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: 14SJ404 # Created Sun Dec 22 02:10:04 2024 # Orbit generated from Bernstein formalism # Fitting 22 observations of 22 # Arc: 4.17y # First observation: 2014/09/30 # Last observation: 2018/12/03 Preliminary a, adot, b, bdot, g, gdot: -0.000095 0.042023 -0.000071 0.004029 0.033631 0.000000 # Chi-squared of fit: 8.63 DOF: 38 RMS: 0.11 # Min/Max residuals: -0.33 0.25 # Exact a, adot, b, bdot, g, gdot: 1.869376E-05 4.158149E-02 1.906073E-06 3.997824E-03 3.350677E-02 -3.299015E-03 # Covariance matrix: 2.4799E-13 -1.0917E-13 -4.9887E-15 -8.8195E-15 1.0433E-13 -4.5892E-13 -1.0917E-13 3.2873E-13 -1.6412E-14 3.8962E-14 9.8751E-14 2.2190E-12 -4.9887E-15 -1.6412E-14 1.7287E-13 -5.6781E-14 -1.9892E-14 -1.1460E-13 -8.8195E-15 3.8962E-14 -5.6781E-14 3.3819E-14 9.6087E-15 2.8968E-13 1.0433E-13 9.8751E-14 -1.9892E-14 9.6087E-15 2.5497E-13 6.2624E-13 -4.5892E-13 2.2190E-12 -1.1460E-13 2.8968E-13 6.2624E-13 1.6462E-11 # lat0 lon0 xBary yBary zBary JD0 -23.685225 26.272882 0.335900 -0.379861 -0.866362 2456930.758288 # Heliocentric elements and errors Epoch: 2456930.5000 = 2014/09/30 Mean Anomaly: 342.84247 +/- 0.016 Argument of Peri: 310.10740 +/- 0.028 Long of Asc Node: 102.34342 +/- 0.001 Inclination: 23.53717 +/- 0.000 Eccentricity: 0.23271965 +/- 0.0001 Semi-Major Axis: 39.14962346 +/- 0.0031 Time of Perihelion: 2461194.7435 +/- 4.1 Perihelion: 30.03873674 +/- 0.0034 Aphelion: 48.26051018 +/- 0.0045 Period (y) 244.9625 +/- 0.03 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X 25.50167807 +/- 0.0004 Ecliptic Y 12.21724450 +/- 0.0002 Ecliptic Z -11.98895441 +/- 0.0002 Ecliptic XDOT -0.00161226 +/- 0.0000 Ecliptic YDOT 0.00299084 +/- 0.0000 Ecliptic ZDOT 0.00040755 +/- 0.0000 # Distances at JD0 (AU) Heliocenter to KBO 30.71370501 +/- 0.0003 Geocenter to KBO 29.84471792 +/- 0.0004 # Hcoef: 8.52
The following table shows the complete astrometric record for 14SJ404. 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 (14SJ404) followed by the observatory code and reference code for the source of the astrometry.
