2009 HS2

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.8236373018 ± 1.68e-07
Semi-major axis (a)2.5110542404 AU ± 2.12e-08
Inclination (i)15.63009098° ± 3.07e-05
Long. of Asc. Node (Ω)29.19561763° ± 1.30e-05
Arg. of Perihelion (ω)56.61546071° ± 3.71e-05
Mean Anomaly (M)71.87152786° ± 3.61e-06
Mean Motion (n)0.2477012142°/day ± 3.14e-09
Perihelion dist (q)0.44285630 AU ± 4.22e-07
Aphelion dist (Q)4.57925218 AU ± 4.23e-07
Orbital Period3.97909347 yr ± 5.04e-08
Physical Parameters
H (abs. magnitude)21.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.271″
Uncertainty0
Orbit TypeApollo
MOID0.089860 AU
Observations Used121
Oppositions12
Arc Total2009-2025
First Observation Used2009-04-18
Last Observation Used2025-04-21
Observations (126)
Date Type RA Dec Mag Band Observatory
2009-04-18 07:42:35 C 13 33 39.67 -05 27 55.4 r G96
2009-04-18 07:56:34 C 13 33 37.44 -05 28 01.2 r G96
2009-04-18 08:10:37 C 13 33 35.28 -05 28 07.2 r G96
2009-04-18 09:11:21 C 13 33 25.88 -05 28 32.8 r G96
2009-04-18 09:12:30 C 13 33 25.70 -05 28 33.3 r G96
2009-04-18 09:13:40 C 13 33 25.52 -05 28 33.4 r G96
2009-04-18 09:14:49 C 13 33 25.38 -05 28 34.1 r G96
2009-04-18 09:24:48 C 13 33 23.76 -05 28 38.3 r G96
2009-04-18 09:25:49 C 13 33 23.65 -05 28 38.7 r G96
2009-04-18 09:26:47 C 13 33 23.50 -05 28 39.2 r G96
2009-04-18 09:27:46 C 13 33 23.36 -05 28 39.7 r G96
2009-04-18 10:14:12 C 13 33 16.20 -05 28 58.6 r G96
2009-04-18 10:15:02 C 13 33 16.09 -05 28 59.3 r G96
2009-04-18 10:15:52 C 13 33 15.98 -05 28 59.2 r G96
2009-04-18 10:16:40 C 13 33 15.84 -05 28 59.6 r G96
2009-04-19 07:02:43 C 13 30 14.97 -05 37 29.6 r G96
2009-04-19 07:12:50 C 13 30 13.50 -05 37 34.0 r G96
2009-04-19 07:33:07 C 13 30 10.44 -05 37 41.7 r G96
2009-04-19 07:47:03 C 13 30 08.49 -05 37 47.0 o 291
2009-04-19 07:52:40 C 13 30 07.59 -05 37 49.2 o 291
2009-04-19 07:58:16 C 13 30 06.81 -05 37 51.3 o 291
2009-04-20 05:40:10 C 13 27 08.40 -05 46 17.4 r G96
2009-04-20 05:45:52 C 13 27 07.67 -05 46 19.3 r G96
2009-04-20 06:03:42 C 13 27 05.11 -05 46 26.6 v H01
2009-04-20 06:05:35 C 13 27 04.86 -05 46 27.4 v H01
2009-04-20 06:11:50 C 13 27 03.99 -05 46 29.6 v H01
2009-04-20 06:20:16 C 13 27 02.83 -05 46 32.9 v H01
2013-04-17 07:59:34 C 13 23 51.33 -02 22 45.7 L W84
2013-04-17 08:02:30 C 13 23 50.87 -02 22 48.0 L W84
2013-04-17 08:05:31 C 13 23 50.38 -02 22 50.3 L W84
2013-04-17 08:08:30 C 13 23 49.91 -02 22 52.5 L W84
2013-04-17 08:11:31 C 13 23 49.45 -02 22 54.9 L W84
2013-04-17 08:14:28 C 13 23 48.97 -02 22 56.9 L W84
2013-04-17 08:17:24 C 13 23 48.50 -02 22 59.3 L W84
2013-04-17 08:20:20 C 13 23 48.04 -02 23 01.5 L W84
2017-04-03 09:22:46 C 14 41 06.18 +16 31 46.1 q G96
2017-04-03 09:28:12 C 14 41 02.85 +16 31 21.9 q G96
2017-04-03 09:33:44 C 14 40 59.44 +16 30 57.5 q G96
2017-04-03 09:39:10 C 14 40 56.10 +16 30 33.1 q G96
2017-04-03 10:54:15 C 14 40 10.23 +16 25 00.0 q I52
2017-04-03 10:54:52 C 14 40 09.86 +16 24 57.3 q I52
2017-04-03 10:55:47 C 14 40 09.29 +16 24 53.5 q I52
2017-04-03 10:58:54 C 14 40 07.40 +16 24 39.4 q I52
2017-04-03 12:05:20 C 14 39 27.15 +16 19 44.8 q I52
2017-04-03 12:05:55 C 14 39 26.83 +16 19 42.2 q I52
2017-04-03 12:06:32 C 14 39 26.47 +16 19 39.5 q I52
2017-04-03 12:07:07 C 14 39 26.11 +16 19 37.0 q I52
2017-04-03 20:40:18 C 14 34 32.82 +15 42 15.2 o K88
2017-04-03 20:46:00 C 14 34 29.58 +15 41 51.1 o K88
2017-04-03 20:51:42 C 14 34 26.29 +15 41 27.2 o K88