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
2002-03-17 09:27:36 C 13 55 51.06 -13 03 13.6 d 291
2002-03-20 11:03:24 C 13 48 44.14 -12 35 27.5 d 291
2002-03-20 11:32:59 C 13 48 41.20 -12 35 15.2 d 291
2002-03-20 12:04:36 C 13 48 38.01 -12 35 03.5 d 291
2002-04-04 09:39:39 C 13 15 25.05 -10 06 14.1 c 644
2002-04-04 09:47:09 C 13 15 24.41 -10 06 10.9 c 644
2002-04-04 09:54:37 C 13 15 23.79 -10 06 07.8 c 644
2005-08-28 12:19:03 C 22 26 09.24 -16 04 52.0 r E12
2005-08-28 12:32:11 C 22 26 07.90 -16 05 00.2 r E12
2005-08-28 12:45:53 C 22 26 06.46 -16 05 06.0 r E12
2005-08-28 13:01:24 C 22 26 04.94 -16 05 15.1 r E14
2005-08-28 13:07:07 C 22 26 04.35 -16 05 18.5 r E14
2005-08-28 13:11:23 C 22 26 03.93 -16 05 21.0 r E14
2005-08-30 06:01:13 C 22 21 57.53 -16 29 12.0 18.6 o 644
2005-08-30 06:10:02 C 22 21 56.55 -16 29 17.2 18.5 o 644
2005-08-30 06:32:47 C 22 21 54.05 -16 29 31.1 18.7 o 644
2005-08-30 06:41:22 C 22 21 53.11 -16 29 35.7 18.0 o 644
2005-08-30 07:07:45 C 22 21 50.17 -16 29 51.7 18.7 o 644
2005-08-30 07:16:21 C 22 21 49.19 -16 29 56.9 18.6 o 644
2005-08-30 07:22:49 C 22 21 48.36 -16 30 01.3 o 699
2005-08-30 07:48:59 C 22 21 45.53 -16 30 16.2 o 699
2005-08-30 08:15:15 C 22 21 42.58 -16 30 31.1 o 699
2005-08-30 08:41:33 C 22 21 39.62 -16 30 47.6 o 699
2005-09-05 05:28:05 C 22 04 20.06 -18 00 54.7 r 703
2005-09-05 05:40:19 C 22 04 18.26 -18 01 02.3 r 703
2005-09-05 06:07:12 C 22 04 14.23 -18 01 22.0 r 703
2005-09-05 06:19:33 C 22 04 12.43 -18 01 30.9 r 703
2005-09-06 21:55:09 C 21 58 20.77 -18 29 10.1 o 151
2005-09-06 21:58:47 C 21 58 20.19 -18 29 13.1 o 151
2005-09-06 22:00:21 C 21 58 19.96 -18 29 14.3 o 151
2005-09-06 22:01:24 C 21 58 19.83 -18 29 15.4 o 151
2005-09-17 03:13:48 C 21 09 44.05 -21 31 43.9 o 644
2005-09-17 03:44:33 C 21 09 36.09 -21 32 07.5 o 644
2005-09-17 04:23:25 C 21 09 26.03 -21 32 37.1 o 644
2005-09-23 13:05:50 C 20 24 52.48 -23 15 03.6 r E19
2005-09-23 13:13:57 C 20 24 49.60 -23 15 06.3 r E19
2005-09-23 13:18:02 C 20 24 47.89 -23 15 09.9 r E19
2005-09-25 03:21:55 C 20 11 32.56 -23 35 58.2 r 703
2005-09-25 03:42:32 C 20 11 24.79 -23 36 08.1 r 703
2005-09-25 03:52:50 C 20 11 20.97 -23 36 12.7 r 703
2005-09-26 02:24:23 C 20 03 02.21 -23 46 18.3 18.3 c 704
2005-09-26 02:39:52 C 20 02 56.13 -23 46 25.1 18.4 c 704
2005-09-26 03:10:36 C 20 02 44.24 -23 46 36.7 18.9 c 704
2005-09-26 03:26:21 C 20 02 38.01 -23 46 44.3 18.5 c 704
2009-07-24 08:08:51 C 23 27 34.66 -07 40 50.5 o H55
2009-07-24 08:33:17 C 23 27 35.35 -07 40 46.9 o H55
2009-07-24 08:55:59 C 23 27 35.94 -07 40 43.2 o H55
2009-08-17 07:01:57 C 23 39 06.04 -06 45 58.9 o 691
2009-08-23 00:27:16 C 23 39 41.63 -06 42 26.2 r A17
2009-08-23 00:44:17 C 23 39 41.55 -06 42 26.0 r A17
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)