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
2002-10-30 12:07:57 C 01 29 34.64 +18 25 14.2 o 608
2002-10-31 06:03:33 C 01 29 13.71 +18 16 20.8 17.7 c 644
2002-10-31 06:33:36 C 01 29 12.94 +18 16 06.3 18.0 c 644
2002-10-31 07:03:52 C 01 29 12.17 +18 15 51.5 17.7 c 644
2002-11-01 22:56:17 C 01 28 28.80 +17 57 00.9 d 176
2002-11-01 23:04:14 C 01 28 28.63 +17 56 57.3 d 176
2002-11-01 23:12:14 C 01 28 28.45 +17 56 53.7 d 176
2002-11-01 23:16:12 C 01 28 28.37 +17 56 51.8 d 176
2002-11-01 23:24:12 C 01 28 28.19 +17 56 48.2 d 176
2002-11-01 23:27:49 C 01 28 28.27 +17 56 47.8 i 212
2002-11-01 23:39:00 C 01 28 28.01 +17 56 42.9 i 212
2002-11-03 06:01:18 C 01 28 00.23 +17 43 10.9 17.5 c 704
2002-11-03 06:25:55 C 01 27 59.76 +17 42 59.0 17.5 c 704
2002-11-03 07:14:54 C 01 27 58.85 +17 42 38.0 17.2 c 704
2002-11-03 07:39:17 C 01 27 58.39 +17 42 27.2 17.6 c 704
2002-11-05 21:50:47 C 01 27 15.93 +17 16 42.0 a 233
2002-11-05 22:08:36 C 01 27 15.62 +17 16 35.1 a 233
2002-11-05 22:20:07 C 01 27 15.42 +17 16 30.3 a 233
2002-11-05 22:31:23 C 01 27 15.29 +17 16 25.9 a 233
2002-11-05 22:48:08 C 01 27 15.01 +17 16 20.1 a 233
2002-11-08 05:44:18 C 01 26 52.31 +16 55 55.5 18.2 c 704
2002-11-08 06:09:32 C 01 26 52.09 +16 55 46.5 18.2 c 704
2002-11-08 06:34:28 C 01 26 51.86 +16 55 37.6 18.5 c 704
2002-11-08 06:59:35 C 01 26 51.61 +16 55 29.1 18.1 c 704
2002-11-08 07:24:40 C 01 26 51.41 +16 55 19.6 17.4 c 704
2002-11-12 05:13:56 C 01 26 43.85 +16 25 08.5 19.9 c 644
2002-11-12 05:41:33 C 01 26 43.63 +16 24 59.9 18.8 c 704
2002-11-12 05:44:06 C 01 26 43.75 +16 25 00.2 18.9 c 644
2002-11-12 06:06:19 C 01 26 43.50 +16 24 52.8 18.8 c 704
2002-11-12 06:14:22 C 01 26 43.67 +16 24 51.4 18.3 c 644
2002-11-12 06:31:09 C 01 26 43.44 +16 24 45.5 18.8 c 704
2002-11-12 06:56:08 C 01 26 43.45 +16 24 38.1 18.6 c 704
2002-11-12 07:21:06 C 01 26 43.44 +16 24 30.7 18.5 c 704
2002-11-13 03:38:05 C 01 26 47.48 +16 18 44.9 18.2 c 704
2002-11-13 04:03:25 C 01 26 47.43 +16 18 38.2 18.5 c 704
2002-11-13 04:28:49 C 01 26 47.44 +16 18 31.6 18.4 c 704
2002-11-13 04:53:40 C 01 26 47.39 +16 18 24.2 18.6 c 704
2002-11-13 05:18:34 C 01 26 47.38 +16 18 17.6 19.0 c 704
2004-01-28 09:00:11 C 09 05 28.76 +16 21 21.5 d 291
2004-01-28 09:05:59 C 09 05 28.44 +16 21 22.3 d 291
2004-01-28 09:12:10 C 09 05 28.12 +16 21 24.3 d 291
2005-05-18 18:49:57 C 23 39 04.92 -03 29 25.8 r E12
2005-05-18 18:59:13 C 23 39 06.68 -03 29 14.5 r E12
2005-05-18 19:08:31 C 23 39 08.55 -03 28 59.3 r E12
2005-05-18 19:17:49 C 23 39 10.40 -03 28 46.5 r E12
2005-11-25 06:58:46 C 05 11 21.76 +26 45 36.3 c 691
2005-11-25 07:23:45 C 05 11 19.82 +26 45 33.4 c 691
2005-11-25 07:48:35 C 05 11 17.85 +26 45 30.1 c 691
2005-11-29 04:48:15 C 05 04 09.94 +26 33 26.9 c 691
2005-11-29 05:13:03 C 05 04 07.97 +26 33 23.8 c 691
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)