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
2002-05-04 05:47:41 C 13 19 47.20 -16 21 58.6 734
2002-05-05 04:11:41 C 13 17 53.69 -16 13 09.4 c 807
2002-05-05 04:27:56 C 13 17 52.24 -16 13 03.0 c 807
2002-05-05 04:44:11 C 13 17 50.80 -16 12 56.7 c 807
2002-05-05 12:29:46 C 13 17 11.817 -16 09 57.05 e 422
2002-05-05 12:31:30 C 13 17 11.652 -16 09 56.42 e 422
2002-05-05 12:34:58 C 13 17 11.357 -16 09 55.13 e 422
2002-05-05 12:39:40 C 13 17 10.66 -16 09 48.2 c 474
2002-05-05 12:45:00 C 13 17 10.19 -16 09 46.2 c 474
2002-05-05 12:51:50 C 13 17 09.64 -16 09 43.0 c 474
2002-05-06 02:21:50 C 13 16 01.50 -16 04 30.1 808
2002-05-06 02:33:00 C 13 16 00.50 -16 04 27.3 808
2002-05-06 05:35:16 C 13 15 45.13 -16 03 35.4 c 699
2002-05-06 05:57:06 C 13 15 43.22 -16 03 27.1 c 699
2002-05-06 06:18:57 C 13 15 41.25 -16 03 17.4 c 699
2002-05-06 06:40:42 C 13 15 39.36 -16 03 08.7 c 699
2002-05-06 07:57:57 C 13 15 32.32 -16 02 37.2 m 333
2002-05-06 08:07:00 C 13 15 31.57 -16 02 32.5 m 333
2002-05-06 08:15:58 C 13 15 30.74 -16 02 29.5 m 333
2002-05-08 11:13:32 C 13 11 11.76 -15 41 46.0 18.5 c 608
2002-05-08 11:29:29 C 13 11 10.36 -15 41 38.9 18.5 c 608
2002-05-08 11:45:29 C 13 11 08.94 -15 41 32.2 18.5 c 608
2002-05-09 05:26:14 C 13 09 40.27 -15 34 12.8 17.6 c 704
2002-05-09 05:43:47 C 13 09 38.70 -15 34 05.3 18.1 c 704
2002-05-09 05:48:52 C 13 09 38.41 -15 34 03.8 c 670
2002-05-09 06:01:23 C 13 09 37.12 -15 33 57.5 17.6 c 704
2002-05-09 06:18:50 C 13 09 35.56 -15 33 50.4 17.9 c 704
2002-05-09 06:36:59 C 13 09 33.98 -15 33 42.9 17.9 c 704
2002-05-09 07:08:49 C 13 09 31.28 -15 33 29.4 c 670
2002-05-09 10:15:39 C 13 09 15.26 -15 32 07.7 20.4 d 608
2002-05-09 10:31:09 C 13 09 13.92 -15 32 00.9 21.0 d 608
2002-05-09 10:47:34 C 13 09 12.43 -15 31 53.5 20.6 d 608
2002-05-10 03:07:30 C 13 07 50.65 -15 24 40.1 c 807
2002-05-10 03:18:45 C 13 07 49.66 -15 24 35.3 c 807
2002-05-10 03:30:00 C 13 07 48.65 -15 24 30.3 c 807
2002-05-10 10:11:09 C 13 07 15.69 -15 21 38.5 m 428
2002-05-10 10:17:31 C 13 07 15.05 -15 21 36.5 m 428
2002-05-11 05:22:54 C 13 05 38.90 -15 13 40.0 17.3 c 704
2002-05-11 05:44:15 C 13 05 37.00 -15 13 30.0 17.9 c 704
2002-05-11 06:07:14 C 13 05 35.00 -15 13 20.3 18.0 c 704
2002-05-11 06:28:47 C 13 05 33.11 -15 13 10.7 18.1 c 704
2002-05-11 06:51:04 C 13 05 31.18 -15 13 00.8 18.1 c 704
2002-05-14 05:54:12 C 12 59 41.11 -14 41 32.0 c 670
2002-05-14 07:12:53 C 12 59 34.26 -14 40 54.4 c 670
2002-05-15 08:29:50 C 12 57 32.81 -14 29 26.9 18.4 c 608
2002-05-15 08:45:23 C 12 57 31.60 -14 29 19.7 18.3 c 608
2002-05-15 09:00:29 C 12 57 30.31 -14 29 12.7 18.3 c 608
2002-05-15 22:04:21 C 12 56 28.05 -14 23 22.6 c 118
2002-05-15 22:07:18 C 12 56 27.84 -14 23 21.3 c 118
2002-05-15 22:15:40 C 12 56 27.09 -14 23 17.3 c 118
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)