2014 09 30.25751 02 11 41.528 -11 57 55.21 24.1g 14SJ404 W84 C~55S9 2014 10 02.36220 02 11 30.133 -11 59 27.77 23.8g 14SJ404 W84 C~55S9 2014 10 02.37780 02 11 30.049 -11 59 28.54 23.6r 14SJ404 W84 C~55S9 2014 10 31.29779 02 08 35.893 -12 15 49.11 23.0r 14SJ404 W84 C~55S9 2014 11 28.20641 02 05 53.852 -12 19 35.99 24.1g 14SJ404 W84 C~55S9 2014 11 28.20778 02 05 53.836 -12 19 35.79 23.7r 14SJ404 W84 C~55S9 2014 12 15.17159 02 04 40.348 -12 15 05.72 23.0r 14SJ404 W84 C~55S9 2014 12 20.15491 02 04 24.126 -12 12 48.53 23.6r 14SJ404 W84 C~55S9 2015 12 04.19156 02 14 06.350 -11 14 25.62 23.4r 14SJ404 W84 C~55S9 2016 09 11.39762 02 30 25.809 -09 31 24.14 22.9i 14SJ404 W84 C~55S9 2016 09 23.30963 02 29 38.083 -09 40 49.30 23.3r 14SJ404 W84 C~55S9 2016 11 25.18965 02 23 30.127 -10 09 25.74 23.7r 14SJ404 W84 C~55S9 2017 01 30.03915 02 20 55.686 -09 33 29.46 23.1i 14SJ404 W84 C~55S9 2017 08 25.40072 02 39 42.649 -08 10 27.16 22.2i 14SJ404 W84 C~55S9 2017 10 21.23270 02 35 49.378 -08 51 34.93 23.4i 14SJ404 W84 C~55S9 2017 10 21.23408 02 35 49.373 -08 51 35.00 23.5r 14SJ404 W84 C~55S9 2017 11 25.16162 02 32 13.153 -09 02 11.06 23.2i 14SJ404 W84 C~55S9 2017 12 09.11803 02 30 59.487 -09 00 51.54 23.1r 14SJ404 W84 C~55SA 2017 12 15.08130 02 30 32.673 -08 59 15.50 24.4g 14SJ404 W84 C~55SA 2018 11 17.19558 02 41 44.571 -07 52 44.10 22.6i 14SJ404 W84 C~55SA 2018 11 29.21652 02 40 32.907 -07 53 47.39 23.1r 14SJ404 W84 C~55SA 2018 12 03.12424 02 40 11.232 -07 53 36.97 24.2g 14SJ404 W84 C~55SA
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 0.19 0.00 -0.00
2 0.0058 -189.44 -0.02 -25.24 0.07
3 0.0058 -190.87 -0.01 -25.51 -0.03
4 0.0850 -2926.83 -0.09 -11.46 -0.03
5 0.1614 -5224.52 -0.02 633.99 -0.09
6 0.1614 -5224.67 -0.08 634.26 0.14
7 0.2078 -6133.62 -0.04 1273.43 0.02
8 0.2215 -6306.62 0.08 1486.88 -0.04
9 1.1771 2934.94 0.07 1651.10 0.07
10 1.9497 18699.84 -0.08 2003.21 -0.08
11 1.9823 17825.64 -0.04 1745.91 -0.12
12 2.1545 12112.02 -0.15 2199.26 0.06
13 2.3348 10794.80 0.06 5055.51 0.03
14 2.9025 28308.41 0.03 3358.55 -0.33
15 3.0581 24098.03 0.02 2394.48 -0.01
16 3.0581 24097.93 0.06 2394.45 -0.05
17 3.1537 20855.50 -0.10 3028.69 0.25
18 3.1920 19866.62 0.15 3517.94 -0.02
19 3.2083 19532.44 0.04 3758.15 0.17
20 4.1312 30431.87 -0.12 3647.87 -0.28
21 4.1642 29403.97 0.05 4002.04 0.18
22 4.1749 29104.95 0.01 4136.51 0.09
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.
14SJ404 quality flag:3 Type: CENTAURS CENTAURS CENTAURS axisobj 39.491 39.501 39.482 ecceobj 0.238 0.238 0.238 incobj 23.547 23.547 23.547 qmin 29.215 29.247 29.192 qmax 50.609 50.401 50.619 amean 39.457 39.456 39.460 amin 38.893 38.891 38.774 amax 40.105 40.102 40.257 emean 0.135 0.135 0.185 emin 0.021 0.022 0.128 emax 0.262 0.259 0.262 imean 23.704 23.904 22.403 imin 20.669 20.808 20.619 imax 25.467 25.844 24.689 excite_mean 0.429 0.434 0.425 fracstop 1.000 1.000 1.000 cjmean 2.836 2.831 2.843 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 126.4 135.2 163.7 kozaiamp 180.0 180.0 180.0