(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) 2458200.5
Semi major axis 5.205585 ± 0.000000 au
Eccentricity 0.036112895 ± 0.000000047
Inclination 32.135527408 ± 0.000005079 °
Longitude of ascending node 211.744134 ± 0.000009 °
Argument of perihelia 53.879680 ± 0.000155 °
Mean anomaly 280.292141 ± 0.000158 °
Orbital period 11.88 yr

Ephemeris & Observations

Ephemeris version NIMAv1
Observation file (documentation) omc_ast_NIMAv1.txt
bsp file 2363_Cebriones_nima_v1.bsp
Date of first observation 1953-08-11
Date of last observation 2019-01-24
Number of observations used in the fit 1809
Number of rejected observations 14
Number of DES observations 0
Number of MPC observations 1823
Number of unpublished observations 0
RMS of observations 0.527 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv1 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2018-01 0.020 0.015
2018-07 0.020 0.015
2019-01 0.024 0.015
2019-07 0.030 0.020
2020-01 0.030 0.018
2020-07 0.043 0.027
2021-01 0.036 0.020
2021-07 0.053 0.028
2022-01 0.039 0.018

Ephemeris comparison

residual plot

Difference between NIMAv1 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.