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
2019-11-17 03:47:51 C 01 39 31.16 +17 00 00.0 o 691
2019-11-17 04:06:23 C 01 39 31.04 +16 59 55.0 o 691
2019-11-17 04:22:59 C 01 39 30.93 +16 59 50.6 o 691
2019-11-19 05:03:36 C 01 39 26.38 +16 46 56.8 V G96
2019-11-19 05:11:36 C 01 39 26.36 +16 46 54.8 V G96
2019-11-19 05:19:37 C 01 39 26.33 +16 46 52.7 V G96
2019-11-19 05:27:37 C 01 39 26.30 +16 46 50.8 V G96
2019-11-20 10:19:55 C 01 39 28.05 +16 39 52.9 V T05
2019-11-20 10:24:45 C 01 39 27.98 +16 39 51.9 V T05
2019-11-20 10:32:24 C 01 39 28.01 +16 39 49.2 V T05
2019-11-20 10:46:58 C 01 39 28.05 +16 39 46.2 V T05
2019-11-28 07:49:05 C 01 41 04.38 +16 05 03.9 V T05
2019-11-28 07:57:59 C 01 41 04.48 +16 05 03.0 V T05
2019-11-28 08:02:06 C 01 41 04.53 +16 05 01.8 V T05
2019-11-28 08:25:08 C 01 41 04.74 +16 04 59.0 V T05
2019-12-20 02:32:53 C 01 55 13.37 +15 50 54.2 V G96
2019-12-20 02:41:09 C 01 55 13.67 +15 50 54.9 V G96
2019-12-20 03:06:10 C 01 55 14.55 +15 50 56.0 V G96
2019-12-20 03:20:51 C 01 55 15.06 +15 50 57.4 V G96
2019-12-31 07:42:29 C 02 06 28.310 +16 16 17.01 U F51
2019-12-31 08:01:03 C 02 06 29.126 +16 16 19.26 U F51
2019-12-31 08:19:29 C 02 06 29.939 +16 16 21.40 U F51
2019-12-31 08:37:59 C 02 06 30.744 +16 16 23.59 U F51
2022-08-14 13:49:05 C 04 43 52.610 +24 41 51.53 U F51
2022-08-14 14:29:19 C 04 43 56.433 +24 42 00.47 U F51
2022-08-14 14:50:01 C 04 43 58.404 +24 42 05.34 U F51
2022-11-27 07:22:32 C 05 13 10.538 +26 41 21.95 V G96
2022-11-27 07:29:56 C 05 13 09.955 +26 41 21.16 V G96
2022-11-27 07:37:22 C 05 13 09.354 +26 41 20.29 V G96
2022-12-15 10:21:23 C 04 41 55.746 +25 33 04.17 U F51
2022-12-15 10:35:45 C 04 41 54.806 +25 33 01.71 U F51
2022-12-15 10:52:50 C 04 41 53.700 +25 32 58.44 U F51
2022-12-15 11:06:13 C 04 41 52.830 +25 32 56.00 U F51
2022-12-17 15:41:16 C 04 38 40.55 +25 23 14.9 V D29
2022-12-17 16:01:38 C 04 38 39.35 +25 23 11.7 V D29
2022-12-17 16:22:00 C 04 38 38.12 +25 23 07.9 V D29
2022-12-24 05:20:40 C 04 30 11.326 +24 54 36.07 V G96
2022-12-24 05:28:45 C 04 30 10.825 +24 54 33.77 V G96
2022-12-24 05:36:49 C 04 30 10.480 +24 54 33.44 V G96
2022-12-24 05:44:55 C 04 30 10.069 +24 54 31.68 V G96
2025-11-28 10:31:09 C 06 51 05.454 +25 16 43.43 V G96
2025-11-28 10:39:36 C 06 51 05.033 +25 16 43.86 V G96
2025-11-28 10:48:04 C 06 51 04.619 +25 16 44.08 V G96
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)