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
2011-11-29 00:56:45 C 09 15 21.36 +01 03 47.2 u C01
2011-11-29 00:58:07 C 09 15 21.40 +01 03 45.9 u C01
2011-11-29 00:59:31 C 09 15 21.43 +01 03 44.6 u C01
2011-12-18 10:39:32 C 09 15 54.73 -03 33 49.5 t H47
2011-12-18 10:46:30 C 09 15 54.53 -03 33 51.3 t H47
2011-12-18 10:53:43 C 09 15 54.29 -03 33 53.8 t H47
2011-12-18 11:06:59 C 09 15 53.89 -03 33 57.6 t H47
2011-12-19 09:35:22 C 09 15 19.59 -03 40 10.2 t H47
2011-12-19 09:43:52 C 09 15 19.28 -03 40 12.6 t H47
2011-12-19 09:51:03 C 09 15 19.05 -03 40 14.4 t H47
2011-12-19 10:12:12 C 09 15 18.33 -03 40 19.8 t H47
2011-12-27 08:50:39 C 09 08 28.10 -04 07 18.0 r 703
2011-12-27 09:01:09 C 09 08 27.52 -04 07 17.5 r 703
2011-12-27 09:11:46 C 09 08 27.09 -04 07 17.7 r 703
2011-12-27 09:22:16 C 09 08 26.52 -04 07 18.9 r 703
2011-12-31 08:40:22 C 09 03 56.55 -04 04 05.1 u 448
2011-12-31 08:44:27 C 09 03 56.32 -04 04 04.7 u 448
2011-12-31 08:48:33 C 09 03 56.09 -04 04 04.3 u 448
2011-12-31 08:53:09 C 09 03 55.83 -04 04 04.0 u 448
2011-12-31 08:58:03 C 09 03 55.56 -04 04 03.5 u 448
2012-01-03 07:22:25 C 09 00 16.38 -03 54 56.3 r 703
2012-01-03 07:34:45 C 09 00 15.66 -03 54 54.6 r 703
2012-01-03 07:46:55 C 09 00 14.94 -03 54 53.0 r 703
2012-01-03 07:59:15 C 09 00 14.22 -03 54 50.9 r 703
2012-01-18 08:22:25 C 08 39 41.70 -01 54 15.5 u H45
2012-01-18 08:26:29 C 08 39 41.45 -01 54 13.5 u H45
2012-01-18 08:30:38 C 08 39 41.19 -01 54 11.4 u H45
2012-01-18 08:32:25 C 08 39 41.08 -01 54 10.6 u H45
2012-01-18 08:34:06 C 08 39 40.99 -01 54 09.9 u H45
2012-01-19 08:10:10 C 08 38 22.42 -01 42 55.4 16.4 c 704
2012-01-19 08:28:59 C 08 38 21.35 -01 42 45.3 17.1 c 704
2012-01-19 08:47:59 C 08 38 20.16 -01 42 36.9 16.7 c 704
2012-01-19 09:06:37 C 08 38 19.05 -01 42 28.0 16.6 c 704
2012-01-19 09:25:15 C 08 38 17.92 -01 42 18.9 16.6 c 704
2012-01-19 09:47:47 C 08 38 16.36 -01 42 08.0 u H45
2012-01-19 09:50:04 C 08 38 16.25 -01 42 07.2 u H45
2012-01-19 09:53:27 C 08 38 16.03 -01 42 05.2 u H45
2012-01-19 10:12:52 C 08 38 14.91 -01 41 56.1 u H45
2012-01-19 10:15:05 C 08 38 14.75 -01 41 54.5 u H45
2012-01-20 06:54:38 C 08 37 07.82 -01 31 48.3 r 703
2012-01-20 07:01:58 C 08 37 07.39 -01 31 44.5 r 703
2012-01-20 07:09:15 C 08 37 06.96 -01 31 41.0 r 703
2012-01-20 07:16:39 C 08 37 06.49 -01 31 37.1 r 703
2012-01-24 08:46:50 C 08 31 58.34 -00 41 28.8 u H45
2012-01-24 08:49:17 C 08 31 58.22 -00 41 27.5 u H45
2012-01-24 08:55:02 C 08 31 57.92 -00 41 24.5 u H45
2012-01-24 08:57:28 C 08 31 57.79 -00 41 23.1 u H45
2012-01-24 09:01:31 C 08 31 57.57 -00 41 21.1 u H45
2012-01-30 07:06:08 C 08 25 24.76 +00 36 21.4 u H45
2012-01-30 07:12:33 C 08 25 24.47 +00 36 25.1 u H45
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)