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
2011-09-08 05:53:18 C 00 18 48.75 +28 47 46.1 o H21
2011-09-08 05:56:20 C 00 18 49.11 +28 47 50.8 o H21
2011-09-08 06:04:26 C 00 18 50.04 +28 48 03.7 o H21
2011-09-09 21:28:55 C 00 24 01.69 +29 50 43.3 w I99
2011-09-09 21:35:24 C 00 24 02.17 +29 50 54.7 u 160
2011-09-09 21:37:45 C 00 24 02.43 +29 50 58.6 u 160
2011-09-09 21:38:31 C 00 24 02.97 +29 50 59.3 w I99
2011-09-09 21:40:03 C 00 24 02.74 +29 51 02.2 u 160
2011-09-09 21:47:57 C 00 24 04.21 +29 51 15.1 w I99
2011-09-10 13:05:13 C 00 26 11.98 +30 16 15.6 u 379
2011-09-10 13:16:08 C 00 26 13.44 +30 16 34.0 u 379
2011-09-10 13:44:55 C 00 26 17.31 +30 17 23.0 u 379
2011-09-10 21:45:20 C 00 27 26.24 +30 30 26.2 u B67
2011-09-10 21:48:09 C 00 27 26.60 +30 30 31.1 u B67
2011-09-10 21:50:58 C 00 27 27.01 +30 30 35.9 u B67
2011-09-10 23:34:15 C 00 27 41.20 +30 33 31.0 u 160
2011-09-10 23:36:35 C 00 27 41.51 +30 33 34.5 u 160
2011-09-10 23:38:55 C 00 27 41.81 +30 33 38.3 u 160
2011-09-11 12:57:06 C 00 29 40.75 +30 55 49.0 u 379
2011-09-11 13:10:14 C 00 29 42.63 +30 56 11.6 u 379
2011-09-11 13:12:55 C 00 29 42.99 +30 56 16.3 u 379
2011-09-11 13:24:05 C 00 29 44.59 +30 56 35.9 u 379
2011-09-12 13:56:26 C 00 33 31.61 +31 38 07.4 o 300
2011-09-12 13:59:28 C 00 33 32.08 +31 38 13.0 o 300
2011-09-12 14:01:23 C 00 33 32.33 +31 38 16.5 o 300
2011-09-12 14:04:17 C 00 33 32.76 +31 38 21.1 o 300
2011-09-12 14:06:13 C 00 33 33.05 +31 38 24.4 o 300
2011-09-12 20:04:07 C 00 34 30.67 +31 48 22.5 u C01
2011-09-12 20:04:43 C 00 34 30.74 +31 48 23.8 u C01
2011-09-12 20:05:16 C 00 34 30.83 +31 48 24.8 u C01
2011-09-12 20:05:48 C 00 34 30.94 +31 48 25.6 u C01
2011-09-12 20:06:24 C 00 34 31.02 +31 48 26.7 u C01
2011-09-12 21:49:21 C 00 34 47.29 +31 51 30.1 u B67
2011-09-12 21:54:21 C 00 34 48.08 +31 51 38.6 u B67
2011-09-12 21:59:11 C 00 34 48.80 +31 51 47.3 u B67
2011-09-12 22:16:48 C 00 34 51.36 +31 52 15.8 u C01
2011-09-12 22:17:43 C 00 34 51.49 +31 52 17.3 u C01
2011-09-12 22:18:36 C 00 34 51.63 +31 52 18.9 u C01
2011-09-12 22:19:30 C 00 34 51.77 +31 52 20.5 u C01
2011-09-12 22:20:23 C 00 34 51.91 +31 52 22.1 u C01
2011-09-12 22:37:52 C 00 34 55.96 +31 53 01.1 u J51
2011-09-12 22:44:15 C 00 34 56.95 +31 53 12.4 u J51
2011-09-12 22:50:40 C 00 34 57.93 +31 53 23.6 u J51
2011-09-12 23:27:16 C 00 35 02.24 +31 54 18.3 u C01
2011-09-12 23:28:11 C 00 35 02.38 +31 54 20.0 u C01
2011-09-12 23:29:04 C 00 35 02.51 +31 54 21.5 u C01
2011-09-12 23:29:57 C 00 35 02.66 +31 54 23.1 u C01
2011-09-12 23:30:52 C 00 35 02.79 +31 54 24.6 u C01
2011-09-13 22:13:58 C 00 38 51.07 +32 33 54.8 u 160
2011-09-13 22:16:37 C 00 38 51.51 +32 33 59.6 u 160
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)