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
2011-04-24 10:19:18 C 15 52 21.540 +34 31 06.07 L F51
2011-04-24 10:33:57 C 15 52 24.375 +34 32 03.37 L F51
2011-04-24 11:03:27 C 15 52 30.035 +34 33 57.91 L F51
2011-04-25 07:14:24 C 15 56 58.45 +35 54 23.3 r G96
2011-04-25 07:15:11 C 15 56 58.59 +35 54 26.6 r G96
2011-04-25 07:15:57 C 15 56 58.77 +35 54 29.9 r G96
2011-04-25 07:16:40 C 15 56 58.95 +35 54 33.1 r G96
2011-04-25 07:19:36 C 15 56 59.56 +35 54 45.2 r G96
2011-04-25 07:20:42 C 15 56 59.82 +35 54 49.9 r G96
2011-04-25 21:36:58 C 16 00 29.66 +36 55 01.0 u J95
2011-04-25 21:54:11 C 16 00 33.96 +36 56 17.7 u J95
2011-04-25 21:57:48 C 16 00 34.86 +36 56 34.1 u J95
2011-04-26 08:44:00 C 16 03 26.268 +37 44 59.10 o F65
2011-04-26 08:44:59 C 16 03 26.574 +37 45 04.69 o F65
2011-04-26 08:46:01 C 16 03 26.823 +37 45 09.50 o F65
2011-04-26 08:47:04 C 16 03 27.08 +37 45 13.7 o F65
2011-04-26 08:48:00 C 16 03 27.355 +37 45 18.48 o F65
2011-04-26 08:48:57 C 16 03 27.577 +37 45 22.59 o F65
2011-04-26 08:49:55 C 16 03 27.811 +37 45 27.42 o F65
2011-04-26 08:50:50 C 16 03 28.100 +37 45 31.78 o F65
2011-04-26 08:51:48 C 16 03 28.324 +37 45 35.99 o F65
2011-04-26 08:59:49 C 16 03 27.14 +37 46 12.7 r 703
2011-04-26 09:10:09 C 16 03 29.62 +37 46 59.0 r 703
2011-04-26 09:20:47 C 16 03 32.50 +37 47 47.2 r 703
2011-04-26 09:32:55 C 16 03 35.64 +37 48 43.9 r 703
2011-04-28 00:32:31 C 16 15 46.96 +40 59 15.8 u J95
2011-04-28 00:37:32 C 16 15 48.67 +40 59 42.6 u J95
2011-04-28 00:43:13 C 16 15 50.60 +41 00 12.8 u J95
2011-04-29 07:16:47 C 16 28 04.40 +43 50 09.1 t G56
2011-04-29 07:29:17 C 16 28 09.81 +43 51 24.6 t G56
2011-04-29 07:41:34 C 16 28 15.13 +43 52 37.8 t G56
2011-04-29 09:02:58 C 16 28 47.33 +44 00 41.2 o H21
2011-04-29 09:07:10 C 16 28 49.14 +44 01 06.0 o H21
2011-04-29 09:10:54 C 16 28 50.75 +44 01 27.6 o H21
2011-04-29 09:15:09 C 16 28 52.60 +44 01 52.8 o H21
2011-05-01 23:25:20 C 17 06 14.76 +50 46 13.2 c A24
2011-05-01 23:26:05 C 17 06 15.38 +50 46 18.3 c A24
2011-05-01 23:26:50 C 17 06 15.95 +50 46 23.8 c A24
2011-05-02 00:34:47 C 17 07 08.05 +50 54 29.5 c A24
2011-05-04 08:42:50 C 18 07 09.01 +57 34 05.6 u H36
2011-05-04 09:13:14 C 18 07 50.73 +57 37 32.0 u H36
2011-05-04 09:17:18 C 18 07 54.98 +57 38 00.4 o H21
2011-05-04 09:28:28 C 18 08 10.39 +57 39 16.2 o H21
2011-05-04 09:30:55 C 18 08 13.79 +57 39 32.4 o H21
2011-05-04 09:33:47 C 18 08 18.95 +57 39 53.9 u H36
2011-05-07 01:45:20 C 20 11 06.91 +62 31 24.1 v 204
2011-05-07 02:11:54 C 20 12 08.31 +62 31 56.9 v 204
2024-10-05 14:05:44 C 04 28 50.941 -26 28 33.67 V F51
2024-10-05 14:10:19 C 04 28 49.559 -26 28 24.77 V F51
2024-10-08 14:01:00 C 04 09 13.107 -24 12 11.94 V F51