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
2009-09-15 20:08:28 C 23 20 49.12 -07 04 57.8 c B17
2009-09-15 20:09:31 C 23 20 48.99 -07 04 57.9 c B17
2009-09-15 20:10:33 C 23 20 48.87 -07 04 57.9 c B17
2009-09-15 20:11:36 C 23 20 48.74 -07 04 58.0 c B17
2009-09-15 20:12:40 C 23 20 48.62 -07 04 58.1 c B17
2009-09-17 04:07:07 C 23 17 03.88 -07 07 51.3 r H26
2009-09-17 04:07:35 C 23 17 03.83 -07 07 51.1 r H26
2009-09-17 04:08:04 C 23 17 03.75 -07 07 51.0 r H26
2009-09-17 04:08:31 C 23 17 03.68 -07 07 51.2 r H26
2009-09-17 04:09:00 C 23 17 03.63 -07 07 51.3 r H26
2009-09-17 04:09:27 C 23 17 03.55 -07 07 51.3 r H26
2009-09-17 04:09:57 C 23 17 03.48 -07 07 51.3 r H26
2009-09-17 04:10:24 C 23 17 03.43 -07 07 51.4 r H26
2009-09-17 04:10:52 C 23 17 03.35 -07 07 51.3 r H26
2009-09-17 04:11:21 C 23 17 03.29 -07 07 51.4 r H26
2009-09-17 04:11:48 C 23 17 03.22 -07 07 51.5 r H26
2009-09-17 04:12:18 C 23 17 03.15 -07 07 51.6 r H26
2009-09-17 04:12:45 C 23 17 03.09 -07 07 51.5 r H26
2009-09-17 04:13:14 C 23 17 03.02 -07 07 51.9 r H26
2009-09-17 04:13:42 C 23 17 02.94 -07 07 51.7 r H26
2009-09-17 04:14:11 C 23 17 02.89 -07 07 51.5 r H26
2009-09-17 04:14:38 C 23 17 02.82 -07 07 51.7 r H26
2009-09-17 04:15:08 C 23 17 02.75 -07 07 51.8 r H26
2009-09-17 04:15:35 C 23 17 02.67 -07 07 51.9 r H26
2009-09-17 04:16:05 C 23 17 02.62 -07 07 52.1 r H26
2009-09-18 03:45:30 C 23 13 45.28 -07 10 05.7 o H26
2009-09-18 03:45:57 C 23 13 45.21 -07 10 05.9 o H26
2009-09-18 03:46:27 C 23 13 45.13 -07 10 05.5 o H26
2009-09-18 03:46:55 C 23 13 45.06 -07 10 05.9 o H26
2009-09-18 03:47:25 C 23 13 44.98 -07 10 05.9 o H26
2009-09-18 03:47:52 C 23 13 44.90 -07 10 05.9 o H26
2009-09-18 03:48:22 C 23 13 44.81 -07 10 05.9 o H26
2009-09-18 20:25:17 C 23 11 04.39 -07 11 46.7 o A76
2009-09-18 20:50:59 C 23 10 59.55 -07 11 49.9 o A76
2009-09-18 21:30:43 C 23 10 52.06 -07 11 52.8 o A76
2009-09-20 06:59:23 C 23 04 17.90 -07 14 58.3 r G96
2009-09-20 07:12:05 C 23 04 14.80 -07 14 59.5 r G96
2009-09-20 07:24:59 C 23 04 11.64 -07 15 00.7 r G96
2009-09-20 07:37:50 C 23 04 08.50 -07 15 01.8 r G96
2009-09-21 05:28:11 C 22 58 48.57 -07 17 09.8 r 703
2009-09-21 05:37:46 C 22 58 45.76 -07 17 10.8 r 703
2009-09-21 05:47:28 C 22 58 42.92 -07 17 11.8 r 703
2009-09-21 05:57:08 C 22 58 40.04 -07 17 12.8 r 703
2009-09-21 06:21:42 C 22 58 32.77 -07 17 15.2 r G96
2009-09-21 06:31:58 C 22 58 29.74 -07 17 16.1 r G96
2009-09-21 06:42:21 C 22 58 26.65 -07 17 17.1 r G96
2009-09-21 06:52:24 C 22 58 23.66 -07 17 18.0 r G96
2009-09-21 12:01:59 C 22 56 53.55 -07 17 27.9 v F65
2009-09-21 12:03:14 C 22 56 53.15 -07 17 27.9 v F65
2009-09-21 12:04:17 C 22 56 52.82 -07 17 27.8 v F65
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)