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
2010-01-15 14:56:01 S 13 38 39.778 -00 35 00.02 L C51
2010-01-15 18:06:32 S 13 38 51.76 -00 35 46.1 L C51
2010-01-15 19:41:53 S 13 38 57.77 -00 36 08.2 L C51
2010-01-15 21:17:03 S 13 39 03.71 -00 36 31.5 L C51
2010-01-15 22:52:24 S 13 39 09.73 -00 36 54.1 L C51
2010-01-16 00:27:45 S 13 39 15.72 -00 37 17.3 L C51
2010-01-16 02:02:55 S 13 39 21.67 -00 37 39.6 L C51
2010-01-16 03:38:17 S 13 39 27.70 -00 38 02.2 L C51
2010-01-16 05:13:27 S 13 39 33.63 -00 38 25.6 L C51
2010-01-16 08:24:09 S 13 39 45.66 -00 39 10.8 L C51
2010-01-16 11:34:40 S 13 39 57.62 -00 39 57.2 L C51
2010-01-16 14:45:11 S 13 40 09.59 -00 40 41.5 L C51
2010-02-14 13:05:17 C 14 22 56.78 -02 53 15.8 o 291
2010-02-14 13:10:43 C 14 22 57.10 -02 53 15.7 o 291
2010-02-14 13:16:03 C 14 22 57.43 -02 53 17.8 o 291
2010-02-26 14:07:35 C 14 39 58.831 -03 27 15.86 L F51
2010-02-26 14:21:06 C 14 39 59.575 -03 27 17.14 L F51
2010-03-13 11:51:39 C 15 00 06.73 -03 53 11.7 r 703
2010-03-13 11:56:43 C 15 00 07.09 -03 53 11.2 r 703
2010-03-13 12:01:48 C 15 00 07.38 -03 53 11.2 r 703
2010-03-13 12:06:52 C 15 00 07.59 -03 53 11.6 r 703
2010-03-21 11:08:08 C 15 10 21.21 -04 01 27.7 r 703
2010-03-21 11:15:41 C 15 10 21.64 -04 01 28.7 r 703
2010-03-21 11:23:15 C 15 10 22.00 -04 01 28.5 r 703
2010-03-21 11:30:48 C 15 10 22.40 -04 01 28.4 r 703
2010-03-27 02:08:16 C 15 17 22.54 -04 06 32.7 v 204
2010-03-27 02:16:35 C 15 17 22.93 -04 06 33.2 v 204
2010-03-27 03:11:49 C 15 17 25.63 -04 06 35.2 v 204
2010-03-27 03:20:20 C 15 17 26.04 -04 06 35.4 v 204
2010-04-05 10:53:13 C 15 28 47.85 -04 17 06.2 r 703
2010-04-05 11:02:28 C 15 28 48.25 -04 17 07.6 r 703
2010-04-05 11:11:36 C 15 28 48.68 -04 17 08.1 r 703
2010-04-05 11:20:45 C 15 28 49.11 -04 17 08.0 r 703
2010-04-15 10:03:09 C 15 40 54.34 -04 40 25.6 o 691
2010-04-15 10:21:19 C 15 40 55.18 -04 40 28.2 o 691
2010-04-15 10:39:29 C 15 40 56.03 -04 40 30.9 o 691
2010-04-17 04:59:17 C 15 43 08.32 -04 46 50.6 c 844
2010-04-17 05:08:08 C 15 43 08.84 -04 46 49.2 c 844
2010-04-17 05:12:48 C 15 43 08.99 -04 46 53.1 c 844
2010-04-17 05:33:51 C 15 43 10.00 -04 46 56.8 c 844
2010-04-26 08:53:50 C 15 55 25.42 -05 44 47.5 r G96
2010-04-26 09:02:13 C 15 55 25.89 -05 44 50.6 r G96
2010-04-26 09:10:32 C 15 55 26.32 -05 44 53.6 r G96
2010-04-27 02:12:49 C 15 56 29.31 -05 51 34.9 u J95
2010-04-27 02:24:19 C 15 56 29.97 -05 51 39.3 u J95
2010-04-27 02:33:41 C 15 56 30.51 -05 51 43.0 u J95
2010-05-01 06:30:50 C 16 03 08.34 -06 38 21.4 r I20
2010-05-01 06:42:21 C 16 03 09.08 -06 38 27.6 r I20
2010-05-01 06:52:29 C 16 03 09.72 -06 38 33.8 r I20
2010-05-04 09:44:26 C 16 08 48.51 -07 26 31.7 r 703