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
2011-10-31 01:37:31 C 08 10 32.57 +20 29 10.8 u C73
2011-10-31 01:38:21 C 08 10 32.70 +20 29 08.8 u C73
2011-10-31 01:39:06 C 08 10 32.75 +20 29 06.7 u C73
2011-11-01 09:16:00 C 08 16 27.48 +19 05 11.4 15.7 c 704
2011-11-01 09:33:40 C 08 16 30.50 +19 04 26.5 15.8 c 704
2011-11-01 09:51:21 C 08 16 33.46 +19 03 41.7 15.8 c 704
2011-11-01 10:09:18 C 08 16 36.48 +19 02 55.5 16.0 c 704
2011-11-01 10:27:01 C 08 16 39.46 +19 02 10.2 16.0 c 704
2011-11-02 08:31:32 C 08 20 29.80 +18 05 41.9 o H21
2011-11-02 08:36:50 C 08 20 30.66 +18 05 29.0 o H21
2011-11-02 08:39:29 C 08 20 31.09 +18 05 22.3 o H21
2011-11-02 08:42:14 C 08 20 31.52 +18 05 15.3 o H21
2011-11-02 08:44:49 C 08 20 31.92 +18 05 09.0 o H21
2011-11-02 10:35:43 C 08 20 50.35 +18 00 37.3 15.6 c 704
2011-11-02 10:53:30 C 08 20 53.14 +17 59 53.6 15.7 c 704
2011-11-02 11:11:19 C 08 20 55.91 +17 59 08.6 15.9 c 704
2011-11-02 11:29:04 C 08 20 58.72 +17 58 25.0 15.5 c 704
2011-11-02 11:46:52 C 08 21 01.43 +17 57 40.8 15.5 c 704
2011-11-15 00:54:02 C 08 57 06.83 +07 54 43.5 u 160
2011-11-15 00:56:12 C 08 57 06.95 +07 54 40.4 u 160
2011-11-15 00:58:25 C 08 57 07.18 +07 54 36.5 u 160
2011-11-16 00:26:25 C 08 59 00.40 +07 18 26.1 u 160
2011-11-16 00:30:27 C 08 59 00.72 +07 18 19.9 u 160
2011-11-16 00:34:27 C 08 59 01.01 +07 18 13.1 u 160
2011-11-17 01:39:06 C 09 00 54.61 +06 40 59.9 u 160
2011-11-17 01:43:08 C 09 00 54.86 +06 40 53.7 u 160
2011-11-17 01:47:09 C 09 00 55.16 +06 40 47.7 u 160
2011-11-19 01:27:33 C 09 04 13.23 +05 33 51.3 u 160
2011-11-19 01:31:32 C 09 04 13.47 +05 33 45.7 u 160
2011-11-19 01:35:28 C 09 04 13.70 +05 33 40.4 u 160
2011-11-20 02:33:20 C 09 05 47.64 +05 00 32.2 u 160
2011-11-20 02:38:29 C 09 05 47.96 +05 00 28.1 u 160
2011-11-20 02:41:50 C 09 05 48.08 +05 00 22.4 u 160
2011-11-26 03:30:55 C 09 12 58.29 +02 11 46.3 i 071
2011-11-26 03:33:21 C 09 12 58.43 +02 11 44.2 i 071
2011-11-26 03:35:43 C 09 12 58.50 +02 11 41.7 i 071
2011-11-26 03:40:34 C 09 12 58.65 +02 11 36.7 i 071
2011-11-26 03:42:57 C 09 12 58.73 +02 11 34.2 i 071
2011-11-29 00:29:36 C 09 15 20.41 +01 04 14.0 u 089
2011-11-29 00:31:47 C 09 15 20.46 +01 04 12.3 u 089
2011-11-29 00:33:59 C 09 15 20.50 +01 04 10.2 u 089
2011-11-29 00:36:11 C 09 15 20.57 +01 04 08.0 u 089
2011-11-29 00:38:23 C 09 15 20.62 +01 04 06.0 u 089
2011-11-29 00:40:35 C 09 15 20.68 +01 04 03.9 u 089
2011-11-29 00:42:47 C 09 15 20.71 +01 04 02.1 u 089
2011-11-29 00:44:59 C 09 15 20.76 +01 03 59.8 u 089
2011-11-29 00:47:11 C 09 15 20.81 +01 03 57.7 u 089
2011-11-29 00:49:23 C 09 15 20.87 +01 03 56.0 u 089
2011-11-29 00:53:57 C 09 15 21.28 +01 03 49.9 u C01
2011-11-29 00:55:21 C 09 15 21.32 +01 03 48.5 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)