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
2004-07-19 21:30:26 C 16 26 12.02 +47 20 43.0 o 240
2004-07-20 21:35:45 C 16 25 43.57 +47 30 37.2 o 198
2004-07-20 21:48:30 C 16 25 43.26 +47 30 42.0 o 198
2004-07-20 21:58:44 C 16 25 43.02 +47 30 45.7 o 198
2004-07-20 22:16:36 C 16 25 42.59 +47 30 52.5 o 198
2004-07-20 22:31:54 C 16 25 42.22 +47 30 58.2 o 198
2004-07-20 23:10:22 C 16 25 41.28 +47 31 13.8 126
2004-07-20 23:30:18 C 16 25 40.68 +47 31 20.7 126
2004-07-22 21:09:12 C 16 24 56.09 +47 48 58.8 c 113
2004-07-22 21:17:07 C 16 24 55.94 +47 49 01.5 c 113
2004-08-06 22:18:29 C 16 24 55.90 +49 33 01.2 d 941
2004-08-06 22:20:07 C 16 24 55.92 +49 33 01.4 d 941
2004-08-06 22:21:45 C 16 24 55.94 +49 33 01.6 d 941
2004-08-06 22:25:02 C 16 24 55.98 +49 33 02.0 d 941
2004-08-06 22:26:41 C 16 24 56.00 +49 33 02.4 d 941
2004-08-10 20:32:26 C 16 26 37.27 +49 53 36.5 c A30
2004-08-10 20:36:36 C 16 26 37.32 +49 53 36.4 c A30
2004-08-10 20:41:11 C 16 26 37.48 +49 53 37.6 c A30
2004-08-10 20:46:14 C 16 26 37.45 +49 53 38.9 c A30
2004-08-26 03:31:46 C 16 40 04.52 +51 06 19.3 o 699
2004-08-26 03:55:17 C 16 40 05.60 +51 06 23.5 o 699
2004-08-26 04:18:32 C 16 40 06.56 +51 06 26.9 o 699
2004-08-26 04:41:49 C 16 40 07.66 +51 06 30.3 o 699
2004-08-27 03:23:49 C 16 41 21.50 +51 11 09.6 17.8 c 704
2004-08-27 03:38:30 C 16 41 22.17 +51 11 12.0 17.9 c 704
2004-08-27 03:53:10 C 16 41 22.85 +51 11 14.5 18.2 c 704
2004-08-27 04:07:51 C 16 41 23.54 +51 11 17.1 18.0 c 704
2004-08-27 04:22:32 C 16 41 24.20 +51 11 19.3 17.7 c 704
2004-09-20 19:11:21 C 17 41 15.74 +53 20 15.3 o 160
2004-09-20 19:12:41 C 17 41 15.94 +53 20 16.0 o 160
2004-09-20 19:13:06 C 17 41 16.03 +53 20 15.8 o 160
2004-09-20 19:13:58 C 17 41 16.22 +53 20 16.2 o 160
2004-09-20 19:14:48 C 17 41 16.30 +53 20 15.8 o 160
2004-09-20 19:15:15 C 17 41 16.36 +53 20 16.5 o 160
2004-09-20 19:15:39 C 17 41 16.43 +53 20 16.4 o 160
2004-09-20 19:16:31 C 17 41 16.60 +53 20 16.5 o 160
2004-09-20 19:16:59 C 17 41 16.68 +53 20 16.4 o 160
2004-09-20 19:17:27 C 17 41 16.77 +53 20 16.7 o 160
2004-09-20 19:17:53 C 17 41 16.83 +53 20 16.7 o 160
2004-09-20 19:18:45 C 17 41 16.98 +53 20 16.8 o 160
2004-09-20 19:19:10 C 17 41 17.01 +53 20 16.6 o 160
2004-09-20 19:19:36 C 17 41 17.11 +53 20 16.7 o 160
2004-09-20 19:23:47 C 17 41 17.88 +53 20 17.8 o 160
2004-09-20 19:24:13 C 17 41 17.88 +53 20 17.5 o 160
2004-09-20 19:24:39 C 17 41 17.98 +53 20 17.7 o 160
2004-09-20 19:25:05 C 17 41 18.08 +53 20 16.9 o 160
2004-09-20 19:25:33 C 17 41 18.17 +53 20 17.8 o 160
2004-09-20 19:25:59 C 17 41 18.21 +53 20 17.4 o 160
2004-09-20 19:26:27 C 17 41 18.24 +53 20 17.9 o 160
2004-09-20 20:05:00 C 17 41 25.74 +53 20 30.0 c 938
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)