2018 HK

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3787603641 ± 2.26e-07
Semi-major axis (a)1.1753380114 AU ± 2.14e-08
Inclination (i)29.36620397° ± 2.77e-05
Long. of Asc. Node (Ω)208.14528117° ± 1.44e-05
Arg. of Perihelion (ω)232.64710117° ± 4.04e-05
Mean Anomaly (M)82.25769807° ± 5.30e-05
Mean Motion (n)0.7735138663°/day ± 2.11e-08
Perihelion dist (q)0.73016656 AU ± 2.65e-07
Aphelion dist (Q)1.62050946 AU ± 2.67e-07
Orbital Period1.27421928 yr ± 3.48e-08
Physical Parameters
H (abs. magnitude)21.45
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.382″
Uncertainty0
Orbit TypeApollo
MOID0.162221 AU
Observations Used64
Oppositions1
Arc Total2017-2023
First Observation Used2017-08-19
Last Observation Used2023-04-28
Observations (66)
Date Type RA Dec Mag Band Observatory
2018-05-10 08:45:10 C 14 35 45.80 +12 33 00.6 V G96
2018-05-10 08:52:41 C 14 35 45.21 +12 33 10.4 V G96
2018-05-15 04:33:29 C 14 27 04.00 +14 51 23.5 o 291
2018-05-15 04:42:06 C 14 27 03.34 +14 51 32.4 o 291
2018-05-15 04:50:44 C 14 27 02.72 +14 51 41.5 o 291
2018-05-17 03:41:28 C 14 23 57.17 +15 37 22.5 u H21
2018-05-17 03:54:36 C 14 23 56.33 +15 37 34.2 u H21
2018-05-17 04:03:57 C 14 23 55.70 +15 37 43.3 u H21
2022-06-29 07:51:05 C 17 05 40.355 +34 24 12.63 V T12
2022-06-29 08:07:38 C 17 05 38.949 +34 24 12.87 V T12
2022-06-29 08:41:57 C 17 05 36.037 +34 24 13.27 V T12
2022-07-04 09:56:11 C 16 56 14.133 +34 14 56.44 V T12
2022-07-04 10:27:39 C 16 56 11.752 +34 14 51.26 V T12
2023-04-28 00:34:54 C 10 13 12.75 -01 49 55.0 V 807
2023-04-28 00:45:33 C 10 13 14.55 -01 49 30.4 V 807
2023-04-28 00:56:13 C 10 13 16.39 -01 49 06.1 V 807