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
2009-05-15 04:06:59 C 08 39 46.24 +15 18 42.7 o 291
2019-09-28 09:30:06 C 04 03 13.44 +23 21 44.0 V G96
2019-09-28 09:37:32 C 04 03 13.79 +23 21 45.0 V G96
2019-09-28 09:45:00 C 04 03 14.27 +23 21 45.8 V G96
2019-10-05 11:18:12 C 04 13 21.63 +23 46 11.5 o 291
2019-10-05 11:26:48 C 04 13 22.11 +23 46 12.8 o 291
2019-10-05 11:35:25 C 04 13 22.57 +23 46 13.9 o 291
2019-10-08 10:22:10 C 04 17 30.45 +23 54 48.4 V G96
2019-10-08 10:29:40 C 04 17 30.85 +23 54 48.7 V G96
2019-10-08 10:37:10 C 04 17 31.29 +23 54 49.6 V G96
2019-10-08 10:44:41 C 04 17 31.62 +23 54 51.1 V G96
2019-10-09 08:14:34 C 04 18 46.63 +23 57 14.9 o 291
2019-10-09 08:40:27 C 04 18 48.05 +23 57 17.5 o 291
2019-10-09 09:06:24 C 04 18 49.47 +23 57 21.2 o 291
2019-10-23 10:31:41 C 04 37 34.35 +24 21 04.8 V G96
2019-10-23 10:39:09 C 04 37 34.74 +24 21 05.1 V G96
2019-10-23 10:46:37 C 04 37 35.09 +24 21 05.0 V G96
2019-10-23 10:54:05 C 04 37 35.43 +24 21 04.9 V G96
2019-10-28 10:41:19 C 04 43 56.415 +24 21 49.11 U F51
2019-10-28 11:13:31 C 04 43 57.941 +24 21 49.11 U F51
2019-11-02 09:59:49 C 04 50 08.977 +24 17 09.71 U F51
2019-11-02 10:00:44 C 04 50 09.021 +24 17 09.66 U F51
2019-11-02 10:17:20 C 04 50 09.790 +24 17 08.96 U F51
2019-11-02 10:18:15 C 04 50 09.838 +24 17 08.89 U F51
2019-11-02 10:34:53 C 04 50 10.606 +24 17 08.17 U F51
2019-11-02 10:35:48 C 04 50 10.648 +24 17 08.10 U F51
2019-11-02 10:52:29 C 04 50 11.412 +24 17 07.35 U F51
2019-11-02 10:53:25 C 04 50 11.457 +24 17 07.25 U F51
2019-11-05 10:45:59 C 04 53 54.69 +24 11 09.5 V G96
2019-11-05 10:54:37 C 04 53 55.11 +24 11 08.8 V G96
2019-11-05 11:08:13 C 04 53 55.78 +24 11 07.7 V G96
2019-11-07 00:32:50 C 04 55 54.49 +24 06 55.1 V C95
2019-11-07 00:48:08 C 04 55 55.20 +24 06 53.5 V C95
2019-11-07 13:11:06 C 04 56 33.774 +24 05 31.04 U F51
2019-11-07 13:30:54 C 04 56 34.676 +24 05 28.26 U F51
2019-11-07 13:50:41 C 04 56 35.579 +24 05 25.40 U F51
2019-11-07 14:10:28 C 04 56 36.489 +24 05 22.51 U F51
2019-11-20 11:56:44 C 05 14 44.21 +22 47 38.7 V T05
2019-11-20 12:01:28 C 05 14 44.45 +22 47 37.1 V T05
2019-11-20 12:09:24 C 05 14 44.90 +22 47 33.2 V T05
2019-11-20 12:29:39 C 05 14 46.06 +22 47 24.8 V T05
2019-11-20 19:00:41 C 05 15 15.14 +22 44 20.0 q B18
2019-11-20 19:01:49 C 05 15 15.21 +22 44 19.5 q B18
2019-11-20 19:02:57 C 05 15 15.27 +22 44 19.1 q B18
2019-11-20 19:04:04 C 05 15 15.34 +22 44 18.6 q B18
2019-11-20 19:05:13 C 05 15 15.40 +22 44 18.2 q B18
2019-11-20 19:08:40 C 05 15 15.68 +22 44 16.6 q B18
2019-11-23 02:03:45 C 05 19 10.78 +22 18 13.0 q B18
2019-11-23 02:07:09 C 05 19 11.07 +22 18 10.7 q B18
2019-11-23 02:08:17 C 05 19 11.09 +22 18 10.4 q B18
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)