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
2021-09-10 11:45:00 C 02 00 42.750 +12 40 09.44 U F52
2021-09-10 12:02:32 C 02 00 48.220 +12 40 53.90 U F52
2021-09-10 13:25:21 C 02 01 14.21 +12 44 24.4 V T05
2021-09-10 14:08:08 C 02 01 27.66 +12 46 12.9 V T05
2021-09-10 14:49:01 C 02 01 40.59 +12 47 56.9 V T05
2021-09-12 11:53:20 C 02 18 04.78 +14 52 31.3 V T08
2021-09-12 11:56:00 C 02 18 05.82 +14 52 39.5 V T08
2021-09-12 11:59:59 C 02 18 07.38 +14 52 51.0 V T08
2021-09-12 12:37:21 C 02 18 21.87 +14 54 43.2 V T08
2021-09-13 08:26:57 C 02 26 44.08 +15 55 44.5 V 703
2021-09-13 08:34:44 C 02 26 47.41 +15 56 09.4 V 703
2021-09-13 08:42:31 C 02 26 50.78 +15 56 33.8 V 703
2021-09-13 08:50:18 C 02 26 54.11 +15 56 59.1 V 703
2021-09-16 09:06:19 C 03 05 09.53 +20 14 04.0 V 703
2021-09-16 09:13:54 C 03 05 14.19 +20 14 33.6 V 703
2021-09-16 09:21:29 C 03 05 18.86 +20 15 03.6 V 703
2021-09-16 09:29:04 C 03 05 23.54 +20 15 33.4 V 703
2021-09-16 22:58:23 C 03 14 12.42 +21 08 22.0 V Z80
2021-09-16 23:05:03 C 03 14 16.89 +21 08 48.6 V Z80
2021-09-16 23:11:43 C 03 14 21.33 +21 09 15.7 V Z80
2021-09-24 09:49:45 S 06 09 30.574 +30 44 53.30 L C51
2021-09-24 11:23:49 S 06 11 21.938 +30 46 06.02 L C51
2022-02-04 14:23:14 C 14 46 58.591 -16 57 22.92 U F52
2022-02-04 14:25:09 C 14 46 58.640 -16 57 23.59 U F52
2022-02-04 14:40:53 C 14 46 58.905 -16 57 26.75 U F52
2022-02-04 14:42:51 C 14 46 58.935 -16 57 27.19 U F52
2022-02-04 14:58:34 C 14 46 59.198 -16 57 30.21 U F52
2022-02-04 15:00:35 C 14 46 59.248 -16 57 30.79 U F52
2025-08-05 13:46:27 C 23 49 08.795 -04 32 03.17 X F51
2025-08-05 14:02:39 C 23 49 09.268 -04 31 59.42 X F51
2025-08-05 14:18:50 C 23 49 09.752 -04 31 55.75 X F51
2025-08-28 17:51:42 C 00 05 05.75 -02 11 31.0 V D29
2025-08-28 18:12:03 C 00 05 06.16 -02 11 24.3 V D29
2025-08-28 18:32:25 C 00 05 06.57 -02 11 17.5 V D29
2025-08-29 22:53:37 C 00 05 51.454 -02 01 12.32 V M22
2025-08-29 22:57:32 C 00 05 51.554 -02 01 11.71 V M22
2025-08-29 23:05:22 C 00 05 51.691 -02 01 08.04 V M22
2025-08-29 23:25:01 C 00 05 52.106 -02 01 01.06 V M22
2025-08-31 22:15:20 C 00 07 06.266 -01 43 43.86 V M22
2025-08-31 23:04:52 C 00 07 07.284 -01 43 24.96 V M22
2025-08-31 23:11:35 C 00 07 07.414 -01 43 22.19 V M22
2025-08-31 23:20:03 C 00 07 07.591 -01 43 18.70 V M22
2025-09-01 23:09:48 C 00 07 46.745 -01 34 13.80 V R17
2025-09-01 23:30:05 C 00 07 47.203 -01 34 05.12 V R17
2025-09-01 23:56:21 C 00 07 47.772 -01 33 54.72 V R17
2025-09-02 00:17:07 C 00 07 48.206 -01 33 46.04 V R17
2025-09-02 09:48:17 C 00 08 03.624 -01 29 43.15 V T08
2025-09-02 10:03:30 C 00 08 03.970 -01 29 37.10 V T08
2025-09-02 10:20:52 C 00 08 04.284 -01 29 30.16 V T08
2025-09-02 10:54:29 C 00 08 04.970 -01 29 15.50 V T08
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)