420210 (2011 HF)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2347071379 ± 2.32e-08
Semi-major axis (a)1.2834811755 AU ± 2.73e-09
Inclination (i)10.62309112° ± 3.18e-06
Long. of Asc. Node (Ω)204.87474207° ± 9.39e-06
Arg. of Perihelion (ω)149.66031519° ± 1.04e-05
Mean Anomaly (M)238.31625809° ± 1.00e-05
Mean Motion (n)0.6778412919°/day ± 2.16e-09
Perihelion dist (q)0.98223898 AU ± 2.99e-08
Aphelion dist (Q)1.58472337 AU ± 3.00e-08
Orbital Period1.45406645 yr ± 4.64e-09
Physical Parameters
H (abs. magnitude)20.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.245″
Uncertainty0
Orbit TypeApollo
MOID0.009083 AU
Observations Used210
Oppositions4
Arc Total2011-2024
First Observation Used2011-04-22
Last Observation Used2024-04-15
Observations (229)
Date Type RA Dec Mag Band Observatory
2011-05-21 06:27:47 C 12 30 11.72 +03 58 40.7 o 291
2011-05-23 04:30:31 C 12 30 05.99 +04 19 03.3 o 291
2011-05-23 04:38:13 C 12 30 05.99 +04 19 06.8 o 291
2011-05-23 04:45:58 C 12 30 05.94 +04 19 10.9 o 291
2011-06-21 05:32:34 C 12 49 02.51 +05 52 44.4 o 291
2011-06-21 05:38:23 C 12 49 02.78 +05 52 43.4 o 291
2011-06-21 05:44:13 C 12 49 03.09 +05 52 43.0 o 291
2014-01-02 12:44:17 C 13 40 18.78 -16 35 43.3 o 695
2014-01-02 12:48:42 C 13 40 19.16 -16 35 45.1 o 695
2014-01-02 12:52:40 C 13 40 19.49 -16 35 47.0 o 695
2014-01-02 12:56:38 C 13 40 19.82 -16 35 48.7 o 695
2014-03-30 09:12:12 C 16 11 39.03 -18 29 49.0 o 291
2014-03-30 09:20:32 C 16 11 39.33 -18 29 44.5 o 291
2014-03-30 09:28:52 C 16 11 39.63 -18 29 41.5 o 291
2014-05-02 09:03:40 C 16 14 39.91 -07 10 08.7 q 703
2014-05-02 09:25:30 C 16 14 39.17 -07 09 41.8 q 703
2014-05-02 09:36:24 C 16 14 38.79 -07 09 29.3 q 703
2014-05-02 10:32:39 C 16 14 36.53 -07 08 18.2 q G96
2014-05-02 10:38:32 C 16 14 36.28 -07 08 10.8 q G96
2014-05-02 10:44:24 C 16 14 36.07 -07 08 03.4 q G96
2014-05-02 10:50:17 C 16 14 35.83 -07 07 55.7 q G96
2014-05-06 09:18:57 C 16 10 53.44 -05 04 50.3 o 691
2014-05-06 09:44:24 C 16 10 52.16 -05 04 16.5 o 691
2014-05-06 10:09:53 C 16 10 50.93 -05 03 42.1 o 691
2014-05-07 10:38:09 C 16 09 45.520 -04 30 35.67 L F51
2014-05-07 10:55:44 C 16 09 44.604 -04 30 11.76 L F51
2014-05-07 11:13:18 C 16 09 43.687 -04 29 47.90 L F51
2014-05-10 08:31:27 C 16 06 18.18 -02 54 08.0 q 703
2014-05-10 08:40:05 C 16 06 17.65 -02 53 55.5 q 703
2014-05-10 08:48:44 C 16 06 17.06 -02 53 44.2 q 703
2014-05-10 09:22:13 C 16 06 15.25 -02 52 56.4 o 691
2014-05-10 09:47:40 C 16 06 13.78 -02 52 21.0 o 691
2014-05-10 10:13:07 C 16 06 12.32 -02 51 44.8 o 691
2014-05-21 06:17:00 C 15 50 09.09 +03 20 23.3 q 703
2014-05-21 06:24:51 C 15 50 08.51 +03 20 36.2 q 703
2014-05-21 06:32:04 C 15 50 07.97 +03 20 46.1 q 703
2014-05-21 06:39:16 C 15 50 07.44 +03 20 56.1 q 703
2014-05-22 08:53:08 C 15 48 17.01 +03 58 01.9 o 291
2014-05-22 08:53:41 C 15 48 16.97 +03 58 02.7 o 291
2014-05-22 08:55:22 C 15 48 16.85 +03 58 05.1 o 291
2014-05-22 08:55:54 C 15 48 16.80 +03 58 05.8 o 291
2014-05-22 08:57:33 C 15 48 16.67 +03 58 08.1 o 291
2014-05-22 08:58:05 C 15 48 16.63 +03 58 09.0 o 291
2014-05-23 07:32:35 C 15 46 41.67 +04 29 47.3 q G96
2014-05-23 07:40:04 C 15 46 41.11 +04 29 57.7 q G96
2014-05-23 07:47:34 C 15 46 40.54 +04 30 08.0 q G96
2014-05-23 07:55:05 C 15 46 39.94 +04 30 18.5 q G96
2014-05-30 00:57:10 C 15 35 06.11 +08 04 25.0 q 204
2014-05-30 01:17:33 C 15 35 04.52 +08 04 50.4 q 204
2014-06-07 03:49:11 C 15 21 48.99 +11 43 36.9 o 291