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
2021-04-03 09:47:09 C 14 50 20.19 +14 47 35.7 V 703
2021-04-04 19:24:16 C 14 28 29.83 +12 11 24.5 q D29
2021-04-04 19:44:38 C 14 28 17.60 +12 09 54.6 q D29
2021-04-04 20:05:00 C 14 28 05.44 +12 08 26.2 q D29
2021-04-04 20:54:10 C 14 27 40.81 +12 04 39.5 V B67
2021-04-04 21:00:36 C 14 27 37.06 +12 04 11.8 V B67
2021-04-04 21:07:03 C 14 27 33.25 +12 03 44.0 V B67
2021-04-04 21:13:27 C 14 27 29.49 +12 03 14.7 V B67
2021-04-08 09:28:22 C 13 48 26.82 +06 59 26.8 V G96
2021-04-08 09:35:17 C 13 48 24.25 +06 59 06.1 V G96
2021-04-08 09:57:27 C 13 48 15.94 +06 58 00.4 V G96
2021-04-08 10:04:21 C 13 48 13.37 +06 57 39.7 V G96
2021-04-08 10:43:15 C 13 48 00.813 +06 55 53.94 U F51
2021-04-08 11:01:40 C 13 47 53.919 +06 54 59.54 U F51
2021-04-08 11:20:01 C 13 47 47.075 +06 54 05.51 U F51
2021-04-08 11:38:20 C 13 47 40.255 +06 53 11.74 U F51
2021-04-16 09:53:15 C 13 03 02.989 +00 31 09.21 U F51
2021-04-16 10:14:23 C 13 02 59.711 +00 30 40.81 U F51
2021-04-16 10:35:30 C 13 02 56.433 +00 30 12.32 U F51
2025-04-21 03:38:56 C 13 30 16.290 -09 05 55.70 V 807
2025-04-21 03:44:19 C 13 30 15.510 -09 05 56.90 V 807
2025-04-21 03:49:41 C 13 30 14.770 -09 05 57.80 V 807
2025-04-21 05:41:10 C 13 29 59.813 -09 06 35.50 V G96
2025-04-21 05:50:46 C 13 29 58.520 -09 06 36.90 V G96
2025-04-21 05:58:47 C 13 29 57.361 -09 06 38.92 V G96
2025-04-21 06:06:48 C 13 29 56.270 -09 06 40.39 V G96