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
2019-05-05 07:51:32 C 13 38 11.70 -18 29 10.2 V 703
2019-05-05 07:59:16 C 13 38 10.99 -18 29 07.8 V 703
2019-05-06 09:17:16 C 13 36 03.20 -18 21 06.4 V T05
2019-05-06 09:27:52 C 13 36 02.27 -18 21 02.8 V T05
2019-05-06 09:28:31 C 13 36 02.21 -18 21 02.8 V T05
2019-05-06 09:38:27 C 13 36 01.29 -18 20 59.4 V T05
2019-05-06 09:39:06 C 13 36 01.21 -18 20 59.2 V T05
2019-05-06 09:49:12 C 13 36 00.32 -18 20 55.9 V T05
2019-05-06 09:49:51 C 13 36 00.25 -18 20 56.1 V T05
2019-05-06 10:01:06 C 13 35 59.24 -18 20 52.0 V T05
2019-05-08 09:55:59 C 13 31 53.12 -18 04 46.7 V T08
2019-05-08 09:59:09 C 13 31 52.81 -18 04 45.6 V T08
2019-05-08 10:07:48 C 13 31 52.05 -18 04 42.7 V T08
2019-05-08 10:35:02 C 13 31 49.59 -18 04 32.8 V T08
2019-05-09 07:25:01 C 13 30 01.71 -17 57 14.8 V 703
2019-05-09 07:33:12 C 13 30 00.91 -17 57 11.6 V 703
2019-05-09 07:41:24 C 13 30 00.19 -17 57 08.6 V 703
2019-05-09 07:49:36 C 13 29 59.48 -17 57 05.7 V 703
2019-05-09 08:50:43 C 13 29 54.79 -17 56 40.7 V T08
2019-05-09 08:54:08 C 13 29 54.45 -17 56 39.8 V T08
2019-05-09 09:21:59 C 13 29 51.88 -17 56 29.7 V T08
2019-05-10 07:53:42 C 13 27 55.27 -17 48 17.1 V T05
2019-05-10 08:11:37 C 13 27 53.58 -17 48 10.4 V T05
2019-05-10 08:16:02 C 13 27 53.71 -17 47 47.1 q E89
2019-05-10 08:21:26 C 13 27 52.65 -17 48 06.4 V T05
2019-05-10 08:38:25 C 13 27 51.62 -17 47 38.9 q E89
2019-05-10 08:40:44 C 13 27 50.88 -17 47 59.4 V T05
2019-05-10 08:55:42 C 13 27 49.49 -17 47 53.8 V T05
2019-05-10 09:07:11 C 13 27 48.41 -17 47 49.6 V T05
2019-05-10 09:26:50 C 13 27 46.62 -17 47 42.5 V T05
2019-05-10 09:42:04 C 13 27 45.17 -17 47 36.6 V T05
2019-05-10 09:58:32 C 13 27 43.65 -17 47 30.1 V T05
2019-05-10 10:15:14 C 13 27 42.10 -17 47 23.9 V T05
2019-05-10 10:31:15 C 13 27 40.63 -17 47 17.7 V T05
2019-05-11 23:03:57 C 13 24 30.77 -17 33 29.3 o Z22
2019-05-11 23:17:46 C 13 24 29.47 -17 33 23.6 o Z22
2019-05-19 10:02:34 C 13 09 09.57 -16 18 07.1 q E89
2019-05-19 10:14:52 C 13 09 08.50 -16 18 01.2 q E89
2019-05-21 08:12:40 C 13 05 20.940 -15 57 47.56 U F52
2019-05-21 08:29:30 C 13 05 19.451 -15 57 39.84 U F52
2019-05-21 08:46:15 C 13 05 17.974 -15 57 32.13 U F52
2019-05-21 09:03:01 C 13 05 16.500 -15 57 24.40 U F52
2019-05-21 09:13:56 C 13 05 15.51 -15 57 19.2 V T08
2019-05-21 09:17:54 C 13 05 15.21 -15 57 17.4 V T08
2019-05-21 09:25:22 C 13 05 14.52 -15 57 13.0 V T08
2019-05-21 09:39:20 C 13 05 13.22 -15 57 07.3 V T08
2019-05-22 09:13:03 C 13 03 19.10 -15 46 25.4 V T05
2019-05-22 09:17:06 C 13 03 18.77 -15 46 23.5 V T05
2019-05-22 09:25:20 C 13 03 18.03 -15 46 19.9 V T05
2019-05-22 09:39:28 C 13 03 16.81 -15 46 13.0 V T05
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)