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
2016-04-01 05:42:42 C 12 04 48.02 -07 16 42.5 L W84
2016-04-01 05:47:17 C 12 04 47.81 -07 16 40.8 L W84
2016-04-02 07:46:18 C 12 03 42.711 -07 07 20.78 L F51
2016-04-02 08:04:18 C 12 03 41.932 -07 07 14.25 L F51
2016-04-02 08:22:16 C 12 03 41.167 -07 07 07.76 L F51
2016-04-02 08:40:13 C 12 03 40.403 -07 07 01.31 L F51
2016-04-02 08:46:16 C 12 03 40.138 -07 06 59.08 L F51
2016-04-02 09:36:43 C 12 03 37.978 -07 06 40.97 L F51
2016-04-10 10:41:44 C 11 56 09.672 -05 58 57.11 L F51
2016-04-10 11:01:00 C 11 56 08.975 -05 58 50.38 L F51
2016-04-10 11:19:47 C 11 56 08.288 -05 58 44.12 L F51
2016-04-10 11:38:56 C 11 56 07.585 -05 58 37.71 L F51
2018-07-15 07:04:26 C 18 40 19.28 -13 36 12.8 U I41
2018-07-15 07:18:14 C 18 40 18.46 -13 36 12.7 U I41
2018-07-16 06:53:41 C 18 38 55.58 -13 36 16.7 U I41
2018-07-16 07:30:31 C 18 38 53.38 -13 36 16.8 U I41
2018-12-31 02:01:11 C 21 58 47.20 -09 25 28.4 I41
2018-12-31 02:08:23 C 21 58 48.26 -09 25 24.0 I41
2019-01-03 01:57:46 C 22 09 31.70 -08 40 58.0 I41
2019-01-03 02:04:50 C 22 09 32.78 -08 40 53.7 I41
2019-01-03 02:11:55 C 22 09 33.80 -08 40 48.8 I41
2019-01-04 02:07:22 C 22 13 10.83 -08 25 29.2 I41
2019-01-04 02:14:21 C 22 13 11.87 -08 25 25.1 I41
2019-01-28 02:13:49 C 23 46 37.03 -01 08 08.5 U I41
2019-01-28 02:13:49 C 23 46 37.03 -01 08 08.5 I41
2019-01-28 02:20:55 C 23 46 38.26 -01 08 02.5 U I41
2019-01-28 02:20:55 C 23 46 38.26 -01 08 02.5 I41
2019-01-28 02:28:02 C 23 46 39.46 -01 07 56.2 U I41
2019-01-28 02:28:02 C 23 46 39.46 -01 07 56.2 I41
2019-01-28 02:35:09 C 23 46 40.68 -01 07 50.0 U I41
2019-01-28 02:35:09 C 23 46 40.68 -01 07 50.0 I41
2020-04-19 10:01:44 C 13 31 45.915 -12 47 50.33 U F51
2020-04-19 10:18:57 C 13 31 45.204 -12 47 46.25 U F51
2020-04-19 10:36:06 C 13 31 44.517 -12 47 41.20 U F51
2020-04-19 10:53:17 C 13 31 43.813 -12 47 36.72 U F51
2020-04-20 08:53:28 C 13 30 51.853 -12 41 32.86 U F51
2020-04-20 09:11:37 C 13 30 51.109 -12 41 28.02 U F51
2020-04-20 09:29:44 C 13 30 50.384 -12 41 23.00 U F51
2020-04-20 09:47:51 C 13 30 49.662 -12 41 17.88 U F51
2020-04-21 08:40:59 C 13 29 55.924 -12 35 00.06 U F51
2020-04-21 08:58:22 C 13 29 55.220 -12 34 54.96 U F51
2020-04-21 09:15:42 C 13 29 54.529 -12 34 50.18 U F51
2020-04-21 09:33:01 C 13 29 53.848 -12 34 45.78 U F51
2020-04-22 09:09:50 C 13 28 58.764 -12 28 15.96 U F51
2020-04-22 09:26:34 C 13 28 58.105 -12 28 11.53 U F51
2020-04-22 09:43:18 C 13 28 57.428 -12 28 06.74 U F51
2020-04-22 10:00:02 C 13 28 56.773 -12 28 02.57 U F51
2021-06-30 07:25:57 C 15 44 27.522 -16 33 18.10 U F51
2021-06-30 07:42:18 C 15 44 27.085 -16 33 16.50 U F51
2021-06-30 07:58:41 C 15 44 26.609 -16 33 15.06 U F51
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)