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: 23PJ5
# Created Wed May 21 01:11:39 2025
# Orbit generated by ELGB
# -->Covariance matrix from a Bernstein fit
# Fitting 15 observations of 15
# Arc: 15.31y
# First observation: 2008/06/13
# Last observation: 2023/10/07
# Chi-squared of fit: 5.52 DOF: 24 RMS: 0.11
# Min/Max residuals: -0.24 0.30
# Exact a, adot, b, bdot, g, gdot:
1.933957E-05 3.836699E-02 -1.281326E-06 -1.261595E-03 3.108230E-02 -5.292776E-03
# Covariance matrix:
7.3387E-13 -1.0968E-13 -3.7036E-15 2.2005E-15 -4.6125E-14 -8.7763E-14
-1.0968E-13 4.9217E-14 2.9413E-15 -1.6832E-15 -1.3456E-15 6.5343E-14
-3.7036E-15 2.9413E-15 6.2383E-13 -4.3161E-14 -2.1219E-15 4.4931E-15
2.2005E-15 -1.6832E-15 -4.3161E-14 3.4135E-15 9.2447E-16 -2.5281E-15
-4.6125E-14 -1.3456E-15 -2.1219E-15 9.2447E-16 1.7195E-13 -2.7524E-14
-8.7763E-14 6.5343E-14 4.4931E-15 -2.5281E-15 -2.7524E-14 9.6896E-14
# lat0 lon0 xBary yBary zBary JD0
2.469256 -95.988996 0.028222 0.043571 -1.009569 2454630.760565
# Heliocentric elements and errors
Epoch: 2454630.5000 = 2008/06/13
Mean Anomaly: 344.72685 +/- 0.003
Argument of Peri: 160.19590 +/- 0.005
Long of Asc Node: 135.66374 +/- 0.001
Inclination: 3.04914 +/- 0.000
Eccentricity: 0.33784890 +/- 0.0000
Semi-Major Axis: 48.20462527 +/- 0.0043
Time of Perihelion: 2459816.8010 +/- 15.7
Perihelion: 31.91874586 +/- 0.0036
Aphelion: 64.49050468 +/- 0.0062
Period (y) 334.6889 +/- 0.04
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -3.48567841 +/- 0.0000
Ecliptic Y -32.97438130 +/- 0.0004
Ecliptic Z 1.38608030 +/- 0.0000
Ecliptic XDOT 0.00341551 +/- 0.0000
Ecliptic YDOT 0.00010688 +/- 0.0000
Ecliptic ZDOT -0.00013122 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 33.18714771 +/- 0.0004
Geocenter to KBO 32.17277995 +/- 0.0004
# Hcoef: 8.03
The following table shows the complete astrometric record for 23PJ5. 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 (23PJ5) followed by the observatory code and reference code for the source of the astrometry.
2008 06 13.259811 17 34 23.08 -20 50 13.2 23PJ5 809 C~8rAj 2008 06 13.277784 17 34 22.96 -20 50 13.4 23PJ5 809 C~8rAj 2018 06 16.298949 19 12 21.56 -20 50 25.3 23PJ5 W84 C~8rAj 2018 06 16.397985 19 12 20.99 -20 50 26.3 23PJ5 W84 C~8rAj 2019 06 08.323020 19 23 10.51 -20 36 56.2 23PJ5 W84 C~8rAj 2023 05 16.303970 20 04 20.90 -19 23 07.4 23PJ5 W84 C~8rAj 2023 07 16.076439 19 59 48.91 -19 36 30.2 23PJ5 W84 C~8rAj 2023 08 13.31125 19 56 58.805 -19 45 14.60 22.9r 23PJ5 T09 C~8nlW 2023 08 13.44955 19 56 58.016 -19 45 17.02 23.0r 23PJ5 T09 C~8nlW 2023 09 13.053539 19 54 42.82 -19 52 43.4 23.0r 23PJ5 W84 C~8rAj 2023 09 14.03277 19 54 39.946 -19 52 53.89 23.1r 23PJ5 269 C~8nlW 2023 09 15.02888 19 54 37.116 -19 53 03.98 23.2r 23PJ5 269 C~8nlW 2023 10 05.022400 19 54 05.60 -19 55 27.2 23.9g 23PJ5 W84 C~8rAj 2023 10 06.03868 19 54 05.324 -19 55 31.05 23.0r 23PJ5 269 C~8nlW 2023 10 07.02957 19 54 05.191 -19 55 34.33 23.0r 23PJ5 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 0.13
2 0.0000 0.00 -0.06 0.00 -0.13
3 10.0070 0.00 -0.07 0.00 0.02
4 10.0072 0.00 0.01 0.00 -0.02
5 10.9844 0.00 0.05 0.00 0.01
6 14.9214 0.00 0.08 0.00 0.02
7 15.0878 0.00 0.06 0.00 0.03
8 15.1651 0.00 -0.19 0.00 -0.09
9 15.1655 0.00 -0.24 0.00 -0.10
10 15.2493 0.00 0.08 0.00 -0.09
11 15.2519 0.00 0.11 0.00 -0.04
12 15.2547 0.00 -0.08 0.00 0.30
13 15.3094 0.00 0.15 0.00 0.09
14 15.3122 0.00 0.04 0.00 -0.06
15 15.3149 0.00 -0.01 0.00 -0.07
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.
23PJ5 quality flag:3 Type: 2:1E 2:1E 2:1E axisobj 47.476 47.476 47.476 ecceobj 0.330 0.330 0.330 incobj 3.050 3.050 3.050 qmin 31.374 31.374 31.374 qmax 64.991 64.992 64.991 amean 47.797 47.797 47.797 amin 47.299 47.298 47.299 amax 48.438 48.437 48.439 emean 0.330 0.330 0.330 emin 0.317 0.317 0.317 emax 0.343 0.343 0.343 imean 2.337 2.337 2.337 imin 1.749 1.749 1.749 imax 2.731 2.731 2.731 excite_mean 0.332 0.332 0.332 fracstop 1.000 1.000 1.000 cjmean 3.007 3.007 3.007 libcent 0 289.8 289.8 289.9 libamp 0 16.0 16.0 16.0 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 174.1 174.1 174.2 kozaiamp 180.0 180.0 180.0