(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 32.134107171 ± 0.000001423 °
Longitude of ascending node 211.754890 ± 0.000003 °
Argument of perihelia 56.551534 ± 0.000078 °
Mean anomaly 210.597499 ± 0.000075 °
Orbital period 11.85 yr

Ephemeris & Observations

Ephemeris version NIMAv4
Observation file (documentation) omc_ast_NIMAv4.txt
bsp file 2363_Cebriones_nima_v4.bsp
Date of first observation 1953-08-11
Date of last observation 2022-08-29
Number of observations used in the fit 3325
Number of rejected observations 19
Number of DES observations 0
Number of MPC observations 3340
Number of unpublished observations 4
RMS of observations 0.411 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv4 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2022-01 0.005 0.005
2022-07 0.007 0.006
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

Ephemeris comparison

residual plot

Difference between NIMAv4 and JPL63 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.