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
2006-12-13 21:37:44 C 03 25 22.98 +08 05 49.2 c A53
2006-12-13 21:40:30 C 03 25 22.60 +08 05 38.3 r 203
2006-12-13 22:17:50 C 03 25 15.62 +08 03 24.9 r 203
2006-12-13 22:52:21 C 03 25 09.20 +08 01 21.6 c A24
2006-12-13 22:53:47 C 03 25 08.89 +08 01 16.4 c A24
2006-12-14 05:52:22 C 03 23 57.35 +07 36 05.3 r H45
2006-12-14 05:58:29 C 03 23 56.16 +07 35 42.4 r H45
2006-12-14 05:59:27 C 03 23 55.98 +07 35 38.7 r H45
2006-12-14 06:02:09 C 03 23 55.45 +07 35 28.6 r H45
2006-12-14 06:03:29 C 03 23 55.19 +07 35 23.8 r H45
2006-12-14 06:04:58 C 03 23 54.90 +07 35 18.1 r H45
2006-12-14 20:31:57 C 03 21 24.27 +06 39 18.6 c 246
2006-12-14 20:33:24 C 03 21 23.98 +06 39 13.0 c 246
2006-12-14 20:38:09 C 03 21 22.99 +06 38 53.6 c 246
2006-12-14 20:39:53 C 03 21 22.64 +06 38 46.7 c 246
2006-12-14 20:42:32 C 03 21 22.11 +06 38 36.4 c 246
2006-12-14 20:43:30 C 03 21 21.92 +06 38 32.7 c 246
2006-12-14 21:25:17 C 03 21 13.75 +06 35 49.1 c A24
2006-12-14 21:26:42 C 03 21 13.48 +06 35 43.7 c A24
2006-12-14 21:31:51 C 03 21 12.41 +06 35 22.3 r 203
2006-12-14 22:15:18 C 03 21 03.45 +06 32 27.2 r 203
2006-12-14 23:33:39 C 03 20 47.38 +06 27 09.2 c A24
2006-12-14 23:35:05 C 03 20 47.06 +06 27 03.2 c A24
2006-12-15 18:44:05 C 03 17 10.03 +05 05 06.0 c 127
2006-12-15 18:53:02 C 03 17 08.04 +05 04 25.6 c 127
2006-12-15 19:04:55 C 03 17 04.99 +05 03 32.0 r 113
2006-12-15 19:05:59 C 03 17 04.76 +05 03 27.3 r 113
2006-12-15 19:07:00 C 03 17 04.53 +05 03 22.6 r 113
2006-12-15 19:08:00 C 03 17 04.30 +05 03 18.2 r 113
2006-12-15 20:17:45 C 03 16 49.04 +04 58 05.5 r A17
2006-12-15 20:17:46 C 03 16 48.57 +04 58 07.6 c 246
2006-12-15 20:18:38 C 03 16 48.36 +04 58 03.4 c 246
2006-12-15 20:19:45 C 03 16 48.10 +04 57 58.2 c 246
2006-12-15 20:20:45 C 03 16 47.88 +04 57 53.8 c 246
2006-12-15 20:21:41 C 03 16 47.68 +04 57 49.9 c 246
2006-12-15 20:23:00 C 03 16 47.38 +04 57 43.8 c 246
2006-12-15 20:23:58 C 03 16 47.16 +04 57 39.6 c 246
2006-12-15 20:32:32 C 03 16 45.68 +04 56 58.6 r A17
2006-12-15 20:44:51 C 03 16 42.91 +04 56 02.7 r A17
2006-12-15 21:53:54 C 03 16 26.71 +04 50 49.5 c 246
2006-12-15 21:57:22 C 03 16 25.91 +04 50 33.4 c 246
2006-12-15 21:58:37 C 03 16 25.66 +04 50 28.5 c 246
2006-12-15 21:59:57 C 03 16 25.35 +04 50 22.2 c 246
2006-12-15 22:01:07 C 03 16 25.09 +04 50 16.9 c 246
2006-12-15 22:02:11 C 03 16 24.82 +04 50 11.7 c 246
2006-12-15 22:04:54 C 03 16 25.83 +04 50 11.6 r J87
2006-12-15 22:24:30 C 03 16 21.27 +04 48 41.6 r J87
2006-12-15 22:44:08 C 03 16 16.71 +04 47 11.5 r J87
2006-12-16 06:06:53 C 03 14 42.77 +04 12 52.0 s 696
2006-12-16 06:08:34 C 03 14 42.36 +04 12 43.9 s 696
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)