(84522) 2002TC302


Object

Object (84522) 2002TC302
Diameter(1) 500 km
Dynamic class(1) res2:5
Absolute magnitude 3.95
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2460800.5
Semi major axis 55.864904 ± 0.000918 au
Eccentricity 0.299433723 ± 0.000008889
Inclination 34.990088417 ± 0.000018132 °
Longitude of ascending node 23.804275 ± 0.000017 °
Argument of perihelia 85.918379 ± 0.001272 °
Mean anomaly 331.355344 ± 0.001318 °
Orbital period 417.56 yr

Ephemeris & Observations

Ephemeris version NIMAv20
Observation file (documentation) omc_ast_NIMAv20.txt
bsp file 84522_2002TC302_nima_v20.bsp
Date of first observation 2000-08-05
Date of last observation 2025-01-04
Number of observations used in the fit 1834
Number of rejected observations 5
Number of DES observations 0
Number of MPC observations 537
Number of unpublished observations 1302
RMS of observations 0.133 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv20 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2024-01 0.015 0.013
2024-07 0.012 0.014
2025-01 0.020 0.017
2025-07 0.015 0.018
2026-01 0.024 0.021
2026-07 0.020 0.022
2027-01 0.029 0.026
2027-07 0.026 0.027
2028-01 0.035 0.031

Ephemeris comparison

residual plot

Difference between NIMAv20 and JPL32 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