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
2004-12-21 05:15:44 C 03 09 53.97 -23 54 24.9 d 703
2004-12-21 05:27:41 C 03 09 54.62 -23 54 16.5 d 703
2004-12-21 05:39:37 C 03 09 55.23 -23 54 08.3 d 703
2004-12-21 05:51:37 C 03 09 55.80 -23 54 01.2 d 703
2009-04-02 11:23:35 C 16 42 01.36 -15 32 25.4 r G96
2009-04-02 11:35:26 C 16 42 01.83 -15 32 16.6 r G96
2009-04-02 11:47:24 C 16 42 02.34 -15 32 06.7 r G96
2009-04-02 11:59:15 C 16 42 02.77 -15 31 57.2 r G96
2009-04-30 08:47:55 C 16 57 03.96 -02 07 29.4 19.5 c 704
2009-04-30 09:02:30 C 16 57 03.77 -02 07 06.6 19.4 c 704
2009-04-30 09:16:58 C 16 57 03.66 -02 06 42.5 18.8 c 704
2009-05-20 22:29:23 C 16 45 08.27 +13 03 00.3 o B88
2009-05-20 22:50:14 C 16 45 07.32 +13 03 41.0 o B88
2009-05-20 23:11:05 C 16 45 06.24 +13 04 21.3 o B88
2009-05-25 22:10:37 C 16 39 17.47 +16 52 58.1 r A13
2009-05-25 22:43:58 C 16 39 15.58 +16 54 01.3 r A13
2009-05-29 08:41:26 C 16 34 45.15 +19 25 46.7 r 703
2009-05-29 08:52:24 C 16 34 44.43 +19 26 05.7 r 703
2009-05-29 09:03:29 C 16 34 43.71 +19 26 26.3 r 703
2009-05-29 09:14:38 C 16 34 43.14 +19 26 44.5 r 703
2009-06-01 23:09:36 C 16 29 42.58 +21 57 55.0 r J51
2009-06-01 23:21:10 C 16 29 41.87 +21 58 15.0 r J51
2009-06-01 23:32:43 C 16 29 41.13 +21 58 34.6 r J51
2009-06-09 19:57:57 C 16 18 07.39 +26 52 43.3 w B40
2009-06-09 20:01:25 C 16 18 07.13 +26 52 48.2 w B40
2009-06-09 20:06:02 C 16 18 06.83 +26 52 54.7 w B40
2009-06-12 22:12:01 C 16 13 33.83 +28 32 21.3 c B23
2009-06-12 22:14:17 C 16 13 33.74 +28 32 24.0 c B23
2009-06-12 22:16:34 C 16 13 33.63 +28 32 27.1 c B23
2009-06-12 22:18:54 C 16 13 33.40 +28 32 29.8 c B23
2009-06-13 23:15:06 C 16 12 03.44 +29 03 50.6 r J51
2009-06-13 23:24:46 C 16 12 02.82 +29 04 02.6 r J51
2009-06-13 23:34:26 C 16 12 02.19 +29 04 14.7 r J51
2009-06-15 07:58:14 C 16 10 05.77 +29 43 08.6 r 703
2009-06-15 08:06:00 C 16 10 05.26 +29 43 17.6 r 703
2009-06-15 08:13:49 C 16 10 04.76 +29 43 26.7 r 703
2009-06-15 08:21:36 C 16 10 04.29 +29 43 35.3 r 703
2009-06-15 20:51:48 C 16 09 21.31 +29 58 03.6 w 160
2009-06-15 20:55:13 C 16 09 21.07 +29 58 07.3 w 160
2009-06-15 20:58:33 C 16 09 20.88 +29 58 11.2 w 160
2009-06-15 21:01:53 C 16 09 20.68 +29 58 15.0 w 160
2009-06-15 21:05:12 C 16 09 20.45 +29 58 19.1 w 160
2009-06-19 05:11:55 C 16 04 46.49 +31 24 40.6 r H45
2009-06-19 05:13:50 C 16 04 46.31 +31 24 42.7 r H45
2009-06-19 05:16:29 C 16 04 46.18 +31 24 45.1 r H45
2009-06-19 05:17:45 C 16 04 46.12 +31 24 46.4 r H45
2009-06-19 05:19:15 C 16 04 45.99 +31 24 48.1 r H45
2009-07-05 06:10:10 C 15 48 38.91 +35 53 56.0 r 703
2009-07-05 06:20:07 C 15 48 38.62 +35 54 01.1 r 703
2009-07-05 06:29:57 C 15 48 38.30 +35 54 05.6 r 703
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)