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: 24RU155
# Created Tue Jan 21 02:11:45 2025
# Orbit generated from Bernstein formalism
# Fitting 20 observations of 20
# Arc: 112.76d
# First observation: 2024/09/09
# Last observation: 2024/12/31
Preliminary a, adot, b, bdot, g, gdot:
-0.000095 0.460228 -0.000380 0.037404 0.163726 0.000000
# Chi-squared of fit: 13.87 DOF: 34 RMS: 0.15
# Min/Max residuals: -0.30 0.36
# Exact a, adot, b, bdot, g, gdot:
3.752716E-05 3.373505E-01 2.470164E-06 3.014945E-02 1.423467E-01 -9.776901E-02
# Covariance matrix:
3.6500E-13 -3.0616E-12 -9.6048E-16 9.0494E-14 8.6899E-13 6.4809E-11
-3.0616E-12 1.7557E-08 -6.2343E-11 9.3506E-10 2.4466E-09 -8.2281E-08
-9.6048E-16 -6.2343E-11 3.4889E-13 -4.0226E-12 -8.7390E-12 2.9019E-10
9.0494E-14 9.3506E-10 -4.0226E-12 5.8980E-11 1.3146E-10 -4.3354E-09
8.6899E-13 2.4466E-09 -8.7390E-12 1.3146E-10 3.4715E-10 -1.1200E-08
6.4809E-11 -8.2281E-08 2.9019E-10 -4.3354E-09 -1.1200E-08 3.9793E-07
# lat0 lon0 xBary yBary zBary JD0
5.249945 10.986214 0.414511 0.083239 -0.908293 2460562.915141
# Heliocentric elements and errors
Epoch: 2460560.5000 = 2024/09/07
Mean Anomaly: 324.95442 +/- 0.118
Argument of Peri: 116.21686 +/- 0.053
Long of Asc Node: 326.69743 +/- 0.008
Inclination: 7.00405 +/- 0.001
Eccentricity: 0.39755673 +/- 0.0021
Semi-Major Axis: 10.43582452 +/- 0.0217
Time of Perihelion: 2461759.2245 +/- 1.5
Perihelion: 6.28699220 +/- 0.0253
Aphelion: 14.58465683 +/- 0.0372
Period (y) 33.7131 +/- 0.10
# Ecliptic coordinates at JD0 (AU and AU/d)
Ecliptic X 7.84826103 +/- 0.0009
Ecliptic Y 1.10476509 +/- 0.0002
Ecliptic Z 0.64284726 +/- 0.0001
Ecliptic XDOT -0.00313343 +/- 0.0000
Ecliptic YDOT 0.00600746 +/- 0.0000
Ecliptic ZDOT 0.00040549 +/- 0.0000
# Distances at JD0 (AU)
Heliocenter to KBO 7.95166395 +/- 0.0009
Geocenter to KBO 7.02510376 +/- 0.0009
# Hcoef: 13.36
The following table shows the complete astrometric record for 24RU155. 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 (24RU155) followed by the observatory code and reference code for the source of the astrometry.
2024 09 09.414340 00 32 04.557 +09 10 27.34 22.3w 24RU155 F52 C~8Mqc 2024 09 09.426927 00 32 04.346 +09 10 26.31 22.2w 24RU155 F52 C~8Mqc 2024 09 09.439514 00 32 04.111 +09 10 25.28 22.0w 24RU155 F52 C~8Mqc 2024 09 09.452156 00 32 03.864 +09 10 24.17 22.4w 24RU155 F52 C~8Mqc 2024 09 28.341715 00 25 58.734 +08 41 09.03 22.7w 24RU155 F51 C~8Mqc 2024 09 28.354250 00 25 58.491 +08 41 07.66 22.1w 24RU155 F51 C~8Mqc 2024 09 28.366192 00 25 58.240 +08 41 06.44 22.1w 24RU155 F51 C~8Mqc 2024 09 28.379956 00 25 57.956 +08 41 04.99 22.1w 24RU155 F51 C~8Mqc 2024 10 01.13970 00 25 01.802 +08 36 03.73 22.2G 24RU155 309 C~8Mqc 2024 10 01.14093 00 25 01.739 +08 36 03.72 22.1G 24RU155 309 C~8Mqc 2024 10 01.14216 00 25 01.702 +08 36 03.61 22.1G 24RU155 309 C~8Mqc 2024 10 01.14341 00 25 01.722 +08 36 03.34 21.9G 24RU155 309 C~8Mqc 2024 10 01.14465 00 25 01.656 +08 36 03.41 22.1G 24RU155 309 C~8Mqc 2024 10 01.14588 00 25 01.645 +08 36 03.16 22.1G 24RU155 309 C~8Mqc 2024 10 01.14710 00 25 01.608 +08 36 03.12 21.9G 24RU155 309 C~8Mqc 2024 10 01.14955 00 25 01.552 +08 36 02.85 22.1G 24RU155 309 C~8Mqc 2024 10 01.15078 00 25 01.547 +08 36 02.78 22.2G 24RU155 309 C~8Mqc 2024 12 31.07679 00 14 00.608 +07 05 12.05 22.4G 24RU155 G37 2024 12 31.12800 00 14 01.236 +07 05 14.76 24RU155 G37 2024 12 31.17901 00 14 01.888 +07 05 17.66 24RU155 G37
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 0.18
2 0.0000 -3.28 0.19 0.29 -0.01
3 0.0001 -6.88 0.07 0.72 -0.06
4 0.0001 -10.68 -0.23 1.15 -0.12
5 0.0518 -5674.54 -0.20 541.24 0.03
6 0.0519 -5678.40 0.03 541.42 -0.10
7 0.0519 -5682.30 0.01 541.79 -0.02
8 0.0519 -5686.74 0.06 542.14 -0.01
9 0.0595 -6571.28 0.36 598.83 -0.30
10 0.0595 -6572.14 -0.10 599.19 0.04
11 0.0595 -6572.69 -0.25 599.31 0.13
12 0.0595 -6572.52 0.33 598.95 -0.26
13 0.0595 -6573.39 -0.14 599.40 0.16
14 0.0595 -6573.64 0.02 599.24 -0.03
15 0.0595 -6574.16 -0.10 599.42 0.13
16 0.0595 -6575.03 -0.17 599.51 0.16
17 0.0595 -6575.13 0.14 599.47 0.10
18 0.3085 -17801.68 0.04 -433.84 0.05
19 0.3086 -17791.96 -0.13 -435.16 -0.02
20 0.3087 -17781.84 0.09 -436.45 -0.03
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.
24RU155 quality flag:1 Type: CENTAURR CENTAURR CENTAURR axisobj 10.384 11.074 9.734 ecceobj 0.395 0.391 0.401 incobj 7.011 7.016 7.006 qmin 6.282 6.745 5.828 qmax 21.897 18.441 16.191 amean 13.106 12.217 10.295 amin 10.384 11.074 8.913 amax 14.766 12.741 11.367 emean 0.445 0.429 0.387 emin 0.395 0.391 0.318 emax 0.485 0.456 0.436 imean 9.175 6.827 6.347 imin 6.291 6.352 5.445 imax 11.958 8.304 8.287 excite_mean 0.474 0.446 0.403 fracstop 0.003 0.001 0.001 cjmean 3.482 3.610 4.013 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 222.9 212.4 184.0 kozaiamp 173.8 82.8 151.6