138524 (2000 OJ8)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5676710176 ± 5.98e-09
Semi-major axis (a)2.3577579692 AU ± 1.89e-09
Inclination (i)6.24493720° ± 1.28e-06
Long. of Asc. Node (Ω)226.56772153° ± 9.33e-06
Arg. of Perihelion (ω)181.28687025° ± 9.28e-06
Mean Anomaly (M)316.74838439° ± 1.64e-06
Mean Motion (n)0.2722472139°/day ± 3.28e-10
Perihelion dist (q)1.01932710 AU ± 1.41e-08
Aphelion dist (Q)3.69618883 AU ± 1.44e-08
Orbital Period3.62033561 yr ± 4.36e-09
Physical Parameters
H (abs. magnitude)16.86
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.291″
Uncertainty0
Orbit TypeAmor
MOID0.027569 AU
Observations Used986
Radar Obs Used1
Oppositions8
Arc Total2000-2025
First Observation Used2000-07-30
Last Observation Used2025-07-28
Observations (1052)
Date Type RA Dec Mag Band Observatory
2011-09-20 21:03:50 C 01 14 31.41 +37 41 40.8 u C01
2011-09-20 22:33:50 C 01 14 54.51 +37 44 37.1 u C01
2011-09-20 22:34:44 C 01 14 54.73 +37 44 38.8 u C01
2011-09-20 22:35:36 C 01 14 54.96 +37 44 40.5 u C01
2011-09-20 22:36:31 C 01 14 55.19 +37 44 42.2 u C01
2011-09-20 22:37:24 C 01 14 55.42 +37 44 43.9 u C01
2011-09-21 00:25:11 C 01 15 23.26 +37 48 16.3 c A24
2011-09-21 00:25:32 C 01 15 23.35 +37 48 17.1 c A24
2011-09-21 01:35:22 C 01 15 41.15 +37 50 29.9 c A24
2011-09-21 01:35:43 C 01 15 41.26 +37 50 30.6 c A24
2011-09-21 01:39:00 C 01 15 42.04 +37 50 36.3 r 130
2011-09-21 01:40:09 C 01 15 42.34 +37 50 38.6 r 130
2011-09-21 01:41:43 C 01 15 42.73 +37 50 41.4 r 130
2011-09-21 01:43:17 C 01 15 43.14 +37 50 44.4 r 130
2011-09-22 23:44:38 C 01 28 53.07 +39 18 38.2 c A24
2011-09-22 23:45:01 C 01 28 53.18 +39 18 38.9 c A24
2011-09-23 00:54:52 C 01 29 13.54 +39 20 52.3 c A24
2011-09-23 00:55:15 C 01 29 13.64 +39 20 53.1 c A24
2011-09-23 20:05:59 C 01 35 16.58 +39 56 56.2 u C01
2011-09-23 20:06:51 C 01 35 16.85 +39 56 57.9 u C01
2011-09-23 20:07:45 C 01 35 17.12 +39 56 59.6 u C01
2011-09-23 20:08:38 C 01 35 17.41 +39 57 01.4 u C01
2011-09-23 20:09:33 C 01 35 17.69 +39 57 03.2 u C01
2011-09-23 21:22:26 C 01 35 40.71 +39 59 25.9 u C01
2011-09-23 21:23:21 C 01 35 40.99 +39 59 27.7 u C01
2011-09-23 21:24:14 C 01 35 41.26 +39 59 29.4 u C01
2011-09-23 21:25:09 C 01 35 41.55 +39 59 31.2 u C01
2011-09-23 21:26:02 C 01 35 41.83 +39 59 32.9 u C01
2011-09-24 06:43:56 C 01 38 44.16 +40 17 19.7 r 703
2011-09-24 06:54:27 C 01 38 47.50 +40 17 40.0 r 703
2011-09-24 21:54:57 C 01 43 52.23 +40 45 18.3 c 127
2011-09-24 22:01:48 C 01 43 54.55 +40 45 31.4 c 127
2011-09-24 22:08:55 C 01 43 56.65 +40 45 46.2 u C01
2011-09-24 22:09:50 C 01 43 56.96 +40 45 47.9 u C01
2011-09-24 22:11:40 C 01 43 57.84 +40 45 50.4 c 127
2011-09-25 21:00:38 C 01 52 06.34 +41 27 27.5 c 127
2011-09-25 21:09:43 C 01 52 09.61 +41 27 44.8 c 127
2011-09-25 21:13:59 C 01 52 11.17 +41 27 52.7 c 127
2011-09-27 23:53:18 C 02 12 06.94 +42 55 32.4 t J84
2011-09-27 23:55:39 C 02 12 07.90 +42 55 36.4 t J84
2011-09-27 23:58:00 C 02 12 08.87 +42 55 40.5 t J84
2011-09-28 00:00:21 C 02 12 09.83 +42 55 44.4 t J84
2011-09-28 00:02:44 C 02 12 10.81 +42 55 48.6 t J84
2011-09-28 22:58:07 C 02 22 07.18 +43 32 12.7 u 160
2011-09-28 22:59:56 C 02 22 07.96 +43 32 15.5 u 160
2011-09-28 23:01:45 C 02 22 08.74 +43 32 18.5 u 160
2011-09-30 19:28:00 C 02 43 04.40 +44 33 53.5 u C01
2011-09-30 19:28:54 C 02 43 04.84 +44 33 54.7 u C01
2011-09-30 19:29:47 C 02 43 05.30 +44 33 55.9 u C01
2011-09-30 19:30:40 C 02 43 05.72 +44 33 57.1 u C01
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2011-10-20 09:54:00 134159626.89 1 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)