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: 15FB562 # Created Mon Jul 7 01:10:33 2025 # Orbit generated from Bernstein formalism # Fitting 23 observations of 23 # Arc: 63.90d # First observation: 2015/03/18 # Last observation: 2015/05/21 Preliminary a, adot, b, bdot, g, gdot: -0.000003 0.023142 0.000001 -0.005422 0.023043 0.000000 # WARNING Fitting with energy constraint # Chi-squared of fit: 14.59 DOF: 41 RMS: 0.14 # Min/Max residuals: -0.23 0.53 # Exact a, adot, b, bdot, g, gdot: 1.495772E-05 2.185253E-02 -3.414951E-06 -5.127319E-03 2.299818E-02 5.742525E-03 # Covariance matrix: 3.3406E-13 -7.2878E-12 -1.0039E-14 1.2301E-12 4.6254E-12 2.1881E-09 -7.2878E-12 1.1693E-08 5.3824E-12 -2.6735E-09 9.4173E-10 -8.7113E-07 -1.0039E-14 5.3824E-12 2.5333E-13 -2.6966E-12 -2.9065E-14 -5.6087E-10 1.2301E-12 -2.6735E-09 -2.6966E-12 6.2379E-10 -2.2186E-10 1.9720E-07 4.6254E-12 9.4173E-10 -2.9065E-14 -2.2186E-10 3.9638E-10 4.0137E-08 2.1881E-09 -8.7113E-07 -5.6087E-10 1.9720E-07 4.0137E-08 1.0298E-04 # lat0 lon0 xBary yBary zBary JD0 -9.350287 152.501493 -0.415720 -0.146225 -0.888888 2457099.901368 # Heliocentric elements and errors Epoch: 2457090.5000 = 2015/03/09 Mean Anomaly: 45.46253 +/- 19.782 Argument of Peri: 139.43666 +/- 26.624 Long of Asc Node: 298.79883 +/- 0.297 Inclination: 15.98876 +/- 0.115 Eccentricity: 0.29199108 +/- 0.4631 Semi-Major Axis: 51.96954054 +/- 14.5277 Time of Perihelion: 2439809.3438 +/- 2009.3 Perihelion: 36.79489828 +/- 26.1719 Aphelion: 67.14418281 +/- 30.5200 Period (y) 374.6550 +/- 157.10 # Ecliptic coordinates at JD0 (AU and AU/d) Ecliptic X -39.05122513 +/- 0.0329 Ecliptic Y 19.85689449 +/- 0.0172 Ecliptic Z -7.06460543 +/- 0.0061 Ecliptic XDOT -0.00171495 +/- 0.0011 Ecliptic YDOT -0.00204766 +/- 0.0006 Ecliptic ZDOT -0.00071326 +/- 0.0002 # Distances at JD0 (AU) Heliocenter to KBO 44.37570386 +/- 0.0300 Geocenter to KBO 43.48170080 +/- 0.0376 # Hcoef: 8.73
The following table shows the complete astrometric record for 15FB562. 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 (15FB562) followed by the observatory code and reference code for the source of the astrometry.
