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
2021-08-17 09:02:05 S 03 37 29.99 +09 59 32.3 L C51
2021-08-17 10:36:08 S 03 37 34.06 +09 59 47.5 L C51
2021-08-17 12:10:13 S 03 37 38.16 +10 00 03.6 L C51
2021-08-17 15:18:31 S 03 37 46.22 +10 00 34.1 L C51
2021-08-17 18:26:40 S 03 37 54.27 +10 01 05.1 L C51
2021-08-17 21:34:59 S 03 38 02.33 +10 01 35.6 L C51
2021-09-04 13:35:29 C 03 49 44.749 +10 48 57.60 U F52
2021-09-04 13:51:11 C 03 49 44.901 +10 48 58.81 U F52
2021-09-04 14:06:58 C 03 49 45.042 +10 48 59.71 U F52
2021-09-11 12:24:23 C 03 50 33.653 +10 56 51.04 U F51
2021-09-11 12:41:06 C 03 50 33.584 +10 56 51.58 U F51
2021-09-11 12:57:51 C 03 50 33.518 +10 56 52.21 U F51
2021-09-11 13:14:40 C 03 50 33.445 +10 56 52.75 U F51
2021-10-01 11:20:42 C 03 40 00.66 +10 52 10.7 V 703
2021-10-01 11:28:24 C 03 40 00.24 +10 52 11.5 V 703
2021-10-01 11:36:06 C 03 39 59.89 +10 52 10.9 V 703
2021-10-01 11:43:49 C 03 39 59.53 +10 52 11.1 V 703
2021-10-02 10:52:54 C 03 39 01.104 +10 51 05.99 U F52
2021-10-02 11:08:26 C 03 39 00.402 +10 51 05.26 U F52
2021-10-02 11:23:59 C 03 38 59.695 +10 51 04.55 U F52
2021-10-02 11:39:30 C 03 38 58.989 +10 51 03.84 U F52
2021-10-03 09:05:07 C 03 38 02.14 +10 49 56.4 V 703
2021-10-03 09:12:46 C 03 38 01.69 +10 49 55.9 V 703
2021-10-03 09:28:02 C 03 38 00.93 +10 49 56.4 V 703
2021-10-07 07:50:03 C 03 33 27.42 +10 44 29.5 V G96
2021-10-07 07:50:45 C 03 33 27.38 +10 44 29.8 V G96
2021-10-07 07:57:32 C 03 33 27.02 +10 44 29.0 V G96
2021-10-07 07:58:14 C 03 33 26.97 +10 44 29.1 V G96
2021-10-07 08:05:01 C 03 33 26.61 +10 44 28.8 V G96
2021-10-07 08:05:42 C 03 33 26.58 +10 44 28.6 V G96
2021-10-07 08:12:29 C 03 33 26.24 +10 44 28.4 V G96
2021-10-07 08:13:10 C 03 33 26.17 +10 44 28.1 V G96
2021-10-12 18:33:46 C 03 26 11.81 +10 35 31.6 V D29
2021-10-12 18:54:07 C 03 26 10.51 +10 35 30.1 V D29
2021-10-13 07:58:43 C 03 25 24.20 +10 34 32.0 V 703
2021-10-13 08:06:18 C 03 25 23.82 +10 34 32.8 V 703
2021-10-13 08:13:52 C 03 25 23.34 +10 34 30.8 V 703
2021-10-13 08:21:28 C 03 25 22.84 +10 34 30.6 V 703
2021-10-13 14:17:14 C 03 25 01.083 +10 34 05.27 U F51
2021-10-13 14:31:46 C 03 25 00.183 +10 34 04.16 U F51
2021-10-13 14:46:21 C 03 24 59.284 +10 34 03.04 U F51
2021-10-13 15:01:03 C 03 24 58.363 +10 34 01.92 U F51
2021-10-13 16:15:29 C 03 24 54.550 +10 34 02.39 V P07
2021-10-13 17:32:53 C 03 24 49.692 +10 33 57.06 V P07
2021-10-13 18:25:59 C 03 24 46.368 +10 33 53.32 V P07
2021-10-13 20:18:22 C 03 24 39.353 +10 33 44.42 V P07
2021-10-13 20:19:24 C 03 24 39.286 +10 33 44.71 V P07
2021-10-26 12:17:26 C 03 04 50.667 +10 09 39.55 U F52
2021-10-26 12:52:26 C 03 04 48.211 +10 09 36.80 U F52
2021-10-26 13:09:51 C 03 04 47.002 +10 09 35.37 U F52