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
2019-10-15 02:14:26 s 1 -101070.45 0 +362515.71 710.0 C57
2019-10-15 02:44:26 S 02 07 50.366 +23 54 09.36 V C57
2019-10-15 02:44:26 s 1 -102010.95 6 +361930.42 2490.0 C57
2019-10-15 03:14:26 S 02 07 48.091 +23 53 46.90 V C57
2019-10-15 03:14:26 s 1 -102948.98 1 +361336.26 9980.0 C57
2019-10-15 03:44:26 S 02 07 45.866 +23 53 24.97 V C57
2019-10-15 03:44:26 s 1 -103884.49 6 +360733.20 3100.0 C57
2019-10-15 04:14:26 S 02 07 43.646 +23 53 01.43 V C57
2019-10-15 04:14:26 s 1 -104817.47 2 +360121.25 1760.0 C57
2019-10-15 05:44:26 S 02 07 36.850 +23 51 52.99 V C57
2019-10-15 05:44:26 s 1 -107600.87 1 +358231.92 200.0 C57
2019-10-15 06:14:26 S 02 07 34.716 +23 51 32.18 V C57
2019-10-15 06:14:26 s 1 -108523.39 5 +357584.30 220.0 C57
2019-10-15 06:44:26 S 02 07 32.635 +23 51 09.76 V C57
2019-10-15 06:44:26 s 1 -109443.23 2 +356927.74 5380.0 C57
2019-10-15 07:14:26 S 02 07 30.350 +23 50 47.04 V C57
2019-10-15 07:14:26 s 1 -110360.35 0 +356262.23 5580.0 C57
2019-10-15 07:44:26 S 02 07 28.193 +23 50 25.12 V C57
2019-10-15 07:44:26 s 1 -111274.72 0 +355587.78 760.0 C57
2019-10-15 08:14:26 S 02 07 25.958 +23 50 03.01 V C57
2019-10-15 08:14:26 s 1 -112186.31 0 +354904.36 810.0 C57
2019-10-15 08:44:26 S 02 07 23.849 +23 49 40.26 V C57
2019-10-15 08:44:26 s 1 -113095.08 9 +354211.97 5660.0 C57
2019-10-15 09:14:26 S 02 07 21.720 +23 49 17.90 V C57
2019-10-15 09:14:26 s 1 -114001.02 7 +353510.60 5230.0 C57
2019-10-15 09:44:26 S 02 07 19.459 +23 48 56.41 V C57
2019-10-15 09:44:26 s 1 -114904.09 1 +352800.24 9410.0 C57
2019-10-15 10:14:26 S 02 07 17.354 +23 48 33.80 V C57
2019-10-15 10:14:26 s 1 -115804.25 1 +352080.88 8130.0 C57
2019-10-15 10:44:26 S 02 07 15.163 +23 48 11.81 V C57
2019-10-15 10:44:26 s 1 -116701.47 3 +351352.52 1290.0 C57
2019-10-15 11:14:26 S 02 07 13.042 +23 47 47.65 V C57
2019-10-15 11:14:26 s 1 -117595.72 6 +350615.13 8820.0 C57
2019-10-15 11:44:26 S 02 07 10.826 +23 47 26.34 V C57
2019-10-15 11:44:26 s 1 -118486.97 8 +349868.72 620.0 C57
2019-10-15 12:14:26 S 02 07 08.729 +23 47 02.44 V C57
2019-10-15 12:14:26 s 1 -119375.19 5 +349113.27 6590.0 C57
2019-10-15 12:44:26 S 02 07 06.413 +23 46 40.08 V C57
2019-10-15 12:44:26 s 1 -120260.34 4 +348348.77 6650.0 C57
2019-10-15 18:44:26 S 02 06 41.026 +23 42 10.55 V C57
2019-10-15 18:44:26 s 1 -130630.46 2 +338464.81 2310.0 C57
2019-10-15 19:14:26 S 02 06 38.930 +23 41 49.02 V C57
2019-10-15 19:14:26 s 1 -131472.59 7 +337581.61 6930.0 C57
2019-10-15 19:44:26 S 02 06 37.042 +23 41 26.56 V C57
2019-10-15 19:44:26 s 1 -132311.17 1 +336689.20 4280.0 C57
2019-10-15 20:14:26 S 02 06 34.958 +23 41 04.38 V C57
2019-10-15 20:14:26 s 1 -133146.14 6 +335787.55 4270.0 C57
2019-10-15 20:44:26 S 02 06 32.873 +23 40 40.48 V C57
2019-10-15 20:44:26 s 1 -133977.48 4 +334876.65 6780.0 C57
2019-10-15 21:14:26 S 02 06 30.850 +23 40 17.44 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)