162181 (1999 LF6)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2805915348 ± 2.00e+00
Semi-major axis (a)1.4095997620 AU ± 3.00e+00
Inclination (i)18.94327964° ± 4.00e+00
Long. of Asc. Node (Ω)208.49351782° ± 5.00e+00
Arg. of Perihelion (ω)140.87505613° ± 6.00e+00
Mean Anomaly (M)237.23721707° ± 1.11e-05
Mean Motion (n)0.5889366064°/day ± 1.88e+00
Perihelion dist (q)1.01407800 AU ± 3.55e+00
Aphelion dist (Q)1.80512152 AU ± 4.77e+00
Orbital Period1.67356940 yr ± 5.34e+00
NGA Modelr2
A2-1.83588269e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.20
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-27
RMS Residual0.108″
Uncertainty0
Orbit TypeApollo
MOID0.062703 AU
Observations Used1775
Gaia Obs Used33
Oppositions15
Arc Total1979-2017
First Observation Used1979-12-20
Last Observation Used2025-01-11
Observations (1908)
Date Type RA Dec Mag Band Observatory
2004-10-08 20:40:58 C 20 23 10.11 +49 01 08.6 c A32
2004-10-08 20:49:05 C 20 23 15.28 +49 00 42.9 c A32
2004-10-08 20:53:57 C 20 23 18.34 +49 00 27.9 c A32
2004-10-09 03:06:00 C 20 27 21.92 +48 41 27.0 o 932
2004-10-09 03:17:59 C 20 27 29.64 +48 40 46.8 o 932
2004-10-09 03:27:00 C 20 27 35.43 +48 40 16.6 o 932
2004-10-11 19:00:27 C 21 12 12.61 +44 15 13.3 c 639
2004-10-11 19:03:37 C 21 12 14.73 +44 14 57.4 c 639
2004-10-11 19:06:47 C 21 12 17.10 +44 14 39.7 c 639
2004-10-11 19:10:55 C 21 12 19.81 +44 14 19.1 c 639
2004-10-11 19:16:08 C 21 12 23.57 +44 13 50.7 c 639
2004-10-11 19:19:39 C 21 12 26.08 +44 13 32.2 c 639
2004-10-11 19:26:47 C 21 12 31.06 +44 12 54.9 c 639
2004-10-11 19:32:52 C 21 12 35.40 +44 12 22.3 c 639
2004-10-11 19:37:03 C 21 12 38.77 +44 11 54.6 c A32
2004-10-11 19:37:10 C 21 12 38.34 +44 11 59.6 c 639
2004-10-11 19:38:40 C 21 12 39.91 +44 11 46.0 c A32
2004-10-11 19:40:17 C 21 12 41.05 +44 11 37.2 c A32
2004-10-11 19:43:33 C 21 12 43.35 +44 11 20.0 c A32
2004-10-11 19:45:59 C 21 12 44.64 +44 11 12.5 c 639
2004-10-11 19:56:14 C 21 12 51.83 +44 10 17.9 c 639
2004-10-11 23:09:52 C 21 15 10.24 +43 52 18.1 o 084
2004-10-12 18:50:29 C 21 29 46.09 +41 59 15.8 c 639
2004-10-12 18:53:41 C 21 29 48.42 +41 58 55.9 c 639
2004-10-12 18:58:38 C 21 29 51.89 +41 58 25.5 c 639
2004-10-12 19:04:08 C 21 29 55.87 +41 57 51.7 c 639
2004-10-12 19:11:40 C 21 30 01.27 +41 57 05.0 c 639
2004-10-12 19:17:11 C 21 30 05.18 +41 56 30.9 c 639
2004-10-12 19:23:21 C 21 30 09.63 +41 55 52.5 c 639
2004-10-12 19:25:05 C 21 30 13.63 +41 56 00.8 r 938
2004-10-12 19:25:51 C 21 30 13.29 +41 55 52.1 c J81
2004-10-12 19:27:34 C 21 30 15.37 +41 55 45.3 r 938
2004-10-12 19:29:35 C 21 30 15.94 +41 55 28.9 c J81
2004-10-12 19:30:05 C 21 30 17.17 +41 55 30.4 r 938
2004-10-12 19:30:53 C 21 30 14.99 +41 55 05.9 c 639
2004-10-12 19:33:25 C 21 30 18.65 +41 55 05.1 c J81
2004-10-12 19:37:23 C 21 30 21.47 +41 54 41.1 c J81
2004-10-12 20:53:26 C 21 31 16.31 +41 46 54.0 r 938
2004-10-12 20:55:57 C 21 31 18.07 +41 46 38.7 r 938
2004-10-12 20:58:26 C 21 31 19.86 +41 46 23.0 r 938
2004-10-14 12:57:49 C 22 00 59.80 +37 04 37.7 m 379
2004-10-14 13:05:52 C 22 01 05.51 +37 03 32.8 m 379
2004-10-15 10:24:43 C 22 16 50.78 +34 07 40.3 m 379
2004-10-15 10:36:16 C 22 16 58.86 +34 06 00.7 m 379
2004-10-15 11:01:12 C 22 17 16.18 +34 02 25.6 m 379
2004-10-15 11:02:50 C 22 17 17.30 +34 02 11.6 m 379
2004-10-15 11:04:30 C 22 17 18.43 +34 01 57.3 m 379
2004-10-15 12:23:26 C 22 18 12.95 +33 50 27.7 m 355
2004-10-15 12:25:35 C 22 18 14.51 +33 50 08.8 m 355
2004-10-15 12:27:10 C 22 18 15.60 +33 49 54.7 m 355
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2004-10-18 01:08:00 70782890.01 2 us 2380 -1 -1
2004-10-21 03:11:00 73032657.4 1.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)