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
2019-10-01 03:01:07 C 17 38 43.55 +07 17 21.0 V G96
2019-10-01 03:10:29 C 17 38 45.07 +07 17 11.1 V G96
2019-10-01 03:19:52 C 17 38 46.57 +07 17 01.7 V G96
2019-10-16 05:16:40 C 18 45 35.69 +00 11 49.7 V T08
2019-10-16 05:21:58 C 18 45 36.79 +00 11 42.7 V T08
2019-10-16 05:29:51 C 18 45 38.37 +00 11 32.8 V T08
2019-10-16 05:49:00 C 18 45 42.25 +00 11 07.3 V T08
2019-11-01 05:11:45 C 20 14 40.16 -08 45 29.2 V T08
2019-11-01 05:16:26 C 20 14 41.32 -08 45 35.5 V T08
2019-11-01 05:24:33 C 20 14 43.41 -08 45 46.5 V T08
2019-11-01 06:08:25 C 20 14 54.27 -08 46 46.3 V T08
2019-11-09 02:24:00 C 21 03 46.25 -12 48 06.3 V 703
2019-11-09 02:30:22 C 21 03 47.90 -12 48 12.3 V 703
2019-11-09 02:36:43 C 21 03 49.50 -12 48 19.6 V 703
2019-11-09 02:43:04 C 21 03 51.13 -12 48 28.2 V 703
2019-11-18 02:23:31 C 22 00 21.52 -16 17 56.4 V 703
2019-11-18 02:31:26 C 22 00 23.55 -16 18 03.0 V 703
2019-11-18 02:39:21 C 22 00 25.51 -16 18 09.8 V 703
2019-11-18 02:47:17 C 22 00 27.54 -16 18 15.8 V 703
2019-11-23 02:34:42 C 22 30 45.48 -17 35 18.9 V 703
2019-11-23 02:42:57 C 22 30 47.47 -17 35 23.5 V 703
2019-11-23 02:51:10 C 22 30 49.44 -17 35 27.7 V 703
2019-11-23 02:59:23 C 22 30 51.43 -17 35 32.4 V 703
2019-11-28 06:06:02 C 23 00 30.83 -18 24 55.2 V T08
2019-11-28 06:09:22 C 23 00 31.59 -18 24 56.9 V T08
2019-11-28 06:18:40 C 23 00 33.78 -18 24 57.9 V T08
2019-11-28 06:34:37 C 23 00 37.39 -18 25 02.5 V T08
2019-11-30 05:48:32 C 23 11 31.89 -18 36 28.3 V T05
2019-11-30 05:53:15 C 23 11 32.91 -18 36 29.8 V T05
2019-11-30 06:01:13 C 23 11 34.71 -18 36 30.5 V T05
2019-11-30 06:15:53 C 23 11 37.95 -18 36 33.5 V T05
2019-12-11 06:18:55 C 00 07 15.902 -18 35 53.85 U F52
2019-12-11 06:33:58 C 00 07 18.742 -18 35 51.08 U F52
2019-12-11 06:48:59 C 00 07 21.585 -18 35 48.44 U F52
2019-12-16 06:48:02 C 00 29 41.62 -18 06 47.1 V T05
2019-12-16 06:52:44 C 00 29 42.44 -18 06 45.9 V T05
2019-12-16 07:00:44 C 00 29 43.84 -18 06 42.6 V T05
2019-12-16 07:17:28 C 00 29 46.74 -18 06 37.9 V T05
2019-12-17 03:30:46 C 00 33 22.72 -18 00 23.5 V 703
2019-12-17 03:54:25 C 00 33 26.67 -18 00 17.4 V 703
2019-12-20 07:28:05 C 00 46 28.35 -17 33 46.1 V T05
2019-12-20 07:32:44 C 00 46 29.06 -17 33 44.7 V T05
2019-12-20 07:44:05 C 00 46 30.94 -17 33 40.4 V T05
2019-12-20 07:59:26 C 00 46 33.42 -17 33 33.9 V T05
2019-12-21 04:15:31 C 00 49 56.90 -17 25 45.8 V 703
2019-12-21 04:30:47 C 00 49 59.60 -17 25 38.8 V 703
2019-12-21 04:38:24 C 00 50 00.86 -17 25 35.5 V 703
2019-12-24 05:07:19 C 01 01 48.643 -16 55 07.68 U F52
2019-12-24 05:26:04 C 01 01 51.553 -16 54 59.41 U F52
2019-12-24 05:44:47 C 01 01 54.450 -16 54 51.11 U F52
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)