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
2025-09-14 10:10:55 C 00 18 24.905 +01 55 43.82 V T08
2025-09-14 10:15:02 C 00 18 25.070 +01 55 48.86 V T08
2025-09-14 11:01:41 C 00 18 26.950 +01 56 46.61 V T08
2025-09-14 20:51:42 C 00 19 00.47 +02 08 56.3 X C40
2025-09-14 20:54:07 C 00 19 00.59 +02 08 59.4 X C40
2025-09-14 20:56:32 C 00 19 00.71 +02 09 02.6 X C40
2025-09-14 20:58:57 C 00 19 00.82 +02 09 05.7 X C40
2025-09-14 21:01:22 C 00 19 00.94 +02 09 08.8 X C40
2025-09-14 21:03:47 C 00 19 01.04 +02 09 12.0 X C40
2025-09-14 21:06:11 C 00 19 01.16 +02 09 15.1 X C40
2025-09-14 21:08:36 C 00 19 01.27 +02 09 18.1 X C40
2025-09-14 21:10:55 C 00 19 01.37 +02 09 21.2 X C40
2025-09-14 21:13:08 C 00 19 01.48 +02 09 24.3 X C40
2025-09-14 21:15:22 C 00 19 01.58 +02 09 27.2 X C40
2025-09-14 21:17:35 C 00 19 01.69 +02 09 30.0 X C40
2025-09-15 00:18:24 B 00 19 10.19 +02 13 27.0 X L76
2025-09-15 00:23:45 B 00 19 10.44 +02 13 33.5 X L76
2025-09-15 00:29:05 B 00 19 10.67 +02 13 40.9 X L76
2025-09-15 00:34:26 B 00 19 10.95 +02 13 47.8 X L76
2025-09-15 00:39:46 B 00 19 11.22 +02 13 55.2 X L76
2025-09-15 00:45:07 B 00 19 11.48 +02 14 02.1 X L76
2025-09-15 04:27:47 C 00 19 26.861 +02 20 08.88 V W68
2025-09-15 04:54:27 C 00 19 28.080 +02 20 45.38 V W68
2025-09-15 04:57:03 C 00 19 28.202 +02 20 48.66 V W68
2025-09-15 05:17:28 C 00 19 29.124 +02 21 16.70 V W68
2025-09-15 22:05:25 C 00 20 32.50 +02 44 12.9 V G17
2025-09-15 22:10:47 C 00 20 32.80 +02 44 20.8 V G17
2025-09-15 22:14:25 C 00 20 31.69 +02 44 25.9 X C40
2025-09-15 22:16:09 C 00 20 33.08 +02 44 28.7 V G17
2025-09-15 22:16:50 C 00 20 31.82 +02 44 29.5 X C40
2025-09-15 22:19:14 C 00 20 31.94 +02 44 33.2 X C40
2025-09-15 22:21:38 C 00 20 32.07 +02 44 36.8 X C40
2025-09-15 22:24:03 C 00 20 32.20 +02 44 40.4 X C40
2025-09-15 22:28:52 C 00 20 32.46 +02 44 47.6 X C40
2025-09-15 22:31:17 C 00 20 32.59 +02 44 51.3 X C40
2025-09-15 22:33:35 C 00 20 32.70 +02 44 54.8 X C40
2025-09-15 22:35:49 C 00 20 32.82 +02 44 58.1 X C40
2025-09-15 22:38:01 C 00 20 32.94 +02 45 01.4 X C40
2025-09-15 22:40:13 C 00 20 33.06 +02 45 04.7 X C40
2025-09-16 00:21:46 B 00 20 38.53 +02 47 35.6 X L76
2025-09-16 00:25:14 B 00 20 38.74 +02 47 41.3 X L76
2025-09-16 00:28:43 B 00 20 38.94 +02 47 46.6 X L76
2025-09-16 00:32:11 B 00 20 39.14 +02 47 51.8 X L76
2025-09-16 00:35:45 B 00 20 39.35 +02 47 56.9 X L76
2025-09-16 00:39:02 B 00 20 39.55 +02 48 02.3 X L76
2025-09-16 11:14:59 C 00 21 23.730 +03 05 04.29 X F51
2025-09-16 11:59:25 C 00 21 26.098 +03 06 16.46 X F51
2025-09-16 12:16:48 C 00 21 27.028 +03 06 44.58 X F51
2025-09-16 16:18:14 C 00 21 45.866 +03 14 07.04 V P07
2025-09-16 17:28:58 C 00 21 49.750 +03 16 05.48 V P07
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)