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
2004-06-21 07:14:58 C 16 55 59.23 +38 04 02.0 r H41
2004-06-21 07:17:30 C 16 55 59.13 +38 04 06.7 r H41
2004-06-28 22:06:56 C 16 45 46.24 +41 37 00.8 r 240
2004-06-28 22:10:51 C 16 45 46.01 +41 37 04.8 r 240
2004-06-28 22:18:41 C 16 45 45.54 +41 37 12.9 r 240
2004-06-28 22:22:35 C 16 45 45.32 +41 37 16.8 r 240
2004-06-28 23:21:13 C 16 45 41.91 +41 38 13.8 c A32
2004-06-28 23:31:05 C 16 45 41.31 +41 38 23.5 c A32
2004-06-28 23:40:07 C 16 45 40.86 +41 38 33.2 c A32
2004-07-03 22:07:43 C 16 39 41.86 +43 27 51.1 r 170
2004-07-03 22:10:09 C 16 39 41.71 +43 27 52.7 r 170
2004-07-03 22:11:22 C 16 39 41.64 +43 27 53.8 r 170
2004-07-04 22:42:32 C 16 38 32.33 +43 47 54.8 c J92
2004-07-04 22:54:01 C 16 38 31.73 +43 48 03.9 c J92
2004-07-04 23:05:29 C 16 38 31.16 +43 48 12.9 c J92
2004-07-04 23:16:59 C 16 38 30.57 +43 48 21.9 c J92
2004-07-04 23:28:27 C 16 38 29.98 +43 48 31.3 c J92
2004-07-04 23:47:04 C 16 38 29.02 +43 48 45.5 c J92
2004-07-05 00:00:35 C 16 38 28.34 +43 48 56.1 c J92
2004-07-05 00:12:10 C 16 38 27.75 +43 49 05.0 c J92
2004-07-05 00:23:37 C 16 38 27.15 +43 49 14.0 c J92
2004-07-05 00:35:06 C 16 38 26.58 +43 49 22.8 c J92
2004-07-05 00:49:12 C 16 38 25.87 +43 49 33.8 c J92
2004-07-05 01:05:22 C 16 38 25.07 +43 49 46.1 c J92
2004-07-05 01:21:01 C 16 38 24.32 +43 49 58.3 c J92
2004-07-05 01:36:08 C 16 38 23.53 +43 50 09.9 c J92
2004-07-05 01:51:16 C 16 38 22.79 +43 50 21.3 c J92
2004-07-05 02:06:56 C 16 38 22.02 +43 50 33.1 c J92
2004-07-05 04:09:32 C 16 38 17.43 +43 52 22.6 r H41
2004-07-05 04:12:01 C 16 38 17.28 +43 52 24.4 r H41
2004-07-05 04:15:55 C 16 38 17.07 +43 52 26.7 r H41
2004-07-05 04:18:20 C 16 38 16.91 +43 52 29.4 r H41
2004-07-05 04:20:47 C 16 38 16.84 +43 52 31.9 r H41
2004-07-06 04:33:46 C 16 37 10.78 +44 11 21.9 r H41
2004-07-06 04:36:15 C 16 37 10.56 +44 11 24.2 r H41
2004-07-06 04:38:40 C 16 37 10.45 +44 11 25.9 r H41
2004-07-06 04:41:05 C 16 37 10.35 +44 11 27.8 r H41
2004-07-08 05:49:13 C 16 35 02.45 +44 47 19.8 r H41
2004-07-08 05:52:17 C 16 35 02.31 +44 47 21.9 r H41
2004-07-08 05:54:42 C 16 35 02.20 +44 47 24.0 r H41
2004-07-08 05:57:07 C 16 35 02.19 +44 47 25.5 r H41
2004-07-08 05:59:33 C 16 35 01.96 +44 47 27.1 r H41
2004-07-09 20:49:04 C 16 33 28.72 +45 13 39.3 18.7 r 130
2004-07-09 20:56:02 C 16 33 28.38 +45 13 44.0 18.6 r 130
2004-07-09 21:03:17 C 16 33 28.10 +45 13 48.3 18.7 r 130
2004-07-09 21:10:42 C 16 33 27.76 +45 13 53.7 18.8 r 130
2004-07-19 21:06:59 C 16 26 12.65 +47 20 33.3 o 240
2004-07-19 21:10:54 C 16 26 12.55 +47 20 34.9 o 240
2004-07-19 21:14:48 C 16 26 12.45 +47 20 36.4 o 240
2004-07-19 21:26:31 C 16 26 12.14 +47 20 41.3 o 240
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)