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
2019-10-29 04:44:26 s 1 -135943.06 0 +322783.29 1220.0 C57
2019-10-29 06:14:26 S 01 48 07.207 +20 12 43.31 V C57
2019-10-29 06:14:26 s 1 -138188.43 0 +319563.95 1240.0 C57
2019-10-29 08:44:26 S 01 48 01.848 +20 11 16.26 V C57
2019-10-29 08:44:26 s 1 -141844.45 0 +314004.99 3150.0 C57
2019-10-29 09:14:26 S 01 48 00.686 +20 10 56.60 V C57
2019-10-29 09:14:26 s 1 -142562.28 9 +312863.97 7120.0 C57
2019-10-29 09:44:26 S 01 47 59.602 +20 10 41.70 V C57
2019-10-29 09:44:26 s 1 -143275.55 8 +311713.16 620.0 C57
2019-10-29 10:14:26 S 01 47 58.570 +20 10 23.05 V C57
2019-10-29 10:14:26 s 1 -143984.20 8 +310552.52 3510.0 C57
2019-10-29 10:44:26 S 01 47 57.586 +20 10 07.82 V C57
2019-10-29 10:44:26 s 1 -144688.18 9 +309382.02 5660.0 C57
2019-10-29 11:01:29 C 01 49 21.33 +20 07 52.4 V T08
2019-10-29 11:07:39 C 01 49 21.03 +20 07 49.2 V T08
2019-10-29 11:14:26 S 01 47 56.431 +20 09 50.83 V C57
2019-10-29 11:14:26 s 1 -145387.44 8 +308201.65 6920.0 C57
2019-10-29 11:18:48 C 01 49 20.48 +20 07 42.7 V T08
2019-10-29 11:33:20 C 01 49 19.77 +20 07 34.3 V T08
2019-10-29 11:44:26 S 01 47 55.351 +20 09 33.23 V C57
2019-10-29 11:44:26 s 1 -146081.93 3 +307011.38 7140.0 C57
2019-10-29 12:44:26 S 01 47 53.249 +20 08 53.27 V C57
2019-10-29 12:44:26 s 1 -147456.37 2 +304601.01 3860.0 C57
2019-10-29 13:14:26 S 01 47 52.190 +20 08 38.11 V C57
2019-10-29 13:14:26 s 1 -148136.21 8 +303380.86 70.0 C57
2019-10-29 13:44:26 S 01 47 51.130 +20 08 20.40 V C57
2019-10-29 13:44:26 s 1 -148811.07 5 +302150.70 4620.0 C57
2019-10-29 14:14:26 S 01 47 50.076 +20 08 03.98 V C57
2019-10-29 14:14:26 s 1 -149480.88 7 +300910.50 7380.0 C57
2019-10-29 14:44:26 S 01 47 49.049 +20 07 46.78 V C57
2019-10-29 14:44:26 s 1 -150145.59 9 +299660.23 8170.0 C57
2019-10-29 15:14:26 S 01 47 47.966 +20 07 30.90 V C57
2019-10-29 15:14:26 s 1 -150805.15 2 +298399.85 6840.0 C57
2019-10-29 15:44:26 S 01 47 47.129 +20 07 12.29 V C57
2019-10-29 15:44:26 s 1 -151459.48 9 +297129.35 3230.0 C57
2019-10-29 16:14:26 S 01 47 46.032 +20 06 53.64 V C57
2019-10-29 16:14:26 s 1 -152108.55 1 +295848.69 7160.0 C57
2019-10-29 16:44:26 S 01 47 45.086 +20 06 38.38 V C57
2019-10-29 16:44:26 s 1 -152752.27 8 +294557.84 8470.0 C57
2019-10-29 17:14:26 S 01 47 43.889 +20 06 19.33 V C57
2019-10-29 17:14:26 s 1 -153390.60 9 +293256.77 7000.0 C57
2019-10-29 17:44:26 S 01 47 43.118 +20 06 01.91 V C57
2019-10-29 17:44:26 s 1 -154023.48 3 +291945.45 2560.0 C57
2019-10-29 18:44:26 S 01 47 40.894 +20 05 25.30 V C57
2019-10-29 18:44:26 s 1 -155272.61 1 +289291.93 4090.0 C57
2019-10-29 19:14:26 S 01 47 40.063 +20 05 09.10 V C57
2019-10-29 19:14:26 s 1 -155888.73 7 +287949.66 9710.0 C57
2019-10-29 19:44:26 S 01 47 38.950 +20 04 53.44 V C57
2019-10-29 19:44:26 s 1 -156499.15 1 +286597.02 1640.0 C57
2019-10-29 20:14:26 S 01 47 38.179 +20 04 34.68 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)