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: 14XW47 # Created Sun Dec 22 02:10:13 2024 # Orbit generated from Bernstein formalism # Fitting 26 observations of 26 # Arc: 3.79y # First observation: 2014/12/01 # Last observation: 2018/09/14 Preliminary a, adot, b, bdot, g, gdot: 0.000175 0.021286 -0.000009 0.002534 0.023687 0.000000 # Chi-squared of fit: 7.35 DOF: 46 RMS: 0.09 # Min/Max residuals: -0.21 0.19 # Exact a, adot, b, bdot, g, gdot: 1.464770E-05 2.163311E-02 2.074420E-06 2.537613E-03 2.345694E-02 6.129724E-03 # Covariance matrix: 2.2642E-13 -1.9944E-13 7.6487E-15 -1.4696E-14 -8.6406E-14 -1.7411E-12 -1.9944E-13 3.5511E-13 -1.5243E-14 2.3819E-14 5.2854E-14 3.8945E-12 7.6487E-15 -1.5243E-14 1.5324E-13 -7.2355E-14 -6.5236E-15 -2.0144E-13 -1.4696E-14 2.3819E-14 -7.2355E-14 5.5604E-14 1.9250E-14 3.2690E-13 -8.6406E-14 5.2854E-14 -6.5236E-15 1.9250E-14 2.2027E-13 9.6311E-13 -1.7411E-12 3.8945E-12 -2.0144E-13 3.2690E-13 9.6311E-13 5.0526E-11 # lat0 lon0 xBary yBary zBary JD0 -27.336159 7.737534 -0.860590 -0.220999 -0.427947 2456992.672668 # Heliocentric elements and errors Epoch: 2456990.5000 = 2014/11/29 Mean Anomaly: 71.27133 +/- 0.040 Argument of Peri: 179.00729 +/- 0.022 Long of Asc Node: 83.50118 +/- 0.001 Inclination: 27.90908 +/- 0.000 Eccentricity: 0.28968977 +/- 0.0003 Semi-Major Axis: 43.53590784 +/- 0.0094 Time of Perihelion: 2436218.3138 +/- 9.6 Perihelion: 30.92400086 +/- 0.0143 Aphelion: 56.14781482 +/- 0.0175 Period (y) 287.2629 +/- 0.09 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 37.88439163 +/- 0.0008 Ecliptic Y 6.01795511 +/- 0.0001 Ecliptic Z -19.57671722 +/- 0.0004 Ecliptic XDOT 0.00042041 +/- 0.0000 Ecliptic YDOT 0.00260082 +/- 0.0000 Ecliptic ZDOT -0.00006533 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 43.06612091 +/- 0.0007 Geocenter to KBO 42.63130183 +/- 0.0009 # Hcoef: 7.09
The following table shows the complete astrometric record for 14XW47. 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 (14XW47) followed by the observatory code and reference code for the source of the astrometry.
2014 12 01.17189 01 13 30.06 -21 56 47.9 22.5z 14XW47 W84 C~3cpY 2014 12 17.14012 01 12 53.902 -21 49 44.09 23.4i 14XW47 W84 C~4yVR 2014 12 20.11752 01 12 49.606 -21 48 03.69 23.6r 14XW47 W84 C~4yVR 2014 12 22.06704 01 12 47.238 -21 46 54.46 23.6r 14XW47 W84 C~4yVR 2014 12 29.07146 01 12 41.648 -21 42 25.82 22.7z 14XW47 W84 C~4yVR 2014 12 30.07671 01 12 41.234 -21 41 44.69 23.2z 14XW47 W84 C~4yVR 2015 08 24.38716 01 24 50.643 -20 47 07.42 23.2r 14XW47 W84 C~4yVR 2015 08 24.38855 01 24 50.628 -20 47 07.44 23.3i 14XW47 W84 C~4yVR 2015 10 07.22783 01 21 57.774 -21 13 28.71 23.4i 14XW47 W84 C~4yVR 2015 10 07.22922 01 21 57.770 -21 13 28.56 23.8r 14XW47 W84 C~4yVR 2015 11 07.25695 01 19 31.506 -21 20 54.27 