152664 (1998 FW4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7139855060 ± 2.00e+00
Semi-major axis (a)2.5201663589 AU ± 3.00e+00
Inclination (i)3.41335582° ± 4.00e+00
Long. of Asc. Node (Ω)353.53418508° ± 5.00e+00
Arg. of Perihelion (ω)85.60702097° ± 6.00e+00
Mean Anomaly (M)2.25437777° ± 1.26e-07
Mean Motion (n)0.2463590162°/day ± 4.40e-01
Perihelion dist (q)0.72080411 AU ± 5.11e+00
Aphelion dist (Q)4.31952861 AU ± 7.20e+00
Orbital Period4.00077212 yr ± 7.14e+00
NGA Modelr2
A21.90267885e-06 AU/d²
Physical Parameters
H (abs. magnitude)19.70
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.198″
Uncertainty0
Orbit TypeApollo
MOID3.305540 AU
Observations Used841
Oppositions23
Arc Total1994-2025
First Observation Used1994-03-09
Last Observation Used2025-10-01
Observations (956)
Date Type RA Dec Mag Band Observatory
2009-09-21 12:27:47 C 22 56 45.60 -07 17 29.3 v F65
2009-09-21 12:28:44 C 22 56 45.32 -07 17 29.2 v F65
2009-09-21 20:36:48 C 22 54 25.45 -07 18 54.9 r A17
2009-09-21 20:56:48 C 22 54 18.85 -07 18 57.0 r A17
2009-09-21 21:18:09 C 22 54 11.75 -07 18 59.0 r A17
2009-09-22 18:52:11 C 22 46 39.65 -07 20 44.5 c B17
2009-09-22 18:52:24 C 22 46 39.56 -07 20 44.7 c B17
2009-09-22 19:19:25 C 22 46 28.37 -07 20 47.2 c B17
2009-09-22 19:20:23 C 22 46 27.98 -07 20 47.4 c B17
2009-09-22 19:21:21 C 22 46 27.57 -07 20 47.4 c B17
2009-09-22 19:22:19 C 22 46 27.17 -07 20 47.5 c B17
2009-09-22 19:23:17 C 22 46 26.78 -07 20 47.6 c B17
2009-09-22 19:24:15 C 22 46 26.36 -07 20 47.7 c B17
2009-09-22 19:25:13 C 22 46 25.97 -07 20 47.7 c B17
2009-09-22 19:26:11 C 22 46 25.56 -07 20 47.9 c B17
2009-09-22 19:27:09 C 22 46 25.15 -07 20 47.9 c B17
2009-09-22 19:28:07 C 22 46 24.76 -07 20 48.0 c B17
2009-09-22 19:29:05 C 22 46 24.35 -07 20 48.1 c B17
2009-09-22 19:30:03 C 22 46 23.95 -07 20 48.2 c B17
2009-09-22 19:31:01 C 22 46 23.55 -07 20 48.3 c B17
2009-09-22 19:31:59 C 22 46 23.15 -07 20 48.4 c B17
2009-09-22 19:32:57 C 22 46 22.73 -07 20 48.4 c B17
2009-09-22 19:33:55 C 22 46 22.34 -07 20 48.5 c B17
2009-09-22 19:34:53 C 22 46 21.94 -07 20 48.6 c B17
2009-09-22 19:35:51 C 22 46 21.54 -07 20 48.7 c B17
2009-09-22 19:36:49 C 22 46 21.14 -07 20 48.7 c B17
2009-09-22 19:37:47 C 22 46 20.72 -07 20 48.8 c B17
2009-09-22 19:38:45 C 22 46 20.32 -07 20 48.8 c B17
2009-09-22 19:39:43 C 22 46 19.92 -07 20 49.0 c B17
2009-09-22 19:41:39 C 22 46 19.11 -07 20 49.2 c B17
2009-09-22 19:42:37 C 22 46 18.70 -07 20 49.3 c B17
2009-09-22 19:43:35 C 22 46 18.31 -07 20 49.3 c B17
2009-09-22 19:44:33 C 22 46 17.89 -07 20 49.4 c B17
2009-09-22 19:45:31 C 22 46 17.49 -07 20 49.5 c B17
2009-09-22 19:46:29 C 22 46 17.09 -07 20 49.6 c B17
2009-09-22 19:47:27 C 22 46 16.68 -07 20 49.7 c B17
2009-09-22 19:48:25 C 22 46 16.28 -07 20 49.8 c B17
2009-09-22 19:49:23 C 22 46 15.87 -07 20 49.8 c B17
2009-09-22 19:50:21 C 22 46 15.46 -07 20 49.9 c B17
2009-09-22 19:51:19 C 22 46 15.07 -07 20 50.0 c B17
2009-09-22 19:52:17 C 22 46 14.66 -07 20 50.0 c B17
2009-09-22 19:53:15 C 22 46 14.26 -07 20 50.1 c B17
2009-09-22 19:54:13 C 22 46 13.85 -07 20 50.2 c B17
2009-09-22 19:55:11 C 22 46 13.45 -07 20 50.2 c B17
2009-09-22 19:56:09 C 22 46 13.05 -07 20 50.3 c B17
2009-09-22 19:57:07 C 22 46 12.64 -07 20 50.4 c B17
2009-09-22 19:58:05 C 22 46 12.22 -07 20 50.4 c B17
2009-09-22 19:59:03 C 22 46 11.82 -07 20 50.5 c B17
2009-09-22 20:00:01 C 22 46 11.42 -07 20 50.6 c B17
2009-09-22 20:00:59 C 22 46 11.01 -07 20 50.6 c B17
Radar Observations (18)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2009-09-26 01:40:00 910321.677 0.5 Hz 8560 -14 -14
2009-09-26 02:10:00 44182242.19 10 us 8560 -14 -14
2009-09-26 03:10:00 43802150.6 1 us 8560 -14 -14
2009-09-27 03:20:00 806842.646 0.5 Hz 8560 -14 -14
2009-09-27 04:00:00 34950466.93 2 us 8560 -14 -14
2009-09-28 04:40:00 27537725.2 0.5 us 8560 -14 -14
2009-09-30 19:30:00 24549433.17 1 us 2380 -1 -1
2009-10-01 18:20:00 30182452.629 2 us 2380 -1 -1
2013-09-22 05:40:00 641166.896 0.5 Hz 8560 -14 -14
2013-09-22 06:10:00 53372699.47 3 us 8560 -14 -14
2013-09-22 06:40:00 632332.349 0.5 Hz 8560 -14 -14
2013-09-22 06:44:00 53203613.81 0.5 us 2380 -1 -1
2013-09-22 06:44:00 172287.5991 0.075 Hz 2380 -1 -1
2013-09-22 07:10:00 627441.956 0.4 Hz 8560 -14 -14
2013-09-23 08:20:00 404327.022 0.3 Hz 8560 -14 -14
2013-09-23 08:40:00 47691363.58 2 us 8560 -14 -14
2013-09-24 07:20:00 45199563.5 1.5 us 8560 -14 -14
2013-09-26 10:30:00 48835641.89 3 us 8560 -14 -14
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)