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
2006-10-23 10:28:12 C 04 09 55.54 +23 39 32.4 c 691
2006-10-23 10:53:23 C 04 09 55.99 +23 39 32.2 c 691
2006-10-23 11:18:36 C 04 09 56.52 +23 39 31.7 c 691
2006-11-10 05:18:47 C 04 13 30.21 +22 54 33.3 c 691
2006-11-10 05:43:43 C 04 13 29.79 +22 54 27.6 c 691
2006-11-10 06:08:45 C 04 13 29.46 +22 54 22.2 c 691
2006-11-11 07:56:56 C 04 13 15.34 +22 48 03.7 r 703
2006-11-11 08:09:33 C 04 13 15.13 +22 47 59.7 r 703
2006-11-11 08:22:10 C 04 13 14.84 +22 47 56.9 r 703
2006-11-11 08:34:44 C 04 13 14.62 +22 47 53.3 r 703
2006-11-15 07:58:02 C 04 11 53.89 +22 19 11.1 c 691
2006-11-15 08:23:09 C 04 11 53.20 +22 19 02.4 c 691
2006-11-15 08:48:09 C 04 11 52.53 +22 18 53.6 c 691
2006-11-17 06:08:21 C 04 10 56.77 +22 01 53.2 18.2 c 704
2006-11-17 06:26:11 C 04 10 56.19 +22 01 46.2 18.5 c 704
2006-11-17 06:44:09 C 04 10 55.66 +22 01 40.2 19.2 c 704
2006-11-18 01:08:43 C 04 10 28.10 +21 54 01.8 r J75
2006-11-18 01:14:07 C 04 10 27.95 +21 53 59.7 r J75
2006-11-18 01:19:24 C 04 10 27.77 +21 53 57.1 r J75
2006-11-18 01:24:47 C 04 10 27.59 +21 53 54.7 r J75
2006-11-18 01:30:04 C 04 10 27.41 +21 53 52.4 r J75
2006-11-18 01:35:21 C 04 10 27.21 +21 53 50.1 r J75
2006-11-18 01:40:54 C 04 10 27.03 +21 53 48.1 r J75
2006-11-18 01:46:18 C 04 10 26.81 +21 53 45.6 r J75
2006-11-18 01:51:42 C 04 10 26.67 +21 53 43.4 r J75
2006-11-18 01:57:18 C 04 10 26.52 +21 53 41.0 r J75
2006-11-18 06:32:30 C 04 10 20.64 +21 51 45.9 18.2 c 704
2006-11-18 06:50:22 C 04 10 20.00 +21 51 38.2 18.6 c 704
2006-11-18 07:08:06 C 04 10 19.39 +21 51 30.7 18.3 c 704
2006-11-18 07:25:52 C 04 10 18.76 +21 51 23.4 18.3 c 704
2006-11-18 07:43:37 C 04 10 18.17 +21 51 15.9 18.7 c 704
2006-11-19 00:57:03 C 04 09 50.51 +21 43 34.6 r J75
2006-11-19 01:02:21 C 04 09 50.31 +21 43 32.3 r J75
2006-11-19 01:13:24 C 04 09 49.81 +21 43 25.5 r J75
2006-11-19 01:13:35 C 04 09 49.89 +21 43 26.8 r J75
2006-11-19 01:18:57 C 04 09 49.70 +21 43 24.4 r J75
2006-11-19 01:24:16 C 04 09 49.52 +21 43 22.1 r J75
2006-11-19 01:29:32 C 04 09 49.33 +21 43 19.4 r J75
2006-11-19 01:29:35 C 04 09 49.16 +21 43 16.3 r J75
2006-11-19 01:34:59 C 04 09 49.11 +21 43 16.9 r J75
2006-11-19 01:40:26 C 04 09 48.94 +21 43 14.3 r J75
2006-11-19 01:46:06 C 04 09 48.74 +21 43 11.5 r J75
2006-11-19 01:51:31 C 04 09 48.55 +21 43 09.1 r J75
2006-11-19 01:57:00 C 04 09 48.36 +21 43 06.7 r J75
2006-11-19 02:02:24 C 04 09 48.14 +21 43 03.6 r J75
2006-11-19 02:07:52 C 04 09 47.93 +21 43 00.8 r J75
2006-11-19 02:13:22 C 04 09 47.77 +21 42 58.5 r J75
2006-11-19 02:18:44 C 04 09 47.56 +21 42 55.9 r J75
2006-11-19 02:24:10 C 04 09 47.37 +21 42 53.2 r J75
2006-11-19 02:29:30 C 04 09 47.17 +21 42 50.8 r J75
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)