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
2025-09-03 23:57:17 C 00 09 06.070 -01 12 19.19 V M22
2025-09-04 00:01:14 C 00 09 06.168 -01 12 16.78 V M22
2025-09-04 00:09:03 C 00 09 06.322 -01 12 13.32 V M22
2025-09-04 00:58:43 C 00 09 07.318 -01 11 49.56 V M22
2025-09-10 22:29:30 C 00 14 34.826 +00 30 47.88 V R17
2025-09-10 22:49:29 C 00 14 35.496 +00 31 04.58 V R17
2025-09-10 23:09:22 C 00 14 36.115 +00 31 21.14 V R17
2025-09-10 23:29:18 C 00 14 36.780 +00 31 38.03 V R17
2025-09-11 04:15:28 B 00 14 47.69 +00 35 30.9 Z W37
2025-09-11 04:59:06 B 00 14 49.07 +00 36 08.7 Z W37
2025-09-11 05:40:43 B 00 14 50.41 +00 36 44.5 Z W37
2025-09-11 21:38:39 B 00 15 30.30 +00 50 54.5 X L76
2025-09-11 21:44:49 B 00 15 30.50 +00 51 00.6 X L76
2025-09-11 21:50:59 B 00 15 30.72 +00 51 06.0 X L76
2025-09-11 21:57:10 B 00 15 30.93 +00 51 11.7 X L76
2025-09-11 22:03:20 B 00 15 31.11 +00 51 17.5 X L76
2025-09-11 22:08:32 C 00 15 31.30 +00 51 23.2 X C40
2025-09-11 22:10:09 C 00 15 31.38 +00 51 24.9 X C40
2025-09-11 22:11:45 C 00 15 31.44 +00 51 26.0 X C40
2025-09-11 22:13:22 C 00 15 31.50 +00 51 27.9 X C40
2025-09-11 22:14:57 C 00 15 31.52 +00 51 29.2 X C40
2025-09-11 22:16:33 C 00 15 31.62 +00 51 30.6 X C40
2025-09-11 22:18:10 C 00 15 31.67 +00 51 32.0 X C40
2025-09-11 22:19:47 C 00 15 31.72 +00 51 33.9 X C40
2025-09-11 22:24:18 C 00 15 31.87 +00 51 38.1 X C40
2025-09-12 04:40:08 B 00 15 49.00 +00 57 31.5 Z W37
2025-09-12 05:29:25 B 00 15 50.72 +00 58 18.4 Z W37
2025-09-12 06:19:43 B 00 15 52.42 +00 59 06.5 Z W37
2025-09-12 23:01:19 B 00 16 37.53 +01 15 41.2 X L76
2025-09-12 23:07:32 B 00 16 37.77 +01 15 47.8 X L76
2025-09-12 23:13:46 B 00 16 38.01 +01 15 54.2 X L76
2025-09-12 23:19:59 B 00 16 38.22 +01 16 00.7 X L76
2025-09-12 23:26:13 B 00 16 38.49 +01 16 07.0 X L76
2025-09-13 20:32:10 C 00 17 42.05 +01 39 10.1 X C40
2025-09-13 20:34:35 C 00 17 42.16 +01 39 12.7 X C40
2025-09-13 20:37:00 C 00 17 42.26 +01 39 15.8 X C40
2025-09-13 20:39:24 C 00 17 42.35 +01 39 18.3 X C40
2025-09-13 20:41:48 C 00 17 42.45 +01 39 21.2 X C40
2025-09-13 20:44:13 C 00 17 42.55 +01 39 24.0 X C40
2025-09-13 20:46:37 C 00 17 42.66 +01 39 26.6 X C40
2025-09-13 20:49:01 C 00 17 42.75 +01 39 29.7 X C40
2025-09-13 20:51:20 C 00 17 42.86 +01 39 32.1 X C40
2025-09-13 20:53:32 C 00 17 42.95 +01 39 34.6 X C40
2025-09-13 20:55:45 C 00 17 43.03 +01 39 37.0 X C40
2025-09-13 20:57:58 C 00 17 43.12 +01 39 39.8 X C40
2025-09-14 07:18:25 C 00 18 15.462 +01 52 02.24 V 703
2025-09-14 07:21:45 C 00 18 15.584 +01 52 06.35 V 703
2025-09-14 07:25:05 C 00 18 15.725 +01 52 10.27 V 703
2025-09-14 07:28:25 C 00 18 15.876 +01 52 14.59 V 703
2025-09-14 10:06:18 C 00 18 24.710 +01 55 38.10 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)