2011 HH1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6014129143 ± 6.31e-08
Semi-major axis (a)1.9049447756 AU ± 9.53e-09
Inclination (i)11.20278119° ± 5.40e-05
Long. of Asc. Node (Ω)71.62107165° ± 2.09e-04
Arg. of Perihelion (ω)223.61962371° ± 1.91e-04
Mean Anomaly (M)176.19918716° ± 1.71e-05
Mean Motion (n)0.3748769097°/day ± 2.81e-09
Perihelion dist (q)0.75928639 AU ± 1.20e-07
Aphelion dist (Q)3.05060316 AU ± 1.21e-07
Orbital Period2.62919977 yr ± 1.97e-08
Physical Parameters
H (abs. magnitude)21.72
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.286″
Uncertainty0
Orbit TypeApollo
MOID0.080776 AU
Observations Used58
Oppositions8
Arc Total2011-2024
First Observation Used2011-04-24
Last Observation Used2024-11-02
Observations (61)
Date Type RA Dec Mag Band Observatory
2024-10-08 14:05:11 C 04 09 11.954 -24 12 03.63 V F51
2024-10-09 13:30:29 C 04 03 12.456 -23 27 30.28 X F51
2024-10-09 14:03:39 C 04 03 03.735 -23 26 26.85 X F51
2024-10-09 14:19:49 C 04 02 59.507 -23 25 55.87 X F51
2024-10-22 10:52:01 C 03 00 31.990 -14 14 02.50 X F52
2024-10-22 11:09:22 C 03 00 29.125 -14 13 34.58 X F52
2024-10-22 11:26:44 C 03 00 26.270 -14 13 06.68 X F52
2024-11-02 07:15:08 C 02 27 32.684 -07 58 44.76 V G96
2024-11-02 07:22:37 C 02 27 31.849 -07 58 34.97 V G96
2024-11-02 07:30:05 C 02 27 31.129 -07 58 26.18 V G96
2024-11-02 07:37:34 C 02 27 30.424 -07 58 17.29 V G96