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
2002-09-02 23:32:57 C 05 25 04.37 +47 09 02.9 c 127
2002-09-02 23:36:40 C 05 25 00.78 +47 08 57.6 c 127
2002-09-02 23:42:12 C 05 24 55.45 +47 08 49.8 c 127
2002-09-02 23:47:24 C 05 24 50.38 +47 08 42.0 c 127
2002-09-02 23:54:55 C 05 24 43.14 +47 08 30.6 c 127
2002-09-06 22:04:18 C 04 13 59.50 +43 26 58.9 d 557
2002-09-06 22:15:02 C 04 13 53.42 +43 26 33.7 d 557
2002-09-06 22:28:18 C 04 13 45.88 +43 26 02.6 d 557
2002-09-06 22:36:31 C 04 13 41.20 +43 25 43.3 d 557
2002-09-06 23:44:38 C 04 13 02.64 +43 22 57.4 c 196
2002-09-06 23:51:43 C 04 12 58.20 +43 22 46.0 d 557
2002-09-07 00:07:30 C 04 12 49.62 +43 22 03.0 c 196
2002-09-07 00:08:01 C 04 12 48.80 +43 22 07.0 d 557
2002-09-07 00:19:30 C 04 12 42.17 +43 21 39.7 d 557
2002-09-07 00:23:49 C 04 12 40.25 +43 21 24.2 c 196
2002-09-07 00:39:54 C 04 12 30.41 +43 20 51.0 d 557
2002-09-07 00:47:14 C 04 12 26.83 +43 20 28.9 c 196
2002-09-07 00:50:58 C 04 12 24.04 +43 20 24.5 d 557
2002-09-07 01:02:50 C 04 12 17.17 +43 19 55.9 d 557
2002-09-07 01:10:36 C 04 12 12.65 +43 19 37.2 d 557
2002-09-07 01:25:31 C 04 12 04.00 +43 19 01.0 d 557
2002-09-07 01:41:33 C 04 11 54.69 +43 18 21.7 d 557
2002-09-07 02:10:04 C 04 11 38.14 +43 17 11.8 d 557
2002-09-07 02:48:08 C 04 11 18.07 +43 15 51.9 d 176
2002-09-07 02:52:07 C 04 11 15.73 +43 15 42.1 d 176
2002-09-07 02:56:04 C 04 11 13.40 +43 15 32.5 d 176
2002-09-07 03:00:01 C 04 11 11.09 +43 15 22.8 d 176
2002-09-07 03:04:01 C 04 11 08.74 +43 15 13.0 d 176
2002-09-07 04:40:09 C 04 10 19.90 +43 10 12.0 c 920
2002-09-07 04:45:09 C 04 10 17.13 +43 09 59.8 c 920
2002-09-07 04:55:10 C 04 10 11.69 +43 09 37.7 c 920
2002-09-07 05:00:10 C 04 10 08.99 +43 09 26.0 c 920
2002-09-07 21:58:39 C 04 01 17.60 +42 25 37.2 d 557
2002-09-07 22:34:11 C 04 00 59.82 +42 24 14.3 d 557
2002-09-07 22:50:18 C 04 00 51.71 +42 23 20.9 c J93
2002-09-07 22:52:20 C 04 00 50.71 +42 23 15.9 c J93
2002-09-07 22:54:23 C 04 00 49.68 +42 23 10.7 c J93
2002-09-07 23:03:04 C 04 00 45.32 +42 23 06.7 d 557
2002-09-07 23:33:16 C 04 00 30.11 +42 21 56.2 d 557
2002-09-07 23:58:11 C 04 00 17.52 +42 20 57.7 d 557
2002-09-08 00:29:32 C 04 00 01.59 +42 19 43.5 d 557
2002-09-08 01:03:43 C 03 59 44.18 +42 18 22.1 d 557
2002-09-08 01:27:32 C 03 59 32.01 +42 17 24.7 d 557
2002-09-08 02:03:23 C 03 59 13.66 +42 15 57.8 d 557
2002-09-08 02:32:53 C 03 58 58.54 +42 14 45.5 d 557
2002-09-08 03:06:26 C 03 58 41.38 +42 13 22.5 d 557
2002-09-08 21:56:18 C 03 50 06.78 +41 25 24.9 c 151
2002-09-08 21:57:38 C 03 50 06.18 +41 25 21.6 c 151
2002-09-08 21:59:55 C 03 50 05.23 +41 25 16.3 c 151
2002-09-08 22:01:29 C 03 50 04.48 +41 25 13.4 c 151
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)