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
2019-10-06 02:39:49 C 02 28 31.38 +26 27 08.2 q 160
2019-10-06 02:42:48 C 02 28 31.06 +26 27 06.0 q 160
2019-10-06 02:45:45 C 02 28 30.76 +26 27 03.7 q 160
2019-10-06 16:56:50 C 02 27 12.04 +26 16 20.8 q 168
2019-10-06 17:57:50 C 02 27 06.07 +26 15 37.4 q 168
2019-10-06 19:07:50 C 02 26 59.16 +26 14 47.7 q 168
2019-10-07 01:50:34 C 02 26 20.46 +26 10 06.1 16.6 q J43
2019-10-07 02:02:48 C 02 26 19.21 +26 09 57.0 16.4 q J43
2019-10-07 02:15:00 C 02 26 17.94 +26 09 47.8 16.3 q J43
2019-10-07 02:27:12 C 02 26 16.68 +26 09 38.8 16.3 q J43
2019-10-07 07:28:20 C 02 25 49.73 +26 05 52.9 U I41
2019-10-07 07:29:00 C 02 25 49.67 +26 05 52.4 U I41
2019-10-07 10:20:07 C 02 25 33.71 +26 03 53.9 V T05
2019-10-07 10:20:09 C 02 25 32.11 +26 03 46.3 U I41
2019-10-07 10:20:47 C 02 25 32.05 +26 03 45.8 U I41
2019-10-07 10:22:47 C 02 25 31.84 +26 03 44.4 U I41
2019-10-07 10:23:26 C 02 25 31.78 +26 03 43.8 U I41
2019-10-07 10:28:08 C 02 25 32.89 +26 03 48.2 V T05
2019-10-07 10:32:18 C 02 25 32.46 +26 03 45.1 V T05
2019-10-07 10:46:24 C 02 25 29.50 +26 03 26.0 V 654
2019-10-07 10:47:55 C 02 25 30.83 +26 03 33.9 V T05
2019-10-07 10:52:11 C 02 25 28.91 +26 03 21.6 V 654
2019-10-07 11:02:48 C 02 25 29.30 +26 03 23.0 V T05
2019-10-07 11:25:42 C 02 25 25.52 +26 02 55.8 V 654
2019-10-07 11:31:29 C 02 25 24.94 +26 02 51.4 V 654
2019-10-08 01:33:27 C 02 24 07.94 +25 52 24.8 q 160
2019-10-08 01:36:22 C 02 24 07.66 +25 52 22.7 q 160
2019-10-08 01:39:15 C 02 24 07.33 +25 52 20.5 q 160
2019-10-08 08:19:42 C 02 23 31.44 +25 47 31.7 V 703
2019-10-08 08:27:23 C 02 23 30.67 +25 47 25.8 V 703
2019-10-08 08:35:02 C 02 23 29.93 +25 47 20.0 V 703
2019-10-08 08:42:43 C 02 23 29.15 +25 47 14.7 V 703
2019-10-08 09:17:51 C 02 23 27.368 +25 46 52.83 U F51
2019-10-08 09:32:59 C 02 23 25.858 +25 46 42.16 U F51
2019-10-08 09:48:03 C 02 23 24.350 +25 46 31.51 U F51
2019-10-08 10:03:08 C 02 23 22.836 +25 46 20.76 U F51
2019-10-08 22:37:13 C 02 22 14.48 +25 36 49.5 V 130
2019-10-08 22:40:04 C 02 22 14.21 +25 36 47.3 V 130
2019-10-08 22:42:56 C 02 22 13.93 +25 36 45.2 V 130
2019-10-09 00:11:26 C 02 22 05.33 +25 35 42.4 q 160
2019-10-09 00:14:20 C 02 22 05.03 +25 35 40.2 q 160
2019-10-09 00:17:17 C 02 22 04.76 +25 35 38.0 q 160
2019-10-09 06:25:04 C 02 21 32.89 +25 31 11.4 V G96
2019-10-09 06:32:38 C 02 21 32.16 +25 31 06.1 V G96
2019-10-09 06:40:12 C 02 21 31.42 +25 31 00.7 V G96
2019-10-09 06:47:45 C 02 21 30.69 +25 30 55.3 V G96
2019-10-09 09:27:25 C 02 21 16.73 +25 29 04.7 V T08
2019-10-09 09:28:16 C 02 21 16.674 +25 29 03.20 U F52
2019-10-09 09:31:28 C 02 21 16.37 +25 29 01.6 V T08
2019-10-09 09:46:12 C 02 21 14.91 +25 28 51.3 V T08
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)