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: 14SW373 # Created Sun Apr 27 01:10:06 2025 # Orbit generated from Bernstein formalism # Fitting 32 observations of 32 # Arc: 4.18y # First observation: 2014/09/25 # Last observation: 2018/11/29 Preliminary a, adot, b, bdot, g, gdot: 0.000029 0.031871 -0.000160 0.006712 0.027474 0.000000 # Chi-squared of fit: 8.72 DOF: 58 RMS: 0.09 # Min/Max residuals: -0.31 0.24 # Exact a, adot, b, bdot, g, gdot: 1.807241E-05 3.154247E-02 3.850177E-06 6.587939E-03 2.740852E-02 -4.092493E-03 # Covariance matrix: 3.0058E-13 -1.8279E-13 1.0573E-14 -3.0679E-14 8.6729E-14 -1.1183E-12 -1.8279E-13 2.3575E-13 -3.6714E-14 5.5439E-14 2.0313E-14 1.8755E-12 1.0573E-14 -3.6714E-14 1.6447E-13 -6.5950E-14 -2.1264E-14 -3.3679E-13 -3.0679E-14 5.5439E-14 -6.5950E-14 4.2938E-14 1.0270E-14 5.0193E-13 8.6729E-14 2.0313E-14 -2.1264E-14 1.0270E-14 1.4917E-13 2.2808E-13 -1.1183E-12 1.8755E-12 -3.3679E-13 5.0193E-13 2.2808E-13 1.6944E-11 # lat0 lon0 xBary yBary zBary JD0 -17.826380 21.877098 0.344677 -0.288982 -0.899163 2456925.758488 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 346.05587 +/- 0.011 Argument of Peri: 333.22110 +/- 0.026 Long of Asc Node: 76.64283 +/- 0.001 Inclination: 20.84254 +/- 0.000 Eccentricity: 0.35229779 +/- 0.0001 Semi-Major Axis: 55.66185994 +/- 0.0056 Time of Perihelion: 2462795.7156 +/- 4.6 Perihelion: 36.05230983 +/- 0.0056 Aphelion: 75.27141005 +/- 0.0087 Period (y) 415.2836 +/- 0.06 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 33.23425213 +/- 0.0005 Ecliptic Y 12.97624917 +/- 0.0002 Ecliptic Z -11.16918426 +/- 0.0002 Ecliptic XDOT -0.00135288 +/- 0.0000 Ecliptic YDOT 0.00284935 +/- 0.0000 Ecliptic ZDOT 0.00075174 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 37.38514724 +/- 0.0004 Geocenter to KBO 36.48500816 +/- 0.0005 # Hcoef: 6.95
The following table shows the complete astrometric record for 14SW373. 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 (14SW373) followed by the observatory code and reference code for the source of the astrometry.
2014 09 25.25771 01 47 24.09 -08 02 04.3 22.7r 14SW373 W84 C~3cnr 2014 11 27.06097 01 42 22.906 -08 21 01.10 22.6i 14SW373 W84 C~4yUY 2014 12 24.12239 01 41 06.992 -08 14 50.74 23.3g 14SW373 W84 C~4yUY 2014 12 24.12375 01 41 06.981 -08 14 50.77 22.0r 14SW373 W84 C~4yUY 2015 01 14.06682 01 40 56.027 -08 03 53.35 22.4r 14SW373 W84 C~4yUY 2015 01 14.06818 01 40 56.036 -08 03 53.40 23.7g 14SW373 W84 C~4yUY 2015 01 14.06956 01 40 56.036 -08 03 53.20 22.5i 14SW373 W84 C~4yUY 2015 09 04.33612 01 54 55.934 -06 48 21.59 21.9z 14SW373 W84 C~4yUY 2015 11 02.14566 01 50 29.935 -07 16 40.70 23.6g 14SW373 W84 C~4yUY 2015 11 15.18517 01 49 26.12 -07 19 19.0 21.7i 14SW373 W84 C~3cnr 2015 11 15.18794 01 49 26.091 -07 19 18.96 23.1g 14SW373 W84 C~4yUY 2015 11 20.12640 01 49 03.647 -07 19 47.34 22.2z 14SW373 W84 C~4yUY 2016 09 08.29661 02 00 53.216 -05 48 39.96 22.5r 14SW373 W84 C~4yUY 2016 09 10.29101 02 00 46.599 -05 49 46.65 22.4i 14SW373 W84 C~4yUY 2016 09 10.29240 02 00 46.601 -05 49 46.71 23.5g 14SW373 W84 C~4yUY 2016 10 03.23625 