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: 14WA602 # Created Wed Apr 17 01:16:44 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 3.94y # First observation: 2014/11/18 # Last observation: 2018/10/28 Preliminary a, adot, b, bdot, g, gdot: -0.000325 0.025601 0.000052 -0.003975 0.025698 0.000000 # Chi-squared of fit: 4.31 DOF: 30 RMS: 0.09 # Min/Max residuals: -0.21 0.18 # Exact a, adot, b, bdot, g, gdot: 1.606863E-05 2.533061E-02 -2.689542E-06 -3.949839E-03 2.470843E-02 1.512343E-04 # Covariance matrix: 4.6926E-13 -3.3613E-13 -3.3741E-14 3.8664E-14 -1.6202E-13 -2.1296E-12 -3.3613E-13 4.0712E-13 4.5380E-14 -6.5637E-14 8.8471E-14 3.1144E-12 -3.3741E-14 4.5380E-14 3.0067E-13 -1.1241E-13 2.9230E-14 4.1510E-13 3.8664E-14 -6.5637E-14 -1.1241E-13 6.4073E-14 7.4222E-16 -5.5748E-13 -1.6202E-13 8.8471E-14 2.9230E-14 7.4222E-16 4.6532E-13 1.2166E-12 -2.1296E-12 3.1144E-12 4.1510E-13 -5.5748E-13 1.2166E-12 2.7700E-11 # lat0 lon0 xBary yBary zBary JD0 -29.955113 -13.219991 -0.920586 -0.180673 -0.313875 2456979.615518 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 12.19647 +/- 0.088 Argument of Peri: 240.65007 +/- 0.112 Long of Asc Node: 94.44232 +/- 0.001 Inclination: 30.70048 +/- 0.000 Eccentricity: 0.11136308 +/- 0.0001 Semi-Major Axis: 45.74239731 +/- 0.0061 Time of Perihelion: 2453142.1774 +/- 27.7 Perihelion: 40.64838291 +/- 0.0076 Aphelion: 50.83641170 +/- 0.0086 Period (y) 309.3760 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.69690068 +/- 0.0009 Ecliptic Y -7.20408870 +/- 0.0002 Ecliptic Z -20.20869328 +/- 0.0006 Ecliptic XDOT 0.00043901 +/- 0.0000 Ecliptic YDOT 0.00277410 +/- 0.0000 Ecliptic ZDOT -0.00038747 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.79417967 +/- 0.0009 Geocenter to KBO 40.47202117 +/- 0.0011 # Hcoef: 7.33
The following table shows the complete astrometric record for 14WA602. 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 (14WA602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 18.11474 00 04 34.305 -32 28 30.72 23.4i 14WA602 W84 C~55TD 2014 11 18.17750 00 04 34.135 -32 28 29.07 23.7r 14WA602 W84 C~55TD 2014 11 25.10876 00 04 18.361 -32 25 00.03 24.2g 14WA602 W84 C~55TD 2015 09 03.26995 00 17 01.744 -31 47 33.09 22.8z 14WA602 W84 C~55TD 2016 09 07.38021 00 23 09.359 -31 19 39.94 22.8i 14WA602 W84 C~55TD 2016 09 07.38159 00 23 09.352 -31 19 39.96 23.5r 14WA602 W84 C~55TD 2016 09 07.38295 00 23 09.351 -31 19 39.80 23.8g 14WA602 W84 C~55TD 2016 11 05.10673 00 18 19.416 -31 34 21.68 23.7r 14WA602 W84 C~55TD 2016 11 05.10811 00 18 19.412 -31 34 21.61 23.2i 14WA602 W84 C~55TD 2016 11 05.10949 00 18 19.407 -31 34 21.42 24.4g 14WA602 W84 C~55TD 2016 11 23.02749 00 17 22.041 -31 27 58.49 22.7i 14WA602 W84 C~55TD 2016 11 28.13980 00 17 10.891 -31 25 15.43 23.4r 14WA602 W84 C~55TD 2016 11 28.14117 00 17 10.891 -31 25 15.44 23.7g 14WA602 W84 C~55TD 2017 10 20.17137 00 25 57.832 -31 04 08.78 24.1g 14WA602 W84 C~55TD 2018 09 17.36413 00 35 10.620 -30 19 51.78 23.6r 14WA602 W84 C~55TD 2018 09 17.36549 00 35 10.614 -30 19 51.73 23.6i 14WA602 W84 C~55TD 2018 09 17.36687 00 35 10.596 -30 19 51.99 23.7g 14WA602 W84 C~55TD 2018 10 28.23291 00 31 43.065 -30 31 42.53 23.1i 14WA602 W84 C~55TD
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 0.03 0.00 0.03
2 0.0002 -1.15 -0.02 2.45 -0.02
3 0.0191 -82.69 0.03 279.80 0.06
4 0.7917 9537.06 -0.13 -2314.74 -0.01
5 1.8050 14469.78 -0.00 -3165.55 -0.09
6 1.8050 14469.69 0.01 -3165.52 -0.06
7 1.8050 14469.76 0.18 -3165.37 0.09
8 1.9658 10791.18 0.02 -2104.66 -0.07
9 1.9658 10791.17 0.06 -2104.58 -0.04
10 1.9658 10791.20 0.15 -2104.38 0.11
11 2.0148 10334.92 -0.13 -1412.13 -0.10
12 2.0288 10289.04 -0.03 -1200.05 0.05
13 2.0288 10289.04 -0.03 -1200.06 -0.01
14 2.9214 16821.50 -0.21 -3440.63 -0.00
15 3.8309 24385.98 0.01 -4815.00 -0.02
16 3.8309 24385.94 0.07 -4814.92 0.06
17 3.8309 24385.60 -0.16 -4815.02 -0.05
18 3.9428 21685.33 0.15 -4028.83 0.07
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.
14WA602 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 46.147 46.166 46.128 ecceobj 0.119 0.120 0.119 incobj 30.712 30.712 30.712 qmin 40.074 40.035 40.095 qmax 52.122 52.171 52.114 amean 45.961 45.980 45.943 amin 45.589 45.614 45.574 amax 46.356 46.379 46.344 emean 0.111 0.112 0.111 emin 0.098 0.099 0.098 emax 0.125 0.125 0.125 imean 29.148 29.148 29.147 imin 28.877 28.877 28.883 imax 29.385 29.395 29.378 excite_mean 0.500 0.500 0.500 fracstop 1.000 1.000 1.000 cjmean 2.800 2.800 2.800 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 181.8 181.9 181.8 kozaiamp 179.9 180.0 180.0