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: 15TH367
# Created Sun Dec 22 02:10:31 2024
# Orbit generated from Bernstein formalism
# Fitting 10 observations of 10
# Arc: 2.10y
# First observation: 2014/08/26
# Last observation: 2016/10/02
Preliminary a, adot, b, bdot, g, gdot:
0.000003 0.005527 -0.000002 -0.000971 0.011432 0.000000
# Chi-squared of fit: 4.48 DOF: 14 RMS: 0.12
# Min/Max residuals: -0.28 0.23
# Exact a, adot, b, bdot, g, gdot:
7.683898E-06 5.545656E-03 -1.332224E-06 -9.753672E-04 1.145075E-02 4.496037E-03
# Covariance matrix:
7.1422E-13 -1.0398E-12 -3.3319E-14 1.3492E-13 -9.1756E-13 -7.2447E-11
-1.0398E-12 2.4654E-11 8.1991E-13 -4.4734E-12 4.3379E-11 2.2780E-09
-3.3319E-14 8.1991E-13 5.8002E-13 -4.8735E-13 1.4365E-12 7.7085E-11
1.3492E-13 -4.4734E-12 -4.8735E-13 1.1010E-12 -7.9478E-12 -4.1837E-10
-9.1756E-13 4.3379E-11 1.4365E-12 -7.9478E-12 7.7990E-11 4.0385E-09
-7.2447E-11 2.2780E-09 7.7085E-11 -4.1837E-10 4.0385E-09 2.1322E-07
# lat0 lon0 xBary yBary zBary JD0
4.921002 39.544444 0.929363 0.034742 -0.402320 2456896.062956
# Heliocentric elements and errors
Epoch: 2456890.5000 = 2014/08/21
Mean Anomaly: 66.64996 +/- 10.398
Argument of Peri: 16.32441 +/- 2.993
Long of Asc Node: 245.24702 +/- 0.026
Inclination: 10.94309 +/- 0.010
Eccentricity: 0.62145992 +/- 0.0297
Semi-Major Axis: 78.03187837 +/- 4.7229
Time of Perihelion: 2410277.8346 +/- 5914.0
Perihelion: 29.53819325 +/- 2.9260
Aphelion: 126.52556348 +/- 8.0006
Period (y) 689.3127 +/- 62.58
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 67.99544927 +/- 0.0517
Ecliptic Y 54.93879090 +/- 0.0427
Ecliptic Z 7.49130565 +/- 0.0058
Ecliptic XDOT -0.00000772 +/- 0.0001
Ecliptic YDOT 0.00171277 +/- 0.0001
Ecliptic ZDOT -0.00014002 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 87.73694505 +/- 0.0482
Geocenter to KBO 87.33053750 +/- 0.0674
# Hcoef: 6.44
The following table shows the complete astrometric record for 15TH367. 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 (15TH367) followed by the observatory code and reference code for the source of the astrometry.
2014 08 26.562178 02 21 58.21 +19 19 51.7 25.4r 15TH367 T14 C~6pom 2014 08 27.520618 02 21 57.28 +19 19 49.6 25.5r 15TH367 T14 C~6pom 2015 10 13.36245 02 21 54.932 +19 17 30.56 25.9r 15TH367 568 C~2ZsR 2015 10 13.45462 02 21 54.712 +19 17 29.43 25.9r 15TH367 568 C~2ZsR 2015 10 13.60243 02 21 54.352 +19 17 27.88 25.9r 15TH367 568 C~2ZsR 2015 11 07.304463 02 20 53.087 +19 12 24.85 26.0r 15TH367 568 C~2ZsR 2015 11 07.360705 02 20 52.943 +19 12 23.98 26.0r 15TH367 568 C~2ZsR 2016 09 26.27314 02 23 51.533 +19 23 06.81 25.9r 15TH367 304 C~2ZsR 2016 09 26.31303 02 23 51.417 +19 23 06.30 25.8r 15TH367 304 C~2ZsR 2016 10 02.555929 02 23 38.328 +19 22 11.30 25.8r 15TH367 568 C~2ZsR
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 -0.00
2 0.0026 -13.13 -0.04 2.29 -0.18
3 1.1302 -89.77 0.06 -118.39 0.19
4 1.1304 -93.08 0.05 -118.44 0.06
5 1.1308 -98.40 0.05 -118.25 0.15
6 1.1985 -1017.40 -0.00 -122.04 0.06
7 1.1986 -1019.61 -0.07 -122.19 -0.06
8 2.0855 1580.56 0.23 -334.66 -0.01
9 2.0856 1578.84 -0.28 -334.61 -0.03
10 2.1027 1385.78 0.01 -326.91 -0.17
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.
15TH367 quality flag:1 Type: CENTAURR CENTAURR CENTAURS axisobj 78.899 99.780 68.383 ecceobj 0.620 0.716 0.540 incobj 10.911 10.886 10.937 qmin 28.929 27.210 29.417 qmax 136.716 176.184 107.324 amean 79.856 98.787 60.026 amin 76.956 94.634 53.630 amax 83.122 102.102 69.256 emean 0.630 0.717 0.484 emin 0.616 0.700 0.423 emax 0.645 0.727 0.554 imean 12.009 12.184 12.285 imin 11.772 11.963 9.617 imax 12.268 12.449 15.042 excite_mean 0.663 0.747 0.530 fracstop 0.011 0.030 1.000 cjmean 2.854 2.775 2.911 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 20.9 29.9 169.4 kozaiamp 4.3 6.5 180.0