2021 TH1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2341988006 ± 2.77e-04
Semi-major axis (a)1.1411292791 AU ± 1.71e-04
Inclination (i)1.42608656° ± 2.10e-03
Long. of Asc. Node (Ω)22.67500018° ± 1.99e-02
Arg. of Perihelion (ω)267.81157497° ± 3.62e-02
Mean Anomaly (M)194.84394946° ± 2.92e-01
Mean Motion (n)0.8085558120°/day ± 1.82e-04
Perihelion dist (q)0.87387817 AU ± 3.42e-04
Aphelion dist (Q)1.40838039 AU ± 3.80e-04
Orbital Period1.21899598 yr ± 2.74e-04
Physical Parameters
H (abs. magnitude)28.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.143″
Uncertainty3
Orbit TypeApollo
MOID0.006623 AU
Observations Used10
Oppositions1
Arc Total2021-2021
First Observation Used2021-10-02
Last Observation Used2021-10-03
Observations (10)
Date Type RA Dec Mag Band Observatory
2021-10-02 08:32:53 C 00 41 36.304 -08 14 06.04 U F52
2021-10-02 08:49:20 C 00 41 34.165 -08 12 29.14 U F52
2021-10-02 09:05:44 C 00 41 32.015 -08 10 52.47 U F52
2021-10-02 09:22:16 C 00 41 29.814 -08 09 15.27 U F52
2021-10-02 12:14:07 C 00 41 07.139 -07 52 28.59 V F51
2021-10-02 12:15:03 C 00 41 07.017 -07 52 23.02 V F51
2021-10-03 08:38:53 C 00 40 23.014 -06 06 34.39 U F52
2021-10-03 08:53:36 C 00 40 21.398 -06 05 26.61 U F52
2021-10-03 09:08:24 C 00 40 19.748 -06 04 17.61 U F52
2021-10-03 09:23:09 C 00 40 18.108 -06 03 09.85 U F52