234061 (1999 HE1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5720647791 ± 2.08e-08
Semi-major axis (a)2.3623953835 AU ± 4.07e-09
Inclination (i)8.16235756° ± 5.36e-06
Long. of Asc. Node (Ω)65.79441179° ± 2.13e-05
Arg. of Perihelion (ω)221.98361759° ± 2.21e-05
Mean Anomaly (M)87.44993620° ± 4.92e-06
Mean Motion (n)0.2714459700°/day ± 7.01e-10
Perihelion dist (q)1.01095219 AU ± 4.93e-08
Aphelion dist (Q)3.71383858 AU ± 4.97e-08
Orbital Period3.63102198 yr ± 9.38e-09
Physical Parameters
H (abs. magnitude)17.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.359″
Uncertainty0
Orbit TypeApollo
MOID0.052130 AU
Observations Used370
Oppositions19
Arc Total1999-2025
First Observation Used1999-04-18
Last Observation Used2025-12-26
Observations (448)
Date Type RA Dec Mag Band Observatory
2010-05-04 09:53:10 C 16 08 49.16 -07 26 37.8 r 703
2010-05-04 10:02:03 C 16 08 49.81 -07 26 44.1 r 703
2010-05-04 10:10:47 C 16 08 50.42 -07 26 50.3 r 703
2010-05-08 02:53:59 C 16 16 39.23 -08 40 01.4 834
2010-05-08 03:11:30 C 16 16 40.79 -08 40 18.6 834
2010-05-08 03:26:13 C 16 16 42.04 -08 40 32.6 834
2010-05-11 09:43:18 C 16 24 55.76 -10 07 38.7 r G96
2010-05-11 09:52:38 C 16 24 56.73 -10 07 50.3 r G96
2010-05-11 10:01:56 C 16 24 57.70 -10 08 01.8 r G96
2010-05-11 10:11:21 C 16 24 58.71 -10 08 13.6 r G96
2010-05-19 08:21:42 C 16 54 43.41 -15 45 53.4 r 703
2010-05-19 08:30:07 C 16 54 45.07 -15 46 13.9 r 703
2010-05-19 08:38:32 C 16 54 46.72 -15 46 34.2 r 703
2010-05-19 08:46:57 C 16 54 48.34 -15 46 54.7 r 703
2010-05-19 08:55:20 C 16 54 50.00 -15 47 15.1 r 703
2010-05-20 09:21:42 C 17 00 13.60 -16 49 11.1 u H47
2010-05-20 09:25:43 C 17 00 14.49 -16 49 21.7 u H47
2010-05-20 09:29:39 C 17 00 15.34 -16 49 32.0 u H47
2010-05-20 09:34:11 C 17 00 16.33 -16 49 43.8 u H47
2010-06-18 07:36:37 S 00 48 45.866 -33 15 31.00 L C51
2010-06-18 10:47:08 S 00 49 57.926 -33 07 11.35 L C51
2010-06-18 13:57:39 S 00 51 08.990 -32 58 54.66 L C51
2010-06-18 15:33:00 S 00 51 44.21 -32 54 46.6 L C51
2010-06-18 17:08:10 S 00 52 19.08 -32 50 40.8 L C51
2010-06-18 18:43:31 S 00 52 53.81 -32 46 34.1 L C51
2010-06-18 20:18:42 S 00 53 28.21 -32 42 29.6 L C51
2010-06-18 21:54:02 S 00 54 02.45 -32 38 24.5 L C51
2010-06-19 01:04:22 S 00 55 10.106 -32 30 19.48 L C51
2010-06-19 01:04:33 S 00 55 10.157 -32 30 17.86 L C51
2010-06-19 04:14:53 S 00 56 16.910 -32 22 15.56 L C51
2010-06-19 04:15:04 S 00 56 16.939 -32 22 14.12 L C51
2010-07-23 20:05:41 S 02 38 47.49 -15 30 54.1 L C51
2010-07-23 23:16:12 S 02 38 55.35 -15 29 11.3 L C51
2010-07-24 02:26:43 S 02 39 03.15 -15 27 29.1 L C51
2010-07-24 05:37:14 S 02 39 10.89 -15 25 47.4 L C51
2010-07-24 10:22:55 S 02 39 22.42 -15 23 15.9 L C51
2010-07-24 11:58:16 S 02 39 26.24 -15 22 25.3 L C51
2010-07-24 13:33:26 S 02 39 30.03 -15 21 35.3 L C51
2010-07-24 15:08:47 S 02 39 33.82 -15 20 45.1 L C51
2010-07-24 16:43:57 S 02 39 37.59 -15 19 55.5 L C51
2010-07-24 18:19:07 S 02 39 41.34 -15 19 05.9 L C51
2010-07-24 19:54:28 S 02 39 45.09 -15 18 15.8 L C51
2010-07-24 21:29:38 S 02 39 48.82 -15 17 26.5 L C51
2010-07-24 23:04:59 S 02 39 52.55 -15 16 36.7 L C51
2010-07-25 02:15:30 S 02 39 59.95 -15 14 58.0 L C51
2010-07-25 05:26:01 S 02 40 07.32 -15 13 20.1 L C51
2010-07-25 08:36:21 S 02 40 14.585 -15 11 43.12 L C51
2010-07-25 11:46:52 S 02 40 21.84 -15 10 05.6 L C51
2010-08-03 02:09:24 S 02 46 20.114 -13 40 44.44 L C51
2010-08-03 03:44:45 S 02 46 22.010 -13 40 09.62 L C51