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
2002-09-14 02:05:54 C 03 08 55.05 +36 51 22.3 c 196
2002-09-14 20:40:07 C 03 04 28.52 +36 15 25.5 c 151
2002-09-14 20:41:39 C 03 04 28.20 +36 15 23.0 c 151
2002-09-14 20:49:20 C 03 04 26.38 +36 15 09.7 c 151
2002-09-14 20:50:14 C 03 04 26.20 +36 15 08.3 c 151
2002-09-14 20:50:59 C 03 04 26.01 +36 15 07.2 c 151
2002-09-14 20:52:07 C 03 04 25.74 +36 15 05.3 c 151
2002-09-14 20:53:57 C 03 04 25.33 +36 15 01.9 c 151
2002-09-14 20:54:47 C 03 04 25.13 +36 15 00.5 c 151
2002-09-14 20:55:37 C 03 04 24.91 +36 14 59.1 c 151
2002-09-14 20:56:34 C 03 04 24.71 +36 14 57.5 c 151
2002-09-16 06:51:45 C 02 56 56.27 +35 14 14.4 c 699
2002-09-16 07:22:13 C 02 56 49.48 +35 13 25.5 c 699
2002-09-16 07:52:39 C 02 56 42.69 +35 12 35.9 c 699
2002-09-16 08:23:05 C 02 56 35.88 +35 11 44.7 c 699
2002-09-17 18:01:46 C 02 49 57.40 +34 15 15.0 379
2002-09-17 18:04:31 C 02 49 56.81 +34 15 10.2 379
2002-09-17 18:07:12 C 02 49 56.24 +34 15 05.9 379
2002-09-17 18:09:29 C 02 49 55.79 +34 15 02.2 379
2002-09-17 21:15:01 C 02 49 25.65 +34 09 21.7 c 240
2002-09-17 21:19:12 C 02 49 24.86 +34 09 15.7 c 240
2002-09-17 21:28:20 C 02 49 23.14 +34 09 02.1 c 240
2002-09-17 21:32:31 C 02 49 22.37 +34 08 56.0 c 240
2002-09-17 22:30:21 C 02 49 11.20 +34 07 25.1 c 636
2002-09-17 22:32:59 C 02 49 10.72 +34 07 21.3 c 636
2002-09-17 22:35:37 C 02 49 10.23 +34 07 17.3 c 636
2002-09-17 22:38:16 C 02 49 09.69 +34 07 13.0 c 636
2002-09-19 15:03:29 C 02 42 10.00 +33 04 45.3 379
2002-09-19 15:05:45 C 02 42 09.59 +33 04 41.9 379
2002-09-19 15:10:37 C 02 42 08.74 +33 04 35.1 379
2002-09-21 22:32:27 C 02 33 43.37 +31 45 02.7 15.0 939
2002-09-21 22:43:33 C 02 33 41.65 +31 44 48.4 15.0 939
2002-09-21 22:51:52 C 02 33 40.39 +31 44 37.9 15.0 939
2002-09-22 00:26:14 C 02 33 25.69 +31 42 34.8 232
2002-09-22 00:28:52 C 02 33 25.28 +31 42 31.3 232
2002-09-22 00:30:10 C 02 33 25.07 +31 42 29.6 232
2002-09-22 00:32:47 C 02 33 24.66 +31 42 26.2 232
2002-09-22 00:53:40 C 02 33 21.40 +31 41 59.0 232
2002-09-22 00:55:50 C 02 33 21.07 +31 41 56.0 232
2002-09-22 01:25:01 C 02 33 16.73 +31 41 18.3 941
2002-09-22 01:26:17 C 02 33 16.49 +31 41 16.5 941
2002-09-22 01:27:32 C 02 33 16.29 +31 41 14.9 941
2002-09-22 01:28:48 C 02 33 16.09 +31 41 13.2 941
2002-09-22 01:30:02 C 02 33 15.90 +31 41 11.7 941
2002-09-22 11:09:57 C 02 31 52.46 +31 28 15.2 c 926
2002-09-22 11:11:26 C 02 31 52.17 +31 28 12.7 c 926
2002-09-22 11:12:58 C 02 31 51.92 +31 28 10.3 c 926
2002-09-22 11:15:05 C 02 31 51.64 +31 28 07.7 c 926
2002-09-22 11:16:33 C 02 31 51.39 +31 28 06.1 c 926
2002-09-22 11:18:04 C 02 31 51.16 +31 28 03.8 c 926
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)