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
2011-08-02 22:41:56 C 23 15 43.40 +12 08 35.7 u C01
2011-08-02 22:43:20 C 23 15 43.48 +12 08 37.0 u C01
2011-08-02 22:44:42 C 23 15 43.55 +12 08 38.1 u C01
2011-08-02 22:46:05 C 23 15 43.62 +12 08 39.3 u C01
2011-08-02 23:35:40 C 23 15 46.06 +12 09 22.6 u C01
2011-08-02 23:37:05 C 23 15 46.13 +12 09 23.8 u C01
2011-08-02 23:38:28 C 23 15 46.20 +12 09 25.0 u C01
2011-08-02 23:39:52 C 23 15 46.26 +12 09 26.2 u C01
2011-08-02 23:42:39 C 23 15 46.40 +12 09 28.5 u C01
2011-08-02 23:44:02 C 23 15 46.47 +12 09 29.9 u C01
2011-08-02 23:45:27 C 23 15 46.53 +12 09 31.0 u C01
2011-08-02 23:46:50 C 23 15 46.61 +12 09 32.2 u C01
2011-08-02 23:48:13 C 23 15 46.66 +12 09 33.5 u C01
2011-08-02 23:49:37 C 23 15 46.74 +12 09 34.7 u C01
2011-08-20 23:34:13 C 23 40 10.12 +19 11 02.9 o 196
2011-08-20 23:54:05 C 23 40 11.35 +19 11 25.3 o 196
2011-08-21 00:13:56 C 23 40 12.55 +19 11 47.3 o 196
2011-08-28 21:09:40 C 23 53 52.18 +22 56 27.3 u A13
2011-08-28 21:45:25 C 23 53 54.85 +22 57 12.0 u A13
2011-08-28 22:28:38 C 23 53 58.12 +22 58 10.1 u 118
2011-08-28 22:36:49 C 23 53 58.75 +22 58 20.7 u 118
2011-08-28 22:49:55 C 23 53 59.74 +22 58 37.5 u 118
2011-08-30 19:44:40 C 23 57 45.92 +23 56 52.6 r 168
2011-08-30 19:47:40 C 23 57 46.19 +23 56 56.5 r 168
2011-08-30 21:08:40 C 23 57 52.88 +23 58 43.7 r 168
2011-08-30 21:12:50 C 23 57 53.21 +23 58 49.0 r 168
2011-08-30 22:23:55 C 23 57 59.08 +24 00 22.7 r 168
2011-08-30 22:27:55 C 23 57 59.39 +24 00 28.3 r 168
2011-08-31 20:31:26 C 23 59 58.18 +24 29 57.8 o 461
2011-08-31 20:34:34 C 23 59 58.47 +24 30 02.2 o 461
2011-08-31 22:32:15 C 00 00 08.54 +24 32 43.2 o 461
2011-08-31 22:35:22 C 00 00 08.82 +24 32 47.4 o 461
2011-08-31 22:41:52 C 00 00 09.39 +24 32 56.5 o 461
2011-08-31 22:44:59 C 00 00 09.63 +24 33 00.5 o 461
2011-08-31 22:51:29 C 00 00 10.19 +24 33 09.5 o 461
2011-08-31 22:54:35 C 00 00 10.46 +24 33 13.7 o 461
2011-09-06 23:25:54 C 00 15 06.00 +28 00 39.2 c A24
2011-09-06 23:26:36 C 00 15 06.08 +28 00 40.3 c A24
2011-09-08 04:00:59 C 00 18 35.46 +28 44 47.2 o H21
2011-09-08 04:12:42 C 00 18 36.85 +28 45 06.0 o H21
2011-09-08 04:23:01 C 00 18 38.08 +28 45 22.4 o H21
2011-09-08 04:29:19 C 00 18 38.84 +28 45 32.6 o H21
2011-09-08 04:39:43 C 00 18 40.06 +28 45 49.1 o H21
2011-09-08 04:45:30 C 00 18 40.75 +28 45 58.3 o H21
2011-09-08 04:56:32 C 00 18 42.05 +28 46 15.9 o H21
2011-09-08 05:07:48 C 00 18 43.38 +28 46 34.0 o H21
2011-09-08 05:13:42 C 00 18 44.08 +28 46 43.2 o H21
2011-09-08 05:25:55 C 00 18 45.53 +28 47 02.8 o H21
2011-09-08 05:31:03 C 00 18 46.12 +28 47 10.8 o H21
2011-09-08 05:42:12 C 00 18 47.45 +28 47 28.5 o H21
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)