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: 14WZ601 # Created Sat Apr 20 01:16:51 2024 # Orbit generated from Bernstein formalism # Fitting 21 observations of 21 # Arc: 4.03y # First observation: 2014/11/18 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: 0.000191 0.034420 -0.000087 0.000468 0.028445 0.000000 # Chi-squared of fit: 8.80 DOF: 36 RMS: 0.11 # Min/Max residuals: -0.25 0.26 # Exact a, adot, b, bdot, g, gdot: 1.993434E-05 3.501943E-02 5.335881E-07 4.453054E-04 2.714137E-02 5.249699E-03 # Covariance matrix: 4.4666E-13 -3.4170E-13 5.2354E-15 -3.8551E-15 -1.0630E-13 -1.7074E-12 -3.4170E-13 4.8116E-13 -5.8873E-15 4.3575E-15 5.5861E-14 3.0650E-12 5.2354E-15 -5.8873E-15 2.9847E-13 -9.6799E-14 -1.3006E-14 -4.0968E-14 -3.8551E-15 4.3575E-15 -9.6799E-14 4.1263E-14 9.5022E-15 3.0323E-14 -1.0630E-13 5.5861E-14 -1.3006E-14 9.5022E-15 4.7839E-13 3.8779E-13 -1.7074E-12 3.0650E-12 -4.0968E-14 3.0323E-14 3.8779E-13 2.1345E-11 # lat0 lon0 xBary yBary zBary JD0 -28.019724 -8.197490 -0.885010 -0.207502 -0.390319 2456979.572228 # Heliocentric elements and errors Epoch: 2456970.5000 = 2014/11/09 Mean Anomaly: 4.98119 +/- 0.004 Argument of Peri: 246.63405 +/- 0.016 Long of Asc Node: 80.38535 +/- 0.001 Inclination: 27.72512 +/- 0.000 Eccentricity: 0.61615246 +/- 0.0002 Semi-Major Axis: 93.28634219 +/- 0.0395 Time of Perihelion: 2452416.8882 +/- 2.5 Perihelion: 35.80773298 +/- 0.0219 Aphelion: 150.76495140 +/- 0.0657 Period (y) 901.0218 +/- 0.57 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.75431567 +/- 0.0008 Ecliptic Y -3.82291969 +/- 0.0001 Ecliptic Z -17.30849730 +/- 0.0004 Ecliptic XDOT 0.00098302 +/- 0.0000 Ecliptic YDOT 0.00342181 +/- 0.0000 Ecliptic ZDOT -0.00020902 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.24303947 +/- 0.0008 Geocenter to KBO 36.84412001 +/- 0.0009 # Hcoef: 7.48
The following table shows the complete astrometric record for 14WZ601. 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 (14WZ601) followed by the observatory code and reference code for the source of the astrometry.
2014 11 18.07145 00 18 40.864 -28 45 21.42 23.4r 14WZ601 W84 C~55TD 2014 11 18.07419 00 18 40.843 -28 45 21.32 23.3i 14WZ601 W84 C~55TD 2014 11 21.13615 00 18 32.262 -28 43 54.10 22.9r 14WZ601 W84 C~55TD 2016 01 01.05729 00 26 03.456 -27 17 43.38 23.3i 14WZ601 W84 C~55TD 2016 01 01.07477 00 26 03.483 -27 17 42.00 23.5r 14WZ601 W84 C~55TD 2016 09 06.39437 00 40 14.602 -26 38 06.09 23.1r 14WZ601 W84 C~55TD 2016 09 06.39851 00 40 14.625 -26 38 06.26 22.3z 14WZ601 W84 C~55TD 2016 10 29.25596 00 35 44.234 -26 56 45.22 22.7r 14WZ601 W84 C~55TD 2016 11 05.23816 00 35 13.244 -26 55 58.18 23.2i 14WZ601 W84 C~55TD 2016 11 06.22145 00 35 09.105 -26 55 47.59 24.4g 14WZ601 W84 C~55TD 2017 10 30.04187 00 43 16.128 -25 58 18.64 22.7z 14WZ601 W84 C~55TD 2017 11 09.21268 00 42 31.530 -25 57 08.00 23.2i 14WZ601 W84 C~55TD 2017 11 17.15061 00 42 01.508 -25 55 00.72 23.4r 14WZ601 W84 C~55TD 2017 11 17.15199 00 42 01.489 -25 55 00.94 23.6g 14WZ601 W84 C~55TD 2017 11 24.08812 00 41 39.411 -25 52 18.02 23.4i 14WZ601 W84 C~55TD 2017 11 24.17008 00 41 39.173 -25 52 15.94 23.4g 14WZ601 W84 C~55TD 2018 09 21.24515 00 53 56.680 -24 47 32.00 22.4z 14WZ601 W84 C~55TD 2018 11 15.15611 00 49 29.257 -24 57 08.33 23.7i 14WZ601 W84 C~55TD 2018 11 15.19953 00 49 29.091 -24 57 07.77 23.6i 14WZ601 W84 C~55TD 2018 11 29.10036 00 48 44.540 -24 51 53.67 23.5r 14WZ601 W84 C~55TD 2018 11 29.10174 00 48 44.528 -24 51 53.78 23.9g 14WZ601 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 0.10 0.00 -0.06
2 0.0000 -0.20 -0.04 0.21 0.04
3 0.0084 -61.88 -0.05 128.82 0.08
4 1.1197 7616.49 -0.10 2009.05 -0.25
5 1.1198 7617.45 0.06 2010.11 0.06
6 1.8024 18806.24 -0.24 -1314.34 0.14
7 1.8024 18806.43 0.26 -1314.64 -0.14
8 1.9471 15071.23 -0.02 -538.84 -0.04
9 1.9662 14728.31 0.14 -298.22 0.04
10 1.9689 14684.57 -0.15 -262.32 0.15
11 2.9486 22136.52 -0.11 -426.31 -0.09
12 2.9764 21642.11 0.17 -66.86 0.12
13 2.9982 21348.62 0.09 244.49 -0.01
14 2.9982 21348.28 -0.20 244.42 -0.13
15 3.0172 21166.55 0.06 533.95 0.10
16 3.0174 21164.75 0.04 537.36 -0.05
17 3.8417 31943.76 0.10 -1113.17 0.04
18 3.9920 28439.84 -0.05 247.35 0.11
19 3.9921 28438.14 -0.11 248.99 -0.02
20 4.0302 28064.78 0.10 830.18 -0.02
21 4.0302 28064.58 -0.07 830.17 -0.09
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.
14WZ601 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 95.370 95.503 95.237 ecceobj 0.625 0.625 0.624 incobj 27.743 27.743 27.743 qmin 34.761 34.809 34.736 qmax 157.735 158.537 157.669 amean 94.333 94.736 93.933 amin 92.737 92.769 91.865 amax 96.732 97.339 96.650 emean 0.615 0.615 0.612 emin 0.597 0.598 0.591 emax 0.632 0.632 0.632 imean 26.906 26.993 26.999 imin 25.924 25.940 25.867 imax 28.240 28.253 28.479 excite_mean 0.763 0.765 0.762 fracstop 1.000 1.000 1.000 cjmean 2.809 2.809 2.809 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 193.4 200.7 182.8 kozaiamp 180.0 180.0 180.0