06.3 19CV30 T09 C~870W 2019 02 04.58246 11 42 32.20 +02 37 39.0 25.2g 19CV30 T09 C~85K8 2019 02 04.58455 11 42 32.19 +02 37 39.0 24.9g 19CV30 T09 C~85K8 2019 02 04.61629 11 42 32.08 +02 37 39.8 24.8g 19CV30 T09 C~85K8 2019 02 04.65831 11 42 31.95 +02 37 40.8 24.9g 19CV30 T09 C~85K8 2019 03 02.42751 11 40 56.97 +02 50 10.4 22.9y 19CV30 T09 C~85K8 2019 03 02.55653 11 40 56.43 +02 50 14.4 23.4y 19CV30 T09 C~85K8 2019 03 02.61089 11 40 56.22 +02 50 16.1 23.3y 19CV30 T09 C~85K8 2019 03 08.35603 11 40 32.08 +02 53 20.6 23.8r 19CV30 T09 C~85K8 2019 03 08.40012 11 40 31.90 +02 53 22.3 23.6r 19CV30 T09 C~85K8 2019 03 08.42975 11 40 31.77 +02 53 23.1 23.5r 19CV30 T09 C~85K8 2019 03 08.43185 11 40 31.77 +02 53 23.3 23.7r 19CV30 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 -0.00 0.00 -0.03
2 0.0000 -0.18 0.06 0.03 -0.01
3 0.0000 -0.53 -0.06 0.10 0.05
4 2.9953 13584.16 -0.05 4742.22 -0.04
5 3.0966 11221.89 0.09 4896.01 -0.03
6 3.8799 20900.30 0.10 6146.59 0.10
7 3.8799 20900.17 0.07 6146.53 0.03
8 3.8800 20898.32 -0.07 6146.61 -0.03
9 3.8801 20896.11 -0.02 6146.75 -0.08
10 3.9507 19276.73 -0.10 6269.38 0.00
11 3.9510 19267.63 0.01 6269.84 -0.06
12 3.9512 19264.04 0.28 6270.15 0.02
13 3.9669 18855.28 -0.13 6295.84 -0.18
14 3.9670 18852.10 -0.10 6296.33 0.13
15 3.9671 18849.98 -0.06 6296.29 -0.03
16 3.9671 18849.90 0.01 6296.48 0.15
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.
19CV30 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 45.913 45.960 45.866 ecceobj 0.070 0.071 0.068 incobj 19.553 19.553 19.553 qmin 42.080 42.043 42.091 qmax 50.326 50.433 50.183 amean 46.069 46.117 46.021 amin 45.712 45.746 45.660 amax 46.450 46.494 46.396 emean 0.072 0.074 0.071 emin 0.062 0.063 0.060 emax 0.084 0.085 0.082 imean 19.034 19.033 19.034 imin 18.766 18.760 18.765 imax 19.331 19.328 19.330 excite_mean 0.334 0.334 0.334 fracstop 1.000 1.000 1.000 cjmean 2.986 2.987 2.986 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 175.6 175.9 175.2 kozaiamp 180.0 179.9 180.0