2015 OQ21

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3640020506 ± 6.19e-08
Semi-major axis (a)0.7891558907 AU ± 6.01e-08
Inclination (i)1.61484719° ± 1.58e-05
Long. of Asc. Node (Ω)125.77324888° ± 1.47e-04
Arg. of Perihelion (ω)328.45794640° ± 1.77e-04
Mean Anomaly (M)133.38433767° ± 9.77e-04
Mean Motion (n)1.4059441601°/day ± 1.61e-07
Perihelion dist (q)0.50190153 AU ± 6.20e-08
Aphelion dist (Q)1.07641025 AU ± 9.54e-08
Orbital Period0.70104227 yr ± 8.00e-08
Physical Parameters
H (abs. magnitude)27.90
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.389″
Uncertainty0
Orbit TypeAten
MOID0.002738 AU
Observations Used57
Radar Obs Used3
Oppositions1
Arc Total2015-2015
First Observation Used2015-07-19
Last Observation Used2015-07-23
Observations (57)
Date Type RA Dec Mag Band Observatory
2015-07-19 12:34:32 C 22 12 49.003 +00 43 36.72 L F51
2015-07-19 12:51:57 C 22 12 40.248 +00 44 06.18 L F51
2015-07-19 13:09:28 C 22 12 31.381 +00 44 35.97 L F51
2015-07-20 10:22:37 C 22 02 43.116 +01 28 47.38 t 568
2015-07-20 10:24:29 C 22 02 41.771 +01 28 52.21 t 568
2015-07-20 10:26:23 C 22 02 40.369 +01 28 57.28 t 568
2015-07-21 13:34:40 C 21 39 31.20 +03 19 24.4 t 474
2015-07-21 13:36:07 C 21 39 29.22 +03 19 32.4 t 474
2015-07-21 13:38:17 C 21 39 26.29 +03 19 43.3 t 474
2015-07-21 13:40:27 C 21 39 23.34 +03 19 54.7 t 474
2015-07-22 07:36:10 C 21 09 52.98 +05 04 31.0 o 291
2015-07-22 07:36:44 C 21 09 51.57 +05 04 36.3 o 291
2015-07-22 07:37:15 C 21 09 50.24 +05 04 40.9 o 291
2015-07-22 11:57:10 C 20 59 17.19 +06 09 46.1 t 474
2015-07-22 11:57:33 C 20 59 16.05 +06 09 49.9 t 474
2015-07-22 11:57:57 C 20 59 14.88 +06 09 54.2 t 474
2015-07-22 11:58:43 C 20 59 12.65 +06 10 02.9 t 474
2015-07-22 11:59:07 C 20 59 11.54 +06 10 07.4 t 474
2015-07-22 13:09:09 C 20 54 59.271 +06 03 18.55 t 568
2015-07-22 13:11:03 C 20 54 53.293 +06 03 38.98 t 568
2015-07-22 13:12:03 C 20 54 50.144 +06 03 49.73 t 568
2015-07-22 14:51:38 C 20 50 11.58 +06 43 27.0 t 474
2015-07-22 14:52:15 C 20 50 09.58 +06 43 33.9 t 474
2015-07-22 14:54:04 C 20 50 03.50 +06 43 56.2 t 474
2015-07-22 14:54:22 C 20 50 02.51 +06 43 59.5 t 474
2015-07-22 21:54:50 C 20 25 45.73 +07 46 08.3 q J95
2015-07-22 22:04:26 C 20 25 02.91 +07 48 36.5 q J95
2015-07-22 22:13:40 C 20 24 21.38 +07 50 59.8 q J95
2015-07-22 22:27:02 C 20 23 20.53 +07 54 27.9 q J95
2015-07-22 22:36:38 C 20 22 36.32 +07 56 58.5 q J95
2015-07-22 22:46:18 C 20 21 51.41 +07 59 31.1 q J95
2015-07-22 22:56:04 C 20 21 05.69 +08 02 05.4 q J95
2015-07-23 00:03:04 C 20 15 39.82 +08 20 14.3 q J69
2015-07-23 00:40:22 C 20 12 30.44 +08 30 26.4 q J69
2015-07-23 00:42:32 C 20 12 19.28 +08 31 02.5 q J69
2015-07-23 00:46:52 C 20 11 56.86 +08 32 14.1 q J69
2015-07-23 05:56:18 C 19 43 19.47 +10 10 29.6 u H21
2015-07-23 05:57:59 C 19 43 08.10 +10 11 02.2 u H21
2015-07-23 05:58:49 C 19 43 02.40 +10 11 19.2 u H21
2015-07-23 05:59:40 C 19 42 56.74 +10 11 35.3 u H21
2015-07-23 06:00:30 C 19 42 51.00 +10 11 51.8 u H21
2015-07-23 06:01:21 C 19 42 45.33 +10 12 08.2 u H21
2015-07-23 06:02:11 C 19 42 39.64 +10 12 24.4 u H21
2015-07-23 06:03:52 C 19 42 28.26 +10 12 57.0 u H21
2015-07-23 19:40:58 C 17 43 50.10 +14 38 06.6 17.3 q 089
2015-07-23 19:44:03 C 17 43 14.45 +14 38 52.0 17.3 q 089
2015-07-23 19:47:08 C 17 42 38.81 +14 39 36.3 17.3 q 089
2015-07-23 19:50:13 C 17 42 03.14 +14 40 21.2 17.7 q 089
2015-07-23 19:53:18 C 17 41 27.44 +14 41 05.0 17.3 q 089
2015-07-23 19:56:23 C 17 40 51.67 +14 41 48.8 17.4 q 089
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2015-07-25 20:15:00 -107979.3614 2 Hz 2380 -1 -1
2015-07-25 20:26:00 8899996.79 4 us 2380 -1 -1
2015-07-25 20:47:00 8957615.98 0.5 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)