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
2019-10-27 17:44:26 s 1 -75092.997 0 +374394.90 4250.0 C57
2019-10-27 18:14:26 S 01 49 36.348 +20 34 02.89 V C57
2019-10-27 18:14:26 s 1 -76049.844 0 +373964.17 8910.0 C57
2019-10-27 18:44:26 S 01 49 34.992 +20 33 45.25 V C57
2019-10-27 18:44:26 s 1 -77004.787 0 +373524.76 780.0 C57
2019-10-27 19:14:26 S 01 49 33.598 +20 33 25.45 V C57
2019-10-27 19:14:26 s 1 -77957.802 0 +373076.66 9790.0 C57
2019-10-27 19:44:26 S 01 49 32.381 +20 33 08.06 V C57
2019-10-27 19:44:26 s 1 -78908.862 0 +372619.86 5860.0 C57
2019-10-27 20:14:26 S 01 49 30.859 +20 32 49.38 V C57
2019-10-27 20:14:26 s 1 -79857.944 0 +372154.35 8910.0 C57
2019-10-27 20:44:26 S 01 49 29.578 +20 32 31.38 V C57
2019-10-27 20:44:26 s 1 -80805.021 0 +371680.14 8880.0 C57
2019-10-27 22:14:26 S 01 49 25.474 +20 31 39.97 V C57
2019-10-27 22:14:26 s 1 -83633.967 0 +370205.18 9490.0 C57
2019-10-27 22:44:26 S 01 49 24.132 +20 31 20.10 V C57
2019-10-27 22:44:26 s 1 -84572.769 0 +369696.06 6340.0 C57
2019-10-27 23:14:26 S 01 49 22.853 +20 31 02.64 V C57
2019-10-27 23:14:26 s 1 -85509.436 0 +369178.21 9720.0 C57
2019-10-27 23:44:26 S 01 49 21.533 +20 30 44.03 V C57
2019-10-27 23:44:26 s 1 -86443.944 0 +368651.61 9550.0 C57
2019-10-28 00:14:26 S 01 49 20.225 +20 30 25.92 V C57
2019-10-28 00:14:26 s 1 -87376.266 0 +368116.25 5760.0 C57
2019-10-28 00:44:26 S 01 49 18.816 +20 30 10.30 V C57
2019-10-28 00:44:26 s 1 -88306.374 0 +367572.13 8260.0 C57
2019-10-28 01:14:26 S 01 49 17.585 +20 29 51.68 V C57
2019-10-28 01:14:26 s 1 -89234.242 0 +367019.24 6980.0 C57
2019-10-28 01:44:26 S 01 49 16.118 +20 29 32.60 V C57
2019-10-28 01:44:26 s 1 -90159.844 0 +366457.57 1840.0 C57
2019-10-28 02:14:26 S 01 49 14.858 +20 29 15.22 V C57
2019-10-28 02:14:26 s 1 -91083.152 0 +365887.11 2760.0 C57
2019-10-28 02:44:26 S 01 49 13.618 +20 28 59.12 V C57
2019-10-28 02:44:26 s 1 -92004.139 0 +365307.86 9660.0 C57
2019-10-28 03:14:26 S 01 49 12.242 +20 28 40.44 V C57
2019-10-28 03:14:26 s 1 -92922.778 0 +364719.81 2460.0 C57
2019-10-28 04:44:26 S 01 49 08.227 +20 27 45.83 V C57
2019-10-28 04:44:26 s 1 -95664.326 0 +362902.74 5430.0 C57
2019-10-28 05:14:26 S 01 49 06.948 +20 27 26.82 V C57
2019-10-28 05:14:26 s 1 -96573.293 0 +362279.38 1010.0 C57
2019-10-28 05:44:26 S 01 49 05.676 +20 27 11.63 V C57
2019-10-28 05:44:26 s 1 -97479.772 0 +361647.17 2080.0 C57
2019-10-28 06:14:26 S 01 49 04.423 +20 26 53.23 V C57
2019-10-28 06:14:26 s 1 -98383.734 0 +361006.11 8560.0 C57
2019-10-28 06:33:32 C 01 50 37.30 +20 23 56.5 V 703
2019-10-28 06:41:04 C 01 50 36.91 +20 23 52.2 V 703
2019-10-28 06:44:26 S 01 49 03.156 +20 26 33.90 V C57
2019-10-28 06:44:26 s 1 -99285.149 0 +360356.17 350.0 C57
2019-10-28 06:48:37 C 01 50 36.53 +20 23 47.8 V 703
2019-10-28 06:56:10 C 01 50 36.13 +20 23 43.3 V 703
2019-10-28 07:14:26 S 01 49 01.961 +20 26 17.74 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)