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
2004-10-21 18:40:21 C 23 53 56.81 +08 33 11.8 r 185
2004-10-21 18:42:33 C 23 53 57.92 +08 32 50.4 r 185
2004-10-21 18:46:18 C 23 53 59.83 +08 32 13.1 r 185
2004-10-21 18:59:04 C 23 54 06.27 +08 30 07.3 r 185
2004-10-21 18:59:12 C 23 54 05.70 +08 30 01.0 c 639
2004-10-21 19:01:07 C 23 54 07.36 +08 29 46.2 r 185
2004-10-21 19:06:00 C 23 54 09.10 +08 28 53.8 c 639
2004-10-21 19:12:26 C 23 54 12.34 +08 27 50.2 c 639
2004-10-21 19:17:28 C 23 54 14.87 +08 27 00.2 c 639
2004-10-21 19:23:45 C 23 54 18.02 +08 25 58.1 c 639
2004-10-21 19:28:54 C 23 54 20.61 +08 25 07.2 c 639
2004-10-21 19:56:11 C 23 54 35.00 +08 20 43.0 r 185
2004-10-21 19:56:51 C 23 54 35.27 +08 20 31.6 c 127
2004-10-21 20:00:40 C 23 54 37.17 +08 19 53.7 c 127
2004-10-21 20:01:11 C 23 54 37.00 +08 19 43.7 c A32
2004-10-21 20:02:48 C 23 54 37.77 +08 19 27.6 c A32
2004-10-21 20:03:41 C 23 54 38.70 +08 19 23.8 c 127
2004-10-21 20:04:24 C 23 54 38.63 +08 19 11.6 c A32
2004-10-21 20:05:15 C 23 54 39.52 +08 19 13.8 r 185
2004-10-21 20:06:01 C 23 54 39.40 +08 18 55.8 c A32
2004-10-21 20:06:43 C 23 54 40.25 +08 18 54.4 c 127
2004-10-21 20:07:39 C 23 54 40.23 +08 18 39.6 c A32
2004-10-22 02:44:37 C 23 58 02.46 +07 16 26.4 c 844
2004-10-22 02:49:46 C 23 58 04.96 +07 15 36.0 c 844
2004-10-22 02:55:22 C 23 58 07.67 +07 14 41.3 c 844
2004-10-22 03:00:30 C 23 58 10.15 +07 13 51.3 c 844
2004-10-22 12:40:12 C 00 03 04.71 +05 38 47.9 r 379
2004-10-22 12:41:21 C 00 03 05.27 +05 38 37.3 r 379
2004-10-22 12:42:29 C 00 03 05.81 +05 38 26.0 r 379
2004-10-22 12:43:38 C 00 03 06.30 +05 38 14.8 r 379
2004-10-22 12:44:47 C 00 03 06.87 +05 38 04.4 r 379
2004-10-22 12:45:57 C 00 03 07.42 +05 37 53.4 r 379
2004-10-22 12:48:15 C 00 03 08.47 +05 37 31.4 r 379
2004-10-22 12:49:24 C 00 03 09.05 +05 37 20.1 r 379
2004-10-22 12:51:41 C 00 03 10.10 +05 36 59.1 r 379
2004-10-22 18:26:51 C 00 05 58.15 +04 43 56.6 c 639
2004-10-22 18:33:14 C 00 06 01.28 +04 42 56.2 c 639
2004-10-22 18:40:52 C 00 06 04.80 +04 41 45.0 c 639
2004-10-22 18:48:34 C 00 06 08.42 +04 40 34.1 c 639
2004-10-22 18:54:10 C 00 06 11.04 +04 39 41.9 c 639
2004-10-22 19:02:43 C 00 06 15.00 +04 38 22.6 c 639
2004-10-22 19:11:47 C 00 06 19.24 +04 36 58.3 c 639
2004-10-22 19:15:53 C 00 06 21.14 +04 36 19.9 c 639
2004-10-22 19:20:21 C 00 06 23.24 +04 35 38.2 c 639
2004-10-22 19:33:36 C 00 06 29.44 +04 33 35.0 c 639
2004-10-22 19:39:49 C 00 06 32.35 +04 32 37.2 c 639
2004-10-22 19:45:27 C 00 06 34.98 +04 31 44.8 c 639
2004-10-23 11:16:35 C 00 13 57.01 +02 11 05.9 r 379
2004-10-23 11:18:53 C 00 13 58.04 +02 10 45.7 r 379
2004-10-23 11:21:10 C 00 13 59.03 +02 10 25.4 r 379
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)