2015 03 18.40059 10 04 30.43 +01 50 34.7 25.2r 15FB562 T09 C~8vFX 2015 03 18.41927 10 04 30.34 +01 50 35.2 25.3r 15FB562 T09 C~8vFX 2015 03 18.43740 10 04 30.29 +01 50 35.6 24.9r 15FB562 T09 C~8vFX 2015 03 20.35051 10 04 23.01 +01 51 22.4 24.6i 15FB562 T09 C~8vFX 2015 03 20.37966 10 04 22.90 +01 51 23.2 24.2i 15FB562 T09 C~8vFX 2015 03 20.39412 10 04 22.84 +01 51 23.2 23.7i 15FB562 T09 C~8vFX 2015 05 17.25906 10 02 35.01 +02 09 01.2 26.6g 15FB562 T09 C~8vFX 2015 05 17.26292 10 02 35.01 +02 09 01.0 26.2g 15FB562 T09 C~8vFX 2015 05 17.27711 10 02 35.03 +02 09 01.0 26.1g 15FB562 T09 C~8vFX 2015 05 17.28396 10 02 35.02 +02 09 01.5 26.2g 15FB562 T09 C~8vFX 2015 05 17.29799 10 02 35.06 +02 09 01.8 26.5g 15FB562 T09 C~8vFX 2015 05 17.31259 10 02 35.03 +02 09 01.5 25.8g 15FB562 T09 C~8vFX 2015 05 21.25350 10 02 37.31 +02 09 29.9 24.8i 15FB562 T09 C~8vFX 2015 05 21.25735 10 02 37.29 +02 09 29.9 25.3i 15FB562 T09 C~8vFX 2015 05 21.26121 10 02 37.30 +02 09 30.2 25.3i 15FB562 T09 C~8vFX 2015 05 21.26506 10 02 37.30 +02 09 29.9 24.7i 15FB562 T09 C~8vFX 2015 05 21.27277 10 02 37.31 +02 09 29.9 25.1i 15FB562 T09 C~8vFX 2015 05 21.27663 10 02 37.30 +02 09 30.2 25.0i 15FB562 T09 C~8vFX 2015 05 21.28048 10 02 37.31 +02 09 30.1 24.8i 15FB562 T09 C~8vFX 2015 05 21.28433 10 02 37.31 +02 09 30.2 25.4i 15FB562 T09 C~8vFX 2015 05 21.28819 10 02 37.31 +02 09 30.2 25.1i 15FB562 T09 C~8vFX 2015 05 21.29204 10 02 37.32 +02 09 30.2 25.0i 15FB562 T09 C~8vFX 2015 05 21.29589 10 02 37.32 +02 09 30.2 24.6i 15FB562 T09 C~8vFX
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 0.01 0.00 -0.02
2 0.0001 -1.44 -0.23 -0.01 -0.07
3 0.0001 -2.28 0.08 0.10 0.00
4 0.0053 -120.92 0.03 5.36 0.08
5 0.0054 -122.74 0.03 5.53 0.17
6 0.0055 -123.59 0.09 5.21 -0.18
7 0.1639 -2009.47 -0.16 424.75 0.07
8 0.1639 -2009.40 -0.10 424.56 -0.15
9 0.1639 -2009.12 0.16 424.67 -0.18
10 0.1640 -2009.43 -0.17 425.08 0.17
11 0.1640 -2008.98 0.26 425.57 0.53
12 0.1640 -2009.29 -0.09 425.13 -0.05
13 0.1748 -1987.33 0.27 463.77 0.02
14 0.1748 -1987.61 -0.04 463.66 -0.13
15 0.1748 -1987.58 -0.03 463.99 0.17
16 0.1749 -1987.47 0.04 463.71 -0.15
17 0.1749 -1987.33 0.13 463.77 -0.17
18 0.1749 -1987.58 -0.15 463.99 0.03
19 0.1749 -1987.40 0.00 463.95 -0.05
20 0.1749 -1987.44 -0.06 464.05 0.01
21 0.1749 -1987.44 -0.09 464.05 -0.03
22 0.1749 -1987.30 0.02 464.10 -0.01
23 0.1749 -1987.30 -0.01 464.10 -0.05
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.
15FB562 quality flag:0 Type: ERR2LARGE ERR2LARGE ERR2LARGE axisobj 0.000 0.000 0.000 ecceobj -1.000 -1.000 -1.000 incobj -1.000 -1.000 -1.000 qmin 0.000 0.000 0.000 qmax 0.000 0.000 0.000 amean 0.000 0.000 0.000 amin 0.000 0.000 0.000 amax 0.000 0.000 0.000 emean 0.000 0.000 0.000 emin 0.000 0.000 0.000 emax 0.000 0.000 0.000 imean 0.000 0.000 0.000 imin 0.000 0.000 0.000 imax 0.000 0.000 0.000 excite_mean 0.000 0.000 0.000 fracstop 0.000 0.000 0.000 cjmean 0.000 0.000 0.000 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 0.0 0.0 0.0 kozaiamp 0.0 0.0 0.0