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: 14SW403 # Created Fri Nov 22 02:10:03 2024 # Orbit generated from Bernstein formalism # Fitting 12 observations of 12 # Arc: 4.18y # First observation: 2014/09/25 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: 0.000362 0.030945 0.000133 0.013162 0.029596 0.000000 # Chi-squared of fit: 5.15 DOF: 18 RMS: 0.12 # Min/Max residuals: -0.29 0.27 # Exact a, adot, b, bdot, g, gdot: 1.615756E-05 3.105625E-02 6.906661E-06 1.325062E-02 2.931429E-02 -1.709966E-03 # Covariance matrix: 6.6503E-13 -4.7297E-13 1.4365E-13 -1.8044E-13 -1.9848E-14 -2.7677E-12 -4.7297E-13 6.0817E-13 -2.5659E-13 3.2331E-13 5.8406E-15 4.9399E-12 1.4365E-13 -2.5659E-13 6.2705E-13 -3.4223E-13 5.7870E-14 -2.5062E-12 -1.8044E-13 3.2331E-13 -3.4223E-13 2.9573E-13 -9.6250E-14 3.1947E-12 -1.9848E-14 5.8406E-15 5.7870E-14 -9.6250E-14 6.8509E-13 -1.0236E-12 -2.7677E-12 4.9399E-12 -2.5062E-12 3.1947E-12 -1.0236E-12 4.8107E-11 # lat0 lon0 xBary yBary zBary JD0 -27.612305 -3.019819 -0.084046 -0.464228 -0.887848 2456925.705528 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 348.49134 +/- 0.054 Argument of Peri: 324.67030 +/- 0.079 Long of Asc Node: 43.62592 +/- 0.001 Inclination: 34.92024 +/- 0.000 Eccentricity: 0.18096959 +/- 0.0001 Semi-Major Axis: 42.45707767 +/- 0.0065 Time of Perihelion: 2460150.8228 +/- 15.1 Perihelion: 34.77363792 +/- 0.0065 Aphelion: 50.14051741 +/- 0.0085 Period (y) 276.6517 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 31.18838359 +/- 0.0009 Ecliptic Y -1.55940776 +/- 0.0001 Ecliptic Z -15.81075024 +/- 0.0004 Ecliptic XDOT 0.00057963 +/- 0.0000 Ecliptic YDOT 0.00286916 +/- 0.0000 Ecliptic ZDOT 0.00117074 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 35.00181205 +/- 0.0008 Geocenter to KBO 34.11305265 +/- 0.0010 # Hcoef: 8.09
The following table shows the complete astrometric record for 14SW403. 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 (14SW403) followed by the observatory code and reference code for the source of the astrometry.
2014 09 25.20475 00 36 20.990 -26 20 49.82 23.4r 14SW403 W84 C~55S9 2014 11 17.12093 00 31 28.107 -26 21 36.55 24.1r 14SW403 W84 C~55S9 2016 09 05.35501 00 49 08.016 -23 11 24.18 23.7r 14SW403 W84 C~55S9 2016 09 05.35638 00 49 07.999 -23 11 24.11 24.0g 14SW403 W84 C~55S9 2016 09 06.38504 00 49 02.705 -23 12 05.40 24.1g 14SW403 W84 C~55S9 2016 09 07.20141 00 48 58.432 -23 12 38.00 22.9z 14SW403 W84 C~55S9 2016 10 08.16175 00 45 57.842 -23 28 00.55 23.6r 14SW403 W84 C~55S9 2016 10 08.16311 00 45 57.844 -23 28 00.45 23.3i 14SW403 W84 C~55S9 2016 10 28.13946 00 44 00.509 -23 30 46.76 23.7g 14SW403 W84 C~55S9 2017 10 30.12079 00 49 10.964 -22 01 04.98 23.1z 14SW403 W84 C~55S9 2018 11 29.07691 00 52 11.156 -20 23 23.72 23.5r 14SW403 W84 C~55S9 2018 11 29.07829 00 52 11.154 -20 23 23.76 24.0g 14SW403 W84 C~55S9
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 0.12 0.00 0.05
2 0.1449 -3557.92 -0.11 1686.52 -0.09
3 1.9470 14493.16 0.03 5395.14 0.09
4 1.9470 14492.99 -0.03 5395.31 0.27
5 1.9498 14408.73 0.17 5392.52 -0.04
6 1.9521 14341.07 -0.29 5390.90 -0.12
7 2.0368 11697.60 0.01 5718.85 -0.04
8 2.0368 11697.67 0.20 5718.92 0.00
9 2.0915 10181.77 -0.09 6309.61 -0.12
10 3.0963 16504.19 -0.05 9131.75 0.03
11 4.1776 21523.67 0.02 13186.34 0.03
12 4.1776 21523.63 0.02 13186.31 -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.
14SW403 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 42.790 42.811 42.769 ecceobj 0.187 0.188 0.187 incobj 34.895 34.896 34.895 qmin 33.677 33.681 33.653 qmax 52.011 51.998 51.942 amean 42.641 42.678 42.618 amin 42.262 42.304 42.254 amax 43.077 43.103 43.036 emean 0.187 0.188 0.186 emin 0.167 0.169 0.165 emax 0.208 0.208 0.207 imean 34.045 34.044 34.046 imin 33.559 33.562 33.549 imax 34.498 34.481 34.488 excite_mean 0.590 0.591 0.590 fracstop 1.000 1.000 1.000 cjmean 2.644 2.644 2.644 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 169.9 172.8 169.5 kozaiamp 180.0 180.0 179.9