(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 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 ± 0.000001 au
Eccentricity 0.037374363 ± 0.000000073
Inclination 32.119969783 ± 0.000007483 °
Longitude of ascending node 211.748942 ± 0.000010 °
Argument of perihelia 52.404752 ± 0.000197 °
Mean anomaly 315.005224 ± 0.000196 °
Orbital period 11.90 yr

Ephemeris & Observations

Ephemeris version NIMAv2
Observation file (documentation) omc_ast_NIMAv2.txt
bsp file 2363_Cebriones_nima_v2.bsp
Date of first observation 1953-08-11
Date of last observation 2019-08-05
Number of observations used in the fit 2174
Number of rejected observations 3
Number of DES observations 0
Number of MPC observations 2177
Number of unpublished observations 0
RMS of observations 0.501 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv2 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2019-01 0.023 0.018
2019-07 0.028 0.023
2020-01 0.029 0.021
2020-07 0.042 0.032
2021-01 0.036 0.025
2021-07 0.057 0.037
2022-01 0.044 0.026
2022-07 0.062 0.032
2023-01 0.050 0.023

Ephemeris comparison

residual plot

Difference between NIMAv2 and JPL41 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.