488465 (1998 HK1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4268168262 ± 8.39e-08
Semi-major axis (a)2.1591287938 AU ± 1.57e-09
Inclination (i)7.92146136° ± 7.56e-06
Long. of Asc. Node (Ω)213.52686241° ± 1.61e-05
Arg. of Perihelion (ω)24.96447302° ± 3.29e-05
Mean Anomaly (M)243.02413250° ± 1.11e-05
Mean Motion (n)0.3106665199°/day ± 3.39e-10
Perihelion dist (q)1.23757629 AU ± 1.81e-07
Aphelion dist (Q)3.08068129 AU ± 1.81e-07
Orbital Period3.17261829 yr ± 3.46e-09
Physical Parameters
H (abs. magnitude)19.84
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.480″
Uncertainty0
Orbit TypeAmor
MOID0.233497 AU
Observations Used300
Oppositions15
Arc Total1998-2020
First Observation Used1998-04-01
Last Observation Used2020-01-23
Observations (310)
Date Type RA Dec Mag Band Observatory
2017-06-28 05:57:02 C 14 50 26.47 +03 48 05.9 q 703
2017-06-28 06:04:43 C 14 50 27.49 +03 48 01.8 q 703
2017-07-23 14:01:45 C 16 06 42.52 -01 27 32.8 q D29
2017-07-23 14:22:06 C 16 06 44.91 -01 27 44.3 q D29
2017-08-08 06:45:06 C 16 50 44.918 -04 59 18.29 L F51
2017-08-08 07:01:18 C 16 50 46.698 -04 59 27.11 L F51
2017-08-08 07:17:30 C 16 50 48.472 -04 59 35.68 L F51
2020-01-23 11:48:07 C 08 53 19.389 +02 02 02.86 U F52
2020-01-23 12:08:30 C 08 53 18.368 +02 02 03.67 U F52
2020-01-23 12:28:46 C 08 53 17.347 +02 02 04.58 U F52