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: 14SW434 # Created Wed Sep 3 01:10:17 2025 # Orbit generated from Bernstein formalism # Fitting 30 observations of 30 # Arc: 0.84y # First observation: 2014/09/18 # Last observation: 2015/07/22 Preliminary a, adot, b, bdot, g, gdot: -0.000013 0.026089 -0.000001 -0.000860 0.025226 0.000000 # Chi-squared of fit: 14.75 DOF: 54 RMS: 0.12 # Min/Max residuals: -0.24 0.29 # Exact a, adot, b, bdot, g, gdot: 1.498350E-05 2.613025E-02 -1.406860E-07 -8.639117E-04 2.541570E-02 1.433495E-03 # Covariance matrix: 2.1437E-13 1.0300E-11 2.5922E-14 -3.6306E-13 3.5472E-12 3.1733E-10 1.0300E-11 3.6010E-09 6.1242E-12 -1.2005E-10 7.8400E-10 9.7939E-08 2.5922E-14 6.1242E-12 9.5572E-14 -3.0907E-13 1.4391E-12 1.6941E-10 -3.6306E-13 -1.2005E-10 -3.0907E-13 4.3095E-12 -2.6348E-11 -3.2711E-09 3.5472E-12 7.8400E-10 1.4391E-12 -2.6348E-11 1.8717E-10 2.1766E-08 3.1733E-10 9.7939E-08 1.6941E-10 -3.2711E-09 2.1766E-08 2.6758E-06 # lat0 lon0 xBary yBary zBary JD0 10.205878 -24.088350 -0.328946 0.168810 -0.937121 2456918.733128 # Heliocentric elements and errors Epoch: 2456910.5000 = 2014/09/10 Mean Anomaly: 34.86540 +/- 21.122 Argument of Peri: 58.83031 +/- 27.907 Long of Asc Node: 235.21960 +/- 0.078 Inclination: 10.15470 +/- 0.003 Eccentricity: 0.09992009 +/- 0.0468 Semi-Major Axis: 43.70148127 +/- 0.4795 Time of Perihelion: 2446690.8773 +/- 6188.9 Perihelion: 39.33482512 +/- 2.0921 Aphelion: 48.06813742 +/- 2.1139 Period (y) 288.9033 +/- 4.75 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 36.35247718 +/- 0.0190 Ecliptic Y -15.89110703 +/- 0.0085 Ecliptic Z 6.97153267 +/- 0.0037 Ecliptic XDOT 0.00129796 +/- 0.0002 Ecliptic YDOT 0.00249641 +/- 0.0001 Ecliptic ZDOT -0.00006412 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 40.28190844 +/- 0.0175 Geocenter to KBO 39.34575791 +/- 0.0212 # Hcoef: 9.07
The following table shows the complete astrometric record for 14SW434. 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 (14SW434) followed by the observatory code and reference code for the source of the astrometry.
2014 09 18.23235 22 15 50.03 +00 09 34.0 25.6g 14SW434 T09 C~90HO 2014 09 18.24395 22 15 49.95 +00 09 33.6 25.8g 14SW434 T09 C~90HO 2014 09 18.24895 22 15 49.93 +00 09 33.5 25.7g 14SW434 T09 C~90HO 2014 09 18.28333 22 15 49.79 +00 09 32.5 25.7g 14SW434 T09 C~90HO 2014 09 22.22613 22 15 33.63 +00 07 30.9 25.0r 14SW434 T09 C~90HO 2014 09 22.23772 22 15 33.60 +00 07 30.4 25.7r 14SW434 T09 C~90HO 2014 09 22.24278 22 15 33.58 +00 07 30.4 25.1r 14SW434 T09 C~90HO 2014 09 22.25775 22 15 33.51 +00 07 29.7 24.6r 14SW434 T09 C~90HO 2014 09 22.26419 22 15 33.49 +00 07 29.3 25.5r 14SW434 T09 C~90HO 2014 09 22.27709 22 15 33.44 +00 07 29.0 24.9r 14SW434 T09 C~90HO 2014 09 22.34787 22 15 33.15 +00 07 27.0 24.3i 14SW434 T09 C~90HO 2014 09 22.35604 22 15 33.11 +00 07 26.7 24.5i 14SW434 T09 C~90HO 2014 09 22.36148 22 15 33.08 +00 