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: 24XC48
# Created Wed May 21 01:11:45 2025
# Orbit generated from Bernstein formalism
# Fitting 12 observations of 12
# Arc: 50.76d
# First observation: 2024/12/01
# Last observation: 2025/01/21
Preliminary a, adot, b, bdot, g, gdot:
0.000000 0.137635 0.000000 -0.063503 0.076759 0.000000
# Chi-squared of fit: 2.15 DOF: 18 RMS: 0.07
# Min/Max residuals: -0.12 0.20
# Exact a, adot, b, bdot, g, gdot:
2.844318E-05 1.370247E-01 -1.305338E-05 -6.345822E-02 7.661527E-02 -5.162641E-03
# Covariance matrix:
1.9568E-12 7.9435E-09 -3.7592E-13 -1.3437E-10 1.4037E-09 1.5454E-08
7.9435E-09 3.7259E-05 -1.7908E-09 -5.3524E-07 6.5011E-06 6.1738E-05
-3.7592E-13 -1.7908E-09 2.7166E-13 2.2830E-11 -3.1114E-10 -2.7920E-09
-1.3437E-10 -5.3524E-07 2.2830E-11 1.2996E-08 -9.7926E-08 -1.4840E-06
1.4037E-09 6.5011E-06 -3.1114E-10 -9.7926E-08 1.1382E-06 1.1285E-05
1.5454E-08 6.1738E-05 -2.7920E-09 -1.4840E-06 1.1285E-05 1.6985E-04
# lat0 lon0 xBary yBary zBary JD0
8.877924 95.485204 0.425712 0.136012 -0.871593 2460646.049423
# Heliocentric elements and errors
Epoch: 2460640.5000 = 2024/11/26
Mean Anomaly: 354.95867 +/- 7.761
Argument of Peri: 172.62364 +/- 19.053
Long of Asc Node: 291.20013 +/- 0.744
Inclination: 25.89682 +/- 0.976
Eccentricity: 0.37971131 +/- 0.0333
Semi-Major Axis: 22.33188029 +/- 1.1488
Time of Perihelion: 2461180.2948 +/- 830.0
Perihelion: 13.85221278 +/- 1.0304
Aphelion: 30.81154780 +/- 1.7511
Period (y) 105.5349 +/- 8.14
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X -0.88768329 +/- 0.0172
Ecliptic Y 13.76038372 +/- 0.1788
Ecliptic Z 2.01412602 +/- 0.0281
Ecliptic XDOT -0.00489721 +/- 0.0002
Ecliptic YDOT -0.00029709 +/- 0.0004
Ecliptic ZDOT -0.00226887 +/- 0.0001
# Distances at JD0 (AU)
Heliocenter to KBO 13.93530931 +/- 0.1766
Geocenter to KBO 13.05222909 +/- 0.1818
# Hcoef: 11.08
The following table shows the complete astrometric record for 24XC48. 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 (24XC48) followed by the observatory code and reference code for the source of the astrometry.
2024 12 01.548622 06 25 37.870 +32 11 43.03 22.3G 24XC48 F52 C~8rAy 2024 12 01.556303 06 25 37.766 +32 11 42.91 22.5G 24XC48 F52 C~8rAy 2024 12 01.563967 06 25 37.662 +32 11 42.88 22.4G 24XC48 F52 C~8rAy 2024 12 01.571587 06 25 37.564 +32 11 42.99 22.6G 24XC48 F52 C~8rAy 2024 12 01.639722 06 25 36.605 +32 11 41.99 22.8G 24XC48 F52 C~8rAy 2024 12 01.640352 06 25 36.603 +32 11 41.93 22.7G 24XC48 F52 C~8rAy 2024 12 02.54471 06 25 24.271 +32 11 32.92 21.8r 24XC48 T09 C~8rAy 2024 12 02.64326 06 25 22.900 +32 11 31.79 21.9r 24XC48 T09 C~8rAy 2025 01 21.288074 06 12 57.033 +31 46 18.15 22.5G 24XC48 F52 C~8rAy 2025 01 21.295861 06 12 56.920 +31 46 18.01 22.3G 24XC48 F52 C~8rAy 2025 01 21.303702 06 12 56.818 +31 46 17.54 22.0G 24XC48 F52 C~8rAy 2025 01 21.311448 06 12 56.721 +31 46 17.04 22.4G 24XC48 F52 C~8rAy
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 -0.03 0.00 -0.01
2 0.0000 -1.31 -0.00 -0.18 -0.05
3 0.0000 -2.63 0.02 -0.27 0.00
4 0.0001 -3.88 0.11 -0.21 0.20
5 0.0002 -15.99 -0.10 -1.76 -0.05
6 0.0003 -16.02 -0.01 -1.82 -0.10
7 0.0027 -172.00 -0.06 -17.81 -0.01
8 0.0030 -189.33 0.06 -19.71 0.02
9 0.1389 -9636.45 0.04 -1818.27 -0.12
10 0.1389 -9637.90 -0.07 -1818.43 0.13
11 0.1390 -9639.19 -0.03 -1818.92 0.05
12 0.1390 -9640.42 0.06 -1819.44 -0.06
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.
24XC48 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