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
2019-10-09 09:52:58 C 02 21 14.259 +25 28 45.72 U F52
2019-10-09 09:54:43 C 02 21 12.62 +25 28 37.4 V 654
2019-10-09 09:56:40 C 02 21 13.87 +25 28 43.9 V T08
2019-10-09 10:00:29 C 02 21 12.05 +25 28 33.1 V 654
2019-10-09 10:08:04 C 02 21 12.71 +25 28 35.3 V T08
2019-10-09 10:10:32 C 02 21 12.528 +25 28 33.18 U F52
2019-10-09 10:13:52 C 02 21 12.13 +25 28 31.1 V T08
2019-10-09 10:24:32 C 02 21 11.12 +25 28 23.8 V T08
2019-10-09 10:43:10 C 02 21 09.28 +25 28 10.5 V T08
2019-10-09 10:51:51 C 02 21 07.06 +25 27 54.2 V 654
2019-10-09 10:57:38 C 02 21 06.50 +25 27 49.9 V 654
2019-10-11 00:38:45 C 02 17 50.43 +25 00 06.6 q 160
2019-10-11 00:41:39 C 02 17 50.17 +25 00 04.3 q 160
2019-10-11 00:44:31 C 02 17 49.89 +25 00 02.3 q 160
2019-10-11 23:52:36 C 02 15 53.20 +24 43 10.1 q 160
2019-10-11 23:55:31 C 02 15 52.93 +24 43 08.1 q 160
2019-10-11 23:58:26 C 02 15 52.66 +24 43 05.9 q 160
2019-10-13 19:14:26 S 02 10 20.141 +24 17 42.79 V C57
2019-10-13 19:14:26 s 1 -39022.072 0 +381607.80 8920.0 C57
2019-10-13 19:44:26 S 02 10 17.614 +24 17 21.80 V C57
2019-10-13 19:44:26 s 1 -40065.458 0 +381567.93 3780.0 C57
2019-10-13 20:14:26 S 02 10 15.103 +24 16 57.83 V C57
2019-10-13 20:14:26 s 1 -41107.927 0 +381519.23 8510.0 C57
2019-10-13 20:44:26 S 02 10 12.566 +24 16 37.31 V C57
2019-10-13 20:44:26 s 1 -42149.455 0 +381461.70 3190.0 C57
2019-10-13 21:14:26 S 02 10 10.082 +24 16 11.24 V C57
2019-10-13 21:14:26 s 1 -43190.019 0 +381395.35 2130.0 C57
2019-10-13 22:14:26 S 02 10 04.862 +24 15 28.33 V C57
2019-10-13 22:14:26 s 1 -45268.160 0 +381236.20 2460.0 C57
2019-10-13 22:44:26 S 02 10 02.424 +24 15 05.40 V C57
2019-10-13 22:44:26 s 1 -46305.690 0 +381143.41 7330.0 C57
2019-10-13 23:14:26 S 02 09 59.995 +24 14 43.37 V C57
2019-10-13 23:14:26 s 1 -47342.162 0 +381041.82 1930.0 C57
2019-10-13 23:44:26 S 02 09 57.492 +24 14 21.08 V C57
2019-10-13 23:44:26 s 1 -48377.552 0 +380931.42 6170.0 C57
2019-10-14 00:14:26 S 02 09 55.078 +24 13 59.05 V C57
2019-10-14 00:14:26 s 1 -49411.837 0 +380812.22 0.0 C57
2019-10-14 01:14:26 S 02 09 50.143 +24 13 13.19 V C57
2019-10-14 01:14:26 s 1 -51476.996 0 +380547.46 6130.0 C57
2019-10-14 02:14:26 S 02 09 45.238 +24 12 29.88 V C57
2019-10-14 02:14:26 s 1 -53537.451 0 +380247.54 9770.0 C57
2019-10-14 04:44:26 S 02 09 32.916 +24 10 37.92 V C57
2019-10-14 04:44:26 s 1 -58666.757 0 +379344.08 4410.0 C57
2019-10-14 05:14:26 S 02 09 30.610 +24 10 15.42 V C57
2019-10-14 05:14:26 s 1 -59688.686 0 +379137.07 310.0 C57
2019-10-14 05:44:26 S 02 09 28.087 +24 09 52.56 V C57
2019-10-14 05:44:26 s 1 -60709.248 0 +378921.28 5050.0 C57
2019-10-14 06:14:26 S 02 09 25.654 +24 09 30.20 V C57
2019-10-14 06:14:26 s 1 -61728.420 0 +378696.73 8550.0 C57
2019-10-14 06:44:26 S 02 09 23.251 +24 09 07.56 V C57
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)