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: 23PF5
# Created Sun Apr 27 01:11:33 2025
# Orbit generated from Bernstein formalism
# Fitting 6 observations of 6
# Arc: 1.14y
# First observation: 2023/08/13
# Last observation: 2024/10/03
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.014670 0.000001 0.002744 0.018306 0.000000
# Chi-squared of fit: 0.46 DOF: 6 RMS: 0.05
# Min/Max residuals: -0.10 0.10
# Exact a, adot, b, bdot, g, gdot:
1.292840E-05 1.467825E-02 1.923807E-06 2.778397E-03 1.829876E-02 1.067787E-02
# Covariance matrix:
7.3663E-13 4.9835E-13 -8.5923E-15 8.9142E-14 1.4975E-12 2.5966E-11
4.9835E-13 1.4326E-10 -6.7433E-12 1.7501E-10 1.0150E-10 5.4500E-08
-8.5923E-15 -6.7433E-12 7.1963E-13 -8.7604E-12 -4.7232E-12 -2.6121E-09
8.9142E-14 1.7501E-10 -8.7604E-12 2.1899E-10 1.2223E-10 6.7915E-08
1.4975E-12 1.0150E-10 -4.7232E-12 1.2223E-10 7.4681E-11 3.8060E-08
2.5966E-11 5.4500E-08 -2.6121E-09 6.7915E-08 3.8060E-08 2.1151E-05
# lat0 lon0 xBary yBary zBary JD0
5.297807 -15.194155 0.426188 0.084077 -0.909495 2460170.005101
# Heliocentric elements and errors
Epoch: 2460170.5000 = 2023/08/14
Mean Anomaly: 21.27654 +/- 23.160
Argument of Peri: 292.15088 +/- 2.045
Long of Asc Node: 318.79031 +/- 0.104
Inclination: 11.92534 +/- 0.044
Eccentricity: 0.66823470 +/- 0.2916
Semi-Major Axis: 95.81487850 +/- 67.9227
Time of Perihelion: 2439924.1648 +/- 4712.8
Perihelion: 31.78805214 +/- 35.8918
Aphelion: 159.84170486 +/- 116.7039
Period (y) 937.9024 +/- 997.31
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 53.29137078 +/- 0.0248
Ecliptic Y -14.90984700 +/- 0.0067
Ecliptic Z 5.04598027 +/- 0.0024
Ecliptic XDOT 0.00207033 +/- 0.0007
Ecliptic YDOT 0.00172066 +/- 0.0002
Ecliptic ZDOT 0.00056145 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 55.56739740 +/- 0.0238
Geocenter to KBO 54.64851231 +/- 0.0258
# Hcoef: 7.50
The following table shows the complete astrometric record for 23PF5. 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 (23PF5) followed by the observatory code and reference code for the source of the astrometry.
2023 08 13.50430 22 55 51.744 -01 05 38.86 24.8r 23PF5 T09 C~8nlW 2023 08 13.57965 22 55 51.510 -01 05 40.18 24.8r 23PF5 T09 C~8nlW 2023 09 14.10495 22 54 03.704 -01 15 28.45 24.8r 23PF5 269 C~8nlW 2023 09 15.10196 22 54 00.266 -01 15 48.98 25.0r 23PF5 269 C~8nlW 2024 10 03.04962 22 55 51.154 -00 54 07.80 25.0r 23PF5 269 C~8nlW 2024 10 03.08993 22 55 51.028 -00 54 08.53 24.8r 23PF5 269 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 -0.05 0.00 0.10
2 0.0002 -3.75 0.05 0.13 -0.10
3 0.0865 -1722.49 0.01 77.55 -0.01
4 0.0892 -1777.98 -0.01 78.38 0.01
5 1.1404 257.16 0.00 641.50 -0.04
6 1.1405 255.13 -0.00 641.55 0.04
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.
23PF5 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