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
2004-09-20 20:40:33 C 17 41 31.70 +53 20 34.6 c 938
2004-09-21 19:30:58 C 17 45 52.12 +53 24 34.6 c J92
2004-09-21 19:35:00 C 17 45 52.81 +53 24 35.5 c J92
2004-09-21 19:39:12 C 17 45 53.60 +53 24 36.0 c J92
2004-09-21 19:43:11 C 17 45 54.31 +53 24 36.6 c J92
2004-09-21 20:09:49 C 17 45 59.17 +53 24 39.7 c J92
2004-09-21 20:19:00 C 17 46 00.85 +53 24 51.6 c 938
2004-09-21 20:34:32 C 17 46 03.80 +53 24 42.4 c J92
2004-09-21 20:48:14 C 17 46 06.06 +53 24 54.5 c 938
2004-09-22 19:17:25 C 17 50 39.16 +53 28 32.2 o 160
2004-09-22 19:18:16 C 17 50 39.36 +53 28 31.1 o 160
2004-09-22 19:22:28 C 17 50 40.04 +53 28 32.7 o 160
2004-09-22 19:22:54 C 17 50 40.15 +53 28 33.3 o 160
2004-09-22 19:23:19 C 17 50 40.22 +53 28 33.1 o 160
2004-09-22 19:23:45 C 17 50 40.29 +53 28 32.5 o 160
2004-09-24 21:04:02 C 18 01 47.15 +53 34 23.3 o 084
2004-09-25 19:07:06 C 18 07 16.43 +53 36 15.0 o 084
2004-09-27 19:15:13 C 18 20 34.23 +53 36 49.7 o 160
2004-09-27 19:15:39 C 18 20 34.31 +53 36 49.7 o 160
2004-09-27 19:16:07 C 18 20 34.48 +53 36 49.5 o 160
2004-09-27 19:16:33 C 18 20 34.59 +53 36 49.7 o 160
2004-09-27 19:16:59 C 18 20 34.70 +53 36 49.6 o 160
2004-09-27 19:17:27 C 18 20 34.84 +53 36 49.5 o 160
2004-09-27 19:17:53 C 18 20 35.00 +53 36 49.7 o 160
2004-09-27 19:18:44 C 18 20 35.19 +53 36 49.5 o 160
2004-09-27 19:19:53 C 18 20 35.51 +53 36 49.1 o 160
2004-09-27 19:20:44 C 18 20 35.75 +53 36 49.1 o 160
2004-09-27 19:21:08 C 18 20 35.85 +53 36 49.2 o 160
2004-09-27 19:21:34 C 18 20 36.01 +53 36 49.0 o 160
2004-09-27 19:21:59 C 18 20 36.12 +53 36 48.9 o 160
2004-09-27 19:22:25 C 18 20 36.24 +53 36 48.9 o 160
2004-09-27 19:22:51 C 18 20 36.36 +53 36 48.9 o 160
2004-09-27 19:23:15 C 18 20 36.54 +53 36 48.9 o 160
2004-09-27 19:23:43 C 18 20 36.58 +53 36 48.9 o 160
2004-09-27 19:24:23 C 18 20 36.83 +53 36 48.7 o 160
2004-09-27 19:24:48 C 18 20 36.91 +53 36 48.6 o 160
2004-09-27 19:25:14 C 18 20 37.11 +53 36 48.7 o 160
2004-09-27 19:25:40 C 18 20 37.17 +53 36 48.4 o 160
2004-09-27 19:26:04 C 18 20 37.18 +53 36 48.1 o 160
2004-09-27 19:26:43 C 18 20 37.41 +53 36 48.1 o 160
2004-09-27 19:27:09 C 18 20 37.62 +53 36 48.1 o 160
2004-09-27 19:27:35 C 18 20 37.67 +53 36 47.8 o 160
2004-09-27 19:28:01 C 18 20 37.82 +53 36 48.2 o 160
2004-09-27 19:28:29 C 18 20 37.94 +53 36 48.3 o 160
2004-09-28 21:29:15 C 18 28 40.19 +53 34 03.9 o A13
2004-09-28 21:31:44 C 18 28 40.98 +53 34 03.2 o A13
2004-09-28 21:34:10 C 18 28 41.77 +53 34 02.7 o A13
2004-09-28 21:36:36 C 18 28 42.51 +53 34 01.8 o A13
2004-09-28 21:39:02 C 18 28 43.30 +53 34 01.3 o A13
2004-09-30 20:58:40 C 18 45 12.93 +53 22 36.3 o A13
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)