141593 (2002 HK12)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5286540189 ± 1.47e-09
Semi-major axis (a)2.0022187484 AU ± 2.90e-10
Inclination (i)2.34839207° ± 7.71e-07
Long. of Asc. Node (Ω)306.97306043° ± 2.47e-05
Arg. of Perihelion (ω)2.27812696° ± 2.48e-05
Mean Anomaly (M)80.40266917° ± 4.58e-07
Mean Motion (n)0.3478924395°/day ± 7.56e-11
Perihelion dist (q)0.94373776 AU ± 2.95e-09
Aphelion dist (Q)3.06069974 AU ± 2.98e-09
Orbital Period2.83313511 yr ± 6.16e-10
Physical Parameters
H (abs. magnitude)18.32
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.333″
Uncertainty0
Orbit TypeApollo
MOID0.023961 AU
Observations Used1413
Radar Obs Used5
Oppositions22
Arc Total1985-2025
First Observation Used1985-06-11
Last Observation Used2025-11-28
Observations (1843)
Date Type RA Dec Mag Band Observatory
2005-11-29 05:38:01 C 05 04 06.03 +26 33 20.1 c 691
2005-12-02 03:16:43 C 04 58 47.78 +26 22 57.8 c 691
2005-12-02 03:41:45 C 04 58 45.87 +26 22 54.9 c 691
2005-12-02 04:06:48 C 04 58 43.96 +26 22 51.1 c 691
2005-12-06 03:13:40 C 04 51 40.16 +26 07 09.9 c 691
2005-12-06 03:38:47 C 04 51 38.27 +26 07 05.7 c 691
2005-12-06 04:03:55 C 04 51 36.45 +26 07 01.9 c 691
2005-12-10 03:56:08 C 04 44 50.35 +25 49 52.4 c 691
2005-12-10 04:21:15 C 04 44 48.61 +25 49 47.5 c 691
2005-12-10 04:46:21 C 04 44 46.85 +25 49 43.3 c 691
2005-12-28 05:03:14 C 04 21 18.28 +24 29 47.9 r G96
2005-12-28 05:31:48 C 04 21 17.13 +24 29 43.4 r G96
2005-12-28 05:41:20 C 04 21 16.77 +24 29 41.6 r G96
2005-12-28 05:51:12 C 04 21 16.38 +24 29 40.0 r G96
2015-01-13 08:21:28 C 07 51 52.210 +21 43 30.65 L F51
2015-01-13 09:00:24 C 07 51 50.044 +21 43 35.30 L F51
2015-01-13 09:19:53 C 07 51 48.992 +21 43 38.23 L F51
2016-02-10 12:38:11 C 12 29 55.194 -05 52 10.68 L F51
2016-02-10 12:56:49 C 12 29 54.951 -05 52 10.62 L F51
2016-02-10 13:15:30 C 12 29 54.723 -05 52 10.37 L F51
2016-03-10 09:43:45 C 12 08 17.216 -04 25 39.76 L F51
2016-03-10 10:01:26 C 12 08 16.294 -04 25 35.23 L F51
2016-03-10 10:19:04 C 12 08 15.361 -04 25 30.73 L F51
2016-03-10 10:36:39 C 12 08 14.444 -04 25 26.14 L F51
2016-03-13 06:15:47 C 12 04 42.64 -04 07 14.8 o 691
2016-03-13 06:30:11 C 12 04 41.85 -04 07 10.4 o 691
2016-03-13 06:44:15 C 12 04 41.09 -04 07 06.6 o 691
2016-03-13 10:13:24 C 12 04 29.798 -04 06 06.84 L F51
2016-03-13 10:35:03 C 12 04 28.593 -04 06 00.69 L F51
2016-03-13 10:56:45 C 12 04 27.390 -04 05 54.54 L F51
2016-03-13 11:18:24 C 12 04 26.173 -04 05 48.38 L F51
2016-03-28 03:13:01 C 11 43 44.98 -02 10 15.2 L W84
2016-03-28 03:17:36 C 11 43 44.69 -02 10 13.5 L W84
2016-03-28 03:22:11 C 11 43 44.40 -02 10 11.8 L W84
2016-03-28 03:26:47 C 11 43 44.11 -02 10 10.2 L W84
2016-03-28 03:31:24 C 11 43 43.82 -02 10 08.5 L W84
2016-04-01 06:28:38 C 11 37 40.75 -01 34 18.3 q G96
2016-04-01 06:34:37 C 11 37 40.37 -01 34 16.2 q G96
2016-04-01 06:40:37 C 11 37 40.00 -01 34 14.1 q G96
2016-04-01 06:46:36 C 11 37 39.62 -01 34 11.8 q G96
2016-04-02 07:40:22 C 11 36 09.487 -01 25 04.60 L F51
2016-04-02 07:58:22 C 11 36 08.363 -01 24 58.05 L F51
2016-04-02 08:16:21 C 11 36 07.245 -01 24 51.42 L F51
2016-04-02 08:34:19 C 11 36 06.119 -01 24 44.95 L F51
2016-04-26 04:08:04 C 11 08 06.00 +01 36 46.4 q G96
2016-04-26 04:13:58 C 11 08 05.79 +01 36 48.2 q G96
2016-04-26 04:19:51 C 11 08 05.59 +01 36 49.2 q G96
2016-04-26 04:25:45 C 11 08 05.36 +01 36 50.4 q G96
2018-01-16 08:24:39 C 08 35 56.808 +18 52 14.03 U F51
2018-01-16 08:41:22 C 08 35 55.968 +18 52 16.69 U F51
Radar Observations (5)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2002-08-19 18:15:00 97818.94 0.3 Hz 2380 -1 -1
2019-08-10 16:40:00 72355.3839 0.2 Hz 2380 -1 -1
2019-08-10 16:54:00 70647616.76 4 us 2380 -1 -1
2019-08-11 17:34:00 68188003.7 0.5 us 2380 -1 -1
2019-08-14 16:49:00 63309552.41 0.7 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)