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
2014-11-30 07:48:12 C 04 20 56.19 +21 49 15.6 q G96
2014-11-30 07:57:02 C 04 20 55.72 +21 49 15.1 q G96
2014-11-30 08:05:48 C 04 20 55.21 +21 49 14.9 q G96
2014-11-30 08:14:47 C 04 20 54.67 +21 49 14.6 q G96
2014-12-13 06:50:58 C 04 04 52.633 +21 33 42.02 L F51
2014-12-13 07:09:08 C 04 04 51.743 +21 33 41.14 L F51
2014-12-13 07:27:19 C 04 04 50.888 +21 33 40.13 L F51
2014-12-13 07:45:35 C 04 04 50.037 +21 33 39.29 L F51
2017-02-22 08:08:38 C 11 28 49.24 +18 08 17.7 q G96
2017-02-22 08:14:52 C 11 28 48.99 +18 08 20.4 q G96
2017-02-22 08:21:08 C 11 28 48.67 +18 08 23.2 q G96
2017-02-22 08:27:19 C 11 28 48.37 +18 08 25.4 q G96
2017-02-22 09:04:33 C 11 28 46.979 +18 08 41.56 L F51
2017-02-22 09:22:52 C 11 28 46.155 +18 08 48.94 L F51
2017-02-22 09:41:06 C 11 28 45.319 +18 08 56.35 L F51
2017-02-22 09:59:22 C 11 28 44.489 +18 09 03.90 L F51
2017-03-05 04:26:00 C 11 15 54.32 +19 52 09.1 V G45
2017-03-05 05:31:17 C 11 15 50.70 +19 52 33.8 V G45
2017-03-05 05:33:36 C 11 15 50.52 +19 52 35.3 V G45
2017-03-05 08:23:34 C 11 15 41.04 +19 53 39.5 V G45
2017-03-05 09:35:56 C 11 15 36.97 +19 54 08.2 V G45
2017-03-05 09:40:26 C 11 15 36.72 +19 54 08.9 V G45
2017-03-07 07:27:33 C 11 13 05.54 +20 11 22.9 q G96
2017-03-07 07:37:12 C 11 13 04.98 +20 11 26.1 q G96
2017-03-07 07:51:29 C 11 13 04.06 +20 11 30.8 q G96
2017-03-28 06:01:31 C 10 44 36.590 +22 29 16.09 L F51
2017-03-28 06:16:24 C 10 44 35.785 +22 29 18.41 L F51
2017-03-28 06:46:05 C 10 44 34.178 +22 29 23.15 L F51
2017-04-03 05:36:52 C 10 37 29.10 +22 45 38.8 q G96
2017-04-03 05:43:01 C 10 37 28.80 +22 45 39.4 q G96
2017-04-03 05:49:13 C 10 37 28.49 +22 45 39.8 q G96
2017-04-03 05:55:20 C 10 37 28.21 +22 45 40.6 q G96
2017-04-23 03:29:36 C 10 22 10.28 +22 22 07.2 q G96
2017-04-23 03:35:44 C 10 22 10.20 +22 22 05.9 q G96
2017-04-23 03:41:52 C 10 22 10.05 +22 22 05.3 q G96
2017-04-23 03:47:58 C 10 22 09.93 +22 22 04.2 q G96
2021-02-11 15:03:06 C 16 03 19.437 -14 02 12.16 U F51
2021-02-11 15:08:40 C 16 03 20.184 -14 02 14.79 U F51
2021-02-11 15:14:17 C 16 03 20.916 -14 02 17.33 U F51
2021-02-11 15:19:51 C 16 03 21.649 -14 02 19.85 U F51
2021-08-16 12:38:39 S 03 36 36.17 +09 56 06.9 L C51
2021-08-16 15:47:32 S 03 36 44.55 +09 56 39.0 L C51
2021-08-16 18:55:40 S 03 36 52.88 +09 57 11.0 L C51
2021-08-16 22:03:58 S 03 37 01.22 +09 57 43.2 L C51
2021-08-17 01:12:06 S 03 37 09.51 +09 58 15.6 L C51
2021-08-17 02:46:21 S 03 37 13.62 +09 58 30.3 L C51
2021-08-17 04:19:42 S 03 37 17.70 +09 58 45.8 L C51
2021-08-17 05:53:45 S 03 37 21.79 +09 59 00.7 L C51
2021-08-17 07:27:50 S 03 37 25.93 +09 59 16.5 L C51
2021-08-17 07:28:00 S 03 37 25.91 +09 59 17.4 L C51