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
2002-09-08 22:05:01 C 03 50 03.01 +41 25 05.7 c 151
2002-09-08 22:11:55 C 03 49 59.93 +41 24 49.4 c 151
2002-09-08 22:13:18 C 03 49 59.30 +41 24 46.4 c 151
2002-09-08 22:14:47 C 03 49 58.67 +41 24 43.0 c 151
2002-09-09 02:46:08 C 03 47 56.03 +41 14 17.5 c 118
2002-09-09 02:47:18 C 03 47 55.53 +41 14 14.8 c 118
2002-09-09 02:49:33 C 03 47 54.46 +41 14 09.0 c 118
2002-09-09 02:50:39 C 03 47 53.97 +41 14 06.4 c 118
2002-09-10 02:19:33 C 03 38 26.41 +40 17 42.1 i 071
2002-09-10 02:22:06 C 03 38 25.27 +40 17 36.4 i 071
2002-09-10 02:24:23 C 03 38 24.35 +40 17 30.8 i 071
2002-09-10 22:47:02 C 03 31 06.69 +39 29 23.3 c J93
2002-09-10 22:49:04 C 03 31 05.95 +39 29 19.3 c J93
2002-09-10 22:53:11 C 03 31 04.51 +39 29 10.7 c J93
2002-09-11 21:34:19 C 03 23 38.93 +38 38 53.6 c 118
2002-09-11 21:46:16 C 03 23 35.12 +38 38 29.5 c 118
2002-09-11 21:49:52 C 03 23 34.04 +38 38 22.6 c 118
2002-09-11 21:53:27 C 03 23 32.89 +38 38 15.1 c 118
2002-09-11 21:54:38 C 03 23 32.51 +38 38 12.9 c 118
2002-09-12 15:13:44 C 03 18 21.38 +38 01 50.0 d 379
2002-09-12 15:30:48 C 03 18 16.13 +38 01 17.3 d 379
2002-09-12 15:33:35 C 03 18 15.27 +38 01 12.1 d 379
2002-09-12 15:38:23 C 03 18 13.82 +38 01 02.4 d 379
2002-09-12 15:48:42 C 03 18 10.61 +38 00 42.3 d 379
2002-09-12 21:49:50 C 03 16 28.49 +37 47 37.8 c 118
2002-09-12 22:22:03 C 03 16 19.21 +37 46 36.1 c 118
2002-09-12 22:32:27 C 03 16 16.30 +37 46 07.7 c 127
2002-09-12 22:37:47 C 03 16 14.76 +37 45 57.5 c 127
2002-09-12 22:43:14 C 03 16 13.22 +37 45 47.0 c 127
2002-09-12 22:48:55 C 03 16 11.57 +37 45 36.0 c 127
2002-09-12 23:08:34 C 03 16 05.65 +37 45 06.8 c 118
2002-09-13 22:18:04 C 03 09 55.84 +36 58 27.9 c 215
2002-09-13 22:19:41 C 03 09 55.43 +36 58 25.1 c 215
2002-09-13 22:20:33 C 03 09 55.20 +36 58 23.4 c 215
2002-09-13 22:53:04 C 03 09 46.56 +36 57 19.1 c 127
2002-09-13 23:04:37 C 03 09 43.52 +36 56 58.2 c 127
2002-09-13 23:10:45 C 03 09 41.91 +36 56 46.8 c 127
2002-09-13 23:45:25 C 03 09 32.86 +36 55 47.8 c 151
2002-09-13 23:46:15 C 03 09 32.66 +36 55 46.5 c 151
2002-09-13 23:46:56 C 03 09 32.46 +36 55 45.1 c 151
2002-09-13 23:47:45 C 03 09 32.25 +36 55 43.7 c 151
2002-09-14 00:40:32 C 03 09 18.10 +36 54 03.1 c 196
2002-09-14 01:12:58 C 03 09 09.36 +36 53 02.4 c 196
2002-09-14 01:24:18 C 03 09 07.09 +36 52 50.0 d 170
2002-09-14 01:26:03 C 03 09 06.58 +36 52 46.9 d 170
2002-09-14 01:31:45 C 03 09 05.07 +36 52 36.3 d 170
2002-09-14 01:34:11 C 03 09 04.42 +36 52 31.9 d 170
2002-09-14 01:36:16 C 03 09 03.80 +36 52 27.9 d 170
2002-09-14 01:38:22 C 03 09 03.26 +36 52 23.6 d 170
2002-09-14 01:39:39 C 03 09 02.12 +36 52 12.1 c 196
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)