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
2023-02-13 22:51:34 C 11 01 45.281 -05 58 11.75 V M22
2023-02-15 06:29:58 C 10 59 59.215 -05 46 23.27 V W68
2023-02-15 06:35:11 C 10 59 58.934 -05 46 20.71 V W68
2023-02-15 07:21:35 C 10 59 56.246 -05 46 03.29 V W68
2023-02-15 07:32:39 C 10 59 55.634 -05 45 58.72 V W68
2023-02-19 06:09:27 C 10 54 34.186 -05 08 07.66 V W68
2023-02-19 06:15:42 C 10 54 33.794 -05 08 05.71 V W68
2023-02-19 07:06:30 C 10 54 30.775 -05 07 44.69 V W68
2023-02-19 07:16:58 C 10 54 30.154 -05 07 39.40 V W68
2023-02-20 17:55:04 C 10 52 31.69 -04 53 07.9 V D29
2023-02-20 18:15:25 C 10 52 30.49 -04 52 59.3 V D29
2023-02-20 18:35:47 C 10 52 29.29 -04 52 50.4 V D29
2023-02-23 04:15:12 C 10 49 12.802 -04 27 27.83 V W68
2023-02-23 04:17:48 C 10 49 12.629 -04 27 27.00 V W68
2023-02-23 05:08:55 C 10 49 09.602 -04 27 04.18 V W68
2023-02-23 05:16:24 C 10 49 09.187 -04 27 00.76 V W68
2023-02-27 16:13:09 C 10 43 10.79 -03 38 26.2 V D29
2023-02-27 16:33:30 C 10 43 09.63 -03 38 16.6 V D29
2023-02-27 16:53:52 C 10 43 08.49 -03 38 07.1 V D29
2023-02-28 22:08:12 C 10 41 33.211 -03 24 23.00 V M22
2023-02-28 22:12:45 C 10 41 32.911 -03 24 21.35 V M22
2023-02-28 22:41:58 C 10 41 31.282 -03 24 06.95 V M22
2023-02-28 22:51:46 C 10 41 30.770 -03 24 02.02 V M22
2023-03-03 06:49:47 C 10 38 32.478 -02 57 57.71 V 703
2023-03-03 06:57:24 C 10 38 32.017 -02 57 53.06 V 703
2023-03-03 07:12:39 C 10 38 31.103 -02 57 45.90 V 703
2023-03-14 05:06:29 C 10 26 16.224 -00 56 57.59 V G96
2023-03-14 05:14:33 C 10 26 15.882 -00 56 53.95 V G96
2023-03-14 05:22:37 C 10 26 15.547 -00 56 50.46 V G96
2023-03-14 05:30:42 C 10 26 15.205 -00 56 46.90 V G96
2023-03-21 08:14:48 C 10 20 09.251 +00 15 23.08 U F51
2023-03-21 08:30:51 C 10 20 08.728 +00 15 29.46 U F51
2023-03-21 08:46:59 C 10 20 08.199 +00 15 35.90 U F51
2023-03-25 07:06:39 C 10 17 30.189 +00 51 49.16 U F51
2023-03-25 07:26:13 C 10 17 29.663 +00 51 56.37 U F51
2023-03-25 07:45:54 C 10 17 29.134 +00 52 03.62 U F51
2023-03-25 08:05:42 C 10 17 28.602 +00 52 10.88 U F51
2023-04-13 08:03:57 C 10 12 04.183 +03 02 20.46 U F52
2023-04-13 08:04:54 C 10 12 04.171 +03 02 20.73 U F52
2023-04-13 08:19:57 C 10 12 04.157 +03 02 23.77 U F52
2023-04-13 08:20:54 C 10 12 04.152 +03 02 24.02 U F52
2023-04-13 08:35:48 C 10 12 04.143 +03 02 26.96 U F52
2023-04-13 08:36:47 C 10 12 04.139 +03 02 27.28 U F52
2023-04-13 08:51:35 C 10 12 04.126 +03 02 30.18 U F52
2023-04-13 08:52:33 C 10 12 04.115 +03 02 30.44 U F52
2025-07-26 07:20:52 C 16 54 25.560 -16 29 24.10 X F52
2025-07-26 07:36:30 C 16 54 25.156 -16 29 23.77 X F52
2025-07-26 07:52:06 C 16 54 24.745 -16 29 23.55 X F52
2025-07-28 06:38:03 C 16 53 18.007 -16 28 52.17 X F51
2025-07-28 06:49:19 C 16 53 17.733 -16 28 52.25 X 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)