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
2010-02-13 19:58:04 S 04 15 58.421 -06 30 40.68 L C51
2010-02-13 21:33:26 S 04 16 06.518 -06 29 38.36 L C51
2010-02-13 23:08:36 S 04 16 14.66 -06 28 34.3 L C51
2010-02-13 23:08:47 S 04 16 14.59 -06 28 33.4 L C51
2010-02-14 00:43:57 S 04 16 22.69 -06 27 30.2 L C51
2010-02-14 02:19:18 S 04 16 30.77 -06 26 26.3 L C51
2010-02-14 03:54:28 S 04 16 38.92 -06 25 23.7 L C51
2010-02-14 05:29:49 S 04 16 46.87 -06 24 20.4 L C51
2010-02-14 07:05:10 S 04 16 55.10 -06 23 17.1 L C51
2010-02-14 08:40:20 S 04 17 03.17 -06 22 12.7 L C51
2010-02-14 10:15:41 S 04 17 11.29 -06 21 10.7 L C51
2010-02-14 11:50:51 S 04 17 19.28 -06 20 10.5 L C51
2010-02-14 11:51:02 S 04 17 19.363 -06 20 06.00 L C51
2010-02-14 13:26:12 S 04 17 27.47 -06 19 04.4 L C51
2010-02-14 15:01:33 S 04 17 35.56 -06 18 02.0 L C51
2010-02-14 18:12:04 S 04 17 51.76 -06 15 56.9 L C51
2010-02-14 21:22:35 S 04 18 08.030 -06 13 50.30 L C51
2010-02-15 00:33:06 S 04 18 24.32 -06 11 45.3 L C51
2010-02-15 03:43:49 S 04 18 40.50 -06 09 37.6 L C51
2010-02-15 06:54:19 S 04 18 56.63 -06 07 31.4 L C51
2010-02-15 10:04:50 S 04 19 12.93 -06 05 27.8 L C51
2010-02-15 13:15:22 S 04 19 29.09 -06 03 21.9 L C51
2010-02-15 13:15:32 S 04 19 29.12 -06 03 21.6 L C51
2012-02-22 07:27:40 C 10 23 11.90 -23 17 00.4 r 703
2012-02-22 07:37:19 C 10 23 11.29 -23 16 53.5 r 703
2012-02-22 07:47:02 C 10 23 10.57 -23 16 49.9 r 703
2012-02-22 07:56:53 C 10 23 09.99 -23 16 43.8 r 703
2014-03-12 14:14:15 C 15 56 16.139 -21 04 13.15 L F51
2014-03-12 14:31:26 C 15 56 17.025 -21 04 06.95 L F51
2014-03-12 14:48:37 C 15 56 17.928 -21 04 00.73 L F51
2014-04-22 14:11:57 C 16 22 56.927 -07 46 51.64 L F51
2014-04-22 14:33:42 C 16 22 56.661 -07 46 21.90 L F51
2014-04-22 14:44:33 C 16 22 56.524 -07 46 06.98 L F51
2014-04-23 07:06:21 C 16 22 48.02 -07 23 40.0 o 691
2014-04-23 07:31:48 C 16 22 47.65 -07 23 04.5 o 691
2014-04-23 07:57:16 C 16 22 47.32 -07 22 29.5 o 691
2014-04-28 09:33:52 C 16 20 50.26 -04 25 05.6 o 691
2014-04-28 10:02:26 C 16 20 49.51 -04 24 22.1 o 691
2014-04-28 10:30:40 C 16 20 48.79 -04 23 38.4 o 691
2014-05-02 09:10:58 C 16 18 22.20 -01 54 02.0 q 703
2014-05-02 09:21:51 C 16 18 21.84 -01 53 44.8 q 703
2014-05-02 09:32:46 C 16 18 21.47 -01 53 27.7 q 703
2014-05-03 09:23:31 C 16 17 36.91 -01 14 22.9 o 691
2014-05-03 09:48:58 C 16 17 35.99 -01 13 41.0 o 691
2014-05-03 10:14:26 C 16 17 35.07 -01 12 59.0 o 691
2014-05-08 06:25:56 C 16 13 16.98 +02 03 53.4 o 691
2014-05-08 06:51:24 C 16 13 15.80 +02 04 37.9 o 691
2014-05-08 07:16:52 C 16 13 14.65 +02 05 21.8 o 691
2014-05-09 09:54:47 C 16 12 05.30 +02 51 42.6 q 703
2014-05-09 10:03:34 C 16 12 04.82 +02 51 56.8 q 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)