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: 14SG404 # Created Sat Apr 20 01:16:26 2024 # Orbit generated from Bernstein formalism # Fitting 17 observations of 17 # Arc: 4.17y # First observation: 2014/09/30 # Last observation: 2018/12/02 Preliminary a, adot, b, bdot, g, gdot: -0.000030 0.029848 -0.000152 0.010659 0.025671 0.000000 # Chi-squared of fit: 5.29 DOF: 28 RMS: 0.10 # Min/Max residuals: -0.20 0.21 # Exact a, adot, b, bdot, g, gdot: 1.799289E-05 2.971691E-02 6.788718E-06 1.053400E-02 2.589314E-02 -2.964370E-03 # Covariance matrix: 4.9564E-13 -4.8806E-13 1.0478E-13 -1.7637E-13 1.5921E-14 -3.9825E-12 -4.8806E-13 7.2909E-13 -1.9619E-13 3.0718E-13 6.0303E-14 6.8562E-12 1.0478E-13 -1.9619E-13 3.3304E-13 -1.9966E-13 -5.3773E-14 -1.9750E-12 -1.7637E-13 3.0718E-13 -1.9966E-13 2.0791E-13 2.1803E-14 3.1829E-12 1.5921E-14 6.0303E-14 -5.3773E-14 2.1803E-14 2.6047E-13 2.5302E-13 -3.9825E-12 6.8562E-12 -1.9750E-12 3.1829E-12 2.5302E-13 7.1381E-11 # lat0 lon0 xBary yBary zBary JD0 -26.043996 16.478166 0.170269 -0.434219 -0.888919 2456930.746968 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 355.21461 +/- 0.013 Argument of Peri: 321.49764 +/- 0.046 Long of Asc Node: 66.76812 +/- 0.001 Inclination: 31.60219 +/- 0.000 Eccentricity: 0.50106439 +/- 0.0001 Semi-Major Axis: 78.10260227 +/- 0.0144 Time of Perihelion: 2460281.7888 +/- 9.0 Perihelion: 38.96816967 +/- 0.0101 Aphelion: 117.23703486 +/- 0.0228 Period (y) 690.2501 +/- 0.19 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 34.26794752 +/- 0.0007 Ecliptic Y 9.96162470 +/- 0.0002 Ecliptic Z -16.95645901 +/- 0.0003 Ecliptic XDOT -0.00069698 +/- 0.0000 Ecliptic YDOT 0.00306732 +/- 0.0000 Ecliptic ZDOT 0.00113846 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 39.51009613 +/- 0.0006 Geocenter to KBO 38.62026611 +/- 0.0008 # Hcoef: 7.76
The following table shows the complete astrometric record for 14SG404. 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 (14SG404) followed by the observatory code and reference code for the source of the astrometry.
2014 09 30.24619 01 41 27.788 -17 32 42.77 23.8r 14SG404 W84 C~55S9 2015 01 12.08409 01 35 28.198 -17 14 20.68 24.1r 14SG404 W84 C~55S9 2015 01 12.08546 01 35 28.210 -17 14 20.44 24.4g 14SG404 W84 C~55S9 2015 08 24.40383 01 49 11.552 -15 56 14.90 23.5i 14SG404 W84 C~55S9 2015 08 24.40521 01 49 11.545 -15 56 14.87 24.5r 14SG404 W84 C~55S9 2015 08 24.40661 01 49 11.548 -15 56 15.03 23.9r 14SG404 W84 C~55S9 2015 10 07.20837 01 46 26.001 -16 21 26.21 24.6g 14SG404 W84 C~55S9 2015 11 30.18274 01 42 10.247 -16 26 58.96 23.2i 14SG404 W84 C~55S9 2015 12 01.08738 01 42 06.962 -16 26 42.99 23.3r 14SG404 W84 C~55S9 2016 09 30.26542 01 52 23.480 -15 03 11.28 23.4r 14SG404 W84 C~55S9 2016 09 30.26680 01 52 23.465 -15 03 11.38 23.6i 14SG404 W84 C~55S9 2016 10 02.23330 01 52 14.291 -15 04 09.24 23.0i 14SG404 W84 C~55S9 2016 10 02.23468 01 52 14.266 -15 04 09.35 23.4r 14SG404 W84 C~55S9 2017 10 30.27947 01 55 21.042 -13 57 43.97 23.1z 14SG404 W84 C~55S9 2017 11 17.12871 01 53 54.183 -13 59 07.00 24.4g 14SG404 W84 C~55S9 2017 11 24.16543 01 53 23.265 -13 58 26.35 23.9r 14SG404 W84 C~55S9 2018 12 02.13009 01 58 14.793 -12 40 49.68 23.2r 14SG404 W84 C~55S9
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 -0.07
2 0.2843 -4289.44 -0.09 3053.08 0.08
3 0.2843 -4289.19 0.13 3053.23 0.17
4 0.8984 8438.58 -0.01 2599.61 -0.07
5 0.8985 8438.50 -0.03 2599.68 0.03
6 0.8985 8438.47 0.01 2599.51 -0.10
7 1.0184 5640.94 -0.11 2190.30 -0.07
8 1.1662 2137.72 -0.12 3370.27 -0.20
9 1.1686 2100.82 0.13 3403.85 0.05
10 2.0014 12286.54 0.05 4367.68 0.14
11 2.0014 12286.30 -0.09 4367.68 0.14
12 2.0068 12140.84 0.21 4369.65 -0.09
13 2.0068 12140.46 -0.06 4369.70 -0.04
14 3.0829 16281.81 -0.12 6888.16 0.10
15 3.1318 15089.73 0.00 7336.69 0.09
16 3.1510 14694.70 0.01 7560.04 -0.04
17 4.1722 20551.91 0.06 10053.48 -0.11
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.
14SG404 quality flag:3 Type: SCATNEAR SCATNEAR SCATNEAR axisobj 79.529 79.575 79.483 ecceobj 0.510 0.510 0.509 incobj 31.595 31.595 31.595 qmin 38.205 38.147 37.808 qmax 120.635 120.650 121.217 amean 78.378 78.378 78.378 amin 77.343 77.370 77.280 amax 79.875 79.904 79.934 emean 0.502 0.502 0.503 emin 0.491 0.489 0.492 emax 0.512 0.513 0.517 imean 30.425 30.422 30.325 imin 30.071 30.022 29.926 imax 30.721 30.824 30.752 excite_mean 0.713 0.713 0.713 fracstop 1.000 1.000 1.000 cjmean 2.791 2.791 2.791 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 139.2 141.4 133.4 kozaiamp 180.0 180.0 180.0