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
2004-05-23 23:12:59 C 17 27 52.21 +17 22 14.2 r 198
2004-05-23 23:21:46 C 17 27 51.96 +17 22 33.4 r 198
2004-05-23 23:48:40 C 17 27 51.28 +17 23 29.3 c J92
2004-05-24 00:36:01 C 17 27 49.86 +17 25 10.2 c J92
2004-05-25 23:50:16 C 17 26 30.25 +19 05 22.1 r A41
2004-05-26 00:38:57 C 17 26 28.57 +19 07 05.1 r A41
2004-05-27 06:33:08 C 17 25 33.05 +20 10 16.7 r H41
2004-05-27 06:37:43 C 17 25 32.84 +20 10 26.3 r H41
2004-05-27 06:40:27 C 17 25 32.78 +20 10 32.6 r H41
2004-05-27 06:43:05 C 17 25 32.64 +20 10 38.4 r H41
2004-05-27 06:45:36 C 17 25 32.53 +20 10 42.9 r H41
2004-05-28 00:12:38 C 17 24 58.12 +20 47 20.2 c J92
2004-05-28 00:45:06 C 17 24 56.91 +20 48 28.2 c J92
2004-05-28 01:17:37 C 17 24 55.68 +20 49 36.4 c J92
2004-05-28 01:48:07 C 17 24 54.54 +20 50 40.2 c J92
2004-05-28 23:48:40 C 17 24 09.19 +21 36 44.9 c A35
2004-05-28 23:53:18 C 17 24 08.98 +21 36 54.7 c A35
2004-05-28 23:57:57 C 17 24 08.81 +21 37 04.3 c A35
2004-05-29 07:42:54 C 17 23 52.02 +21 53 18.6 r H41
2004-05-29 07:45:26 C 17 23 51.86 +21 53 24.6 r H41
2004-05-29 22:06:30 C 17 23 21.30 +22 23 09.6 r 151
2004-05-29 22:08:30 C 17 23 21.22 +22 23 13.0 r 151
2004-05-29 22:10:38 C 17 23 21.20 +22 23 16.8 r 151
2004-05-29 22:14:45 C 17 23 20.94 +22 23 26.3 r 151
2004-05-29 22:17:05 C 17 23 20.78 +22 23 31.9 r 151
2004-05-29 22:17:59 C 17 23 20.80 +22 23 33.2 r 151
2004-05-29 22:18:59 C 17 23 20.76 +22 23 35.0 r 151
2004-05-29 22:20:08 C 17 23 20.77 +22 23 37.3 r 151
2004-05-29 22:21:01 C 17 23 20.76 +22 23 39.6 r 151
2004-05-29 22:21:53 C 17 23 20.73 +22 23 41.1 r 151
2004-05-29 22:44:17 C 17 23 19.79 +22 24 27.1 r A16
2004-05-29 22:46:14 C 17 23 19.69 +22 24 31.3 r A16
2004-05-29 22:48:57 C 17 23 19.60 +22 24 37.1 r A16
2004-05-29 22:53:52 C 17 23 19.35 +22 24 48.4 r A16
2004-05-29 22:54:14 C 17 23 19.35 +22 24 49.4 r A16
2004-05-29 22:57:39 C 17 23 19.15 +22 24 56.1 r A16
2004-05-29 23:01:48 C 17 23 18.98 +22 25 04.5 r A16
2004-05-29 23:02:55 C 17 23 18.94 +22 25 07.1 r A16
2004-05-30 23:37:47 C 17 22 23.12 +23 15 52.3 c J92
2004-05-30 23:59:11 C 17 22 22.20 +23 16 36.5 c J92
2004-05-31 00:19:29 C 17 22 21.34 +23 17 18.3 c J92
2004-05-31 07:48:55 C 17 22 03.37 +23 32 47.1 r H41
2004-06-01 08:38:37 C 17 21 03.64 +24 23 28.6 d 703
2004-06-01 08:49:07 C 17 21 03.19 +24 23 50.3 d 703
2004-06-01 08:59:40 C 17 21 02.69 +24 24 11.2 d 703
2004-06-01 09:10:12 C 17 21 02.15 +24 24 32.7 d 703
2004-06-06 08:57:20 C 17 15 40.43 +28 20 39.6 o 699
2004-06-06 09:21:47 C 17 15 39.14 +28 21 26.2 o 699
2004-06-06 09:46:13 C 17 15 37.84 +28 22 12.0 o 699
2004-06-06 10:10:36 C 17 15 36.52 +28 22 58.6 o 699
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)