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
2019-10-14 06:44:26 s 1 -62746.177 0 +378463.41 750.0 C57
2019-10-14 07:14:26 S 02 09 20.983 +24 08 46.25 V C57
2019-10-14 07:14:26 s 1 -63762.496 0 +378221.32 1570.0 C57
2019-10-14 07:44:26 S 02 09 18.545 +24 08 23.42 V C57
2019-10-14 07:44:26 s 1 -64777.351 0 +377970.46 950.0 C57
2019-10-14 08:14:26 S 02 09 16.090 +24 08 00.28 V C57
2019-10-14 08:14:26 s 1 -65790.719 0 +377710.84 8830.0 C57
2019-10-14 08:44:26 S 02 09 13.627 +24 07 38.46 V C57
2019-10-14 08:44:26 s 1 -66802.576 0 +377442.46 5120.0 C57
2019-10-14 09:14:26 S 02 09 11.249 +24 07 16.93 V C57
2019-10-14 09:14:26 s 1 -67812.898 0 +377165.30 9760.0 C57
2019-10-14 11:14:26 S 02 09 01.706 +24 05 46.10 V C57
2019-10-14 11:14:26 s 1 -71838.337 0 +375969.04 470.0 C57
2019-10-14 11:44:26 S 02 08 59.508 +24 05 25.62 V C57
2019-10-14 11:44:26 s 1 -72840.612 0 +375648.06 5830.0 C57
2019-10-14 12:44:26 S 02 08 54.610 +24 04 39.25 V C57
2019-10-14 12:44:26 s 1 -74840.087 0 +374979.79 280.0 C57
2019-10-14 13:14:26 S 02 08 52.246 +24 04 15.38 V C57
2019-10-14 13:14:26 s 1 -75837.238 0 +374632.50 9230.0 C57
2019-10-14 14:44:26 S 02 08 45.149 +24 03 09.65 V C57
2019-10-14 14:44:26 s 1 -78818.039 0 +373537.99 2140.0 C57
2019-10-14 15:14:26 S 02 08 42.758 +24 02 47.51 V C57
2019-10-14 15:14:26 s 1 -79808.005 0 +373155.60 1550.0 C57
2019-10-14 15:44:26 S 02 08 40.603 +24 02 24.68 V C57
2019-10-14 15:44:26 s 1 -80796.112 0 +372764.43 8400.0 C57
2019-10-14 17:14:26 S 02 08 33.451 +24 01 15.31 V C57
2019-10-14 17:14:26 s 1 -83749.019 0 +371538.21 2870.0 C57
2019-10-14 17:44:26 S 02 08 31.229 +24 00 53.96 V C57
2019-10-14 17:44:26 s 1 -84729.431 0 +371111.90 8750.0 C57
2019-10-14 18:14:26 S 02 08 28.939 +24 00 31.90 V C57
2019-10-14 18:14:26 s 1 -85707.854 0 +370676.79 1710.0 C57
2019-10-14 18:44:26 S 02 08 26.510 +24 00 09.54 V C57
2019-10-14 18:44:26 s 1 -86684.263 0 +370232.88 1670.0 C57
2019-10-14 19:14:26 S 02 08 24.374 +23 59 48.12 V C57
2019-10-14 19:14:26 s 1 -87658.631 0 +369780.17 8560.0 C57
2019-10-14 19:44:26 S 02 08 22.034 +23 59 24.86 V C57
2019-10-14 19:44:26 s 1 -88630.932 0 +369318.66 2310.0 C57
2019-10-14 20:14:26 S 02 08 19.663 +23 59 01.61 V C57
2019-10-14 20:14:26 s 1 -89601.139 0 +368848.34 2840.0 C57
2019-10-14 21:14:26 S 02 08 15.024 +23 58 16.14 V C57
2019-10-14 21:14:26 s 1 -91535.164 0 +367881.26 3940.0 C57
2019-10-15 00:14:26 S 02 08 01.582 +23 56 01.46 V C57
2019-10-15 00:14:26 s 1 -97284.186 0 +364768.12 2210.0 C57
2019-10-15 00:44:26 S 02 07 59.278 +23 55 40.33 V C57
2019-10-15 00:44:26 s 1 -98234.331 0 +364218.31 380.0 C57
2019-10-15 01:14:26 S 02 07 57.053 +23 55 16.00 V C57
2019-10-15 01:14:26 s 1 -99182.109 0 +363659.64 4570.0 C57
2019-10-15 01:44:26 S 02 07 54.792 +23 54 54.65 V C57
2019-10-15 01:44:26 s 1 -100127.49 1 +363092.11 4710.0 C57
2019-10-15 02:14:26 S 02 07 52.594 +23 54 32.11 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)