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
2019-05-23 09:42:25 C 13 01 22.56 -15 34 50.4 q E89
2019-05-23 09:57:58 C 13 01 21.25 -15 34 42.6 q E89
2019-05-24 07:38:12 C 12 59 39.485 -15 25 10.01 U F52
2019-05-24 08:07:36 C 12 59 36.993 -15 24 56.30 U F52
2019-05-24 10:52:54 C 12 59 23.19 -15 23 37.1 V T08
2019-05-24 10:59:47 C 12 59 22.63 -15 23 33.8 V T08
2019-05-24 11:16:15 C 12 59 21.27 -15 23 26.6 V T08
2019-05-24 11:26:56 C 12 59 20.40 -15 23 21.2 V T08
2019-05-25 06:20:24 C 12 57 55.019 -15 14 42.33 U F52
2019-05-25 06:43:17 C 12 57 51.98 -15 14 34.7 V 703
2019-05-25 06:53:45 C 12 57 52.238 -15 14 27.11 U F52
2019-05-25 06:54:38 C 12 57 51.06 -15 14 29.1 V 703
2019-05-25 07:05:57 C 12 57 50.14 -15 14 24.0 V 703
2019-05-25 07:10:47 C 12 57 50.819 -15 14 19.26 U F52
2019-05-25 07:17:16 C 12 57 49.22 -15 14 18.4 V 703
2019-05-25 07:36:10 C 12 57 48.70 -15 14 07.0 V T08
2019-05-25 07:40:09 C 12 57 48.34 -15 14 05.2 V T08
2019-05-25 07:47:40 C 12 57 47.69 -15 14 01.8 V T08
2019-05-25 08:01:42 C 12 57 46.54 -15 13 55.5 V T08
2019-05-27 08:02:02 C 12 54 11.34 -14 51 46.8 V T05
2019-05-27 08:05:59 C 12 54 11.02 -14 51 44.9 V T05
2019-05-27 08:13:23 C 12 54 10.42 -14 51 41.5 V T05
2019-05-27 08:29:26 C 12 54 09.15 -14 51 34.1 V T05
2019-05-28 08:06:21 C 12 52 26.92 -14 40 41.4 V T08
2019-05-28 08:11:00 C 12 52 26.54 -14 40 39.1 V T08
2019-05-28 08:24:46 C 12 52 25.48 -14 40 32.3 V T08
2019-05-28 08:38:48 C 12 52 24.38 -14 40 26.0 V T08
2019-05-29 06:00:12 C 12 50 53.90 -14 30 41.8 V 703
2019-05-29 06:14:48 C 12 50 52.84 -14 30 34.9 V 703
2019-05-29 06:23:13 C 12 50 52.19 -14 30 30.3 V 703
2019-05-29 06:31:40 C 12 50 51.60 -14 30 26.5 V 703
2019-05-29 08:02:42 C 12 50 45.69 -14 29 42.3 V T08
2019-05-29 08:07:23 C 12 50 45.31 -14 29 39.8 V T08
2019-05-29 08:14:45 C 12 50 44.76 -14 29 37.0 V T08
2019-05-29 08:36:13 C 12 50 43.09 -14 29 26.0 V T08
2019-05-31 07:44:11 C 12 47 31.93 -14 07 59.2 V T05
2019-05-31 07:48:10 C 12 47 31.64 -14 07 57.5 V T05
2019-05-31 07:56:25 C 12 47 31.03 -14 07 53.5 V T05
2019-05-31 08:10:28 C 12 47 30.03 -14 07 46.9 V T05
2019-06-02 05:26:56 C 12 44 36.16 -13 47 32.5 V 703
2019-06-02 05:34:54 C 12 44 35.65 -13 47 28.6 V 703
2019-06-02 05:42:51 C 12 44 35.08 -13 47 25.4 V 703
2019-06-02 05:50:49 C 12 44 34.53 -13 47 21.7 V 703
2019-06-02 07:28:40 C 12 44 28.95 -13 46 34.0 V T08
2019-06-02 07:32:44 C 12 44 28.66 -13 46 32.3 V T08
2019-06-02 07:40:49 C 12 44 28.09 -13 46 29.2 V T08
2019-06-02 07:53:03 C 12 44 27.282 -13 46 23.66 U F52
2019-06-02 07:58:17 C 12 44 26.87 -13 46 20.9 V T08
2019-06-02 08:07:52 C 12 44 26.266 -13 46 16.89 U F52
2019-06-02 08:22:51 C 12 44 25.237 -13 46 10.09 U F52
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)