2015 LQ21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5497695091 ± 3.40e-07
Semi-major axis (a)2.2471970579 AU ± 1.47e-06
Inclination (i)1.43191191° ± 2.09e-06
Long. of Asc. Node (Ω)159.58865791° ± 2.67e-04
Arg. of Perihelion (ω)90.24741563° ± 2.80e-04
Mean Anomaly (M)35.68879534° ± 1.17e-03
Mean Motion (n)0.2925839776°/day ± 2.87e-07
Perihelion dist (q)1.01175663 AU ± 1.01e-06
Aphelion dist (Q)3.48263748 AU ± 2.40e-06
Orbital Period3.36869534 yr ± 3.30e-06
Physical Parameters
H (abs. magnitude)24.49
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.300″
Uncertainty1
Orbit TypeApollo
MOID0.024987 AU
Observations Used105
Radar Obs Used3
Oppositions1
Arc Total2015-2015
First Observation Used2015-06-14
Last Observation Used2015-07-18
Observations (116)
Date Type RA Dec Mag Band Observatory
2015-06-17 05:17:42 C 15 32 12.82 +29 31 19.0 o 926
2015-06-17 05:19:22 C 15 32 15.04 +29 31 14.2 o 926
2015-06-17 20:56:08 C 15 54 28.69 +28 37 38.8 q Z81
2015-06-17 21:21:32 C 15 55 03.26 +28 36 04.3 q Z81
2015-06-17 21:53:22 C 15 55 46.46 +28 34 01.3 q Z81
2015-06-17 22:17:16 C 15 56 18.83 +28 32 26.9 q Z81
2015-06-18 05:20:36 C 16 06 24.31 +28 02 55.9 U 654
2015-06-18 05:50:36 C 16 07 04.88 +28 00 44.9 U 654
2015-06-18 06:21:23 C 16 07 46.45 +27 58 27.9 U 654
2015-06-18 06:50:36 C 16 08 25.98 +27 56 15.2 U 654
2015-06-18 07:21:07 C 16 09 07.21 +27 53 53.7 U 654
2015-06-19 05:40:48 C 16 40 35.20 +25 58 21.1 U 654
2015-06-19 06:10:57 C 16 41 14.62 +25 55 29.8 U 654
2015-06-19 06:39:42 C 16 41 50.14 +25 52 57.3 o 926
2015-06-19 06:41:49 C 16 41 54.91 +25 52 31.7 U 654
2015-06-19 06:42:32 C 16 41 53.84 +25 52 40.8 o 926
2015-06-19 06:45:25 C 16 41 57.58 +25 52 23.8 o 926
2015-06-19 06:48:14 C 16 42 01.27 +25 52 07.2 o 926
2015-06-19 06:51:06 C 16 42 04.99 +25 51 50.5 o 926
2015-06-19 06:53:57 C 16 42 08.68 +25 51 33.8 o 926
2015-06-19 07:10:38 C 16 42 32.45 +25 49 43.5 U 654
2015-06-19 07:21:15 C 16 42 42.73 +25 48 44.4 t 705
2015-06-19 07:24:59 C 16 42 47.27 +25 48 23.5 t 705
2015-06-19 10:13:59 C 16 46 30.61 +25 31 10.5 o 926
2015-06-19 10:16:52 C 16 46 34.39 +25 30 52.8 o 926
2015-06-19 10:19:42 C 16 46 38.15 +25 30 34.9 o 926
2015-06-19 21:47:37 C 17 02 16.00 +24 19 09.6 t 204
2015-06-19 21:52:51 C 17 02 22.60 +24 18 36.2 t 204
2015-06-19 21:58:08 C 17 02 29.25 +24 18 02.4 t 204
2015-06-20 04:26:05 C 17 11 00.23 +23 36 39.6 o 926
2015-06-20 04:31:47 C 17 11 07.20 +23 36 02.9 o 926
2015-06-20 05:11:25 C 17 11 57.06 +23 31 29.5 U 654
2015-06-20 06:19:25 C 17 13 17.99 +23 24 20.7 o 926
2015-06-20 06:22:16 C 17 13 21.43 +23 24 01.6 o 926
2015-06-20 06:25:06 C 17 13 24.86 +23 23 42.7 o 926
2015-06-20 06:47:01 C 17 13 53.11 +23 21 03.1 U 654
2015-06-20 08:00:37 C 17 15 21.73 +23 12 48.6 U 654
2015-06-20 08:30:42 C 17 15 57.86 +23 09 23.2 U 654
2015-06-20 11:00:25 C 17 18 57.13 +22 52 02.6 o 926
2015-06-20 11:03:16 C 17 19 00.62 +22 51 42.2 o 926
2015-06-20 11:06:06 C 17 19 04.14 +22 51 22.3 o 926
2015-06-21 04:27:57 C 17 40 23.55 +20 51 14.9 o 926
2015-06-21 04:30:48 C 17 40 26.71 +20 50 55.9 o 926
2015-06-21 04:33:42 C 17 40 29.92 +20 50 35.8 o 926
2015-06-21 07:58:09 C 17 44 11.75 +20 26 46.2 o 926
2015-06-21 08:01:00 C 17 44 14.82 +20 26 26.0 o 926
2015-06-21 08:03:51 C 17 44 17.87 +20 26 05.7 o 926
2015-06-21 10:26:57 C 17 46 51.70 +20 08 49.1 o 926
2015-06-21 10:29:50 C 17 46 54.82 +20 08 28.6 o 926
2015-06-21 10:32:40 C 17 46 57.86 +20 08 07.5 o 926
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-06-19 02:30:00 -4104.1569 0.2 Hz 2380 -1 -1
2015-06-19 02:50:00 33242143.74 4 us 2380 -1 -1
2015-06-19 03:50:00 33251220.19 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)