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
2019-10-23 07:14:26 s 1 +130553.82 5 +257986.79 7150.0 C57
2019-10-23 07:44:26 S 01 55 57.036 +21 39 15.59 V C57
2019-10-23 07:44:26 s 1 +129841.35 2 +259651.73 8950.0 C57
2019-10-23 08:14:26 S 01 55 54.842 +21 38 56.62 V C57
2019-10-23 08:14:26 s 1 +129122.34 1 +261303.38 7690.0 C57
2019-10-23 08:44:26 S 01 55 52.608 +21 38 38.15 V C57
2019-10-23 08:44:26 s 1 +128396.90 4 +262941.80 3690.0 C57
2019-10-23 09:14:26 S 01 55 50.482 +21 38 20.69 V C57
2019-10-23 09:14:26 s 1 +127665.15 0 +264567.07 7300.0 C57
2019-10-23 10:16:00 C 01 56 35.34 +21 34 33.6 V T05
2019-10-23 10:20:10 C 01 56 35.08 +21 34 31.0 V T05
2019-10-23 10:30:25 C 01 56 33.46 +21 34 16.6 U I41
2019-10-23 10:34:24 C 01 56 33.22 +21 34 14.0 U I41
2019-10-23 10:38:23 C 01 56 32.97 +21 34 11.3 U I41
2019-10-23 10:42:23 C 01 56 32.73 +21 34 08.7 U I41
2019-10-23 10:44:26 S 01 55 43.850 +21 37 22.08 V C57
2019-10-23 10:44:26 s 1 +125433.05 9 +269364.57 6980.0 C57
2019-10-23 10:45:41 C 01 56 32.52 +21 34 06.5 U I41
2019-10-23 10:47:41 C 01 56 32.40 +21 34 05.2 U I41
2019-10-23 10:49:38 C 01 56 33.17 +21 34 12.1 V T05
2019-10-23 10:51:42 C 01 56 32.15 +21 34 02.5 U I41
2019-10-23 10:55:43 C 01 56 31.91 +21 33 59.9 U I41
2019-10-23 11:08:15 C 01 56 31.97 +21 33 59.9 V T05
2019-10-23 11:14:26 S 01 55 41.599 +21 37 03.50 V C57
2019-10-23 11:14:26 s 1 +124677.09 9 +270937.85 4210.0 C57
2019-10-23 11:44:26 S 01 55 39.377 +21 36 46.12 V C57
2019-10-23 11:44:26 s 1 +123915.34 3 +272498.29 630.0 C57
2019-10-23 12:14:26 S 01 55 37.186 +21 36 27.14 V C57
2019-10-23 12:14:26 s 1 +123147.88 9 +274045.96 6520.0 C57
2019-10-23 12:44:26 S 01 55 35.076 +21 36 09.65 V C57
2019-10-23 12:44:26 s 1 +122374.83 3 +275580.90 2180.0 C57
2019-10-23 13:14:26 S 01 55 32.858 +21 35 51.79 V C57
2019-10-23 13:14:26 s 1 +121596.27 1 +277103.19 7910.0 C57
2019-10-23 13:44:26 S 01 55 30.732 +21 35 32.46 V C57
2019-10-23 13:44:26 s 1 +120812.29 6 +278612.88 3970.0 C57
2019-10-23 14:14:26 S 01 55 28.565 +21 35 15.43 V C57
2019-10-23 14:14:26 s 1 +120022.99 8 +280110.04 650.0 C57
2019-10-23 14:44:26 S 01 55 26.458 +21 34 56.78 V C57
2019-10-23 14:44:26 s 1 +119228.46 8 +281594.71 8230.0 C57
2019-10-23 15:14:26 S 01 55 24.264 +21 34 36.73 V C57
2019-10-23 15:14:26 s 1 +118428.79 4 +283066.96 6970.0 C57
2019-10-23 15:44:26 S 01 55 21.936 +21 34 19.70 V C57
2019-10-23 15:44:26 s 1 +117624.09 4 +284526.88 6580.0 C57
2019-10-23 17:37:40 C 01 56 11.24 +21 29 50.8 q C97
2019-10-23 17:39:52 C 01 56 11.09 +21 29 49.5 q C97
2019-10-23 18:14:26 S 01 55 11.532 +21 32 41.46 V C57
2019-10-23 18:14:26 s 1 +113527.50 9 +291642.70 7660.0 C57
2019-10-23 18:44:26 S 01 55 09.166 +21 32 27.46 V C57
2019-10-23 18:44:26 s 1 +112694.17 3 +293029.53 1660.0 C57
2019-10-23 19:14:26 S 01 55 07.128 +21 32 08.20 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)