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
2019-10-24 07:44:26 s 1 +89653.227 0 +325018.05 8920.0 C57
2019-10-24 08:14:26 S 01 54 13.387 +21 24 07.42 V C57
2019-10-24 08:14:26 s 1 +88722.073 0 +326097.45 9630.0 C57
2019-10-24 08:44:26 S 01 54 11.278 +21 23 48.88 V C57
2019-10-24 08:44:26 s 1 +87788.112 0 +327166.03 8650.0 C57
2019-10-24 09:14:26 S 01 54 09.329 +21 23 30.52 V C57
2019-10-24 09:14:26 s 1 +86851.397 0 +328223.86 6140.0 C57
2019-10-24 09:44:26 S 01 54 07.337 +21 23 12.05 V C57
2019-10-24 09:44:26 s 1 +85911.977 0 +329270.95 2250.0 C57
2019-10-24 10:14:26 S 01 54 05.390 +21 22 52.18 V C57
2019-10-24 10:14:26 s 1 +84969.902 0 +330307.34 7130.0 C57
2019-10-24 10:44:26 S 01 54 03.358 +21 22 34.61 V C57
2019-10-24 10:44:26 s 1 +84025.220 0 +331333.08 930.0 C57
2019-10-24 11:44:26 S 01 53 59.326 +21 21 58.00 V C57
2019-10-24 11:44:26 s 1 +82128.229 0 +333352.72 5900.0 C57
2019-10-24 12:14:26 S 01 53 57.331 +21 21 37.62 V C57
2019-10-24 12:14:26 s 1 +81176.014 0 +334346.69 7350.0 C57
2019-10-24 12:44:26 S 01 53 55.339 +21 21 17.68 V C57
2019-10-24 12:44:26 s 1 +80221.382 0 +335330.14 8310.0 C57
2019-10-24 13:14:26 S 01 53 53.448 +21 21 01.33 V C57
2019-10-24 13:14:26 s 1 +79264.377 0 +336303.10 8910.0 C57
2019-10-24 13:44:26 S 01 53 51.540 +21 20 43.33 V C57
2019-10-24 13:44:26 s 1 +78305.047 0 +337265.60 9300.0 C57
2019-10-24 14:14:26 S 01 53 49.478 +21 20 24.00 V C57
2019-10-24 14:14:26 s 1 +77343.435 0 +338217.69 9610.0 C57
2019-10-24 16:45:15 C 01 54 54.86 +21 15 20.2 q C97
2019-10-24 16:47:26 C 01 54 54.74 +21 15 18.8 q C97
2019-10-24 16:49:37 C 01 54 54.59 +21 15 17.6 q C97
2019-10-24 16:51:48 C 01 54 54.47 +21 15 16.3 q C97
2019-10-24 18:44:26 S 01 53 31.810 +21 17 37.25 V C57
2019-10-24 18:44:26 s 1 +68593.357 0 +346322.61 900.0 C57
2019-10-24 19:14:26 S 01 53 30.036 +21 17 18.35 V C57
2019-10-24 19:14:26 s 1 +67611.272 0 +347172.18 7680.0 C57
2019-10-24 19:44:26 S 01 53 28.145 +21 16 59.95 V C57
2019-10-24 19:44:26 s 1 +66627.362 0 +348011.65 5790.0 C57
2019-10-24 20:14:26 S 01 53 26.230 +21 16 41.48 V C57
2019-10-24 20:14:26 s 1 +65641.668 0 +348841.07 5360.0 C57
2019-10-24 20:44:26 S 01 53 24.362 +21 16 23.20 V C57
2019-10-24 20:44:26 s 1 +64654.229 0 +349660.45 6510.0 C57
2019-10-24 21:14:26 S 01 53 22.478 +21 16 06.02 V C57
2019-10-24 21:14:26 s 1 +63665.081 0 +350469.82 9360.0 C57
2019-10-24 21:44:26 S 01 53 20.570 +21 15 46.48 V C57
2019-10-24 21:44:26 s 1 +62674.263 0 +351269.21 4010.0 C57
2019-10-24 22:14:26 S 01 53 18.641 +21 15 28.22 V C57
2019-10-24 22:14:26 s 1 +61681.812 0 +352058.65 600.0 C57
2019-10-24 22:44:26 S 01 53 16.596 +21 15 11.66 V C57
2019-10-24 22:44:26 s 1 +60687.765 0 +352838.16 9220.0 C57
2019-10-25 02:44:26 S 01 53 01.675 +21 12 40.75 V C57
2019-10-25 02:44:26 s 1 +52682.237 0 +358719.92 5030.0 C57
2019-10-25 03:14:26 S 01 52 59.839 +21 12 23.08 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)