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
2019-10-28 07:14:26 s 1 -100183.99 0 +359697.36 7390.0 C57
2019-10-28 08:14:26 S 01 48 59.458 +20 25 42.67 V C57
2019-10-28 08:14:26 s 1 -101973.83 1 +358353.05 6830.0 C57
2019-10-28 08:44:26 S 01 48 58.049 +20 25 23.56 V C57
2019-10-28 08:44:26 s 1 -102864.77 2 +357667.53 9070.0 C57
2019-10-28 09:14:26 S 01 48 56.753 +20 25 04.98 V C57
2019-10-28 09:14:26 s 1 -103753.01 9 +356973.09 6200.0 C57
2019-10-28 09:44:26 S 01 48 55.529 +20 24 48.28 V C57
2019-10-28 09:44:26 s 1 -104638.54 4 +356269.71 8140.0 C57
2019-10-28 11:14:26 S 01 48 51.768 +20 23 54.67 V C57
2019-10-28 11:14:26 s 1 -107278.47 3 +354105.85 1910.0 C57
2019-10-28 11:44:26 S 01 48 50.602 +20 23 35.92 V C57
2019-10-28 11:44:26 s 1 -108152.79 9 +353366.62 2190.0 C57
2019-10-28 12:14:26 S 01 48 49.438 +20 23 20.47 V C57
2019-10-28 12:14:26 s 1 -109024.24 7 +352618.38 6830.0 C57
2019-10-28 12:44:26 S 01 48 48.127 +20 22 59.30 V C57
2019-10-28 12:44:26 s 1 -109892.78 6 +351861.14 5730.0 C57
2019-10-28 13:14:26 S 01 48 46.848 +20 22 42.56 V C57
2019-10-28 13:14:26 s 1 -110757.27 2 +351096.09 7200.0 C57
2019-10-28 13:44:26 S 01 48 45.374 +20 22 21.25 V C57
2019-10-28 13:44:26 s 1 -111619.89 1 +350320.80 4340.0 C57
2019-10-28 14:14:26 S 01 48 44.474 +20 22 10.70 V C57
2019-10-28 14:14:26 s 1 -112479.50 5 +349536.46 5460.0 C57
2019-10-28 15:14:26 S 01 48 41.794 +20 21 32.36 V C57
2019-10-28 15:14:26 s 1 -114189.58 3 +347940.58 9310.0 C57
2019-10-28 16:14:26 S 01 48 39.545 +20 20 57.98 V C57
2019-10-28 16:14:26 s 1 -115887.24 0 +346308.33 7970.0 C57
2019-10-28 16:44:26 S 01 48 38.227 +20 20 40.09 V C57
2019-10-28 16:44:26 s 1 -116731.32 7 +345478.53 7610.0 C57
2019-10-28 17:14:26 S 01 48 37.138 +20 20 19.54 V C57
2019-10-28 17:14:26 s 1 -117572.20 7 +344639.60 660.0 C57
2019-10-28 17:44:26 S 01 48 35.954 +20 20 04.27 V C57
2019-10-28 17:44:26 s 1 -118409.84 6 +343791.51 7020.0 C57
2019-10-28 23:44:26 S 01 48 21.578 +20 16 29.06 V C57
2019-10-28 23:44:26 s 1 -128195.57 8 +332894.58 4210.0 C57
2019-10-29 00:14:26 S 01 48 20.734 +20 16 17.65 V C57
2019-10-29 00:14:26 s 1 -128987.76 3 +331925.99 4140.0 C57
2019-10-29 01:44:26 S 01 48 17.203 +20 15 21.20 V C57
2019-10-29 01:44:26 s 1 -131341.56 5 +328963.73 4380.0 C57
2019-10-29 02:14:26 S 01 48 16.123 +20 15 04.21 V C57
2019-10-29 02:14:26 s 1 -132118.44 6 +327957.42 880.0 C57
2019-10-29 02:44:26 S 01 48 14.962 +20 14 46.68 V C57
2019-10-29 02:44:26 s 1 -132891.39 7 +326941.63 8740.0 C57
2019-10-29 03:14:26 S 01 48 13.862 +20 14 30.16 V C57
2019-10-29 03:14:26 s 1 -133660.37 8 +325916.35 7820.0 C57
2019-10-29 03:44:26 S 01 48 12.811 +20 14 09.38 V C57
2019-10-29 03:44:26 s 1 -134425.34 4 +324881.54 8010.0 C57
2019-10-29 04:14:26 S 01 48 11.558 +20 13 54.23 V C57
2019-10-29 04:14:26 s 1 -135186.25 2 +323837.20 9180.0 C57
2019-10-29 04:44:26 S 01 48 10.550 +20 13 34.54 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)