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: 14WE556 # Created Tue Jan 21 02:10:24 2025 # Orbit generated from Bernstein formalism # Fitting 24 observations of 24 # Arc: 4.20y # First observation: 2014/09/16 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: 0.000462 0.032722 -0.000179 -0.008920 0.027879 0.000000 # Chi-squared of fit: 4.11 DOF: 42 RMS: 0.07 # Min/Max residuals: -0.20 0.16 # Exact a, adot, b, bdot, g, gdot: 1.975468E-05 3.271477E-02 -5.876970E-06 -8.910624E-03 2.752535E-02 -3.241398E-03 # Covariance matrix: 2.9679E-13 -2.2342E-13 -4.1564E-14 4.3643E-14 1.0775E-13 -1.5424E-12 -2.2342E-13 4.3092E-13 4.9503E-14 -1.0496E-13 -2.6433E-14 3.7760E-12 -4.1564E-14 4.9503E-14 1.9636E-13 -7.2979E-14 -4.5518E-14 4.6645E-13 4.3643E-14 -1.0496E-13 -7.2979E-14 5.7266E-14 8.4931E-15 -9.8806E-13 1.0775E-13 -2.6433E-14 -4.5518E-14 8.4931E-15 1.9358E-13 -2.5092E-13 -1.5424E-12 3.7760E-12 4.6645E-13 -9.8806E-13 -2.5092E-13 3.5544E-11 # lat0 lon0 xBary yBary zBary JD0 -28.431036 -8.049146 -0.018731 -0.479705 -0.886348 2456916.723918 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 353.65215 +/- 0.011 Argument of Peri: 261.90696 +/- 0.033 Long of Asc Node: 112.29957 +/- 0.001 Inclination: 31.30036 +/- 0.000 Eccentricity: 0.44904369 +/- 0.0001 Semi-Major Axis: 66.47412161 +/- 0.0094 Time of Perihelion: 2460401.1129 +/- 5.9 Perihelion: 36.62433676 +/- 0.0070 Aphelion: 96.32390646 +/- 0.0145 Period (y) 541.9848 +/- 0.12 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.63180406 +/- 0.0005 Ecliptic Y -4.59396353 +/- 0.0001 Ecliptic Z -17.29701093 +/- 0.0003 Ecliptic XDOT -0.00024762 +/- 0.0000 Ecliptic YDOT 0.00331623 +/- 0.0000 Ecliptic ZDOT -0.00062580 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.21727723 +/- 0.0005 Geocenter to KBO 36.33014868 +/- 0.0006 # Hcoef: 7.63
The following table shows the complete astrometric record for 14WE556. 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 (14WE556) followed by the observatory code and reference code for the source of the astrometry.
2014 09 16.22314 00 20 03.597 -29 03 52.19 22.8i 14WE556 W84 C~4yVL 2014 11 15.01751 00 15 19.143 -29 14 40.96 23.1i 14WE556 W84 C~4yVL 2014 11 18.12940 00 15 09.98 -29 13 35.4 23.5g 14WE556 W84 C~3cpT 2014 11 18.13077 00 15 09.972 -29 13 35.49 23.7r 14WE556 W84 C~4yVL 2014 11 21.13615 00 15 02.005 -29 12 23.12 23.5r 14WE556 W84 C~4yVL 2014 11 21.14206 00 15 01.994 -29 12 22.96 22.8i 14WE556 W84 C~4yVL 2014 12 12.07359 00 14 32.881 -29 00 13.01 22.9i 14WE556 W84 C~4yVL 2014 12 13.07205 00 14 32.709 -28 59 29.21 23.8r 14WE556 W84 C~4yVL 2016 08 14.38661 00 39 41.610 -27 46 17.39 23.1r 