(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 | 3.90 |
G slop | 0.15 |
(1) Data from the johnston archive list.
Orbital elements
Epoch (Julian date) | 2458200.5 |
Semi major axis | 54.996850 ± 0.001123 au |
Eccentricity | 0.290828619 ± 0.000010522 |
Inclination | 35.111422914 ± 0.000243396 ° |
Longitude of ascending node | 23.904379 ± 0.000087 ° |
Argument of perihelia | 87.372057 ± 0.002769 ° |
Mean anomaly | 323.501153 ± 0.002137 ° |
Orbital period | 407.86 yr |
Ephemeris & Observations
Ephemeris version | NIMAv12 |
Observation file |
omc_ast_NIMAv12.txt |
bsp file | 84522_2002TC302_nima_v12.bsp |
Date of first observation | 2000-08-05 |
Date of last observation | 2018-09-08 |
Number of observations used in the fit | 815 |
Number of rejected observations | 13 |
Number of DES observations | 0 |
Number of MPC observations | 123 |
Number of unpublished observations | 705 |
RMS of observations | 0.154 arcsec |
Residuals
![residual plot](data/nima/2002TC302/omc_NIMAv12.png)
Residuals in right ascension and declination compared to NIMAv12 ephemeris.
Colours indicate the estimated precision in arcsec used as weights in the fitting process.
Orbit quality
date | σα (arcsec) | σδ (arcsec) |
2019-01 | 0.013 | 0.015 |
2019-07 | 0.058 | 0.025 |
2020-01 | 0.024 | 0.027 |
2020-07 | 0.071 | 0.038 |
2021-01 | 0.038 | 0.042 |
2021-07 | 0.087 | 0.053 |
2022-01 | 0.054 | 0.059 |
2022-07 | 0.105 | 0.069 |
2023-01 | 0.072 | 0.078 |
Ephemeris comparison
![residual plot](data/nima/2002TC302/diff_NIMAv12_JPL18.png)
Difference between NIMAv12 and JPL18 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.