23.9r 14XW47 W84 C~4yVR 2015 11 07.25833 01 19 31.498 -21 20 54.49 23.7i 14XW47 W84 C~4yVR 2015 11 18.15693 01 18 46.491 -21 20 22.47 23.8r 14XW47 W84 C~4yVR 2015 11 20.10483 01 18 39.107 -21 20 06.07 23.0z 14XW47 W84 C~4yVR 2016 08 26.38157 01 29 04.795 -20 08 57.09 23.1r 14XW47 W84 C~4yVR 2016 10 05.27534 01 26 28.571 -20 32 49.34 23.4i 14XW47 W84 C~4yVR 2016 10 05.27673 01 26 28.572 -20 32 49.38 23.7r 14XW47 W84 C~4yVR 2016 10 05.27813 01 26 28.568 -20 32 49.25 24.1g 14XW47 W84 C~4yVR 2016 11 05.26588 01 24 02.804 -20 41 04.41 22.9i 14XW47 W84 C~4yVR 2016 11 18.22056 01 23 08.905 -20 40 41.83 22.3z 14XW47 W84 C~4yVR 2016 11 28.08555 01 22 33.897 -20 38 49.35 23.2r 14XW47 W84 C~4yVR 2016 12 02.05209 01 22 21.615 -20 37 40.64 24.4g 14XW47 W84 C~4yVR 2017 11 23.19687 01 27 11.041 -20 00 32.24 23.2i 14XW47 W84 C~4yVR 2017 11 23.19824 01 27 11.032 -20 00 32.06 23.9r 14XW47 W84 C~4yVR 2017 11 23.19962 01 27 11.040 -20 00 32.14 24.6g 14XW47 W84 C~4yVR 2018 09 14.38509 01 36 32.334 -19 01 09.26 23.5r 14XW47 W84 C~4yVR
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 -0.01 0.00 -0.08
2 0.0437 -275.77 -0.12 597.37 -0.13
3 0.0519 -287.38 -0.03 713.67 -0.11
4 0.0572 -287.90 0.09 790.35 0.02
5 0.0764 -244.59 -0.01 1066.69 -0.05
6 0.0791 -232.38 0.08 1106.39 -0.01
7 0.7289 10388.19 0.09 -350.56 0.03
8 0.7289 10387.99 -0.04 -350.49 0.13
9 0.8489 7513.49 -0.09 -708.13 -0.03
10 0.8489 7513.51 0.02 -707.97 0.12
11 0.9338 5477.09 -0.01 -218.68 0.15
12 0.9338 5476.89 -0.13 -218.83 -0.04
13 0.9637 4923.66 0.12 82.50 0.11
14 0.9690 4837.69 0.10 141.93 -0.06
15 1.7364 14621.01 0.09 116.23 -0.08
16 1.8456 12005.12 -0.11 -188.74 0.03
17 1.8456 12005.12 -0.02 -188.78 -0.02
18 1.8456 12005.13 0.09 -188.64 0.12
19 1.9304 9944.61 0.02 271.77 -0.11
20 1.9659 9273.64 0.02 624.75 0.19
21 1.9929 8880.58 -0.05 941.50 -0.21
22 2.0038 8755.43 -0.17 1078.86 0.06
23 2.9789 13405.77 -0.02 1284.83 -0.01
24 2.9789 13405.74 0.00 1285.05 0.16
25 2.9789 13405.81 0.13 1284.93 -0.00
26 3.7870 22161.51 -0.03 891.72 -0.19
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.
14XW47 quality flag:3 Type: 7:4EEE 7:4EEE 7:4EEE Type: 7:4EII 7:4EII 7:4EII axisobj 43.920 43.947 43.893 ecceobj 0.290 0.291 0.290 incobj 27.918 27.918 27.918 qmin 30.553 30.426 30.554 qmax 57.473 57.592 57.464 amean 43.724 43.724 43.724 amin 43.339 43.323 43.334 amax 44.203 44.210 44.208 emean 0.240 0.232 0.239 emin 0.149 0.128 0.147 emax 0.301 0.303 0.301 imean 27.926 28.065 27.937 imin 26.353 26.319 26.364 imax 29.856 30.192 29.878 excite_mean 0.528 0.528 0.528 fracstop 1.000 1.000 1.000 cjmean 2.754 2.754 2.754 libcent 0 181.1 182.3 182.2 libamp 0 52.8 70.1 52.6 libcent 1 182.2 179.4 183.6 libamp 1 88.2 110.8 91.3 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 184.8 183.6 184.7 kozaiamp 31.5 35.5 31.8