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
2018-01-16 08:58:07 C 08 35 55.146 +18 52 19.27 U F51
2018-01-16 09:14:55 C 08 35 54.257 +18 52 22.16 U F51
2019-04-04 11:36:04 C 14 20 48.760 -19 45 45.13 U F51
2019-04-04 11:52:51 C 14 20 48.274 -19 45 46.27 U F51
2019-04-04 12:09:39 C 14 20 47.785 -19 45 47.46 U F51
2019-04-04 12:26:27 C 14 20 47.294 -19 45 48.60 U F51
2019-04-14 07:54:22 C 14 12 17.20 -19 51 16.6 V 703
2019-04-14 08:02:15 C 14 12 16.79 -19 51 16.7 V 703
2019-04-14 08:10:07 C 14 12 16.40 -19 51 16.6 V 703
2019-04-14 08:18:00 C 14 12 15.97 -19 51 15.9 V 703
2019-04-16 11:00:43 C 14 09 46.95 -19 48 59.1 q E89
2019-04-16 11:29:20 C 14 09 45.43 -19 48 58.5 q E89
2019-04-22 12:37:35 C 14 01 20.40 -19 36 13.5 V T08
2019-04-22 12:50:25 C 14 01 19.58 -19 36 13.2 V T08
2019-04-22 13:03:18 C 14 01 18.57 -19 36 10.2 V T08
2019-04-22 13:16:46 C 14 01 17.73 -19 36 07.8 V T08
2019-04-24 09:53:01 C 13 58 21.71 -19 29 51.9 V T05
2019-04-24 10:03:40 C 13 58 20.94 -19 29 50.0 V T05
2019-04-24 10:10:06 C 13 58 20.47 -19 29 48.6 V T05
2019-04-24 10:28:24 C 13 58 19.09 -19 29 45.9 V T05
2019-04-26 06:20:48 C 13 55 15.89 -19 22 27.9 V G96
2019-04-26 06:28:11 C 13 55 15.32 -19 22 26.5 V G96
2019-04-26 06:35:35 C 13 55 14.78 -19 22 25.3 V G96
2019-04-26 06:42:59 C 13 55 14.20 -19 22 24.0 V G96
2019-04-26 10:48:33 C 13 54 56.29 -19 21 36.5 V T08
2019-04-26 11:00:31 C 13 54 55.37 -19 21 34.3 V T08
2019-04-26 11:11:48 C 13 54 54.53 -19 21 32.0 V T08
2019-04-26 11:23:46 C 13 54 53.62 -19 21 30.4 V T08
2019-04-27 22:31:18 C 13 52 20.11 -19 14 46.5 V C95
2019-04-27 22:34:33 C 13 52 19.88 -19 14 45.8 V C95
2019-04-27 22:41:01 C 13 52 19.36 -19 14 44.0 V C95
2019-04-27 22:44:18 C 13 52 19.09 -19 14 44.1 V C95
2019-05-01 07:59:51 C 13 46 03.08 -18 56 07.1 V 703
2019-05-01 08:07:32 C 13 46 02.46 -18 56 04.7 V 703
2019-05-01 08:15:13 C 13 46 01.79 -18 56 03.3 V 703
2019-05-01 08:22:54 C 13 46 01.15 -18 56 00.9 V 703
2019-05-02 10:30:45 C 13 43 55.49 -18 49 09.7 V T05
2019-05-02 10:44:06 C 13 43 54.35 -18 49 05.7 V T05
2019-05-02 10:50:50 C 13 43 53.77 -18 49 04.0 V T05
2019-05-02 10:58:07 C 13 43 53.12 -18 49 02.0 V T05
2019-05-02 11:04:14 C 13 43 52.60 -18 49 00.0 V T05
2019-05-02 11:12:15 C 13 43 51.92 -18 48 58.0 V T05
2019-05-02 11:18:57 C 13 43 51.33 -18 48 56.2 V T05
2019-05-02 11:32:20 C 13 43 50.20 -18 48 52.7 V T05
2019-05-04 07:37:13 C 13 40 13.33 -18 36 29.3 V G96
2019-05-04 07:44:37 C 13 40 12.68 -18 36 27.0 V G96
2019-05-04 07:52:01 C 13 40 12.03 -18 36 24.8 V G96
2019-05-04 07:59:26 C 13 40 11.38 -18 36 22.6 V G96
2019-05-05 07:31:56 C 13 38 13.40 -18 29 16.7 V 703
2019-05-05 07:39:39 C 13 38 12.73 -18 29 13.7 V 703
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)