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
2019-12-13 06:18:17 C 06 51 51.49 +06 56 41.9 u H21
2019-12-16 20:47:17 C 07 52 08.49 -04 48 32.4 V C40
2019-12-16 20:49:24 C 07 52 10.39 -04 48 55.1 V C40
2019-12-16 21:17:53 C 07 52 36.08 -04 54 04.9 V C40
2019-12-16 21:18:35 C 07 52 36.71 -04 54 12.7 V C40
2019-12-16 21:26:16 C 07 52 43.65 -04 55 36.4 V C40
2019-12-16 22:57:50 C 07 54 06.34 -05 12 17.3 V C40
2019-12-17 20:06:51 C 08 15 43.80 -09 18 15.8 V C40
2019-12-17 20:08:59 C 08 15 46.08 -09 18 41.9 V C40
2019-12-17 20:12:10 C 08 15 49.49 -09 19 21.4 V C40
2019-12-17 20:22:10 C 08 16 00.19 -09 21 24.9 V C40
2019-12-17 23:23:16 C 08 19 14.22 -09 58 55.3 V C40
2019-12-17 23:24:51 C 08 19 15.93 -09 59 14.9 V C40
2019-12-17 23:26:27 C 08 19 17.65 -09 59 34.8 V C40
2019-12-17 23:26:59 C 08 19 18.23 -09 59 41.5 V C40
2019-12-17 23:29:07 C 08 19 20.51 -10 00 08.1 V C40
2019-12-17 23:35:37 C 08 19 27.50 -10 01 29.1 V C40
2019-12-17 23:38:49 C 08 19 30.94 -10 02 09.0 V C40
2019-12-17 23:39:21 C 08 19 31.52 -10 02 15.6 V C40
2019-12-17 23:39:52 C 08 19 32.08 -10 02 22.1 V C40
2019-12-17 23:40:24 C 08 19 32.65 -10 02 28.7 V C40
2019-12-17 23:43:56 C 08 19 36.46 -10 03 12.9 V C40
2019-12-17 23:49:16 C 08 19 42.20 -10 04 19.4 V C40
2019-12-18 13:39:43 C 08 36 00.49 -12 56 48.6 c 474
2019-12-18 13:42:36 C 08 36 03.93 -12 57 26.7 c 474
2019-12-18 13:45:30 C 08 36 07.34 -12 58 04.8 c 474
2019-12-18 13:49:50 C 08 36 12.50 -12 59 02.0 c 474
2019-12-22 13:09:32 C 11 00 47.03 -32 08 19.5 V 474
2019-12-22 13:10:58 C 11 00 49.36 -32 08 31.5 V 474
2019-12-22 13:12:23 C 11 00 51.68 -32 08 44.0 V 474
2021-10-02 07:30:42 C 00 39 10.490 +08 46 43.10 U F52
2021-10-02 07:47:08 C 00 39 09.363 +08 46 36.14 U F52
2021-10-02 08:03:30 C 00 39 08.240 +08 46 28.92 U F52
2021-10-02 08:19:58 C 00 39 07.098 +08 46 21.83 U F52
2021-10-26 06:55:20 C 00 00 32.032 +04 03 17.83 U F52
2021-10-26 07:12:03 C 00 00 31.006 +04 03 09.60 U F52
2021-10-26 07:28:45 C 00 00 29.996 +04 03 01.50 U F52
2021-10-30 06:46:55 C 23 55 11.822 +03 18 01.58 U F51
2021-10-30 07:05:15 C 23 55 10.812 +03 17 52.97 U F51
2021-10-30 07:23:39 C 23 55 09.809 +03 17 44.83 U F51
2021-11-07 04:56:54 C 23 46 36.048 +01 58 44.13 U F52
2021-11-07 05:14:14 C 23 46 35.370 +01 58 37.72 U F52
2021-11-07 05:31:35 C 23 46 34.690 +01 58 31.62 U F52
2022-05-26 03:50:26 C 10 10 37.542 +08 50 34.94 V G96
2022-05-26 04:00:06 C 10 10 39.997 +08 50 24.50 V G96
2022-05-26 04:08:18 C 10 10 42.035 +08 50 14.39 V G96
2022-05-26 04:16:29 C 10 10 44.094 +08 50 03.98 V G96
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)