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: 23FH57
# Created Tue Apr 1 01:11:32 2025
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 1.93y
# First observation: 2023/03/21
# Last observation: 2025/02/23
Preliminary a, adot, b, bdot, g, gdot:
0.000129 0.021254 0.000057 -0.004863 0.023648 0.000000
# Chi-squared of fit: 7.98 DOF: 18 RMS: 0.14
# Min/Max residuals: -0.30 0.36
# Exact a, adot, b, bdot, g, gdot:
1.399812E-05 2.131085E-02 -3.276058E-06 -4.832478E-03 2.342978E-02 -1.867695E-04
# Covariance matrix:
6.8692E-13 1.9421E-14 7.9076E-14 -1.4853E-13 1.3109E-12 1.2956E-11
1.9421E-14 2.0393E-12 1.7378E-13 -5.1530E-13 2.2187E-12 5.0895E-11
7.9076E-14 1.7378E-13 3.3232E-13 -2.6620E-13 3.8247E-13 5.9758E-12
-1.4853E-13 -5.1530E-13 -2.6620E-13 3.9311E-13 -8.8145E-13 -1.6086E-11
1.3109E-12 2.2187E-12 3.8247E-13 -8.8145E-13 5.7688E-12 8.2021E-11
1.2956E-11 5.0895E-11 5.9758E-12 -1.6086E-11 8.2021E-11 1.5562E-09
# lat0 lon0 xBary yBary zBary JD0
4.755335 150.340483 -0.498274 0.072130 -0.869715 2460024.743701
# Heliocentric elements and errors
Epoch: 2460020.5000 = 2023/03/17
Mean Anomaly: 173.14432 +/- 2.137
Argument of Peri: 346.15605 +/- 2.140
Long of Asc Node: 350.56255 +/- 0.002
Inclination: 13.67842 +/- 0.001
Eccentricity: 0.04551996 +/- 0.0004
Semi-Major Axis: 41.66174519 +/- 0.0136
Time of Perihelion: 2412780.4482 +/- 582.5
Perihelion: 39.76530414 +/- 0.0213
Aphelion: 43.55818625 +/- 0.0221
Period (y) 268.9146 +/- 0.13
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -37.95737651 +/- 0.0038
Ecliptic Y 21.04658663 +/- 0.0022
Ecliptic Z 3.53814061 +/- 0.0004
Ecliptic XDOT -0.00125598 +/- 0.0000
Ecliptic YDOT -0.00214287 +/- 0.0000
Ecliptic ZDOT -0.00056458 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 43.54583424 +/- 0.0035
Geocenter to KBO 42.68072009 +/- 0.0044
# Hcoef: 6.80
The following table shows the complete astrometric record for 23FH57. 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 (23FH57) followed by the observatory code and reference code for the source of the astrometry.
2023 03 21.24290 10 16 37.240 +15 47 47.21 23.1r 23FH57 T09 C~83ID 2023 03 21.43888 10 16 36.412 +15 47 50.36 23.0r 23FH57 T09 C~83ID 2023 05 23.16201 10 14 33.359 +15 50 00.08 23FH57 G37 C~83ID 2023 05 23.22775 10 14 33.387 +15 49 59.18 23FH57 G37 C~83ID 2023 05 24.15405 10 14 34.026 +15 49 46.73 23FH57 G37 C~83ID 2024 04 12.06430 10 19 35.447 +15 10 35.21 23.0r 23FH57 304 C~83ID 2024 04 12.15165 10 19 35.180 +15 10 35.80 23.1r 23FH57 304 C~83ID 2024 05 03.99504 10 18 51.937 +15 11 25.99 23.3r 23FH57 304 C~83ID 2024 05 04.10462 10 18 51.815 +15 11 26.06 23.3r 23FH57 304 C~83ID 2025 02 23.294090 10 27 06.909 +14 14 31.06 23.1G 23FH57 G37 C~8inM 2025 02 23.341200 10 27 06.643 +14 14 32.36 23FH57 G37 C~8inM 2025 02 23.388380 10 27 06.420 +14 14 33.07 23FH57 G37 C~8inM
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 0.08 0.00 0.00
2 0.0005 -12.28 -0.01 -1.35 -0.09
3 0.1723 -1716.94 -0.00 -516.16 0.02
4 0.1724 -1716.24 -0.13 -516.86 -0.05
5 0.1750 -1703.19 0.05 -525.19 0.05
6 1.0618 3208.19 0.02 -1152.15 0.08
7 1.0620 3204.37 -0.14 -1153.00 -0.06
8 1.1218 2602.54 0.11 -1332.86 -0.15
9 1.1221 2600.87 0.02 -1333.44 0.27
10 1.9303 10544.42 0.36 -1883.78 0.13
11 1.9305 10540.34 -0.27 -1884.00 0.08
12 1.9306 10537.05 -0.09 -1884.54 -0.30
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.
23FH57 quality flag:3 Type: CLASSICAL CLASSICAL CLASSICAL axisobj 41.896 41.928 41.865 ecceobj 0.042 0.041 0.043 incobj 13.656 13.655 13.658 qmin 39.272 39.389 39.183 qmax 44.661 44.731 44.645 amean 41.873 41.905 41.841 amin 41.559 41.588 41.521 amax 42.201 42.231 42.177 emean 0.044 0.043 0.044 emin 0.029 0.029 0.030 emax 0.059 0.059 0.060 imean 13.897 13.907 13.886 imin 13.146 13.164 13.127 imax 14.587 14.601 14.595 excite_mean 0.244 0.244 0.244 fracstop 1.000 1.000 1.000 cjmean 3.006 3.006 3.006 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 180.5 180.1 180.9 kozaiamp 180.0 179.9 180.0