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
2017-03-19 08:24:32 C 12 14 29.12 -16 18 29.7 q 703
2017-03-19 08:31:48 C 12 14 28.96 -16 18 27.9 q 703
2017-03-19 08:39:02 C 12 14 28.96 -16 18 25.6 q 703
2017-03-19 08:46:16 C 12 14 28.90 -16 18 22.9 q 703
2017-03-25 07:16:34 C 12 13 48.83 -15 24 37.5 q G96
2017-03-25 07:22:40 C 12 13 48.76 -15 24 34.7 q G96
2017-03-25 07:28:46 C 12 13 48.70 -15 24 32.0 q G96
2017-03-25 07:34:52 C 12 13 48.63 -15 24 29.1 q G96
2017-03-26 07:42:42 C 12 13 40.63 -15 13 02.5 q 703
2017-03-26 07:47:42 C 12 13 40.57 -15 12 59.7 q 703
2017-03-26 07:52:41 C 12 13 40.54 -15 12 57.6 q 703
2017-03-26 07:57:41 C 12 13 40.50 -15 12 55.2 q 703
2017-03-27 00:50:38 C 12 13 36.21 -15 04 05.1 o W92
2017-03-27 01:14:15 C 12 13 35.90 -15 03 52.8 o W92
2017-03-27 01:26:10 C 12 13 35.93 -15 03 48.4 o W92
2017-03-27 23:04:16 C 12 13 27.59 -14 52 32.5 o K95
2017-03-27 23:07:49 C 12 13 27.56 -14 52 31.2 o K95
2017-03-28 08:34:07 C 12 13 24.01 -14 47 47.5 q H45
2017-03-28 08:36:15 C 12 13 23.97 -14 47 46.3 q H45
2017-03-28 08:37:48 C 12 13 23.96 -14 47 45.5 q H45
2017-03-28 08:39:23 C 12 13 23.95 -14 47 44.2 q H45
2017-03-28 08:41:14 C 12 13 23.95 -14 47 43.6 q H45
2017-03-29 06:33:10 C 12 13 18.20 -14 35 31.3 q 703
2017-03-29 06:40:52 C 12 13 18.07 -14 35 28.1 q 703
2017-03-29 06:52:00 C 12 13 17.92 -14 35 21.6 q 703
2017-03-29 06:59:40 C 12 13 17.79 -14 35 17.5 q 703
2017-03-31 08:32:10 C 12 13 02.73 -14 05 36.9 q H45
2017-03-31 08:33:54 C 12 13 02.70 -14 05 36.1 q H45
2017-03-31 08:35:32 C 12 13 02.68 -14 05 34.6 q H45
2017-03-31 08:37:22 C 12 13 02.68 -14 05 33.2 q H45
2017-03-31 08:38:50 C 12 13 02.68 -14 05 32.8 q H45
2017-03-31 08:40:23 C 12 13 02.67 -14 05 31.1 q H45
2017-04-01 08:47:13 C 12 12 56.67 -13 50 06.0 q H45
2017-04-01 08:49:16 C 12 12 56.62 -13 50 04.7 q H45
2017-04-01 08:51:05 C 12 12 56.57 -13 50 03.6 q H45
2017-04-01 08:53:05 C 12 12 56.57 -13 50 01.5 q H45
2017-04-01 08:54:54 C 12 12 56.55 -13 50 00.8 q H45
2017-04-01 08:56:38 C 12 12 56.54 -13 49 59.1 q H45
2017-04-01 11:04:50 C 12 12 56.659 -13 48 31.94 L F51
2017-04-01 11:19:40 C 12 12 56.508 -13 48 22.07 L F51
2017-04-01 11:34:28 C 12 12 56.363 -13 48 12.23 L F51
2017-04-04 10:53:25 C 12 12 44.73 -12 58 41.5 L T05
2017-04-04 11:16:06 C 12 12 44.50 -12 58 25.6 L T05
2017-04-04 11:38:40 C 12 12 44.42 -12 58 07.8 L T05
2017-04-04 12:01:18 C 12 12 44.21 -12 57 51.6 L T05
2017-04-06 08:15:16 C 12 12 42.18 -12 24 32.4 q H45
2017-04-06 08:17:12 C 12 12 42.16 -12 24 30.9 q H45
2017-04-06 08:19:03 C 12 12 42.16 -12 24 29.4 q H45
2017-04-06 08:20:49 C 12 12 42.15 -12 24 29.2 q H45
2017-04-06 08:22:52 C 12 12 42.13 -12 24 27.5 q H45