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
2019-10-25 03:14:26 s 1 +51675.426 0 +359411.22 6980.0 C57
2019-10-25 03:44:26 S 01 52 58.054 +21 12 05.44 V C57
2019-10-25 03:44:26 s 1 +50667.368 0 +360092.83 2060.0 C57
2019-10-25 04:14:26 S 01 52 56.196 +21 11 45.92 V C57
2019-10-25 04:14:26 s 1 +49658.097 0 +360764.78 360.0 C57
2019-10-25 04:44:26 S 01 52 54.365 +21 11 28.72 V C57
2019-10-25 04:44:26 s 1 +48647.645 0 +361427.10 1990.0 C57
2019-10-25 05:14:26 S 01 52 52.402 +21 11 09.49 V C57
2019-10-25 05:14:26 s 1 +47636.045 0 +362079.80 7050.0 C57
2019-10-25 05:44:26 S 01 52 50.777 +21 10 52.39 V C57
2019-10-25 05:44:26 s 1 +46623.330 0 +362722.90 5640.0 C57
2019-10-25 06:08:47 C 01 54 11.16 +21 07 02.3 V 703
2019-10-25 06:16:15 C 01 54 10.67 +21 06 57.6 V 703
2019-10-25 06:23:44 C 01 54 10.23 +21 06 53.2 V 703
2019-10-25 06:31:13 C 01 54 09.77 +21 06 48.7 V 703
2019-10-25 07:14:26 S 01 52 45.017 +21 09 55.19 V C57
2019-10-25 07:14:26 s 1 +43578.806 0 +364594.87 3560.0 C57
2019-10-25 07:44:26 S 01 52 43.178 +21 09 36.54 V C57
2019-10-25 07:44:26 s 1 +42561.945 0 +365199.81 7250.0 C57
2019-10-25 08:14:26 S 01 52 41.477 +21 09 17.96 V C57
2019-10-25 08:14:26 s 1 +41544.124 0 +365795.27 4950.0 C57
2019-10-25 08:44:26 S 01 52 39.473 +21 09 00.00 V C57
2019-10-25 08:44:26 s 1 +40525.376 0 +366381.25 6770.0 C57
2019-10-25 09:14:26 S 01 52 37.752 +21 08 43.22 V C57
2019-10-25 09:14:26 s 1 +39505.729 0 +366957.79 2790.0 C57
2019-10-25 09:44:26 S 01 52 36.002 +21 08 23.64 V C57
2019-10-25 09:44:26 s 1 +38485.216 0 +367524.89 3110.0 C57
2019-10-25 10:14:26 S 01 52 34.270 +21 08 05.28 V C57
2019-10-25 10:14:26 s 1 +37463.865 0 +368082.59 7820.0 C57
2019-10-25 10:44:26 S 01 52 32.501 +21 07 46.52 V C57
2019-10-25 10:44:26 s 1 +36441.706 0 +368630.89 7020.0 C57
2019-10-25 11:14:26 S 01 52 30.619 +21 07 27.70 V C57
2019-10-25 11:14:26 s 1 +35418.768 0 +369169.82 790.0 C57
2019-10-25 11:44:26 S 01 52 29.009 +21 07 10.38 V C57
2019-10-25 11:44:26 s 1 +34395.082 0 +369699.40 9240.0 C57
2019-10-25 12:14:26 S 01 52 27.022 +21 06 51.05 V C57
2019-10-25 12:14:26 s 1 +33370.675 0 +370219.64 2430.0 C57
2019-10-25 12:44:26 S 01 52 25.154 +21 06 30.13 V C57
2019-10-25 12:44:26 s 1 +32345.577 0 +370730.56 480.0 C57
2019-10-25 13:44:26 S 01 52 21.631 +21 05 56.15 V C57
2019-10-25 13:44:26 s 1 +30293.420 0 +371724.52 1460.0 C57
2019-10-25 14:14:26 S 01 52 19.918 +21 05 37.36 V C57
2019-10-25 14:14:26 s 1 +29266.418 0 +372207.59 4570.0 C57
2019-10-25 14:44:26 S 01 52 18.137 +21 05 18.46 V C57
2019-10-25 14:44:26 s 1 +28238.838 0 +372681.41 2880.0 C57
2019-10-25 15:14:26 S 01 52 16.332 +21 05 01.07 V C57
2019-10-25 15:14:26 s 1 +27210.708 0 +373146.00 6470.0 C57
2019-10-25 15:44:26 S 01 52 14.686 +21 04 40.62 V C57
2019-10-25 15:44:26 s 1 +26182.055 0 +373601.37 5430.0 C57
2019-10-25 16:14:26 S 01 52 12.751 +21 04 24.10 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)