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
2021-06-30 08:15:02 C 15 44 26.156 -16 33 13.29 U F51
2021-07-05 07:33:12 C 15 41 28.799 -16 22 41.65 U F51
2021-07-05 07:51:11 C 15 41 28.382 -16 22 40.25 U F51
2021-07-05 08:09:09 C 15 41 27.955 -16 22 38.73 U F51
2022-05-28 10:55:20 C 23 24 42.214 +03 09 35.03 V G96
2022-05-28 11:00:11 C 23 24 42.732 +03 09 38.92 V G96
2022-05-28 11:05:02 C 23 24 43.261 +03 09 43.09 V G96
2022-05-28 11:09:53 C 23 24 43.794 +03 09 46.87 V G96
2022-07-27 14:01:25 C 03 07 25.931 +23 44 00.51 U F52
2022-07-27 14:08:43 C 03 07 27.477 +23 44 05.18 U F52
2022-07-27 14:16:04 C 03 07 29.017 +23 44 09.89 U F52
2022-07-27 14:23:23 C 03 07 30.552 +23 44 14.56 U F52
2022-09-27 11:19:58 C 08 16 47.824 +17 47 58.67 V G96
2022-09-27 11:28:17 C 08 16 49.152 +17 47 51.76 V G96
2022-09-27 11:36:35 C 08 16 50.459 +17 47 44.84 V G96
2022-09-27 11:44:53 C 08 16 51.776 +17 47 38.08 V G96
2022-10-02 14:48:43 C 08 35 51.628 +16 04 02.90 U F51
2022-10-02 14:55:53 C 08 35 52.690 +16 03 56.83 U F51
2022-10-02 15:03:08 C 08 35 53.758 +16 03 50.76 U F51
2022-10-21 11:40:47 C 09 35 56.839 +09 40 38.35 V 703
2022-10-21 11:47:53 C 09 35 57.678 +09 40 33.56 V 703
2022-10-21 12:02:05 C 09 35 59.399 +09 40 21.36 V 703
2022-10-31 14:44:30 C 10 02 33.911 +06 25 39.55 U F51
2022-10-31 14:52:14 C 10 02 34.690 +06 25 33.58 U F51
2022-10-31 14:59:54 C 10 02 35.458 +06 25 27.63 U F51
2022-10-31 15:07:35 C 10 02 36.232 +06 25 21.70 U F51
2022-11-06 11:58:39 C 10 16 23.927 +04 38 23.82 V 703
2022-11-06 12:05:21 C 10 16 24.517 +04 38 20.22 V 703
2022-11-06 12:12:03 C 10 16 25.126 +04 38 14.50 V 703
2022-11-06 12:18:44 C 10 16 25.810 +04 38 09.02 V 703
2022-11-19 12:42:43 C 10 43 00.844 +00 59 57.01 V G96
2022-11-19 12:46:44 C 10 43 01.146 +00 59 54.31 V G96
2022-11-19 12:50:45 C 10 43 01.441 +00 59 51.83 V G96
2022-11-19 12:54:46 C 10 43 01.751 +00 59 49.13 V G96
2022-11-21 10:42:47 C 10 46 28.225 +00 30 14.47 V 703
2022-11-21 10:50:26 C 10 46 28.747 +00 30 08.42 V 703
2022-11-21 11:05:43 C 10 46 29.885 +00 30 00.76 V 703
2022-12-10 12:34:33 C 11 14 11.296 -03 46 46.85 V G96
2022-12-10 12:41:58 C 11 14 11.623 -03 46 50.63 V G96
2022-12-10 12:49:24 C 11 14 11.965 -03 46 54.05 V G96
2022-12-10 12:56:52 C 11 14 12.311 -03 46 57.50 V G96
2022-12-11 04:01:02 C 11 14 54.39 -03 54 09.0 X C95
2022-12-11 04:33:01 C 11 14 55.85 -03 54 23.7 X C95
2022-12-22 10:43:37 C 11 24 59.555 -05 47 31.78 V 703
2022-12-22 10:51:19 C 11 24 59.756 -05 47 36.56 V 703
2022-12-22 10:59:01 C 11 24 59.933 -05 47 38.76 V 703
2022-12-22 11:06:44 C 11 25 00.145 -05 47 43.26 V 703
2022-12-28 00:47:52 C 11 28 08.124 -06 31 44.98 V M22
2022-12-28 01:22:51 C 11 28 08.702 -06 31 55.16 V M22
2022-12-28 01:27:23 C 11 28 08.779 -06 31 56.14 V M22
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)