2021 HU1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5229756885 ± 5.18e-04
Semi-major axis (a)2.0951119493 AU ± 2.29e-03
Inclination (i)4.11093133° ± 3.53e-03
Long. of Asc. Node (Ω)202.54887548° ± 1.11e-03
Arg. of Perihelion (ω)347.52850812° ± 3.34e-03
Mean Anomaly (M)189.14621504° ± 9.46e-01
Mean Motion (n)0.3250135186°/day ± 5.34e-04
Perihelion dist (q)0.99941934 AU ± 1.54e-03
Aphelion dist (Q)3.19080456 AU ± 3.66e-03
Orbital Period3.03257011 yr ± 4.98e-03
Physical Parameters
H (abs. magnitude)26.51
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.283″
Uncertainty3
Orbit TypeApollo
MOID0.003874 AU
Observations Used25
Oppositions1
Arc Total2021-2021
First Observation Used2021-04-18
Last Observation Used2021-04-24
Observations (26)
Date Type RA Dec Mag Band Observatory
2021-04-18 09:55:37 C 15 00 08.825 +05 45 28.98 V F52
2021-04-18 10:10:37 C 15 00 29.862 +05 44 25.33 V F52
2021-04-18 10:40:28 C 15 01 11.313 +05 42 18.72 V F52
2021-04-19 10:09:47 C 15 31 29.557 +04 12 26.59 U F52
2021-04-19 10:39:28 C 15 31 59.281 +04 10 48.00 U F52
2021-04-19 10:54:26 C 15 32 14.093 +04 09 58.37 U F52
2021-04-19 13:00:39 C 15 34 16.751 +04 03 01.14 U F52
2021-04-19 13:33:58 C 15 34 48.663 +04 01 11.46 U F52
2021-04-19 13:50:40 C 15 35 04.614 +04 00 16.59 U F52
2021-04-20 23:35:32 C 16 04 12.69 +02 25 57.6 V 033
2021-04-20 23:37:11 C 16 04 13.73 +02 25 53.6 V 033
2021-04-20 23:38:51 C 16 04 14.80 +02 25 50.2 V 033
2021-04-21 08:58:56 C 16 10 20.83 +02 06 53.5 V I52
2021-04-21 09:00:21 C 16 10 21.57 +02 06 50.4 V I52
2021-04-21 09:01:47 C 16 10 22.41 +02 06 47.4 V I52
2021-04-21 09:03:12 C 16 10 23.17 +02 06 45.0 V I52
2021-04-23 02:04:23 C 16 31 07.17 +00 55 27.9 V 033
2021-04-23 02:07:13 C 16 31 08.21 +00 55 23.7 V 033
2021-04-23 02:10:02 C 16 31 09.23 +00 55 19.7 V 033
2021-04-23 09:02:38 C 16 33 56.70 +00 46 48.0 V I52
2021-04-23 09:07:02 C 16 33 58.19 +00 46 42.1 V I52
2021-04-23 23:24:00 C 16 39 08.50 +00 27 46.8 V 033
2021-04-23 23:27:19 C 16 39 09.55 +00 27 42.3 V 033
2021-04-24 11:24:54 C 16 42 48.96 +00 14 55.4 V I52
2021-04-24 11:27:56 C 16 42 49.39 +00 14 52.9 V I52
2021-04-24 11:30:58 C 16 42 50.45 +00 14 48.6 V I52