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
2004-09-30 21:00:35 C 18 45 13.63 +53 22 35.6 o A13
2004-09-30 21:02:26 C 18 45 14.28 +53 22 34.3 o A13
2004-09-30 21:04:07 C 18 45 14.90 +53 22 33.6 o A13
2004-09-30 21:05:57 C 18 45 15.55 +53 22 33.0 o A13
2004-10-01 09:40:34 C 18 50 07.55 +53 17 59.1 o 379
2004-10-01 09:43:52 C 18 50 08.70 +53 17 58.1 o 379
2004-10-01 09:47:11 C 18 50 09.98 +53 17 56.3 o 379
2004-10-01 09:48:49 C 18 50 10.61 +53 17 54.9 o 379
2004-10-01 09:53:47 C 18 50 12.33 +53 17 52.8 o 379
2004-10-01 19:20:50 C 18 53 56.32 +53 12 51.9 o 084
2004-10-03 19:56:51 C 19 15 08.54 +52 39 24.8 d 557
2004-10-03 20:05:25 C 19 15 12.41 +52 39 16.2 d 557
2004-10-03 20:13:59 C 19 15 16.25 +52 39 07.4 d 557
2004-10-04 00:36:00 C 19 17 22.10 +52 35 18.8 o 932
2004-10-04 00:40:59 C 19 17 24.37 +52 35 13.9 o 932
2004-10-04 01:36:00 C 19 17 49.39 +52 34 15.8 o 932
2004-10-04 06:21:24 C 19 20 04.21 +52 29 18.3 c G90
2004-10-04 06:25:56 C 19 20 06.38 +52 29 12.7 c G90
2004-10-04 06:30:29 C 19 20 08.55 +52 29 07.0 c G90
2004-10-05 00:47:59 C 19 29 21.93 +52 08 36.1 o 932
2004-10-05 00:58:59 C 19 29 27.32 +52 08 21.3 o 932
2004-10-05 01:04:01 C 19 29 29.76 +52 08 14.8 o 932
2004-10-05 03:49:00 C 19 30 54.35 +52 04 53.9 c G90
2004-10-05 03:58:07 C 19 30 58.86 +52 04 41.2 c G90
2004-10-06 01:25:00 C 19 42 29.10 +51 33 25.0 o 932
2004-10-06 01:27:59 C 19 42 30.68 +51 33 19.9 o 932
2004-10-06 01:32:00 C 19 42 32.80 +51 33 13.0 o 932
2004-10-06 01:34:00 C 19 42 33.87 +51 33 09.5 o 932
2004-10-06 10:17:23 C 19 47 28.70 +51 18 40.6 m 379
2004-10-06 10:19:01 C 19 47 29.64 +51 18 37.4 m 379
2004-10-06 19:32:09 C 19 52 46.78 +51 01 14.9 c 127
2004-10-06 19:35:11 C 19 52 48.44 +51 01 09.0 c 127
2004-10-06 19:37:18 C 19 52 49.65 +51 01 04.5 c 127
2004-10-06 19:39:50 C 19 52 51.06 +51 00 59.6 c 127
2004-10-07 09:22:30 C 20 01 00.71 +50 33 10.1 m 379
2004-10-07 09:24:08 C 20 01 01.69 +50 33 06.9 m 379
2004-10-07 09:27:26 C 20 01 03.51 +50 32 59.4 m 379
2004-10-07 09:30:44 C 20 01 05.48 +50 32 52.5 m 379
2004-10-07 09:34:03 C 20 01 07.35 +50 32 45.1 m 379
2004-10-07 09:37:21 C 20 01 09.21 +50 32 37.2 m 379
2004-10-07 20:02:57 C 20 07 27.98 +50 07 44.0 o 084
2004-10-07 20:25:03 C 20 07 41.72 +50 07 14.8 c A48
2004-10-07 20:29:12 C 20 07 44.31 +50 07 03.8 c A48
2004-10-07 20:33:21 C 20 07 46.77 +50 06 52.9 c A48
2004-10-07 22:17:07 C 20 08 49.74 +50 02 21.6 c 127
2004-10-07 22:21:44 C 20 08 52.56 +50 02 09.4 c 127
2004-10-07 22:24:46 C 20 08 54.40 +50 02 00.9 c 127
2004-10-07 22:35:38 C 20 09 01.03 +50 01 32.2 c 127
2004-10-07 22:39:59 C 20 09 03.70 +50 01 20.8 c 127
2004-10-08 20:36:06 C 20 23 07.02 +49 01 23.7 c A32
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)