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
2010-08-27 15:08:09 C 02 41 37.194 -11 34 33.28 L F51
2010-08-27 15:15:04 C 02 41 36.907 -11 34 32.34 L F51
2010-10-06 12:00:17 C 01 35 01.138 -09 19 29.78 L F51
2010-10-06 12:16:21 C 01 34 59.841 -09 19 24.55 L F51
2010-10-12 07:12:58 C 01 24 59.54 -08 38 25.3 17.5 c 704
2010-10-12 07:33:37 C 01 24 58.04 -08 38 19.1 18.1 c 704
2010-10-12 07:41:26 C 01 24 57.60 -08 38 15.6 r 703
2010-10-12 07:50:27 C 01 24 56.91 -08 38 13.2 r 703
2010-10-12 07:53:53 C 01 24 56.62 -08 38 12.3 17.8 c 704
2010-10-12 07:59:40 C 01 24 56.30 -08 38 10.2 r 703
2010-10-12 08:08:58 C 01 24 55.62 -08 38 07.6 r 703
2010-10-12 08:13:57 C 01 24 55.19 -08 38 06.4 18.2 c 704
2010-10-12 08:34:11 C 01 24 53.75 -08 37 59.5 17.8 c 704
2010-10-29 05:30:08 C 01 03 52.20 -06 09 37.5 r 703
2010-10-29 05:40:51 C 01 03 51.69 -06 09 33.8 r 703
2010-10-29 05:51:42 C 01 03 51.33 -06 09 30.1 r 703
2010-10-29 06:02:32 C 01 03 50.97 -06 09 24.6 r 703
2010-10-29 09:13:31 C 01 03 44.150 -06 08 06.64 L F51
2010-10-29 09:29:27 C 01 03 43.537 -06 08 00.27 L F51
2010-11-01 05:47:05 C 01 01 30.48 -05 40 15.2 G92
2010-11-01 06:09:35 C 01 01 29.72 -05 40 07.2 G92
2010-11-01 06:32:06 C 01 01 29.05 -05 39 58.3 G92
2010-11-06 01:48:31 C 00 58 35.30 -04 52 00.0 u H15
2010-11-06 02:27:10 C 00 58 34.41 -04 51 43.4 u H15
2010-11-06 03:05:55 C 00 58 33.48 -04 51 26.5 u H15
2010-11-06 03:44:33 C 00 58 32.61 -04 51 10.5 u H15
2010-11-08 04:28:31 C 00 57 37.58 -04 30 33.9 r 703
2010-11-08 04:38:21 C 00 57 37.47 -04 30 29.1 r 703
2010-11-08 04:48:14 C 00 57 37.18 -04 30 25.3 r 703
2010-11-08 04:58:16 C 00 57 37.04 -04 30 17.3 r 703
2010-11-09 04:36:27 C 00 57 14.22 -04 20 17.2 19.7 c 704
2010-11-09 04:55:11 C 00 57 13.89 -04 20 08.9 19.4 c 704
2010-11-09 05:13:45 C 00 57 13.78 -04 20 03.1 19.8 c 704
2010-11-09 05:32:37 C 00 57 13.23 -04 19 52.7 20.0 c 704
2010-11-09 05:51:32 C 00 57 12.93 -04 19 44.3 19.8 c 704
2010-11-11 07:27:24 C 00 56 33.513 -03 58 30.20 L F51
2010-11-11 07:43:52 C 00 56 33.285 -03 58 23.27 L F51
2010-11-22 09:36:00 C 00 55 46.637 -02 03 07.38 L F51
2010-11-22 09:52:18 C 00 55 46.699 -02 03 00.41 L F51
2014-11-17 08:25:30 C 04 38 26.941 +21 59 10.70 L F51
2014-11-17 08:44:02 C 04 38 25.926 +21 59 10.47 L F51
2014-11-17 09:02:35 C 04 38 24.860 +21 59 10.22 L F51
2014-11-22 09:21:55 C 04 31 39.48 +21 56 21.9 q G96
2014-11-22 09:31:37 C 04 31 38.92 +21 56 21.4 q G96
2014-11-22 09:41:19 C 04 31 38.35 +21 56 21.3 q G96
2014-11-22 09:51:01 C 04 31 37.82 +21 56 20.9 q G96
2014-11-27 12:07:27 C 04 24 42.982 +21 52 07.36 L F51
2014-11-27 12:26:35 C 04 24 41.881 +21 52 06.78 L F51
2014-11-27 12:45:38 C 04 24 40.774 +21 52 05.83 L F51
2014-11-27 13:04:41 C 04 24 39.679 +21 52 05.21 L F51