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
2019-09-27 02:59:30 C 02 51 08.34 +29 06 03.9 q 160
2019-09-27 03:02:19 C 02 51 07.98 +29 06 02.1 q 160
2019-09-27 03:05:06 C 02 51 07.62 +29 05 59.2 q 160
2019-09-27 13:32:42 C 02 49 56.72 +28 58 41.8 V T08
2019-09-27 13:40:29 C 02 49 55.74 +28 58 36.0 V T08
2019-09-27 13:54:55 C 02 49 53.92 +28 58 25.2 V T08
2019-09-27 13:59:45 C 02 49 53.31 +28 58 21.6 V T08
2019-09-28 08:15:01 C 02 47 52.47 +28 44 52.7 V 703
2019-09-28 08:22:33 C 02 47 51.58 +28 44 47.5 V 703
2019-09-28 08:32:53 C 02 47 50.32 +28 44 40.3 V 703
2019-09-29 10:13:51 C 02 44 59.13 +28 25 52.9 V 703
2019-09-29 10:21:20 C 02 44 58.23 +28 25 47.3 V 703
2019-09-29 10:28:50 C 02 44 57.33 +28 25 41.7 V 703
2019-09-29 10:36:19 C 02 44 56.43 +28 25 36.3 V 703
2019-09-29 13:26:43 C 02 44 37.91 +28 23 39.7 V T05
2019-09-29 13:34:59 C 02 44 36.90 +28 23 33.6 V T05
2019-09-29 13:52:54 C 02 44 34.72 +28 23 19.9 V T05
2019-09-29 14:03:52 C 02 44 33.40 +28 23 11.6 V T05
2019-10-01 08:09:11 C 02 40 04.68 +27 52 05.3 V 703
2019-10-01 08:16:41 C 02 40 03.86 +27 51 59.8 V 703
2019-10-01 08:24:12 C 02 40 02.94 +27 51 54.6 V 703
2019-10-01 08:31:44 C 02 40 02.07 +27 51 49.1 V 703
2019-10-01 12:27:22 C 02 39 36.64 +27 49 04.6 V T08
2019-10-01 12:49:34 C 02 39 34.03 +27 48 48.1 V T08
2019-10-01 13:01:09 C 02 39 32.68 +27 48 39.4 V T08
2019-10-03 02:28:56 C 02 35 39.81 +27 20 40.3 q 160
2019-10-03 02:31:57 C 02 35 39.47 +27 20 37.9 q 160
2019-10-03 02:34:53 C 02 35 39.15 +27 20 35.7 q 160
2019-10-03 18:55:50 C 02 34 01.70 +27 08 19.1 q 168
2019-10-03 19:04:50 C 02 34 00.74 +27 08 12.7 q 168
2019-10-03 19:16:50 C 02 33 59.47 +27 08 04.1 q 168
2019-10-04 01:27:07 C 02 33 21.18 +27 03 40.8 q 160
2019-10-04 01:30:05 C 02 33 20.81 +27 03 37.1 q 160
2019-10-04 01:33:06 C 02 33 20.54 +27 03 34.9 q 160
2019-10-04 16:22:50 C 02 31 53.88 +26 52 20.0 q 168
2019-10-04 17:28:50 C 02 31 47.24 +26 51 33.4 q 168
2019-10-04 18:32:50 C 02 31 40.67 +26 50 48.1 q 168
2019-10-05 07:57:48 C 02 30 21.29 +26 41 08.3 V 703
2019-10-05 08:05:22 C 02 30 20.49 +26 41 02.8 V 703
2019-10-05 08:12:57 C 02 30 19.67 +26 40 57.8 V 703
2019-10-05 08:20:31 C 02 30 18.85 +26 40 51.6 V 703
2019-10-05 12:48:40 C 02 29 51.83 +26 37 40.9 V T08
2019-10-05 12:58:28 C 02 29 50.78 +26 37 33.3 V T08
2019-10-05 13:03:44 C 02 29 50.21 +26 37 29.4 V T08
2019-10-05 13:24:35 C 02 29 47.96 +26 37 13.5 V T08
2019-10-05 21:48:57 C 02 29 01.57 +26 30 42.0 V 108
2019-10-05 21:52:11 C 02 29 01.23 +26 30 38.9 V 108
2019-10-05 21:53:15 C 02 29 01.13 +26 30 38.6 V 108
2019-10-05 21:55:24 C 02 29 00.90 +26 30 37.0 V 108
2019-10-05 21:57:33 C 02 29 00.68 +26 30 35.8 V 108
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)