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
2019-10-29 20:14:26 s 1 -157103.78 7 +285233.96 9710.0 C57
2019-10-29 20:44:26 S 01 47 37.066 +20 04 16.57 V C57
2019-10-29 20:44:26 s 1 -157702.57 7 +283860.46 3730.0 C57
2019-10-29 21:14:25 S 01 47 36.065 +20 04 01.99 V C57
2019-10-29 21:14:25 s 1 -158295.45 4 +282476.48 3500.0 C57
2019-10-29 21:44:26 S 01 47 35.107 +20 03 43.24 V C57
2019-10-29 21:44:26 s 1 -158882.34 8 +281081.98 8830.0 C57
2019-10-29 22:14:26 S 01 47 34.258 +20 03 26.68 V C57
2019-10-29 22:14:26 s 1 -159463.19 0 +279676.93 9530.0 C57
2019-10-29 22:44:25 S 01 47 33.269 +20 03 08.68 V C57
2019-10-29 22:44:25 s 1 -160037.90 7 +278261.30 5390.0 C57
2019-10-29 23:14:26 S 01 47 32.232 +20 02 49.60 V C57
2019-10-29 23:14:26 s 1 -160606.42 7 +276835.05 6210.0 C57
2019-10-29 23:44:26 S 01 47 31.414 +20 02 33.32 V C57
2019-10-29 23:44:26 s 1 -161168.67 6 +275398.14 1780.0 C57
2019-10-30 00:14:25 S 01 47 30.506 +20 02 16.66 V C57
2019-10-30 00:14:25 s 1 -161724.58 0 +273950.54 1900.0 C57
2019-10-30 01:14:26 S 01 47 28.423 +20 01 43.64 V C57
2019-10-30 01:14:26 s 1 -162817.04 5 +271023.11 4900.0 C57
2019-10-30 01:44:25 S 01 47 27.461 +20 01 24.71 V C57
2019-10-30 01:44:25 s 1 -163353.45 1 +269543.21 7350.0 C57
2019-10-30 02:14:26 S 01 47 26.479 +20 01 07.50 V C57
2019-10-30 02:14:26 s 1 -163883.20 0 +268052.46 3460.0 C57
2019-10-30 02:44:26 S 01 47 25.493 +20 00 47.95 V C57
2019-10-30 02:44:26 s 1 -164406.21 0 +266550.83 3020.0 C57
2019-10-30 03:14:25 S 01 47 24.847 +20 00 35.17 V C57
2019-10-30 03:14:25 s 1 -164922.39 8 +265038.27 5790.0 C57
2019-10-30 03:27:25 C 01 48 41.57 +19 58 38.5 U I41
2019-10-30 03:44:26 S 01 47 23.791 +20 00 15.12 V C57
2019-10-30 03:44:26 s 1 -165431.68 2 +263514.75 1530.0 C57
2019-10-30 04:08:04 C 01 48 39.75 +19 58 17.0 U I41
2019-10-30 04:14:26 S 01 47 22.855 +19 59 57.48 V C57
2019-10-30 04:14:26 s 1 -165933.97 6 +261980.23 0.0 C57
2019-10-30 04:44:25 S 01 47 21.914 +19 59 41.39 V C57
2019-10-30 04:44:25 s 1 -166429.19 2 +260434.67 960.0 C57
2019-10-30 05:14:26 S 01 47 21.070 +19 59 26.20 V C57
2019-10-30 05:14:26 s 1 -166917.24 2 +258878.02 4170.0 C57
2019-10-30 05:44:26 S 01 47 20.100 +19 59 06.76 V C57
2019-10-30 05:44:26 s 1 -167398.03 7 +257310.24 9360.0 C57
2019-10-30 06:07:24 C 01 48 34.28 +19 57 13.2 U I41
2019-10-30 07:44:25 S 01 47 16.529 +19 58 00.77 V C57
2019-10-30 07:44:25 s 1 -169246.80 9 +250927.02 4850.0 C57
2019-10-30 08:14:26 S 01 47 15.737 +19 57 43.88 V C57
2019-10-30 08:14:26 s 1 -169689.92 3 +249302.96 6050.0 C57
2019-10-30 08:16:09 C 01 48 28.31 +19 56 02.7 U I41
2019-10-30 08:44:26 S 01 47 14.870 +19 57 25.96 V C57
2019-10-30 08:44:26 s 1 -170125.20 6 +247667.52 7640.0 C57
2019-10-30 09:14:25 S 01 47 13.853 +19 57 07.70 V C57
2019-10-30 09:14:25 s 1 -170552.55 9 +246020.64 9320.0 C57
2019-10-30 09:44:26 S 01 47 13.195 +19 56 48.26 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)