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: 14XZ40 # Created Thu Apr 25 01:16:45 2024 # Orbit generated from Bernstein formalism # Fitting 35 observations of 35 # Arc: 4.02y # First observation: 2013/12/14 # Last observation: 2017/12/20 Preliminary a, adot, b, bdot, g, gdot: -0.000097 0.027461 -0.000044 0.007773 0.027150 0.000000 # Chi-squared of fit: 9.60 DOF: 64 RMS: 0.09 # Min/Max residuals: -0.27 0.28 # Exact a, adot, b, bdot, g, gdot: 1.561880E-05 2.738984E-02 4.439466E-06 7.792396E-03 2.707254E-02 2.260467E-04 # Covariance matrix: 8.4257E-13 -1.0042E-12 2.1919E-13 -2.6667E-13 -3.8697E-13 -7.3842E-12 -1.0042E-12 1.2942E-12 -2.9496E-13 3.5419E-13 5.6105E-13 9.8308E-12 2.1919E-13 -2.9496E-13 2.2532E-13 -1.7501E-13 -1.4618E-13 -2.3652E-12 -2.6667E-13 3.5419E-13 -1.7501E-13 1.7592E-13 1.5178E-13 2.8594E-12 -3.8697E-13 5.6105E-13 -1.4618E-13 1.5178E-13 4.8376E-13 4.3326E-12 -7.3842E-12 9.8308E-12 -2.3652E-12 2.8594E-12 4.3326E-12 7.9269E-11 # lat0 lon0 xBary yBary zBary JD0 -43.199671 79.785799 -0.041426 -0.671625 -0.715438 2456640.808768 # Heliocentric elements and errors Epoch: 2456640.5000 = 2013/12/14 Mean Anomaly: 11.68639 +/- 0.263 Argument of Peri: 273.58201 +/- 0.299 Long of Asc Node: 146.93721 +/- 0.001 Inclination: 44.53040 +/- 0.000 Eccentricity: 0.06056601 +/- 0.0001 Semi-Major Axis: 40.02825328 +/- 0.0032 Time of Perihelion: 2453637.6999 +/- 67.5 Perihelion: 37.60390168 +/- 0.0055 Aphelion: 42.45260489 +/- 0.0057 Period (y) 253.2551 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 4.90668079 +/- 0.0001 Ecliptic Y 27.47551872 +/- 0.0007 Ecliptic Z -25.28545408 +/- 0.0006 Ecliptic XDOT -0.00263354 +/- 0.0000 Ecliptic YDOT 0.00103637 +/- 0.0000 Ecliptic ZDOT 0.00055896 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.66077314 +/- 0.0007 Geocenter to KBO 36.93780348 +/- 0.0009 # Hcoef: 7.41
The following table shows the complete astrometric record for 14XZ40. 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 (14XZ40) followed by the observatory code and reference code for the source of the astrometry.
2013 12 14.30799 05 28 21.853 -20 02 25.46 22.7z 14XZ40 W84 C~4yVR 2014 12 01.298044 05 36 08.31 -19 26 46.8 23.2g 14XZ40 W84 C~352S 2014 12 01.298565 05 36 08.31 -19 26 46.7 23.6g 14XZ40 W84 C~1zPw 2014 12 01.29857 05 36 08.308 -19 26 46.85 23.8g 14XZ40 W84 C~4yVR 2014 12 01.299410 05 36 08.30 -19 26 46.8 23.1r 14XZ40 W84 C~352S 2014 12 01.299931 05 36 08.30 -19 26 46.9 23.7r 14XZ40 W84 C~1zPw 2014 12 01.29994 05 36 08.299 -19 26 46.80 23.5r 14XZ40 W84 C~4yVR 2014 12 01.300787 05 36 08.29 -19 26 46.9 22.8i 14XZ40 W84 C~352S 2014 12 01.301308 05 36 08.28 -19 26 46.8 22.8i 14XZ40 W84 C~1zPw 2014 12 01.30131 05 36 08.284 -19 26 46.85 22.8i 14XZ40 W84 C~4yVR 2014 12 12.33555 05 35 05.264 -19 28 18.03 23.1z 14XZ40 W84 C~4yVR 2014 12 14.325104 05 34 53.69 -19 28 19.5 22.8i 14XZ40 W84 C~352S 2014 12 14.325625 05 34 53.69 -19 28 19.2 22.9i 14XZ40 W84 C~1zPw 2014 12 14.32563 05 34 53.691 -19 28 19.45 23.0i 14XZ40 W84 C~4yVR 2014 12 17.316539 05 34 36.26 -19 28 13.1 22.8r 14XZ40 W84 C~352S 2014 12 17.317060 05 34 36.26 -19 28 13.0 23.2r 14XZ40 W84 C~1zPw 2014 12 21.309907 05 34 13.02 -19 27 48.5 23.1r 