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: 14WD602 # Created Wed Apr 24 01:16:46 2024 # Orbit generated from Bernstein formalism # Fitting 21 observations of 21 # Arc: 3.02y # First observation: 2014/11/18 # Last observation: 2017/11/24 Preliminary a, adot, b, bdot, g, gdot: 0.000214 0.029012 0.000181 0.009789 0.028442 0.000000 # Chi-squared of fit: 4.39 DOF: 36 RMS: 0.08 # Min/Max residuals: -0.16 0.18 # Exact a, adot, b, bdot, g, gdot: 1.584983E-05 2.933748E-02 6.132419E-06 9.901463E-03 2.781226E-02 4.247264E-03 # Covariance matrix: 4.9670E-13 -4.2603E-13 3.0558E-14 -9.4441E-14 -2.1206E-13 -3.0213E-12 -4.2603E-13 1.1298E-12 -2.4256E-13 3.7229E-13 7.6463E-14 1.1540E-11 3.0558E-14 -2.4256E-13 3.3287E-13 -1.9999E-13 3.9046E-14 -2.7387E-12 -9.4441E-14 3.7229E-13 -1.9999E-13 1.9435E-13 5.3206E-15 4.0697E-12 -2.1206E-13 7.6463E-14 3.9046E-14 5.3206E-15 2.6553E-13 2.9392E-13 -3.0213E-12 1.1540E-11 -2.7387E-12 4.0697E-12 2.9392E-13 1.2588E-10 # lat0 lon0 xBary yBary zBary JD0 -34.853539 -12.612093 -0.917168 -0.211684 -0.304302 2456979.689768 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 36.50619 +/- 0.024 Argument of Peri: 240.46717 +/- 0.050 Long of Asc Node: 46.88532 +/- 0.001 Inclination: 39.11194 +/- 0.000 Eccentricity: 0.22228628 +/- 0.0004 Semi-Major Axis: 42.94286920 +/- 0.0103 Time of Perihelion: 2446547.3499 +/- 5.7 Perihelion: 33.39725872 +/- 0.0180 Aphelion: 52.48847968 +/- 0.0205 Period (y) 281.4134 +/- 0.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 29.35318064 +/- 0.0005 Ecliptic Y -5.62680424 +/- 0.0001 Ecliptic Z -20.54767377 +/- 0.0004 Ecliptic XDOT 0.00150473 +/- 0.0000 Ecliptic YDOT 0.00261680 +/- 0.0000 Ecliptic ZDOT 0.00056102 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 36.26950561 +/- 0.0005 Geocenter to KBO 35.95536731 +/- 0.0007 # Hcoef: 7.61
The following table shows the complete astrometric record for 14WD602. 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 (14WD602) followed by the observatory code and reference code for the source of the astrometry.
2014 11 18.18899 00 17 58.316 -36 33 18.79 23.5r 14WD602 W84 C~55TE 2014 12 11.07860 00 17 02.189 -36 12 58.09 24.1g 14WD602 W84 C~55TE 2014 12 12.11291 00 17 01.167 -36 11 52.23 23.3r 14WD602 W84 C~55TE 2015 08 17.31558 00 32 38.520 -34 56 29.19 24.4g 14WD602 W84 C~55TE 2015 08 24.30955 00 32 05.994 -35 02 16.09 22.9i 14WD602 W84 C~55TE 2015 08 24.31091 00 32 05.990 -35 02 16.17 22.9r 14WD602 W84 C~55TE 2015 08 24.31228 00 32 05.987 -35 02 16.06 23.9g 14WD602 W84 C~55TE 2016 09 07.27638 00 36 16.389 -33 51 46.01 22.8i 14WD602 W84 C~55TE 2016 09 07.27776 00 36 16.371 -33 51 46.25 23.2r 14WD602 W84 C~55TE 2016 10 07.17746 00 33 09.917 -34 04 46.91 23.6r 14WD602 W84 C~55TE 2016 10 07.17882 00 33 09.913 -34 04 47.02 22.9i 14WD602 W84 C~55TE 2016 10 07.18019 00 33 09.903 -34 04 46.96 23.8g 14WD602 W84 C~55TE 2016 10 11.02199 00 32 45.484 -34 05 21.18 22.7z 14WD602 W84 C~55TE 2016 11 08.22786 00 30 04.258 -34 00 48.04 22.2z 14WD602 W84 C~55TE 2017 10 13.27351 00 37 54.575 -32 45 01.48 22.9z 14WD602 W84 C~55TE 2017 11 18.10601 00 34 43.450 -32 36 36.42 23.4i 14WD602 W84 C~55TE 2017 11 18.10738 00 34 43.444 -32 36 36.38 23.6r 14WD602 W84 C~55TE 2017 11 18.10875 00 34 43.434 -32 36 36.35 23.3g 14WD602 W84 C~55TE 2017 11 24.17297 00 34 20.767 -32 32 48.26 23.6r 14WD602 W84 C~55TE 2017 11 24.17436 00 34 20.753 -32 32 48.03 22.8i 14WD602 W84 C~55TE 2017 11 24.17575 00 34 20.754 -32 32 48.25 24.1g 14WD602 W84 C~55TE
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 0.17 0.00 -0.10
2 0.0627 -5.18 -0.05 1396.25 0.08
3 0.0655 15.66 -0.10 1459.94 -0.01
4 0.7450 12197.66 0.07 -322.13 -0.16
5 0.7642 11674.63 -0.12 -413.72 0.05
6 0.7642 11674.55 -0.10 -413.76 0.02
7 0.7642 11674.58 0.03 -413.65 0.15
8 1.8045 16540.02 0.18 1601.01 0.05
9 1.8045 16539.70 -0.03 1600.92 -0.05
10 1.8863 14139.28 -0.02 2140.26 0.06
11 1.8864 14139.18 -0.01 2140.20 -0.05
12 1.8864 14139.10 0.01 2140.31 0.02
13 1.8969 13860.34 0.00 2267.74 -0.01
14 1.9741 12274.02 0.03 3531.54 -0.05
15 2.9024 19714.95 -0.12 4378.17 -0.13
16 3.0005 17907.99 0.06 6075.82 0.02
17 3.0005 17907.95 0.05 6075.90 0.02
18 3.0005 17907.85 -0.00 6075.99 0.03
19 3.0171 17780.68 0.01 6421.05 -0.03
20 3.0171 17780.65 0.00 6421.34 0.18
21 3.0171 17780.54 -0.08 6421.14 -0.10
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.
14WD602 quality flag:1 Type: SCATNEAR SCATEXTD CENTAURS axisobj 43.245 43.279 43.212 ecceobj 0.226 0.227 0.225 incobj 39.107 39.107 39.107 qmin 32.647 32.779 28.330 qmax 54.129 54.119 58.542 amean 43.143 43.210 43.126 amin 42.714 42.828 42.719 amax 43.578 43.641 43.621 emean 0.208 0.216 0.290 emin 0.179 0.191 0.206 emax 0.242 0.240 0.343 imean 38.537 38.462 36.811 imin 37.963 38.029 35.363 imax 39.106 38.994 38.586 excite_mean 0.657 0.659 0.667 fracstop 1.000 1.000 1.000 cjmean 2.530 2.529 2.531 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 175.4 179.1 173.8 kozaiamp 180.0 180.0 180.0