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
2015-07-23 19:59:28 C 17 40 15.93 +14 42 32.1 17.3 q 089
2015-07-23 20:02:33 C 17 39 40.09 +14 43 15.2 17.6 q 089
2015-07-23 20:08:43 C 17 38 28.36 +14 44 40.1 17.4 q 089
2015-07-23 20:38:07 C 17 32 44.88 +14 51 02.0 17.7 q 089
2015-07-23 20:41:12 C 17 32 08.66 +14 51 39.9 17.7 q 089
2015-07-23 20:44:17 C 17 31 32.49 +14 52 18.1 17.3 q 089
2015-07-23 20:47:22 C 17 30 56.26 +14 52 54.9 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)