(2363) Cebriones


Object

Object (2363) Cebriones
Diameter(1) 97 km
Dynamic class(1) trojan
Absolute magnitude 9.11
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2458600.5
Semi major axis 5.213237 ± 0.000000 au
Eccentricity 0.037374409 ± 0.000000021
Inclination 32.119967091 ± 0.000000884 °
Longitude of ascending node 211.748950 ± 0.000003 °
Argument of perihelia 52.404942 ± 0.000028 °
Mean anomaly 315.005032 ± 0.000027 °
Orbital period 11.90 yr

Ephemeris & Observations

Ephemeris version NIMAv3
Observation file (documentation) omc_ast_NIMAv3.txt
bsp file 2363_Cebriones_nima_v3.bsp
Date of first observation 1953-08-11
Date of last observation 2020-11-01
Number of observations used in the fit 2955
Number of rejected observations 18
Number of DES observations 0
Number of MPC observations 2784
Number of unpublished observations 2
RMS of observations 0.083 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv3 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2021-01 0.005 0.002
2021-07 0.012 0.005
2022-01 0.012 0.003
2022-07 0.021 0.005
2023-01 0.018 0.004
2023-07 0.025 0.006
2024-01 0.024 0.005
2024-07 0.026 0.008
2025-01 0.029 0.008

Ephemeris comparison

residual plot

Difference between NIMAv3 and JPL56 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.

Previous NIMA versions