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 16:14:26 s 1 +25152.906 0 +374047.55 9850.0 C57
2019-10-25 16:44:26 S 01 52 11.131 +21 04 03.86 V C57
2019-10-25 16:44:26 s 1 +24123.289 0 +374484.53 9800.0 C57
2019-10-25 17:14:26 S 01 52 09.312 +21 03 45.90 V C57
2019-10-25 17:14:26 s 1 +23093.230 0 +374912.35 5380.0 C57
2019-10-25 17:44:26 S 01 52 07.591 +21 03 26.75 V C57
2019-10-25 17:44:26 s 1 +22062.758 0 +375331.01 6670.0 C57
2019-10-25 18:14:26 S 01 52 05.827 +21 03 09.04 V C57
2019-10-25 18:14:26 s 1 +21031.898 0 +375740.54 3740.0 C57
2019-10-25 18:44:26 S 01 52 04.248 +21 02 51.07 V C57
2019-10-25 18:44:26 s 1 +20000.676 0 +376140.94 6680.0 C57
2019-10-25 19:44:26 S 01 52 00.684 +21 02 11.94 V C57
2019-10-25 19:44:26 s 1 +17937.256 0 +376914.43 520.0 C57
2019-10-25 20:14:26 S 01 51 58.922 +21 01 55.45 V C57
2019-10-25 20:14:26 s 1 +16905.110 0 +377287.54 1570.0 C57
2019-10-25 20:44:26 S 01 51 57.209 +21 01 37.74 V C57
2019-10-25 20:44:26 s 1 +15872.707 0 +377651.59 8820.0 C57
2019-10-25 21:14:26 S 01 51 55.462 +21 01 18.59 V C57
2019-10-25 21:14:26 s 1 +14840.074 0 +378006.58 2340.0 C57
2019-10-25 21:44:26 S 01 51 53.722 +21 01 01.27 V C57
2019-10-25 21:44:26 s 1 +13807.235 0 +378352.54 2220.0 C57
2019-10-25 22:14:26 S 01 51 52.063 +21 00 41.83 V C57
2019-10-25 22:14:26 s 1 +12774.218 0 +378689.47 8540.0 C57
2019-10-25 22:44:26 S 01 51 50.266 +21 00 23.44 V C57
2019-10-25 22:44:26 s 1 +11741.046 0 +379017.38 1370.0 C57
2019-10-25 23:14:26 S 01 51 48.662 +21 00 04.90 V C57
2019-10-25 23:14:26 s 1 +10707.746 0 +379336.29 790.0 C57
2019-10-25 23:44:26 S 01 51 46.891 +20 59 46.75 V C57
2019-10-26 00:14:26 S 01 51 45.209 +20 59 28.21 V C57
2019-10-26 00:44:26 S 01 51 43.550 +20 59 10.07 V C57
2019-10-26 02:44:26 S 01 51 36.900 +20 57 57.53 V C57
2019-10-26 03:14:26 S 01 51 35.230 +20 57 39.20 V C57
2019-10-26 03:44:26 S 01 51 33.530 +20 57 19.51 V C57
2019-10-26 04:14:26 S 01 51 31.788 +20 57 00.50 V C57
2019-10-26 04:44:26 S 01 51 30.194 +20 56 43.91 V C57
2019-10-26 05:14:26 S 01 51 28.577 +20 56 25.40 V C57
2019-10-26 05:44:26 S 01 51 26.916 +20 56 06.43 V C57
2019-10-26 06:14:26 S 01 51 25.260 +20 55 49.80 V C57
2019-10-26 06:44:26 S 01 51 23.842 +20 55 33.38 V C57
2019-10-26 08:14:26 S 01 51 18.600 +20 54 36.07 V C57
2019-10-26 08:44:26 S 01 51 17.150 +20 54 15.98 V C57
2019-10-26 09:14:26 S 01 51 15.322 +20 53 58.63 V C57
2019-10-26 10:44:26 S 01 51 10.555 +20 53 04.02 V C57
2019-10-26 10:44:26 s 1 -13037.271 0 +384212.84 1870.0 C57
2019-10-26 11:14:26 S 01 51 08.930 +20 52 47.57 V C57
2019-10-26 11:14:26 s 1 -14066.364 0 +384318.96 2120.0 C57
2019-10-26 11:44:26 S 01 51 07.337 +20 52 27.08 V C57
2019-10-26 11:44:26 s 1 -15094.987 0 +384416.32 800.0 C57
2019-10-26 12:14:26 S 01 51 05.724 +20 52 10.34 V C57
2019-10-26 12:14:26 s 1 -16123.117 0 +384504.94 8000.0 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)