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
2002-09-22 11:19:33 C 02 31 50.94 +31 28 01.4 c 926
2002-09-22 11:27:14 C 02 31 49.71 +31 27 50.6 17.3 c 926
2002-09-22 11:28:44 C 02 31 49.53 +31 27 48.5 17.3 c 926
2002-09-22 11:30:10 C 02 31 49.30 +31 27 46.9 16.4 c 926
2002-09-23 13:59:53 C 02 28 20.53 +30 52 43.5 379
2002-09-23 14:02:49 C 02 28 20.09 +30 52 39.7 379
2002-09-23 14:12:52 C 02 28 18.68 +30 52 27.5 379
2002-09-23 14:17:57 C 02 28 17.94 +30 52 21.5 379
2002-09-23 14:22:39 C 02 28 17.25 +30 52 15.4 379
2002-09-23 14:26:32 C 02 28 16.73 +30 52 11.0 379
2002-09-23 14:29:44 C 02 28 16.27 +30 52 06.6 379
2002-09-23 14:32:34 C 02 28 15.89 +30 52 03.5 379
2002-09-24 14:15:16 C 02 25 15.05 +30 21 55.1 379
2002-09-24 14:16:33 C 02 25 14.84 +30 21 53.8 379
2002-09-24 14:22:16 C 02 25 14.11 +30 21 47.8 379
2002-09-24 14:24:27 C 02 25 13.76 +30 21 44.1 379
2002-09-24 14:28:58 C 02 25 13.14 +30 21 38.7 379
2002-09-24 14:32:39 C 02 25 12.61 +30 21 34.9 379
2002-09-24 20:44:26 C 02 24 27.32 +30 13 25.3 c J93
2002-09-24 20:47:29 C 02 24 26.97 +30 13 20.6 c J93
2002-09-24 20:50:30 C 02 24 26.60 +30 13 16.9 c J93
2002-09-24 20:53:33 C 02 24 26.17 +30 13 12.8 c J93
2002-09-25 21:25:59 C 02 21 28.68 +29 43 23.4 c 084
2002-09-27 23:16:09 C 02 15 54.94 +28 45 33.4 939
2002-09-27 23:24:31 C 02 15 53.94 +28 45 24.2 939
2002-09-27 23:32:53 C 02 15 52.94 +28 45 15.0 939
2002-09-28 04:46:44 C 02 15 20.41 +28 39 03.3 c 642
2002-09-28 04:54:06 C 02 15 19.62 +28 38 55.5 c 642
2002-09-28 05:01:26 C 02 15 18.81 +28 38 47.7 c 642
2002-09-28 22:49:04 C 02 13 26.34 +28 19 05.5 c 196
2002-09-28 22:50:46 C 02 13 25.09 +28 18 58.5 c 084
2002-09-28 23:26:16 C 02 13 22.14 +28 18 26.4 c 196
2002-09-29 00:01:36 C 02 13 18.65 +28 17 55.8 939
2002-09-29 00:10:01 C 02 13 17.69 +28 17 46.0 939
2002-09-29 00:21:08 C 02 13 16.39 +28 17 33.6 939
2002-09-29 22:28:05 C 02 11 03.19 +27 53 17.3 c 196
2002-09-29 22:44:53 C 02 11 01.34 +27 53 00.7 c 240
2002-09-29 22:47:38 C 02 11 01.04 +27 52 57.8 c 240
2002-09-29 22:48:44 C 02 11 00.92 +27 52 56.7 c 240
2002-09-29 22:56:57 C 02 11 00.07 +27 52 47.4 c 196
2002-09-29 23:23:25 C 02 10 57.22 +27 52 19.8 c 196
2002-09-30 07:00:09 C 02 10 10.93 +27 44 17.9 c 785
2002-09-30 08:53:00 C 02 09 58.65 +27 42 15.4 c 785
2002-09-30 08:58:44 C 02 09 58.09 +27 42 09.4 c 785
2002-09-30 23:13:12 C 02 08 38.29 +27 26 54.8 d A20
2002-09-30 23:22:37 C 02 08 37.29 +27 26 45.0 d A20
2002-09-30 23:28:02 C 02 08 36.69 +27 26 39.2 d A20
2002-10-01 05:04:28 C 02 08 06.28 +27 20 42.3 c 642
2002-10-01 05:10:20 C 02 08 05.72 +27 20 36.3 c 642
2002-10-01 05:16:15 C 02 08 05.12 +27 20 30.7 c 642
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)