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
2006-12-12 12:56:33 C 03 30 28.38 +09 53 41.1 r 379
2006-12-12 13:01:43 C 03 30 27.52 +09 53 25.6 r 379
2006-12-12 13:06:55 C 03 30 26.65 +09 53 09.7 r 379
2006-12-12 13:18:27 C 03 30 24.68 +09 52 34.5 r 379
2006-12-12 13:35:02 C 03 30 21.88 +09 51 43.8 r 379
2006-12-12 17:58:37 C 03 29 47.47 +09 37 54.0 o A78
2006-12-12 18:02:49 C 03 29 46.82 +09 37 41.1 o A78
2006-12-12 18:07:30 C 03 29 46.07 +09 37 26.9 o A78
2006-12-12 18:12:10 C 03 29 45.27 +09 37 11.8 o A78
2006-12-12 18:16:50 C 03 29 44.55 +09 36 58.1 o A78
2006-12-12 19:35:56 C 03 29 31.12 +09 32 43.6 r 113
2006-12-12 19:37:13 C 03 29 30.90 +09 32 39.4 r 113
2006-12-12 19:38:35 C 03 29 30.68 +09 32 35.2 r 113
2006-12-12 19:39:48 C 03 29 30.48 +09 32 31.5 r 113
2006-12-12 19:41:17 C 03 29 30.24 +09 32 26.8 r 113
2006-12-12 19:42:33 C 03 29 30.03 +09 32 22.9 r 113
2006-12-12 20:45:42 C 03 29 19.84 +09 29 11.2 c A24
2006-12-12 20:47:08 C 03 29 19.63 +09 29 07.1 c A24
2006-12-12 21:52:34 C 03 29 08.41 +09 25 39.4 c A24
2006-12-12 21:53:59 C 03 29 08.20 +09 25 35.4 c A24
2006-12-13 04:32:54 C 03 28 08.63 +09 04 25.7 16.5 c 704
2006-12-13 04:51:00 C 03 28 05.46 +09 03 29.4 17.3 c 704
2006-12-13 05:09:11 C 03 28 02.13 +09 02 26.8 16.5 c 704
2006-12-13 05:27:23 C 03 27 58.85 +09 01 26.9 16.7 c 704
2006-12-13 05:45:21 C 03 27 55.65 +09 00 28.2 16.8 c 704
2006-12-13 06:17:57 C 03 27 50.86 +08 58 40.8 d G72
2006-12-13 06:21:03 C 03 27 50.30 +08 58 30.3 d G72
2006-12-13 06:25:39 C 03 27 49.45 +08 58 14.4 d G72
2006-12-13 06:26:55 C 03 27 47.05 +08 58 06.6 r H45
2006-12-13 06:27:42 C 03 27 46.90 +08 58 04.1 r H45
2006-12-13 06:28:45 C 03 27 48.90 +08 58 04.6 d G72
2006-12-13 06:29:57 C 03 27 46.51 +08 57 56.6 r H45
2006-12-13 06:31:51 C 03 27 48.36 +08 57 54.0 d G72
2006-12-13 06:31:55 C 03 27 46.16 +08 57 50.1 r H45
2006-12-13 06:34:11 C 03 27 45.77 +08 57 42.3 r H45
2006-12-13 06:34:56 C 03 27 47.81 +08 57 44.0 d G72
2006-12-13 06:38:21 C 03 27 45.03 +08 57 28.5 r H45
2006-12-13 06:38:57 C 03 27 44.93 +08 57 26.5 r H45
2006-12-13 18:32:52 C 03 25 57.08 +08 16 36.5 o 151
2006-12-13 18:33:45 C 03 25 56.92 +08 16 33.5 o 151
2006-12-13 18:34:38 C 03 25 56.77 +08 16 30.6 o 151
2006-12-13 18:35:32 C 03 25 56.60 +08 16 27.3 o 151
2006-12-13 18:36:25 C 03 25 56.45 +08 16 24.4 o 151
2006-12-13 18:37:19 C 03 25 56.29 +08 16 21.2 o 151
2006-12-13 18:38:12 C 03 25 56.13 +08 16 17.8 o 151
2006-12-13 21:10:09 C 03 25 28.25 +08 07 25.7 c A24
2006-12-13 21:11:35 C 03 25 28.02 +08 07 21.6 c A24
2006-12-13 21:24:01 C 03 25 25.54 +08 06 37.8 c A53
2006-12-13 21:28:15 C 03 25 24.75 +08 06 23.0 c A53
2006-12-13 21:33:31 C 03 25 23.77 +08 06 03.8 c A53
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)