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
2013-09-17 07:16:01 C 01 27 50.91 +08 30 35.4 P U82
2013-09-17 07:34:05 C 01 27 58.90 +08 31 52.0 P U82
2013-09-17 07:52:52 C 01 28 07.27 +08 33 11.1 P U82
2013-09-17 07:57:23 C 01 28 09.25 +08 33 30.1 P U82
2013-09-17 08:30:14 C 01 28 21.76 +08 35 48.6 q H45
2013-09-17 08:31:31 C 01 28 22.29 +08 35 53.8 q H45
2013-09-17 08:32:42 C 01 28 22.84 +08 35 59.0 q H45
2013-09-17 08:33:38 C 01 28 23.25 +08 36 02.8 q H45
2013-09-17 08:36:08 C 01 28 24.36 +08 36 13.4 q H45
2013-09-17 08:37:31 C 01 28 24.98 +08 36 19.3 q H45
2013-09-17 08:38:24 C 01 28 25.38 +08 36 23.0 q H45
2013-09-17 08:39:50 C 01 28 26.00 +08 36 29.1 q H45
2013-09-17 22:35:30 C 01 35 24.59 +09 38 52.2 q K48
2013-09-17 22:38:34 C 01 35 26.18 +09 39 07.2 q K48
2013-09-17 22:41:40 C 01 35 27.76 +09 39 21.7 q K48
2013-09-17 22:44:47 C 01 35 29.33 +09 39 36.6 q K48
2013-09-17 22:47:52 C 01 35 30.94 +09 39 51.3 q K48
2013-09-17 23:32:23 C 01 35 53.91 +09 43 25.0 c A24
2013-09-17 23:33:25 C 01 35 54.57 +09 43 30.6 c A24
2013-09-18 05:53:19 C 01 39 26.51 +10 14 57.3 P U82
2013-09-18 06:18:31 C 01 39 40.57 +10 17 07.9 P U82
2013-09-18 06:23:02 C 01 39 43.02 +10 17 30.9 P U82
2013-09-18 06:43:52 C 01 39 54.66 +10 19 18.5 P U82
2013-09-18 07:06:27 C 01 40 07.22 +10 21 15.6 P U82
2013-09-18 07:30:27 C 01 40 20.57 +10 23 19.7 P U82
2013-09-18 07:34:58 C 01 40 23.07 +10 23 42.7 P U82
2013-09-19 05:58:30 C 01 54 57.64 +12 31 03.1 P U82
2013-09-19 06:13:02 C 01 55 08.07 +12 32 35.8 P U82
2013-09-19 06:25:36 C 01 55 16.97 +12 33 54.8 P U82
2013-09-19 06:41:13 C 01 55 28.18 +12 35 34.5 P U82
2013-09-19 06:53:47 C 01 55 37.17 +12 36 55.0 P U82
2013-09-20 23:51:26 C 02 33 58.55 +17 47 46.7 q 160
2013-09-20 23:52:53 C 02 34 00.21 +17 47 59.5 q 160
2013-09-20 23:54:19 C 02 34 01.90 +17 48 12.7 q 160
2013-09-20 23:55:45 C 02 34 03.56 +17 48 25.9 q 160
2013-09-20 23:57:13 C 02 34 05.23 +17 48 38.9 q 160
2013-09-22 00:52:58 C 03 08 40.44 +21 52 19.2 q 160
2013-09-22 00:55:45 C 03 08 44.83 +21 52 49.4 q 160
2013-09-22 00:58:45 C 03 08 49.57 +21 53 20.8 q 160
2013-09-23 07:00:58 C 04 07 20.71 +27 16 09.4 P U82
2013-09-23 07:36:01 C 04 08 40.51 +27 22 24.1 P U82
2013-09-23 08:00:10 C 04 09 35.65 +27 26 41.8 P U82
2013-09-23 09:05:36 C 04 12 05.69 +27 38 13.2 P U82
2013-09-23 10:12:59 C 04 14 41.37 +27 49 55.7 P U82
2013-09-25 00:26:53 C 05 57 59.31 +32 25 43.9 q 160
2013-09-25 00:28:12 C 05 58 03.07 +32 25 48.3 q 160
2013-09-25 00:29:44 C 05 58 07.45 +32 25 53.6 q 160
2013-09-25 00:31:15 C 05 58 11.83 +32 25 58.5 q 160
2013-09-25 00:33:06 C 05 58 17.09 +32 26 05.2 q 160
2014-04-24 00:31:07 C 13 32 32.96 -13 10 10.0 L W84
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)