14WE556 W84 C~4yVL 2016 08 14.38798 00 39 41.612 -27 46 17.42 23.4i 14WE556 W84 C~4yVL 2016 08 14.38935 00 39 41.588 -27 46 17.43 24.1g 14WE556 W84 C~4yVL 2016 08 26.39682 00 38 59.198 -27 57 02.34 23.1z 14WE556 W84 C~4yVL 2016 11 06.22419 00 33 03.185 -28 28 31.77 23.4r 14WE556 W84 C~4yVL 2016 11 06.22558 00 33 03.186 -28 28 31.65 23.9g 14WE556 W84 C~4yVL 2017 09 24.23315 00 45 21.080 -27 49 41.52 23.4g 14WE556 W84 C~4yVL 2017 09 24.23453 00 45 21.070 -27 49 41.53 23.2r 14WE556 W84 C~4yVL 2017 09 24.23591 00 45 21.060 -27 49 41.57 23.4i 14WE556 W84 C~4yVL 2017 09 26.34959 00 45 09.830 -27 50 56.41 24.0g 14WE556 W84 C~4yVL 2017 11 15.02422 00 41 05.247 -27 59 26.49 22.8z 14WE556 W84 C~4yVL 2017 11 26.17719 00 40 29.726 -27 55 23.61 23.5i 14WE556 W84 C~4yVL 2017 12 09.04570 00 40 03.858 -27 48 12.36 23.3r 14WE556 W84 C~4yVL 2018 11 15.12889 00 49 39.020 -27 30 01.56 23.0i 14WE556 W84 C~4yVL 2018 11 29.12106 00 48 53.274 -27 24 57.36 23.3r 14WE556 W84 C~4yVL 2018 11 29.12243 00 48 53.274 -27 24 57.40 23.8g 14WE556 W84 C~4yVL
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 -0.20 0.00 0.16
2 0.1637 -3624.72 0.08 1081.76 -0.08
3 0.1722 -3703.43 0.11 1193.56 0.04
4 0.1722 -3703.57 0.00 1193.53 -0.05
5 0.1805 -3765.27 -0.02 1304.51 0.08
6 0.1805 -3765.33 0.04 1304.72 0.06
7 0.2378 -3786.31 -0.02 2128.31 -0.07
8 0.2405 -3769.05 0.01 2168.64 -0.03
9 1.9115 15940.57 0.00 -3181.44 -0.10
10 1.9115 15940.58 0.10 -3181.47 -0.10
11 1.9115 15940.30 -0.10 -3181.33 0.08
12 1.9443 15131.07 -0.01 -3472.12 -0.15
13 2.1410 10076.16 -0.10 -2866.40 -0.07
14 2.1410 10076.23 0.03 -2866.30 -0.02
15 3.0226 19794.07 0.07 -5587.98 0.01
16 3.0226 19793.94 0.06 -5587.92 0.06
17 3.0226 19793.81 0.03 -5587.89 0.09
18 3.0284 19625.76 0.11 -5578.59 0.00
19 3.1644 16528.07 -0.12 -4415.97 0.01
20 3.1949 16233.92 0.00 -3972.25 0.07
21 3.2302 16143.85 -0.03 -3426.55 0.03
22 4.1640 23392.77 -0.04 -6292.03 0.03
23 4.2023 23014.17 -0.01 -5717.86 0.01
24 4.2023 23014.15 -0.01 -5717.90 -0.08
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.
14WE556 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 67.471 67.502 67.440 ecceobj 0.457 0.457 0.457 incobj 31.288 31.288 31.288 qmin 35.982 36.030 35.988 qmax 99.236 99.182 99.131 amean 66.749 66.750 66.766 amin 65.981 65.923 65.976 amax 67.947 67.902 67.876 emean 0.441 0.440 0.441 emin 0.423 0.422 0.424 emax 0.460 0.461 0.461 imean 30.213 30.240 30.204 imin 29.516 29.525 29.504 imax 30.947 30.947 30.936 excite_mean 0.669 0.669 0.669 fracstop 1.000 1.000 1.000 cjmean 2.761 2.761 2.761 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 171.3 169.6 171.5 kozaiamp 180.0 180.0 180.0