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
2021-08-28 11:44:50 C 00 59 34.79 +04 21 40.5 V T05
2021-08-29 11:53:31 C 01 02 35.34 +04 46 25.7 V T05
2021-08-29 11:56:09 C 01 02 35.64 +04 46 29.5 V T05
2021-08-29 12:00:46 C 01 02 36.17 +04 46 34.1 V T05
2021-08-29 12:08:42 C 01 02 37.15 +04 46 41.9 V T05
2021-08-30 10:50:05 C 01 05 37.04 +05 11 22.4 V T08
2021-08-30 11:07:22 C 01 05 39.22 +05 11 41.7 V T08
2021-08-30 11:10:01 C 01 05 39.59 +05 11 44.8 V T08
2021-08-30 11:50:23 C 01 05 44.80 +05 12 30.3 V T08
2021-08-31 10:11:30 C 01 08 52.702 +05 38 18.23 U F52
2021-08-31 10:28:08 C 01 08 54.994 +05 38 38.11 U F52
2021-08-31 10:44:48 C 01 08 57.288 +05 38 58.06 U F52
2021-08-31 11:01:24 C 01 08 59.572 +05 39 17.93 U F52
2021-09-03 04:52:14 C 01 19 22.85 +07 05 14.1 Z W33
2021-09-03 05:05:01 C 01 19 25.00 +07 05 32.4 Z W33
2021-09-03 05:17:40 C 01 19 27.10 +07 05 50.8 Z W33
2021-09-03 08:38:43 C 01 20 01.74 +07 10 41.9 U I41
2021-09-03 08:40:05 C 01 20 01.98 +07 10 43.9 U I41
2021-09-03 09:46:49 C 01 20 13.19 +07 12 21.1 U I41
2021-09-03 09:48:11 C 01 20 13.42 +07 12 23.0 U I41
2021-09-04 12:32:10 C 01 25 06.847 +07 52 58.07 U F51
2021-09-04 12:49:16 C 01 25 09.957 +07 53 25.08 U F51
2021-09-04 13:06:13 C 01 25 13.041 +07 53 51.85 U F51
2021-09-04 13:23:05 C 01 25 16.108 +07 54 18.39 U F51
2021-09-05 11:16:26 C 01 29 37.57 +08 30 05.1 V T05
2021-09-05 11:24:23 C 01 29 39.16 +08 30 18.7 V T05
2021-09-05 11:29:00 C 01 29 40.07 +08 30 26.6 V T05
2021-09-05 11:44:53 C 01 29 43.19 +08 30 53.7 V T05
2021-09-06 09:04:11 C 01 34 16.03 +09 08 09.3 V 703
2021-09-06 09:11:41 C 01 34 17.59 +09 08 22.9 V 703
2021-09-06 09:19:12 C 01 34 19.22 +09 08 37.2 V 703
2021-09-06 09:26:43 C 01 34 20.82 +09 08 50.6 V 703
2021-09-07 11:05:45 C 01 40 18.92 +09 57 32.1 V T08
2021-09-07 11:31:04 C 01 40 24.84 +09 58 22.5 V T08
2021-09-07 11:35:43 C 01 40 25.93 +09 58 31.7 V T08
2021-09-07 11:43:07 C 01 40 27.66 +09 58 46.4 V T08
2021-09-08 10:23:45 C 01 46 14.524 +10 45 21.73 U F52
2021-09-08 10:38:36 C 01 46 18.340 +10 45 53.71 U F52
2021-09-08 10:53:29 C 01 46 22.144 +10 46 25.64 U F52
2021-09-08 11:08:22 C 01 46 25.973 +10 46 57.72 U F52
2021-09-09 08:56:34 C 01 52 29.07 +11 35 16.8 V G96
2021-09-09 09:02:46 C 01 52 30.81 +11 35 31.1 V G96
2021-09-09 09:08:58 C 01 52 32.55 +11 35 45.5 V G96
2021-09-09 09:15:09 C 01 52 34.27 +11 35 59.7 V G96
2021-09-10 09:07:31 C 01 59 51.61 +12 33 24.6 V 703
2021-09-10 09:15:08 C 01 59 53.99 +12 33 44.0 V 703
2021-09-10 09:22:46 C 01 59 56.36 +12 34 02.9 V 703
2021-09-10 09:30:24 C 01 59 58.73 +12 34 22.4 V 703
2021-09-10 11:10:00 C 02 00 31.786 +12 38 40.35 U F52
2021-09-10 11:27:30 C 02 00 37.281 +12 39 25.05 U F52
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)