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: 17EE52
# Created Tue Apr 1 01:11:06 2025
# Orbit generated from Bernstein formalism
# Fitting 14 observations of 14
# Arc: 3.00y
# First observation: 2016/04/04
# Last observation: 2019/04/06
Preliminary a, adot, b, bdot, g, gdot:
-0.000178 0.025032 -0.000005 0.000392 0.024504 0.000000
# Chi-squared of fit: 4.76 DOF: 22 RMS: 0.10
# Min/Max residuals: -0.23 0.19
# Exact a, adot, b, bdot, g, gdot:
1.603152E-05 2.482152E-02 -6.578224E-07 3.857504E-04 2.449446E-02 -1.551026E-03
# Covariance matrix:
1.4661E-12 -1.9394E-12 1.5879E-14 -2.7397E-14 -6.3305E-13 -1.9392E-11
-1.9394E-12 2.9466E-12 -2.6664E-14 4.4195E-14 8.6582E-13 3.1015E-11
1.5879E-14 -2.6664E-14 3.4448E-13 -1.6020E-13 2.8822E-15 -2.9628E-13
-2.7397E-14 4.4195E-14 -1.6020E-13 1.0719E-13 9.5416E-15 4.8444E-13
-6.3305E-13 8.6582E-13 2.8822E-15 9.5416E-15 1.4669E-12 8.8964E-12
-1.9392E-11 3.1015E-11 -2.9628E-13 4.8444E-13 8.8964E-12 3.3894E-10
# lat0 lon0 xBary yBary zBary JD0
6.267993 -168.894289 -0.065306 0.108655 -0.988088 2457482.998575
# Heliocentric elements and errors
Epoch: 2457480.5000 = 2016/04/02
Mean Anomaly: 331.88572 +/- 0.270
Argument of Peri: 117.13160 +/- 0.357
Long of Asc Node: 109.27313 +/- 0.007
Inclination: 6.17948 +/- 0.000
Eccentricity: 0.11454654 +/- 0.0004
Semi-Major Axis: 46.34211787 +/- 0.0097
Time of Perihelion: 2466479.3426 +/- 86.5
Perihelion: 41.03378860 +/- 0.0212
Aphelion: 51.65044714 +/- 0.0222
Period (y) 315.4801 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -40.78805771 +/- 0.0020
Ecliptic Y -8.07505988 +/- 0.0004
Ecliptic Z 4.45730510 +/- 0.0002
Ecliptic XDOT 0.00070825 +/- 0.0000
Ecliptic YDOT -0.00269533 +/- 0.0000
Ecliptic ZDOT 0.00002394 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 41.81793649 +/- 0.0019
Geocenter to KBO 40.82556286 +/- 0.0020
# Hcoef: 8.06
The following table shows the complete astrometric record for 17EE52. 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 (17EE52) followed by the observatory code and reference code for the source of the astrometry.
2016 04 04.497786 12 50 38.34 +01 22 32.5 17EE52 T09 C~81Bz 2017 03 06.57754 12 57 59.58 +00 36 03.0 24.4r 17EE52 T09 C~7zpq 2017 03 06.59888 12 57 59.51 +00 36 03.7 24.5r 17EE52 T09 C~7zpq 2017 03 06.64379 12 57 59.33 +00 36 05.2 24.6r 17EE52 T09 C~7zpq 2017 03 29.43767 12 56 24.19 +00 47 15.9 24.1z 17EE52 T09 C~7zpq 2017 03 29.44104 12 56 24.16 +00 47 16.2 23.6z 17EE52 T09 C~7zpq 2017 03 29.48126 12 56 23.99 +00 47 17.2 23.5z 17EE52 T09 C~7zpq 2017 04 29.30107 12 54 09.93 +01 00 33.9 24.0z 17EE52 T09 C~7zpq 2017 04 29.34433 12 54 09.74 +01 00 34.9 23.8z 17EE52 T09 C~7zpq 2017 04 29.39320 12 54 09.56 +01 00 35.7 24.2z 17EE52 T09 C~7zpq 2019 04 06.37374 13 06 28.53 -00 13 56.9 24.2i 17EE52 T09 C~81Bz 2019 04 06.42173 13 06 28.31 -00 13 55.7 23.8i 17EE52 T09 C~81Bz 2019 04 06.45208 13 06 28.18 -00 13 54.7 23.9i 17EE52 T09 C~81Bz 2019 04 06.52046 13 06 27.86 -00 13 52.9 24.0i 17EE52 T09 C~81Bz
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 -0.00 0.00 0.19
2 0.9201 7184.35 0.01 17.93 -0.12
3 0.9202 7183.11 0.14 18.16 0.03
4 0.9203 7180.03 -0.05 18.49 0.18
5 0.9827 5602.88 0.06 78.01 -0.08
6 0.9827 5602.35 -0.23 78.11 0.02
7 0.9828 5599.61 0.01 78.03 -0.07
8 1.0672 3436.45 0.05 25.57 -0.05
9 1.0673 3433.43 -0.17 25.38 -0.05
10 1.0675 3430.63 0.19 25.06 -0.15
11 3.0031 15409.36 -0.07 242.79 0.08
12 3.0032 15405.84 -0.01 242.60 -0.06
13 3.0033 15403.64 0.06 242.76 0.12
14 3.0035 15398.49 0.01 242.54 -0.03
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.
17EE52 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 45.778 45.805 45.751 ecceobj 0.105 0.105 0.105 incobj 6.179 6.179 6.179 qmin 40.502 40.526 40.495 qmax 51.870 51.953 51.838 amean 46.054 46.081 46.028 amin 45.671 45.699 45.642 amax 46.463 46.500 46.432 emean 0.104 0.104 0.104 emin 0.091 0.091 0.091 emax 0.117 0.118 0.117 imean 4.520 4.522 4.518 imin 4.095 4.093 4.093 imax 4.981 4.983 4.979 excite_mean 0.130 0.131 0.130 fracstop 1.000 1.000 1.000 cjmean 3.106 3.106 3.106 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 182.6 182.6 182.6 kozaiamp 180.0 180.0 180.0