07 26.3 24.9i 14SW434 T09 C~90HO 2014 09 22.37509 22 15 33.03 +00 07 26.2 25.0i 14SW434 T09 C~90HO 2014 10 01.21913 22 14 59.55 +00 02 53.9 25.2z 14SW434 T09 C~90HO 2014 10 01.23010 22 14 59.51 +00 02 53.5 24.3z 14SW434 T09 C~90HO 2014 10 01.24454 22 14 59.49 +00 02 53.2 24.5z 14SW434 T09 C~90HO 2014 10 01.33842 22 14 59.13 +00 02 50.5 24.8z 14SW434 T09 C~90HO 2015 07 15.46937 22 26 03.46 +01 03 13.1 25.2r 14SW434 T09 C~90HO 2015 07 15.50847 22 26 03.33 +01 03 12.8 25.3r 14SW434 T09 C~90HO 2015 07 20.42844 22 25 47.11 +01 02 29.1 24.4i 14SW434 T09 C~90HO 2015 07 20.46939 22 25 46.96 +01 02 28.4 24.6i 14SW434 T09 C~90HO 2015 07 20.50208 22 25 46.84 +01 02 28.4 24.8i 14SW434 T09 C~90HO 2015 07 20.55765 22 25 46.64 +01 02 27.8 24.9i 14SW434 T09 C~90HO 2015 07 20.56035 22 25 46.65 +01 02 27.8 25.1i 14SW434 T09 C~90HO 2015 07 22.41783 22 25 40.13 +01 02 07.6 25.2z 14SW434 T09 C~90HO 2015 07 22.47600 22 25 39.91 +01 02 06.8 25.0z 14SW434 T09 C~90HO 2015 07 22.49762 22 25 39.83 +01 02 06.6 24.9z 14SW434 T09 C~90HO 2015 07 22.50032 22 25 39.82 +01 02 06.6 25.7z 14SW434 T09 C~90HO 2015 07 22.51655 22 25 39.76 +01 02 06.3 25.1z 14SW434 T09 C~90HO
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 0.26 0.00 -0.08
2 0.0000 -1.26 -0.18 0.06 0.05
3 0.0000 -1.58 -0.15 0.08 0.09
4 0.0001 -3.90 -0.04 -0.09 0.11
5 0.0109 -273.91 -0.08 -25.36 0.24
6 0.0110 -274.51 0.11 -25.67 0.02
7 0.0110 -274.79 0.17 -25.56 0.16
8 0.0110 -276.02 -0.04 -25.83 -0.01
9 0.0110 -276.45 -0.02 -26.09 -0.24
10 0.0111 -277.25 0.05 -26.10 -0.16
11 0.0113 -282.03 0.12 -26.38 0.02
12 0.0113 -282.70 0.01 -26.45 0.01
13 0.0113 -283.27 -0.18 -26.65 -0.16
14 0.0113 -284.00 0.01 -26.48 0.10
15 0.0356 -850.81 -0.18 -97.82 -0.03
16 0.0356 -851.51 -0.21 -97.97 -0.09
17 0.0356 -851.90 0.29 -98.14 -0.14
18 0.0359 -857.91 0.07 -98.70 0.12
19 0.8220 9749.05 -0.04 -340.35 -0.09
20 0.8221 9747.12 -0.10 -339.93 -0.08
21 0.8356 9504.04 0.15 -292.36 -0.01
22 0.8357 9501.69 -0.03 -292.19 -0.24
23 0.8358 9500.00 0.03 -291.54 0.10
24 0.8359 9496.99 -0.02 -291.01 0.09
25 0.8359 9497.13 0.26 -291.07 0.01
26 0.8410 9398.47 0.09 -274.40 0.09
27 0.8412 9395.09 -0.08 -273.95 0.01
28 0.8412 9393.90 -0.07 -273.70 0.06
29 0.8413 9393.76 -0.07 -273.65 0.09
30 0.8413 9392.81 -0.12 -273.60 -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.
14SW434 quality flag:2 Type: CLASSICAL SCATNEAR CLASSICAL axisobj 43.987 47.308 43.398 ecceobj 0.105 0.265 0.076 incobj 10.160 10.153 10.164 qmin 38.703 32.376 39.305 qmax 49.392 65.198 47.545 amean 43.934 47.550 43.329 amin 43.585 46.720 42.980 amax 44.321 49.118 43.686 emean 0.102 0.280 0.075 emin 0.088 0.240 0.061 emax 0.115 0.330 0.089 imean 11.660 12.958 11.699 imin 11.039 10.336 11.105 imax 12.195 16.114 12.264 excite_mean 0.226 0.359 0.216 fracstop 1.000 1.000 1.000 cjmean 3.039 2.983 3.037 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 176.2 181.7 184.2 kozaiamp 179.9 180.0 180.0