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
2006-12-10 18:28:23 C 03 36 14.72 +11 50 56.0 A48
2006-12-10 18:33:45 C 03 36 14.00 +11 50 42.5 A48
2006-12-10 18:39:07 C 03 36 13.22 +11 50 29.3 A48
2006-12-10 18:44:28 C 03 36 12.50 +11 50 16.2 A48
2006-12-10 19:14:03 C 03 36 08.48 +11 49 01.5 16.5 r 130
2006-12-10 19:15:30 C 03 36 08.26 +11 48 57.8 16.4 r 130
2006-12-10 19:16:14 C 03 36 08.15 +11 48 55.9 16.5 r 130
2006-12-10 19:18:23 C 03 36 07.86 +11 48 50.8 16.6 r 130
2006-12-10 19:24:24 C 03 36 06.78 +11 48 36.2 c 595
2006-12-10 19:28:32 C 03 36 06.21 +11 48 25.6 c 595
2006-12-10 19:30:04 C 03 36 06.85 +11 48 26.0 r A06
2006-12-10 19:32:41 C 03 36 05.62 +11 48 15.4 c 595
2006-12-10 19:36:27 C 03 36 05.28 +11 47 59.8 c 127
2006-12-10 19:38:33 C 03 36 05.68 +11 48 04.7 r A06
2006-12-10 19:43:20 C 03 36 04.34 +11 47 42.8 c 127
2006-12-10 19:56:43 C 03 36 02.48 +11 47 09.0 c 127
2006-12-10 20:03:06 C 03 36 01.60 +11 46 53.0 c 127
2006-12-10 21:10:31 C 03 35 51.99 +11 44 08.5 c A24
2006-12-10 21:11:57 C 03 35 51.81 +11 44 05.1 c A24
2006-12-10 21:43:28 C 03 35 47.13 +11 42 45.1 c A53
2006-12-10 22:03:33 C 03 35 44.27 +11 41 53.4 c A53
2006-12-10 22:06:54 C 03 35 43.60 +11 41 44.3 o 473
2006-12-10 22:14:20 C 03 35 42.68 +11 41 26.3 c A53
2006-12-10 22:24:55 C 03 35 41.17 +11 40 59.1 c A53
2006-12-10 22:35:29 C 03 35 39.64 +11 40 31.9 c A53
2006-12-10 22:44:18 C 03 35 38.23 +11 40 08.1 o 473
2006-12-10 23:38:24 C 03 35 30.72 +11 37 49.0 c A24
2006-12-10 23:39:50 C 03 35 30.50 +11 37 45.2 c A24
2006-12-11 19:13:15 C 03 33 00.56 +10 45 13.8 o A78
2006-12-11 19:18:50 C 03 32 59.67 +10 44 58.1 o A78
2006-12-11 19:24:29 C 03 32 58.84 +10 44 42.6 o A78
2006-12-11 19:30:06 C 03 32 57.98 +10 44 26.7 o A78
2006-12-11 19:35:42 C 03 32 57.11 +10 44 11.5 o A78
2006-12-11 20:41:30 C 03 32 47.13 +10 41 04.7 c A24
2006-12-11 20:42:58 C 03 32 46.89 +10 41 00.6 c A24
2006-12-11 20:46:17 C 03 32 46.25 +10 40 51.3 c A53
2006-12-11 20:51:34 C 03 32 45.44 +10 40 36.7 c A53
2006-12-11 20:57:55 C 03 32 44.43 +10 40 18.8 c A53
2006-12-11 21:04:14 C 03 32 43.44 +10 40 01.0 c A53
2006-12-11 21:10:34 C 03 32 42.45 +10 39 43.2 c A53
2006-12-11 22:43:29 C 03 32 28.03 +10 35 18.1 c A24
2006-12-11 22:44:55 C 03 32 27.85 +10 35 14.5 c A24
2006-12-12 00:00:36 C 03 32 16.06 +10 31 35.8 c A24
2006-12-12 07:07:01 C 03 31 16.57 +10 11 12.6 r 703
2006-12-12 07:16:31 C 03 31 15.02 +10 10 44.2 r 703
2006-12-12 07:25:58 C 03 31 13.47 +10 10 16.1 r 703
2006-12-12 07:35:30 C 03 31 11.89 +10 09 47.5 r 703
2006-12-12 12:39:31 C 03 30 31.26 +09 54 33.0 r 379
2006-12-12 12:44:41 C 03 30 30.38 +09 54 17.4 r 379
2006-12-12 12:51:23 C 03 30 29.23 +09 53 57.1 r 379
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)