(2363) Cebriones
This object has a more recent orbit available here
Object
Object | (2363) Cebriones |
Diameter(1) | 97 km |
Dynamic class(1) | trojan |
Absolute magnitude | 8.97 |
G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
Epoch (Julian date) | 2457395.749638616 |
Semi major axis | 5.198844 ± 0.000000 au |
Eccentricity | 0.035364824 ± 0.000000025 |
Inclination | 32.134107273 ± 0.000001413 ° |
Longitude of ascending node | 211.754890 ± 0.000003 ° |
Argument of perihelia | 56.551533 ± 0.000078 ° |
Mean anomaly | 210.597500 ± 0.000075 ° |
Orbital period | 11.85 yr |
Ephemeris & Observations
Ephemeris version | NIMAv5 |
Observation file |
omc_ast_NIMAv5.txt |
bsp file | 2363_Cebriones_nima_v5.bsp |
Date of first observation | 1953-08-11 |
Date of last observation | 2023-07-04 |
Number of observations used in the fit | 3912 |
Number of rejected observations | 21 |
Number of DES observations | 0 |
Number of MPC observations | 3929 |
Number of unpublished observations | 4 |
RMS of observations | 0.385 arcsec |
Residuals

Residuals in right ascension and declination compared to NIMAv5 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2023-01 | 0.006 | 0.005 |
2023-07 | 0.012 | 0.006 |
2024-01 | 0.013 | 0.006 |
2024-07 | 0.020 | 0.006 |
2025-01 | 0.024 | 0.008 |
2025-07 | 0.027 | 0.008 |
2026-01 | 0.036 | 0.012 |
2026-07 | 0.032 | 0.010 |
2027-01 | 0.046 | 0.015 |
Ephemeris comparison

Difference between NIMAv5 and JPL69 in right ascension (weighted by cos δ) and in declination.
Gray area represents the 1-σ uncertainty of NIMA ephemeris. Green dots represent the DES observations.