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
2002-10-12 23:42:57 C 01 46 25.40 +22 59 45.5 939
2002-10-12 23:45:31 C 01 46 25.20 +22 59 42.4 d 170
2002-10-12 23:51:19 C 01 46 24.84 +22 59 38.9 939
2002-10-13 13:18:52 C 01 45 37.21 +22 48 49.2 379
2002-10-13 13:31:23 C 01 45 36.42 +22 48 38.9 379
2002-10-13 22:17:46 C 01 45 04.79 +22 41 27.1 c 084
2002-10-14 12:00:30 C 01 44 19.13 +22 30 46.8 367
2002-10-14 12:04:59 C 01 44 18.85 +22 30 43.5 367
2002-10-14 12:09:30 C 01 44 18.55 +22 30 40.0 367
2002-10-14 21:49:45 C 01 43 44.69 +22 22 58.9 c 084
2002-10-15 08:00:49 C 01 43 10.51 +22 15 19.7 16.4 c 704
2002-10-15 08:25:11 C 01 43 09.00 +22 15 00.6 17.0 c 704
2002-10-15 08:49:32 C 01 43 07.46 +22 14 41.2 17.2 c 704
2002-10-15 09:13:55 C 01 43 05.96 +22 14 22.0 17.8 c 704
2002-10-15 09:38:19 C 01 43 04.45 +22 14 02.8 17.8 c 704
2002-10-16 13:28:14 C 01 41 37.74 +21 53 00.5 379
2002-10-16 13:59:19 C 01 41 35.92 +21 52 37.1 379
2002-10-17 06:38:05 C 01 40 45.15 +21 40 18.9 17.8 c 704
2002-10-17 07:01:38 C 01 40 43.73 +21 40 01.0 17.5 c 704
2002-10-17 07:25:15 C 01 40 42.38 +21 39 43.6 17.0 c 704
2002-10-18 22:50:23 C 01 38 49.45 +21 11 22.7 d 560
2002-10-18 22:52:38 C 01 38 49.34 +21 11 21.3 d 560
2002-10-18 22:54:52 C 01 38 49.21 +21 11 19.6 d 560
2002-10-18 22:57:06 C 01 38 49.13 +21 11 18.2 d 560
2002-10-19 00:57:35 C 01 38 43.00 +21 09 55.7 941
2002-10-19 00:59:54 C 01 38 42.98 +21 09 54.1 941
2002-10-19 01:02:11 C 01 38 42.76 +21 09 52.8 941
2002-10-19 01:04:30 C 01 38 42.69 +21 09 51.0 941
2002-10-19 01:06:49 C 01 38 42.54 +21 09 49.5 941
2002-10-19 22:34:03 C 01 37 45.97 +20 54 58.9 d 176
2002-10-19 22:42:04 C 01 37 45.57 +20 54 53.2 d 176
2002-10-19 22:46:01 C 01 37 45.37 +20 54 50.4 d 176
2002-10-19 22:50:00 C 01 37 45.17 +20 54 47.5 d 176
2002-10-19 22:50:44 C 01 37 45.21 +20 54 47.4 939
2002-10-19 22:54:00 C 01 37 44.97 +20 54 44.6 d 176
2002-10-19 22:59:04 C 01 37 44.82 +20 54 41.8 939
2002-10-19 23:10:11 C 01 37 44.28 +20 54 34.3 939
2002-10-25 21:33:54 C 01 32 28.21 +19 24 40.3 d 170
2002-10-25 21:35:26 C 01 32 28.13 +19 24 39.7 d 170
2002-10-25 21:40:11 C 01 32 28.07 +19 24 36.6 d 170
2002-10-26 02:00:16 C 01 32 18.66 +19 22 07.2 941
2002-10-26 02:03:33 C 01 32 18.51 +19 22 05.2 941
2002-10-26 02:06:52 C 01 32 18.42 +19 22 03.2 941
2002-10-26 02:10:12 C 01 32 18.27 +19 22 01.3 941
2002-10-26 18:58:18 C 01 31 50.67 +19 12 25.0 d J87
2002-10-26 19:37:11 C 01 31 49.41 +19 12 04.2 d J87
2002-10-26 20:15:04 C 01 31 48.25 +19 11 42.9 d J87
2002-10-27 22:56:10 C 01 31 02.80 +18 56 53.8 c 084
2002-10-30 11:36:34 C 01 29 35.47 +18 25 30.3 o 608
2002-10-30 11:52:14 C 01 29 35.05 +18 25 22.2 o 608
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)