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
2019-10-23 19:14:26 s 1 +111856.34 6 +294404.37 8820.0 C57
2019-10-23 19:44:26 S 01 55 04.992 +21 31 49.76 V C57
2019-10-23 19:44:26 s 1 +111014.10 5 +295767.26 9350.0 C57
2019-10-23 20:14:26 S 01 55 02.911 +21 31 32.48 V C57
2019-10-23 20:14:26 s 1 +110167.52 3 +297118.27 3500.0 C57
2019-10-23 20:44:26 S 01 55 00.790 +21 31 13.91 V C57
2019-10-23 20:44:26 s 1 +109316.67 4 +298457.44 1470.0 C57
2019-10-23 21:14:26 S 01 54 58.661 +21 30 54.25 V C57
2019-10-23 21:14:26 s 1 +108461.63 0 +299784.82 3500.0 C57
2019-10-23 21:44:26 S 01 54 56.575 +21 30 37.98 V C57
2019-10-23 21:44:26 s 1 +107602.46 2 +301100.46 9800.0 C57
2019-10-23 22:14:26 S 01 54 54.619 +21 30 19.44 V C57
2019-10-23 22:14:26 s 1 +106739.24 0 +302404.41 590.0 C57
2019-10-23 23:14:26 S 01 54 50.261 +21 29 41.57 V C57
2019-10-23 23:14:26 s 1 +105000.90 7 +304977.42 6440.0 C57
2019-10-23 23:44:26 S 01 54 48.190 +21 29 20.62 V C57
2019-10-23 23:44:26 s 1 +104125.93 1 +306246.58 1920.0 C57
2019-10-24 00:14:26 S 01 54 46.092 +21 29 03.77 V C57
2019-10-24 00:14:26 s 1 +103247.16 9 +307504.23 2700.0 C57
2019-10-24 00:44:26 S 01 54 44.086 +21 28 45.70 V C57
2019-10-24 00:44:26 s 1 +102364.68 6 +308750.43 8990.0 C57
2019-10-24 01:14:26 S 01 54 41.834 +21 28 26.51 V C57
2019-10-24 01:14:26 s 1 +101478.54 6 +309985.20 970.0 C57
2019-10-24 01:44:26 S 01 54 39.821 +21 28 09.62 V C57
2019-10-24 01:44:26 s 1 +100588.81 1 +311208.61 8850.0 C57
2019-10-24 02:14:26 S 01 54 37.781 +21 27 49.39 V C57
2019-10-24 02:14:26 s 1 +99695.543 0 +312420.69 2800.0 C57
2019-10-24 02:44:26 S 01 54 35.686 +21 27 31.39 V C57
2019-10-24 02:44:26 s 1 +98798.803 0 +313621.49 3010.0 C57
2019-10-24 03:14:26 S 01 54 33.756 +21 27 13.93 V C57
2019-10-24 03:14:26 s 1 +97898.652 0 +314811.05 9680.0 C57
2019-10-24 03:44:26 S 01 54 31.507 +21 26 53.59 V C57
2019-10-24 03:44:26 s 1 +96995.147 0 +315989.41 2970.0 C57
2019-10-24 04:14:26 S 01 54 29.654 +21 26 35.63 V C57
2019-10-24 04:14:26 s 1 +96088.348 0 +317156.62 3070.0 C57
2019-10-24 04:44:26 S 01 54 27.506 +21 26 16.12 V C57
2019-10-24 04:44:26 s 1 +95178.312 0 +318312.70 160.0 C57
2019-10-24 05:27:29 C 01 55 31.35 +21 22 21.0 V G96
2019-10-24 05:35:04 C 01 55 30.89 +21 22 16.4 V G96
2019-10-24 05:42:38 C 01 55 30.42 +21 22 11.6 V G96
2019-10-24 05:44:26 S 01 54 23.479 +21 25 40.66 V C57
2019-10-24 05:44:26 s 1 +93348.753 0 +320591.70 5980.0 C57
2019-10-24 05:50:13 C 01 55 29.96 +21 22 07.0 V G96
2019-10-24 06:14:26 S 01 54 21.425 +21 25 20.46 V C57
2019-10-24 06:14:26 s 1 +92429.341 0 +321714.68 5050.0 C57
2019-10-24 06:44:26 S 01 54 19.370 +21 25 02.32 V C57
2019-10-24 06:44:26 s 1 +91506.914 0 +322826.71 1790.0 C57
2019-10-24 07:14:26 S 01 54 17.551 +21 24 45.11 V C57
2019-10-24 07:14:26 s 1 +90581.525 0 +323927.82 6360.0 C57
2019-10-24 07:44:26 S 01 54 15.262 +21 24 25.96 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)