14XZ40 W84 C~352S 2014 12 21.310428 05 34 13.02 -19 27 48.5 23.5r 14XZ40 W84 C~1zPw 2014 12 21.31044 05 34 13.007 -19 27 48.66 22.9r 14XZ40 W84 C~4yVR 2014 12 27.291389 05 33 38.60 -19 26 36.2 23.4g 14XZ40 W84 C~352S 2014 12 27.291910 05 33 38.60 -19 26 36.3 23.6g 14XZ40 W84 C~1zPw 2014 12 27.29192 05 33 38.602 -19 26 36.24 23.6g 14XZ40 W84 C~4yVR 2014 12 27.292755 05 33 38.59 -19 26 36.2 22.9i 14XZ40 W84 C~352S 2014 12 27.293275 05 33 38.59 -19 26 36.4 23.4i 14XZ40 W84 C~1zPw 2014 12 27.29328 05 33 38.587 -19 26 36.17 23.4i 14XZ40 W84 C~4yVR 2015 02 15.11944 05 30 06.985 -18 52 43.97 24.0g 14XZ40 W84 C~4yVR 2015 02 15.120266 05 30 06.98 -18 52 43.8 22.9r 14XZ40 W84 C~352S 2015 02 15.120787 05 30 06.96 -18 52 43.6 22.9r 14XZ40 W84 C~2ICg 2015 02 15.12079 05 30 06.978 -18 52 43.75 23.2r 14XZ40 W84 C~4yVR 2015 02 16.121701 05 30 04.91 -18 51 42.7 23.1r 14XZ40 W84 C~352S 2015 02 16.122222 05 30 04.91 -18 51 42.6 23.1r 14XZ40 W84 C~2ICg 2016 02 08.16653 05 36 48.382 -18 25 49.04 23.5r 14XZ40 W84 C~4yVR 2016 02 09.10812 05 36 45.617 -18 24 56.45 23.1i 14XZ40 W84 C~4yVR 2017 12 20.29703 05 53 28.912 -17 41 21.36 23.1R 14XZ40 G37 C~4UFd 2017 12 20.33267 05 53 28.708 -17 41 21.06 14XZ40 G37 C~4UFd
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 0.08 0.00 0.02
2 0.9637 6739.32 0.04 1599.97 -0.02
3 0.9637 6739.33 0.09 1600.07 0.08
4 0.9637 6739.29 0.05 1599.92 -0.06
5 0.9637 6739.18 0.01 1599.98 0.00
6 0.9637 6739.17 0.04 1599.88 -0.09
7 0.9637 6739.16 0.04 1599.98 0.01
8 0.9637 6739.03 -0.03 1599.89 -0.08
9 0.9637 6738.90 -0.12 1600.00 0.04
10 0.9637 6738.95 -0.07 1599.95 -0.02
11 0.9939 5842.24 -0.01 1585.41 -0.13
12 0.9994 5678.90 -0.03 1597.82 -0.01
13 0.9994 5678.92 0.04 1598.12 0.28
14 0.9994 5678.92 0.03 1597.87 0.03
15 1.0076 5433.64 0.01 1625.00 0.07
16 1.0076 5433.65 0.06 1625.10 0.17
17 1.0185 5107.98 -0.06 1677.10 -0.12
18 1.0185 5107.98 -0.02 1677.10 -0.13
19 1.0185 5107.78 -0.21 1676.96 -0.27
20 1.0349 4628.59 -0.04 1789.68 0.03
21 1.0349 4628.58 -0.01 1789.58 -0.08
22 1.0349 4628.61 0.02 1789.64 -0.02
23 1.0349 4628.45 -0.08 1789.69 0.01
24 1.0349 4628.43 -0.05 1789.49 -0.20
25 1.0349 4628.41 -0.07 1789.72 0.04
26 1.1713 1802.13 0.13 4056.36 -0.07
27 1.1713 1802.07 0.09 4056.53 0.05
28 1.1713 1801.80 -0.16 4056.75 0.24
29 1.1713 1802.05 0.08 4056.58 0.07
30 1.1740 1777.52 0.05 4119.75 0.01
31 1.1740 1777.53 0.07 4119.85 0.08
32 2.1516 7625.62 -0.06 5198.03 0.05
33 2.1541 7590.97 0.11 5253.91 0.07
34 4.0164 22176.03 -0.05 6461.25 -0.08
35 4.0165 22173.14 0.04 6461.87 0.02
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.
14XZ40 quality flag:3 Type: SCATEXTD SCATEXTD SCATEXTD axisobj 40.157 40.168 40.146 ecceobj 0.064 0.064 0.063 incobj 44.541 44.541 44.541 qmin 37.152 37.122 37.169 qmax 42.729 42.767 42.719 amean 39.858 39.873 39.849 amin 39.554 39.563 39.554 amax 40.174 40.200 40.164 emean 0.054 0.055 0.054 emin 0.045 0.045 0.045 emax 0.064 0.065 0.064 imean 43.399 43.399 43.398 imin 43.158 43.165 43.161 imax 43.648 43.638 43.636 excite_mean 0.689 0.689 0.689 fracstop 1.000 1.000 1.000 cjmean 2.425 2.425 2.425 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 178.3 176.9 179.7 kozaiamp 180.0 180.0 180.0