01 59 11.778 -06 02 15.27 23.0r 14SW373 W84 C~4yUY 2016 10 03.23761 01 59 11.771 -06 02 15.27 22.5i 14SW373 W84 C~4yUY 2016 10 03.23897 01 59 11.759 -06 02 15.32 23.9g 14SW373 W84 C~4yUY 2016 10 22.19607 01 57 36.641 -06 10 50.61 22.9r 14SW373 W84 C~4yUY 2016 10 22.19744 01 57 36.628 -06 10 50.78 21.9i 14SW373 W84 C~4yUY 2016 10 22.20196 01 57 36.598 -06 10 50.75 23.3g 14SW373 W84 C~4yUY 2016 12 06.05834 01 54 08.998 -06 17 19.57 22.6z 14SW373 W84 C~4yUY 2017 09 18.38916 02 06 32.096 -04 50 57.91 22.6i 14SW373 W84 C~4yUY 2017 10 03.19022 02 05 28.481 -04 58 48.58 22.1z 14SW373 W84 C~4yUY 2017 11 27.14363 02 00 56.924 -05 15 12.13 22.8z 14SW373 W84 C~4yUY 2017 11 27.14500 02 00 56.909 -05 15 12.03 22.4i 14SW373 W84 C~4yUY 2017 12 14.06076 01 59 55.544 -05 13 33.94 23.4g 14SW373 W84 C~4yUY 2018 01 05.07979 01 59 12.691 -05 06 04.17 22.4z 14SW373 W84 C~4yUY 2018 09 22.28412 02 12 33.677 -03 49 03.29 22.3z 14SW373 W84 C~4yUY 2018 11 15.09676 02 08 09.020 -04 10 24.62 22.1i 14SW373 W84 C~4yUY 2018 11 29.19158 02 07 04.221 -04 11 42.58 22.4r 14SW373 W84 C~4yUY 2018 11 29.19296 02 07 04.225 -04 11 42.64 22.9g 14SW373 W84 C~4yUY
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 0.03 0.00 -0.01
2 0.1719 -4574.81 0.05 605.14 0.03
3 0.2460 -5485.57 0.01 1365.98 -0.05
4 0.2460 -5485.73 -0.14 1366.01 -0.06
5 0.3034 -5394.21 -0.00 2037.31 -0.10
6 0.3034 -5394.11 0.08 2037.21 -0.24
7 0.3034 -5394.03 0.12 2037.40 -0.10
8 0.9420 7892.51 0.00 1582.06 0.00
9 1.1030 3580.77 -0.31 1494.22 0.22
10 1.1387 2640.81 0.15 1702.67 0.09
11 1.1388 2640.43 -0.05 1702.87 0.24
12 1.1523 2320.06 -0.13 1801.36 -0.01
13 1.9549 14197.25 0.07 2887.85 0.04
14 1.9604 14080.02 -0.01 2863.49 0.03
15 1.9604 14080.02 0.08 2863.42 -0.02
16 2.0232 12480.32 0.04 2705.81 -0.01
17 2.0232 12480.22 0.05 2705.85 0.03
18 2.0232 12480.04 -0.03 2705.87 0.05
19 2.0751 10966.88 0.15 2765.04 0.03
20 2.0751 10966.63 0.02 2764.96 -0.07
21 2.0751 10966.23 -0.01 2765.15 0.09
22 2.1979 7946.06 -0.10 3572.21 -0.01
23 2.9819 20238.98 0.03 4173.23 -0.01
24 3.0224 19170.68 -0.09 4099.22 0.10
25 3.1729 15015.37 0.07 4730.47 -0.05
26 3.1729 15015.20 -0.01 4730.64 0.10
27 3.2192 14200.14 -0.13 5169.38 -0.08
28 3.2795 13776.29 0.02 5829.57 -0.09
29 3.9919 26743.97 -0.02 5555.62 0.01
30 4.1392 22534.44 -0.01 5882.31 -0.00
31 4.1778 21598.09 -0.02 6180.56 -0.02
32 4.1778 21598.12 0.09 6180.49 -0.13
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.
14SW373 quality flag:2 Type: SCATNEAR 5:2EEE 5:2EEE axisobj 56.334 56.350 56.318 ecceobj 0.359 0.359 0.359 incobj 20.843 20.843 20.843 qmin 35.301 34.931 35.026 qmax 76.964 77.501 77.364 amean 55.463 55.462 55.462 amin 54.624 54.565 54.621 amax 56.465 56.541 56.520 emean 0.342 0.352 0.350 emin 0.317 0.330 0.334 emax 0.365 0.372 0.371 imean 19.723 19.236 19.422 imin 18.992 18.601 18.996 imax 20.688 20.070 19.739 excite_mean 0.481 0.482 0.483 fracstop 1.000 1.000 1.000 cjmean 2.943 2.942 2.941 libcent 0 -180.0 180.3 177.7 libamp 0 -180.0 173.6 166.2 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 169.4 175.0 173.4 kozaiamp 180.0 180.0 180.0