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: 14SQ403 # Created Fri Nov 22 02:10:03 2024 # Orbit generated from Bernstein formalism # Fitting 18 observations of 18 # Arc: 3.38y # First observation: 2014/09/20 # Last observation: 2018/02/07 Preliminary a, adot, b, bdot, g, gdot: 0.000304 0.017911 -0.000139 -0.010614 0.019829 0.000000 # Chi-squared of fit: 5.48 DOF: 30 RMS: 0.10 # Min/Max residuals: -0.21 0.28 # Exact a, adot, b, bdot, g, gdot: 1.428782E-05 1.813705E-02 -8.478485E-06 -1.086023E-02 1.970204E-02 6.367408E-03 # Covariance matrix: 6.2641E-13 -5.2042E-14 4.7902E-14 -1.0787E-14 4.0845E-13 -8.7004E-13 -5.2042E-14 4.0678E-13 1.6231E-13 -3.0590E-13 3.1726E-13 8.3037E-12 4.7902E-14 1.6231E-13 3.3583E-13 -2.4415E-13 1.7286E-13 3.7548E-12 -1.0787E-14 -3.0590E-13 -2.4415E-13 3.3429E-13 -2.4608E-13 -7.5375E-12 4.0845E-13 3.1726E-13 1.7286E-13 -2.4608E-13 6.5355E-13 5.5140E-12 -8.7004E-13 8.3037E-12 3.7548E-12 -7.5375E-12 5.5140E-12 2.1135E-10 # lat0 lon0 xBary yBary zBary JD0 -33.050205 42.705515 0.720333 -0.383507 -0.589702 2456920.840348 # Heliocentric elements and errors Epoch: 2456920.5000 = 2014/09/20 Mean Anomaly: 6.30990 +/- 0.018 Argument of Peri: 191.04487 +/- 0.065 Long of Asc Node: 180.38993 +/- 0.001 Inclination: 44.08151 +/- 0.000 Eccentricity: 0.66734895 +/- 0.0007 Semi-Major Axis: 140.08965140 +/- 0.2469 Time of Perihelion: 2446305.3111 +/- 11.6 Perihelion: 46.60096905 +/- 0.1293 Aphelion: 233.57833376 +/- 0.4236 Period (y) 1658.1251 +/- 4.38 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 32.26544288 +/- 0.0013 Ecliptic Y 28.80375675 +/- 0.0012 Ecliptic Z -27.68146396 +/- 0.0011 Ecliptic XDOT -0.00177389 +/- 0.0000 Ecliptic YDOT 0.00179234 +/- 0.0000 Ecliptic ZDOT -0.00174742 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 51.35152047 +/- 0.0012 Geocenter to KBO 50.75615817 +/- 0.0021 # Hcoef: 6.26
The following table shows the complete astrometric record for 14SQ403. 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 (14SQ403) followed by the observatory code and reference code for the source of the astrometry.
2014 09 20.33957 03 20 40.988 -15 55 00.02 24.5g 14SQ403 W84 C~55S8 2014 11 21.26070 03 17 15.836 -16 26 53.31 23.7g 14SQ403 W84 C~55S8 2014 12 12.23603 03 15 58.482 -16 28 29.61 23.1i 14SQ403 W84 C~55S8 2014 12 16.22253 03 15 45.435 -16 28 10.78 23.3r 14SQ403 W84 C~55S8 2015 11 06.32699 03 23 10.858 -16 38 51.77 23.7r 14SQ403 W84 C~55S8 2015 11 06.32837 03 23 10.835 -16 38 51.69 23.0i 14SQ403 W84 C~55S8 2015 11 08.30993 03 23 03.132 -16 39 36.34 23.5g 14SQ403 W84 C~55S8 2015 12 17.22182 03 20 37.669 -16 44 42.22 23.5i 14SQ403 W84 C~55S8 2015 12 17.22319 03 20 37.659 -16 44 42.23 24.0r 14SQ403 W84 C~55S8 2015 12 17.22457 03 20 37.658 -16 44 42.31 23.8g 14SQ403 W84 C~55S8 2016 12 05.25940 03 26 08.189 -17 01 08.28 23.6i 14SQ403 W84 C~55S8 2016 12 05.26077 03 26 08.185 -17 01 08.37 23.3r 14SQ403 W84 C~55S8 2017 01 20.13459 03 24 10.705 -16 50 06.04 23.1z 14SQ403 W84 C~55S8 2017 11 23.29465 03 31 43.778 -17 15 06.52 23.1r 14SQ403 W84 C~55S8 2017 11 23.29604 03 31 43.762 -17 15 06.49 23.3g 14SQ403 W84 C~55S8 2018 02 03.08542 03 28 47.903 -16 58 16.03 23.0i 14SQ403 W84 C~55S8 2018 02 07.07189 03 28 48.054 -16 55 56.29 23.3r 14SQ403 W84 C~55S8 2018 02 07.07326 03 28 48.049 -16 55 56.29 24.0g 14SQ403 W84 C~55S8
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 0.06 0.00 -0.05
2 0.1695 -3395.48 -0.02 -931.57 0.07
3 0.2270 -4486.46 -0.07 -690.46 0.07
4 0.2379 -4660.05 0.02 -616.48 -0.20
5 1.1280 1251.14 0.12 -3165.32 -0.10
6 1.1280 1250.85 -0.08 -3165.14 0.08
7 1.1334 1131.77 0.04 -3173.67 0.28
8 1.2399 -951.95 0.03 -2826.80 -0.02
9 1.2399 -952.09 -0.05 -2826.77 -0.01
10 1.2399 -952.13 -0.03 -2826.84 -0.11
11 2.2092 3261.29 0.01 -5223.55 0.07
12 2.2092 3261.21 0.00 -5223.62 -0.02
13 2.3348 1862.03 0.05 -4071.59 0.06
14 3.1758 7572.05 -0.08 -7533.36 -0.19
15 3.1758 7571.84 -0.21 -7533.26 -0.10
16 3.3723 5493.77 0.15 -5775.73 0.03
17 3.3833 5539.63 0.08 -5643.58 0.08
18 3.3833 5539.56 -0.01 -5643.56 0.06
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.
14SQ403 quality flag:2 Type: 10:1EEEEEE SCATNEAR SCATNEAR axisobj 143.349 144.124 142.591 ecceobj 0.675 0.677 0.673 incobj 43.964 43.964 43.963 qmin 45.505 44.339 44.945 qmax 241.106 243.461 239.315 amean 139.754 140.117 138.765 amin 137.058 137.295 136.195 amax 143.935 144.503 142.733 emean 0.666 0.671 0.665 emin 0.657 0.661 0.657 emax 0.676 0.685 0.677 imean 43.660 43.371 43.492 imin 43.103 42.637 42.880 imax 44.187 44.139 44.132 excite_mean 0.959 0.960 0.957 fracstop 1.000 1.000 1.000 cjmean 2.542 2.541 2.543 libcent 0 172.2 -180.0 -180.0 libamp 0 172.0 -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 202.2 206.7 203.8 kozaiamp 12.0 16.3 13.4