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
2015-06-09 21:12:28 S 12 37 13.970 +27 51 49.72 L C51
2015-06-09 22:47:05 S 12 38 08.885 +27 54 44.14 L C51
2015-06-10 01:56:08 S 12 39 59.861 +28 00 37.94 L C51
2015-06-10 03:30:34 S 12 40 56.383 +28 03 35.32 L C51
2015-06-10 05:05:11 S 12 41 53.426 +28 06 32.22 L C51
2015-06-10 08:14:14 S 12 43 48.876 +28 12 24.59 L C51
2015-06-14 06:45:31 C 14 02 33.19 +30 35 09.1 q 703
2015-06-14 06:52:49 C 14 02 40.71 +30 35 11.7 q 703
2015-06-14 07:00:06 C 14 02 48.21 +30 35 14.0 q 703
2015-06-14 07:39:05 C 14 03 29.24 +30 35 27.0 q 703
2015-06-14 07:54:23 C 14 03 45.52 +30 35 31.4 q 703
2015-06-14 08:02:04 C 14 03 53.71 +30 35 33.1 q 703
2015-06-14 08:31:58 C 14 04 25.60 +30 35 40.4 q I52
2015-06-14 08:32:35 C 14 04 26.28 +30 35 40.0 q I52
2015-06-14 08:33:12 C 14 04 26.98 +30 35 41.4 q I52
2015-06-14 08:33:51 C 14 04 27.66 +30 35 40.7 q I52
2015-06-14 09:03:02 C 14 04 59.13 +30 35 49.4 o 291
2015-06-14 09:03:15 C 14 04 59.36 +30 35 49.6 o 291
2015-06-14 09:03:28 C 14 04 59.60 +30 35 49.5 o 291
2015-06-15 03:49:12 C 14 26 55.80 +30 41 45.3 o 926
2015-06-15 03:54:44 C 14 27 02.09 +30 41 44.8 o 926
2015-06-15 03:59:29 C 14 27 07.48 +30 41 40.9 q I52
2015-06-15 03:59:46 C 14 27 07.80 +30 41 40.3 q I52
2015-06-15 04:00:03 C 14 27 08.16 +30 41 40.2 q I52
2015-06-15 04:00:14 C 14 27 08.42 +30 41 44.4 o 926
2015-06-15 04:00:21 C 14 27 08.45 +30 41 40.7 q I52
2015-06-15 04:58:28 C 14 28 14.94 +30 41 34.2 o 926
2015-06-15 05:03:59 C 14 28 21.26 +30 41 33.0 o 926
2015-06-15 05:09:29 C 14 28 27.59 +30 41 31.3 o 926
2015-06-15 05:34:24 C 14 28 51.79 +30 40 32.5 u H21
2015-06-15 05:37:28 C 14 28 55.36 +30 40 31.1 u H21
2015-06-15 05:40:01 C 14 28 58.35 +30 40 29.5 u H21
2015-06-15 05:42:51 C 14 29 01.71 +30 40 28.3 u H21
2015-06-15 06:47:14 C 14 30 20.71 +30 40 51.4 o 926
2015-06-15 06:52:45 C 14 30 27.12 +30 40 48.5 o 926
2015-06-15 06:58:18 C 14 30 33.58 +30 40 45.7 o 926
2015-06-15 20:56:16 C 14 48 17.42 +30 31 48.8 q 160
2015-06-15 20:58:30 C 14 48 20.15 +30 31 46.6 q 160
2015-06-15 21:00:44 C 14 48 22.92 +30 31 45.2 q 160
2015-06-15 21:02:57 C 14 48 25.66 +30 31 42.9 q 160
2015-06-15 21:15:14 C 14 48 40.90 +30 31 28.6 19.2 q 104
2015-06-15 21:27:07 C 14 48 55.62 +30 31 15.7 19.2 q 104
2015-06-15 21:32:43 C 14 49 02.57 +30 31 09.9 19.0 q 104
2015-06-16 05:39:57 C 14 59 42.92 +30 22 11.6 o 926
2015-06-16 05:42:46 C 14 59 46.52 +30 22 07.7 o 926
2015-06-16 05:45:37 C 14 59 50.13 +30 22 02.7 o 926
2015-06-16 08:15:45 C 15 03 02.08 +30 17 37.8 o 926
2015-06-16 08:18:36 C 15 03 05.77 +30 17 31.9 o 926
2015-06-16 08:21:27 C 15 03 09.48 +30 17 26.5 o 926
2015-06-17 05:16:01 C 15 32 10.57 +29 31 23.9 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)