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
2002-05-16 21:37:41 C 12 54 37.43 -14 12 38.8 c 246
2002-05-16 21:40:21 C 12 54 37.22 -14 12 36.2 c 246
2002-05-16 21:44:54 C 12 54 36.87 -14 12 34.5 c 246
2002-05-16 21:46:11 C 12 54 36.78 -14 12 34.2 c 246
2002-05-17 04:02:54 C 12 54 08.22 -14 09 39.5 18.1 c 644
2002-05-17 04:32:32 C 12 54 05.77 -14 09 26.2 17.8 c 644
2002-05-17 05:02:32 C 12 54 03.29 -14 09 12.6 17.6 c 644
2002-05-18 04:33:04 C 12 52 15.11 -13 58 27.0 c 711
2002-05-18 04:47:30 C 12 52 13.84 -13 58 19.6 c 711
2002-05-18 04:59:03 C 12 52 12.95 -13 58 15.2 c 711
2002-05-19 08:19:42 C 12 50 09.87 -13 45 43.7 18.4 c 608
2002-05-19 08:34:54 C 12 50 08.67 -13 45 36.0 18.3 c 608
2002-05-19 08:50:35 C 12 50 07.41 -13 45 29.3 18.0 c 608
2002-05-28 04:17:04 C 12 36 08.25 -12 11 52.2 c 448
2002-05-28 04:22:14 C 12 36 07.91 -12 11 49.5 c 448
2002-05-28 04:35:17 C 12 36 07.11 -12 11 43.9 c 448
2002-05-29 04:24:17 C 12 34 46.90 -12 01 46.2 c 670
2002-05-29 05:05:28 C 12 34 44.33 -12 01 28.6 c 670
2002-05-29 11:50:50 C 12 34 21.59 -11 58 10.9 c 474
2002-05-29 11:55:09 C 12 34 21.33 -11 58 09.3 c 474
2002-05-29 11:59:29 C 12 34 21.08 -11 58 07.4 c 474
2002-06-04 03:49:45 C 12 27 47.51 -11 05 36.2 18.1 c 704
2002-06-04 04:08:39 C 12 27 46.54 -11 05 28.6 18.3 c 704
2002-06-04 05:07:44 C 12 27 43.73 -11 05 07.2 17.8 c 704
2002-06-04 20:32:39 C 12 27 06.01 -10 59 35.1 c 118
2002-06-04 20:35:55 C 12 27 05.87 -10 59 34.3 c 118
2002-06-16 04:26:57 C 12 19 34.80 -09 37 17.0 c 858
2002-06-16 04:31:33 C 12 19 34.71 -09 37 16.2 c 858
2002-06-16 04:36:07 C 12 19 34.66 -09 37 15.7 c 858
2002-06-29 09:12:23 C 12 18 17.58 -08 35 19.6 e 428
2002-06-29 09:47:19 C 12 18 17.51 -08 35 13.8 e 428
2002-07-07 11:01:02 C 12 20 00.18 -08 05 00.0 19.4 m 422
2002-07-07 11:03:23 C 12 20 00.23 -08 04 58.4 19.3 m 422
2002-07-30 09:33:42 C 12 21 51.07 -04 40 47.3 m 413
2002-07-30 09:38:18 C 12 21 50.92 -04 40 43.8 m 413
2002-07-30 09:53:11 C 12 21 50.49 -04 40 31.6 m 413
2002-07-31 10:09:43 C 12 21 12.07 -04 19 16.9 m 413
2002-07-31 10:12:00 C 12 21 12.00 -04 19 14.7 m 413
2002-08-31 01:37:41 C 06 45 15.39 +47 46 22.1 d 176
2002-08-31 01:41:30 C 06 45 10.42 +47 46 27.9 d 176
2002-08-31 01:45:29 C 06 45 05.23 +47 46 33.9 d 176
2002-08-31 01:49:21 C 06 45 00.20 +47 46 39.8 d 176
2002-08-31 01:52:39 C 06 44 53.93 +47 46 53.3 c 118
2002-08-31 01:53:11 C 06 44 55.22 +47 46 45.6 d 176
2002-08-31 01:53:36 C 06 44 52.64 +47 46 54.3 c 118
2002-08-31 01:56:14 C 06 44 49.22 +47 46 58.1 c 118
2002-08-31 01:59:39 C 06 44 44.76 +47 47 03.2 c 118
2002-08-31 11:29:49 C 06 32 33.78 +47 55 10.2 c 848
2002-08-31 11:30:27 C 06 32 32.89 +47 55 11.0 c 848
2002-08-31 11:31:06 C 06 32 32.32 +47 55 11.0 c 848
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)