216258 (2006 WH1)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4850677492 ± 3.14e-08
Semi-major axis (a)1.6712799161 AU ± 5.67e-10
Inclination (i)2.63336005° ± 2.38e-06
Long. of Asc. Node (Ω)240.30357959° ± 1.87e-05
Arg. of Perihelion (ω)263.69685753° ± 2.10e-05
Mean Anomaly (M)248.01602114° ± 1.87e-06
Mean Motion (n)0.4561823570°/day ± 2.32e-10
Perihelion dist (q)0.86059593 AU ± 5.25e-08
Aphelion dist (Q)2.48196390 AU ± 5.25e-08
Orbital Period2.16059711 yr ± 1.10e-09
Physical Parameters
H (abs. magnitude)20.33
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.358″
Uncertainty0
Orbit TypeApollo
MOID0.023560 AU
Observations Used888
Radar Obs Used2
Oppositions7
Arc Total2006-2022
First Observation Used2006-10-23
Last Observation Used2022-05-26
Observations (947)
Date Type RA Dec Mag Band Observatory
2006-11-19 02:34:45 C 04 09 47.02 +21 42 48.3 r J75
2006-11-19 05:19:33 C 04 09 44.71 +21 41 36.0 c 691
2006-11-19 05:44:26 C 04 09 43.81 +21 41 25.1 c 691
2006-11-19 06:09:24 C 04 09 42.90 +21 41 14.2 c 691
2006-11-20 00:41:11 C 04 09 09.51 +21 32 23.9 r J75
2006-11-20 00:46:30 C 04 09 09.28 +21 32 20.8 r J75
2006-11-20 00:52:05 C 04 09 09.08 +21 32 18.5 r J75
2006-11-20 00:57:31 C 04 09 08.83 +21 32 15.8 r J75
2006-11-21 05:56:45 C 04 08 14.69 +21 17 32.6 18.2 c 704
2006-11-21 06:14:44 C 04 08 13.89 +21 17 23.4 18.3 c 704
2006-11-21 06:32:28 C 04 08 13.14 +21 17 14.6 18.1 c 704
2006-11-21 06:50:11 C 04 08 12.36 +21 17 05.1 18.2 c 704
2006-11-21 07:07:56 C 04 08 11.59 +21 16 55.8 18.4 c 704
2006-11-22 03:48:45 C 04 07 30.60 +21 05 30.2 c 691
2006-11-22 04:13:50 C 04 07 29.54 +21 05 17.0 c 691
2006-11-22 04:38:53 C 04 07 28.47 +21 05 03.7 c 691
2006-11-24 05:21:37 C 04 05 33.92 +20 35 25.9 o H68
2006-11-24 05:38:38 C 04 05 33.01 +20 35 14.8 o H68
2006-11-24 05:55:39 C 04 05 32.12 +20 35 03.4 o H68
2006-11-24 06:05:29 C 04 05 31.60 +20 34 56.7 o H68
2006-11-24 06:14:00 C 04 05 31.15 +20 34 51.0 o H68
2006-11-24 07:27:15 C 04 05 27.76 +20 33 59.9 r H45
2006-11-24 07:33:49 C 04 05 27.41 +20 33 55.6 r H45
2006-11-24 07:34:50 C 04 05 27.37 +20 33 54.9 r H45
2006-11-24 07:36:58 C 04 05 27.27 +20 33 53.5 r H45
2006-11-24 07:39:12 C 04 05 27.14 +20 33 52.0 r H45
2006-11-24 07:42:25 C 04 05 26.98 +20 33 49.8 r H45
2006-11-25 02:57:59 C 04 04 39.39 +20 20 42.7 r H98
2006-11-25 03:06:57 C 04 04 38.90 +20 20 36.5 r H98
2006-11-25 03:17:45 C 04 04 38.33 +20 20 29.2 r H98
2006-11-25 06:32:32 C 04 04 28.51 +20 18 18.3 r H45
2006-11-25 06:36:38 C 04 04 28.28 +20 18 15.4 r H45
2006-11-25 06:37:42 C 04 04 28.22 +20 18 14.6 r H45
2006-11-25 06:38:45 C 04 04 28.16 +20 18 13.8 r H45
2006-11-25 06:44:55 C 04 04 27.82 +20 18 09.4 r H45
2006-11-25 06:45:54 C 04 04 27.76 +20 18 08.7 r H45
2006-11-25 07:21:31 C 04 04 25.33 +20 17 44.6 o H68
2006-11-25 07:30:02 C 04 04 24.87 +20 17 39.1 o H68
2006-11-25 07:38:31 C 04 04 24.41 +20 17 32.8 o H68
2006-11-25 07:47:00 C 04 04 23.95 +20 17 25.8 o H68
2006-11-26 06:18:10 C 04 03 22.98 +20 00 59.1 r H45
2006-11-26 06:19:35 C 04 03 22.90 +20 00 58.1 r H45
2006-11-26 06:21:31 C 04 03 22.79 +20 00 56.6 r H45
2006-11-26 06:31:54 C 04 03 22.17 +20 00 48.8 r H45
2006-11-26 06:33:10 C 04 03 22.10 +20 00 47.8 r H45
2006-11-26 06:34:50 C 04 03 22.00 +20 00 46.4 r H45
2006-11-26 17:54:03 C 04 02 51.76 +19 51 48.3 o 151
2006-11-26 17:56:15 C 04 02 51.67 +19 51 46.2 o 151
2006-11-26 17:58:26 C 04 02 51.58 +19 51 44.3 o 151
2006-11-26 18:02:49 C 04 02 51.34 +19 51 41.0 o 151
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2019-12-13 05:15:00 63856438.1 4 us 2380 -1 -1
2019-12-13 06:03:00 63673115.25 0.4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)