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: 23PE5
# Created Wed Apr 16 01:11:35 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 11 observations of 11
# Arc: 6.30y
# First observation: 2018/06/16
# Last observation: 2024/10/04
# Chi-squared of fit: 1.96 DOF: 16 RMS: 0.07
# Min/Max residuals: -0.17 0.15
# Exact a, adot, b, bdot, g, gdot:
2.084392E-05 4.741250E-02 3.571697E-06 7.205398E-03 3.613951E-02 2.486397E-03
# Covariance matrix:
4.8873E-13 -1.7123E-13 1.3681E-15 -1.4035E-14 -2.8803E-14 -3.5162E-13
-1.7123E-13 1.2425E-12 -1.9015E-14 1.6746E-13 1.4839E-12 3.8930E-12
1.3681E-15 -1.9015E-14 4.8117E-13 -8.9503E-14 -2.1163E-14 -6.2827E-14
-1.4035E-14 1.6746E-13 -8.9503E-14 4.7767E-14 1.1361E-13 6.3458E-13
-2.8803E-14 1.4839E-12 -2.1163E-14 1.1361E-13 4.5055E-12 1.7137E-12
-3.5162E-13 3.8930E-12 -6.2827E-14 6.3458E-13 1.7137E-12 1.5789E-11
# lat0 lon0 xBary yBary zBary JD0
3.148774 -72.986872 0.380098 0.051398 -0.933247 2458285.814951
# Heliocentric elements and errors
Epoch: 2458286.5000 = 2018/06/17
Mean Anomaly: 5.47383 +/- 0.011
Argument of Peri: 9.18875 +/- 0.021
Long of Asc Node: 267.02053 +/- 0.001
Inclination: 9.17719 +/- 0.000
Eccentricity: 0.28634134 +/- 0.0002
Semi-Major Axis: 39.95009840 +/- 0.0129
Time of Perihelion: 2456884.1243 +/- 2.9
Perihelion: 28.51073354 +/- 0.0120
Aphelion: 51.38946325 +/- 0.0183
Period (y) 252.5137 +/- 0.12
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 7.99374979 +/- 0.0005
Ecliptic Y -27.43133689 +/- 0.0016
Ecliptic Z 1.52004508 +/- 0.0001
Ecliptic XDOT 0.00348796 +/- 0.0000
Ecliptic YDOT 0.00089596 +/- 0.0000
Ecliptic ZDOT 0.00055522 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 28.61271565 +/- 0.0015
Geocenter to KBO 27.67054830 +/- 0.0016
# Hcoef: 8.41
The following table shows the complete astrometric record for 23PE5. 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 (23PE5) followed by the observatory code and reference code for the source of the astrometry.
2018 06 16.31415 19 12 05.79 -19 13 56.3 22.9V 23PE5 W84 C~8nlW 2018 06 17.13121 19 12 00.59 -19 13 59.8 23PE5 W84 C~8nlW 2018 06 17.40950 19 11 58.79 -19 14 01.1 23PE5 W84 C~8nlW 2023 08 13.33054 20 00 04.817 -15 18 55.97 23.2r 23PE5 T09 C~8nlW 2023 08 13.46930 20 00 03.956 -15 18 58.50 23.3r 23PE5 T09 C~8nlW 2023 09 14.00241 19 57 32.386 -15 28 01.66 23.1r 23PE5 269 C~8nlW 2023 09 15.00890 19 57 29.203 -15 28 16.06 23.0r 23PE5 269 C~8nlW 2023 10 06.02087 19 56 52.231 -15 32 18.72 22.9r 23PE5 269 C~8nlW 2023 10 07.01258 19 56 51.943 -15 32 26.64 22.9r 23PE5 269 C~8nlW 2024 10 03.15244 20 07 03.363 -14 40 01.48 23PE5 G37 C~8nlW 2024 10 04.11711 20 07 02.474 -14 40 11.83 23PE5 G37 C~8nlW
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 -0.09
2 0.0022 0.00 -0.11 0.00 0.06
3 0.0030 0.00 0.10 0.00 0.03
4 5.1582 0.00 0.01 0.00 0.02
5 5.1585 0.00 -0.02 0.00 0.04
6 5.2449 0.00 -0.04 0.00 -0.17
7 5.2476 0.00 0.03 0.00 0.15
8 5.3052 0.00 0.09 0.00 -0.05
9 5.3079 0.00 -0.05 0.00 -0.03
10 6.2994 0.00 0.05 0.00 0.05
11 6.3020 0.00 -0.06 0.00 -0.01
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.
23PE5 quality flag:3 Type: 3:2E 3:2E 3:2E axisobj 39.386 39.386 39.386 ecceobj 0.277 0.277 0.277 incobj 9.212 9.212 9.212 qmin 27.868 27.769 27.874 qmax 51.880 51.956 51.905 amean 39.456 39.456 39.456 amin 38.895 38.902 38.900 amax 40.099 40.125 40.121 emean 0.279 0.279 0.279 emin 0.266 0.263 0.265 emax 0.295 0.295 0.295 imean 10.895 10.898 10.921 imin 10.365 10.355 10.333 imax 11.471 11.449 11.494 excite_mean 0.337 0.337 0.337 fracstop 1.000 1.000 1.000 cjmean 2.922 2.922 2.922 libcent 0 179.0 177.7 179.0 libamp 0 126.8 125.7 125.4 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 170.0 165.4 171.3 kozaiamp 179.9 180.0 179.9