2021 TD1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3535757603 ± 2.17e-05
Semi-major axis (a)1.2171768547 AU ± 2.41e-05
Inclination (i)2.35443624° ± 1.45e-04
Long. of Asc. Node (Ω)203.23137225° ± 3.83e-04
Arg. of Perihelion (ω)78.22280620° ± 3.22e-04
Mean Anomaly (M)77.41040555° ± 3.76e-02
Mean Motion (n)0.7339758119°/day ± 2.18e-05
Perihelion dist (q)0.78681262 AU ± 3.07e-05
Aphelion dist (Q)1.64754109 AU ± 4.20e-05
Orbital Period1.34285935 yr ± 3.99e-05
Physical Parameters
H (abs. magnitude)26.01
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.240″
Uncertainty2
Orbit TypeApollo
MOID0.001157 AU
Observations Used57
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-03
Last Observation Used2021-11-09
Observations (58)
Date Type RA Dec Mag Band Observatory
2021-10-16 10:08:53 C 00 31 29.41 +04 09 16.6 o 291
2021-10-16 10:28:18 C 00 31 29.46 +04 09 02.5 o 291
2021-10-17 05:38:43 C 00 31 46.10 +03 55 48.6 V 695
2021-10-17 05:55:35 C 00 31 46.04 +03 55 37.0 V 695
2021-10-17 06:12:28 C 00 31 46.02 +03 55 25.8 V 695
2021-11-09 04:45:49 C 00 42 35.002 +02 01 55.81 V G37
2021-11-09 04:56:34 C 00 42 35.236 +02 01 56.50 V G37
2021-11-09 05:07:20 C 00 42 35.492 +02 01 57.07 V G37