509935 (2009 QL8)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5408720245 ± 1.11e-08
Semi-major axis (a)1.9309462940 AU ± 1.80e-09
Inclination (i)4.24097752° ± 1.65e-06
Long. of Asc. Node (Ω)84.46843405° ± 2.90e-05
Arg. of Perihelion (ω)339.67613157° ± 2.82e-05
Mean Anomaly (M)349.56726520° ± 2.91e-06
Mean Motion (n)0.3673304949°/day ± 5.13e-10
Perihelion dist (q)0.88655146 AU ± 2.15e-08
Aphelion dist (Q)2.97534113 AU ± 2.17e-08
Orbital Period2.68321388 yr ± 3.75e-09
Physical Parameters
H (abs. magnitude)19.43
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.258″
Uncertainty0
Orbit TypeApollo
MOID0.028288 AU
Observations Used265
Radar Obs Used1
Oppositions5
Arc Total2009-2025
First Observation Used2009-08-20
Last Observation Used2025-12-18
Observations (288)
Date Type RA Dec Mag Band Observatory
2018-03-16 06:18:28 C 10 21 17.67 +22 07 28.6 U 703
2018-03-16 06:26:05 C 10 21 17.48 +22 07 26.5 U 703
2019-06-03 01:09:13 C 16 42 17.52 -20 48 50.6 W84
2019-06-03 01:11:42 C 16 42 17.38 -20 48 50.4 W84
2019-06-03 01:16:40 C 16 42 17.10 -20 48 50.1 W84
2019-06-03 01:19:08 C 16 42 16.97 -20 48 49.9 W84
2019-06-03 01:34:04 C 16 42 16.17 -20 48 49.0 W84
2019-06-03 01:36:33 C 16 42 16.02 -20 48 48.9 W84
2019-06-03 01:41:29 C 16 42 15.77 -20 48 48.6 W84
2019-06-03 01:43:58 C 16 42 15.63 -20 48 48.4 W84
2019-06-03 01:46:26 C 16 42 15.49 -20 48 48.3 W84
2019-06-03 01:48:56 C 16 42 15.36 -20 48 48.2 W84
2019-06-03 01:53:53 C 16 42 15.09 -20 48 47.8 W84
2019-06-03 01:56:22 C 16 42 14.94 -20 48 47.9 W84
2019-06-03 01:58:51 C 16 42 14.81 -20 48 47.6 W84
2019-06-03 02:01:20 C 16 42 14.68 -20 48 47.4 W84
2019-06-03 02:06:18 C 16 42 14.42 -20 48 47.2 W84
2019-06-03 02:08:47 C 16 42 14.28 -20 48 46.9 W84
2019-06-03 02:11:16 C 16 42 14.14 -20 48 46.9 W84
2019-06-03 02:13:43 C 16 42 14.01 -20 48 46.8 W84
2019-06-03 02:18:42 C 16 42 13.74 -20 48 46.4 W84
2019-06-03 02:21:09 C 16 42 13.60 -20 48 46.3 W84
2025-07-04 12:24:59 C 21 17 08.456 -20 34 57.81 X F52
2025-07-04 12:39:49 C 21 17 08.118 -20 35 02.11 X F52
2025-07-04 12:54:34 C 21 17 07.782 -20 35 06.21 X F52
2025-08-17 08:02:53 C 20 14 49.135 -27 48 00.90 X F51
2025-08-17 08:17:54 C 20 14 47.824 -27 48 06.70 X F51
2025-08-17 08:32:54 C 20 14 46.542 -27 48 12.17 X F51
2025-08-17 08:52:25 C 20 14 44.845 -27 48 19.54 X F51
2025-08-25 07:33:27 C 19 59 30.302 -28 49 30.17 X F52
2025-08-25 07:41:42 C 19 59 29.643 -28 49 32.33 X F52
2025-08-25 07:49:56 C 19 59 28.992 -28 49 34.70 X F52
2025-09-17 05:33:53 C 19 31 16.877 -30 01 27.51 X F51
2025-09-17 05:50:20 C 19 31 16.460 -30 01 27.98 X F51
2025-09-17 05:58:33 C 19 31 16.231 -30 01 28.09 X F51
2025-12-18 01:11:06 C 22 14 13.73 -14 45 12.4 W W84
2025-12-18 01:23:12 C 22 14 15.45 -14 44 57.4 W W84
2025-12-18 01:37:35 C 22 14 17.49 -14 44 39.4 W W84
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2017-12-29 11:12:00 -92671.7921 0.15 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)