(84522) 2002TC302


This object has a more recent orbit available here

Object

Object (84522) 2002TC302
Diameter(1) 584 km
Dynamic class(1) res2:5
Absolute magnitude 3.94
G slop 0.15
(1) Data from the johnston archive list.

Orbital elements

Epoch (Julian date) 2459800.5
Semi major axis 55.541592 ± 0.000907 au
Eccentricity 0.294189206 ± 0.000008882
Inclination 34.958463075 ± 0.000018130 °
Longitude of ascending node 23.768002 ± 0.000017 °
Argument of perihelia 85.880993 ± 0.001295 °
Mean anomaly 328.659552 ± 0.001399 °
Orbital period 413.94 yr

Ephemeris & Observations

Ephemeris version NIMAv17
Observation file (documentation) omc_ast_NIMAv17.txt
bsp file 84522_2002TC302_nima_v17.bsp
Date of first observation 2000-08-05
Date of last observation 2021-11-28
Number of observations used in the fit 1788
Number of rejected observations 3
Number of DES observations 0
Number of MPC observations 491
Number of unpublished observations 1300
RMS of observations 0.131 arcsec

Residuals

residual plot

Residuals in right ascension and declination compared to NIMAv17 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.

Orbit quality

date σα (arcsec) σδ (arcsec)
2022-01 0.009 0.007
2022-07 0.011 0.007
2023-01 0.012 0.009
2023-07 0.010 0.010
2024-01 0.016 0.013
2024-07 0.012 0.013
2025-01 0.020 0.017
2025-07 0.015 0.018
2026-01 0.024 0.021

Ephemeris comparison

residual plot

Difference between NIMAv17 and JPL25 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.