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
2006-12-20 13:11:22 C 02 44 57.53 -07 03 19.1 r 379
2006-12-20 13:18:23 C 02 44 54.52 -07 04 21.2 r 379
2006-12-20 13:20:09 C 02 44 53.79 -07 04 36.4 r 379
2006-12-20 13:21:53 C 02 44 53.02 -07 04 52.0 r 379
2006-12-20 13:26:11 C 02 44 51.22 -07 05 29.4 r 379
2006-12-20 13:29:40 C 02 44 49.75 -07 06 00.4 r 379
2006-12-20 13:33:11 C 02 44 48.21 -07 06 31.7 r 379
2006-12-20 13:34:57 C 02 44 47.46 -07 06 46.7 r 379
2006-12-20 18:21:40 C 02 43 01.58 -07 50 10.1 o 151
2006-12-20 18:22:11 C 02 43 01.36 -07 50 14.8 o 151
2006-12-20 18:22:41 C 02 43 01.16 -07 50 19.5 o 151
2006-12-20 18:23:11 C 02 43 00.92 -07 50 24.1 o 151
2006-12-20 18:23:43 C 02 43 00.70 -07 50 28.8 o 151
2006-12-20 18:24:13 C 02 43 00.47 -07 50 33.5 o 151
2006-12-20 18:24:43 C 02 43 00.26 -07 50 38.1 o 151
2006-12-20 20:09:58 C 02 42 13.85 -08 06 42.2 c A53
2006-12-20 20:13:52 C 02 42 12.16 -08 07 18.4 c A53
2006-12-20 20:18:20 C 02 42 10.14 -08 07 58.9 c A53
2006-12-20 20:30:50 C 02 42 04.70 -08 09 54.5 c A53
2006-12-21 02:39:42 C 02 39 26.25 -09 04 20.4 834
2006-12-21 02:54:49 C 02 39 19.23 -09 06 44.6 834
2006-12-21 03:09:23 C 02 39 12.49 -09 09 03.8 834
2006-12-21 06:32:45 C 02 37 44.05 -09 45 10.3 o 696
2006-12-21 06:34:24 C 02 37 43.22 -09 45 26.5 o 696
2006-12-22 03:45:06 C 02 27 44.24 -13 28 23.4 r 703
2006-12-22 03:57:49 C 02 27 37.04 -13 30 46.0 r 703
2006-12-22 04:09:28 C 02 27 30.49 -13 32 56.7 r 703
2006-12-22 04:21:06 C 02 27 23.90 -13 35 07.4 r 703
2006-12-24 18:28:22 C 01 45 19.51 -27 25 34.8 d A56
2006-12-24 18:36:05 C 01 45 12.26 -27 27 33.3 d A56
2006-12-24 18:37:57 C 01 45 10.53 -27 28 00.9 d A56
2006-12-24 18:40:16 C 01 45 08.33 -27 28 37.3 d A56
2006-12-24 18:43:14 C 01 45 05.62 -27 29 23.2 d A56
2006-12-24 18:46:05 C 01 45 02.87 -27 30 07.0 d A56
2006-12-24 18:50:10 C 01 44 59.15 -27 31 09.0 d A56
2006-12-24 18:53:16 C 01 44 56.21 -27 31 56.7 d A56
2006-12-24 18:58:46 C 01 44 51.08 -27 33 21.2 d A56
2007-07-08 15:28:45 C 16 43 31.76 -19 32 34.4 o D35
2007-07-08 15:32:36 C 16 43 31.60 -19 32 35.1 o D35
2007-07-09 15:14:54 C 16 43 01.76 -19 31 36.1 o D35
2007-07-09 15:24:08 C 16 43 01.57 -19 31 35.1 o D35
2008-09-24 05:56:01 C 00 39 32.74 +08 54 32.4 o 291
2008-09-24 06:01:26 C 00 39 32.41 +08 54 30.3 o 291
2008-09-24 06:06:48 C 00 39 32.11 +08 54 28.3 o 291
2008-10-09 09:00:33 C 00 15 36.103 +06 15 10.44 645
2008-10-09 09:05:19 C 00 15 35.756 +06 15 08.34 645
2009-05-15 03:31:42 C 08 39 36.71 +15 19 13.9 o 291
2009-05-15 03:37:11 C 08 39 38.14 +15 19 09.5 o 291
2009-05-15 03:55:49 C 08 39 43.19 +15 18 52.5 o 291
2009-05-15 04:01:23 C 08 39 44.67 +15 18 47.6 o 291
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)