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
2002-10-02 15:11:19 C 02 04 56.40 +26 45 53.0 355
2002-10-02 15:14:17 C 02 04 56.14 +26 45 50.1 355
2002-10-02 15:17:09 C 02 04 55.83 +26 45 47.0 355
2002-10-02 15:19:56 C 02 04 55.56 +26 45 44.6 355
2002-10-03 13:47:53 C 02 02 57.71 +26 23 10.6 c 379
2002-10-03 13:58:58 C 02 02 56.72 +26 23 00.9 c 379
2002-10-03 14:08:44 C 02 02 55.80 +26 22 51.1 c 379
2002-10-03 20:13:32 C 02 02 24.19 +26 16 32.2 c 084
2002-10-04 20:35:59 C 02 00 21.62 +25 52 44.3 c J93
2002-10-04 20:39:02 C 02 00 21.39 +25 52 40.8 c J93
2002-10-04 20:42:06 C 02 00 21.19 +25 52 37.5 c J93
2002-10-04 23:17:32 C 02 00 07.00 +25 50 13.0 d A20
2002-10-04 23:31:32 C 02 00 05.55 +25 50 00.8 d A20
2002-10-04 23:58:05 C 02 00 03.34 +25 49 35.5 d A20
2002-10-05 00:02:46 C 02 00 02.87 +25 49 32.3 d A20
2002-10-05 00:08:33 C 02 00 01.93 +25 49 28.1 d A20
2002-10-05 00:22:11 C 02 00 01.34 +25 49 12.8 d A20
2002-10-05 07:50:56 C 01 59 24.67 +25 42 16.0 16.9 c 704
2002-10-05 08:13:45 C 01 59 22.54 +25 41 54.1 17.3 c 704
2002-10-05 08:36:42 C 01 59 20.41 +25 41 32.1 17.2 c 704
2002-10-05 08:59:31 C 01 59 18.32 +25 41 10.1 17.1 c 704
2002-10-05 09:22:21 C 01 59 16.25 +25 40 47.8 17.4 c 704
2002-10-05 20:21:28 C 01 58 24.97 +25 30 02.4 c 084
2002-10-07 00:24:02 C 01 56 11.94 +25 03 50.5 c 084
2002-10-07 20:49:25 C 01 54 40.99 +24 45 08.4 c 084
2002-10-07 21:06:59 C 01 54 40.44 +24 44 58.7 c 587
2002-10-07 21:08:35 C 01 54 40.33 +24 44 57.1 c 587
2002-10-07 21:10:10 C 01 54 40.20 +24 44 56.1 c 587
2002-10-07 21:11:46 C 01 54 40.08 +24 44 54.4 c 587
2002-10-08 04:31:40 C 01 54 06.98 +24 38 23.0 c 785
2002-10-08 05:25:02 C 01 54 02.57 +24 37 35.5 c 785
2002-10-08 15:47:53 C 01 53 17.91 +24 28 58.2 c 322
2002-10-08 16:11:15 C 01 53 16.01 +24 28 37.6 c 322
2002-10-08 16:18:28 C 01 53 15.40 +24 28 31.2 c 322
2002-10-08 20:34:55 C 01 52 58.11 +24 23 50.7 c 127
2002-10-08 20:40:39 C 01 52 57.68 +24 23 45.9 c 127
2002-10-08 20:46:21 C 01 52 57.26 +24 23 41.1 c 127
2002-10-08 21:52:26 C 01 52 52.16 +24 22 45.5 c 240
2002-10-08 22:00:12 C 01 52 51.56 +24 22 39.1 c 240
2002-10-08 22:03:18 C 01 52 51.31 +24 22 36.4 c 240
2002-10-09 15:52:01 C 01 51 35.96 +24 07 42.5 c 322
2002-10-09 16:07:45 C 01 51 34.72 +24 07 29.0 c 322
2002-10-09 16:14:56 C 01 51 34.15 +24 07 23.0 c 322
2002-10-09 18:53:57 C 01 51 24.60 +24 04 11.0 c 151
2002-10-09 18:59:09 C 01 51 24.24 +24 04 06.7 c 151
2002-10-09 19:20:53 C 01 51 22.70 +24 03 48.5 c 151
2002-10-09 19:24:52 C 01 51 22.45 +24 03 45.1 c 151
2002-10-10 07:41:57 C 01 50 30.47 +23 53 21.8 16.4 c 704
2002-10-10 08:04:41 C 01 50 28.72 +23 53 02.2 16.8 c 704
2002-10-10 08:27:23 C 01 50 26.96 +23 52 42.4 17.0 c 704
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)