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 04:14:26 s 1 -48627.167 0 +382753.92 8230.0 C57
2019-10-27 04:44:26 S 01 50 14.911 +20 42 08.28 V C57
2019-10-27 04:44:26 s 1 -49626.315 0 +382556.54 1030.0 C57
2019-10-27 05:14:26 S 01 50 13.414 +20 41 51.50 V C57
2019-10-27 05:14:26 s 1 -50624.200 0 +382350.54 2960.0 C57
2019-10-27 05:44:26 S 01 50 12.007 +20 41 31.85 V C57
2019-10-27 05:44:26 s 1 -51620.799 0 +382135.91 3950.0 C57
2019-10-27 06:14:26 S 01 50 10.510 +20 41 14.14 V C57
2019-10-27 06:14:26 s 1 -52616.089 0 +381912.67 3940.0 C57
2019-10-27 06:44:26 S 01 50 09.058 +20 40 56.50 V C57
2019-10-27 06:44:26 s 1 -53610.048 0 +381680.79 2840.0 C57
2019-10-27 07:14:26 S 01 50 07.562 +20 40 38.68 V C57
2019-10-27 07:14:26 s 1 -54602.652 0 +381440.30 600.0 C57
2019-10-27 07:44:26 S 01 50 06.194 +20 40 20.32 V C57
2019-10-27 07:44:26 s 1 -55593.878 0 +381191.18 7150.0 C57
2019-10-27 08:14:26 S 01 50 04.699 +20 40 02.03 V C57
2019-10-27 08:14:26 s 1 -56583.703 0 +380933.43 2410.0 C57
2019-10-27 08:36:58 C 01 51 39.13 +20 36 46.5 V T05
2019-10-27 08:42:14 C 01 51 38.85 +20 36 43.7 V T05
2019-10-27 08:51:54 C 01 51 38.34 +20 36 38.2 V T05
2019-10-27 09:06:39 C 01 51 37.52 +20 36 29.3 V T05
2019-10-27 09:44:26 S 01 50 00.197 +20 39 07.99 V C57
2019-10-27 09:44:26 s 1 -59544.542 0 +380108.42 9770.0 C57
2019-10-27 10:14:26 S 01 49 58.781 +20 38 48.84 V C57
2019-10-27 10:14:26 s 1 -60528.532 0 +379816.16 9190.0 C57
2019-10-27 10:44:26 S 01 49 57.502 +20 38 32.24 V C57
2019-10-27 10:44:26 s 1 -61511.004 0 +379515.27 6970.0 C57
2019-10-27 11:14:26 S 01 49 56.006 +20 38 13.24 V C57
2019-10-27 11:14:26 s 1 -62491.935 0 +379205.74 3040.0 C57
2019-10-27 11:44:26 S 01 49 54.516 +20 37 56.32 V C57
2019-10-27 11:44:26 s 1 -63471.303 0 +378887.57 7340.0 C57
2019-10-27 12:14:26 S 01 49 53.234 +20 37 37.88 V C57
2019-10-27 12:14:26 s 1 -64449.082 0 +378560.77 9790.0 C57
2019-10-27 13:14:26 S 01 49 50.340 +20 37 02.42 V C57
2019-10-27 13:14:26 s 1 -66399.781 0 +377881.24 8850.0 C57
2019-10-27 13:44:26 S 01 49 49.015 +20 36 42.59 V C57
2019-10-27 13:44:26 s 1 -67372.654 0 +377528.50 5330.0 C57
2019-10-27 14:14:26 S 01 49 47.534 +20 36 26.14 V C57
2019-10-27 14:14:26 s 1 -68343.843 0 +377167.11 9670.0 C57
2019-10-27 14:44:26 S 01 49 46.106 +20 36 09.00 V C57
2019-10-27 14:44:26 s 1 -69313.324 0 +376797.07 1810.0 C57
2019-10-27 15:14:26 S 01 49 44.566 +20 35 48.08 V C57
2019-10-27 15:14:26 s 1 -70281.074 0 +376418.38 1670.0 C57
2019-10-27 16:14:26 S 01 49 41.940 +20 35 12.26 V C57
2019-10-27 16:14:26 s 1 -72211.282 0 +375635.00 4260.0 C57
2019-10-27 16:44:26 S 01 49 40.481 +20 34 54.84 V C57
2019-10-27 16:44:26 s 1 -73173.692 0 +375230.30 6850.0 C57
2019-10-27 17:14:26 S 01 49 39.221 +20 34 39.50 V C57
2019-10-27 17:14:26 s 1 -74134.271 0 +374816.94 6870.0 C57
2019-10-27 17:44:26 S 01 49 37.798 +20 34 20.06 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)