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
2017-04-06 08:24:33 C 12 12 42.13 -12 24 25.3 q H45
2017-04-15 11:29:56 C 12 14 03.13 -09 13 53.0 q Q60
2017-04-15 11:39:15 C 12 14 03.18 -09 13 45.6 q Q60
2017-04-15 11:48:32 C 12 14 03.23 -09 13 35.4 q Q60
2017-04-17 14:19:16 C 12 14 48.42 -08 25 42.1 q D29
2017-04-17 14:37:05 C 12 14 48.60 -08 25 25.0 q D29
2017-04-17 14:54:55 C 12 14 48.75 -08 25 07.4 q D29
2017-04-19 05:43:06 C 12 15 32.22 -07 47 12.2 q G96
2017-04-19 05:49:26 C 12 15 32.30 -07 47 05.8 q G96
2017-04-19 05:55:36 C 12 15 32.37 -07 46 59.8 q G96
2017-04-19 06:01:45 C 12 15 32.46 -07 46 53.7 q G96
2017-04-19 23:39:03 C 12 15 54.08 -07 29 35.0 U 160
2017-04-19 23:42:01 C 12 15 54.09 -07 29 30.9 U 160
2017-04-19 23:45:00 C 12 15 54.12 -07 29 27.5 U 160
2017-04-20 03:11:08 C 12 15 59.94 -07 26 00.6 q H45
2017-04-20 03:12:28 C 12 15 59.94 -07 25 59.5 q H45
2017-04-20 03:14:20 C 12 15 59.96 -07 25 57.6 q H45
2017-04-20 03:15:55 C 12 15 59.99 -07 25 55.8 q H45
2017-04-20 03:17:39 C 12 16 00.01 -07 25 54.7 q H45
2017-04-20 03:18:52 C 12 16 00.04 -07 25 53.0 q H45
2017-04-20 07:36:14 C 12 16 05.830 -07 21 32.17 L F51
2017-04-20 07:54:03 C 12 16 06.098 -07 21 14.56 L F51
2017-04-20 08:11:56 C 12 16 06.368 -07 20 56.86 L F51
2017-04-20 08:29:49 C 12 16 06.634 -07 20 39.16 L F51
2017-04-20 23:15:08 C 12 16 26.45 -07 06 07.6 q 160
2017-04-20 23:18:09 C 12 16 26.48 -07 06 03.9 q 160
2017-04-20 23:21:10 C 12 16 26.54 -07 06 00.3 q 160
2017-04-21 23:23:51 C 12 17 02.52 -06 42 00.6 q 160
2017-04-21 23:26:38 C 12 17 02.56 -06 41 58.2 q 160
2017-04-21 23:29:24 C 12 17 02.59 -06 41 55.9 q 160
2017-04-23 22:32:12 C 12 18 22.70 -05 54 43.9 q 160
2017-04-23 22:35:13 C 12 18 22.81 -05 54 40.7 q 160
2017-04-23 22:38:15 C 12 18 22.89 -05 54 37.8 q 160
2017-04-24 05:24:41 C 12 18 35.43 -05 47 46.5 q H45
2017-04-24 05:26:21 C 12 18 35.44 -05 47 44.7 q H45
2017-04-24 05:28:18 C 12 18 35.50 -05 47 42.8 q H45
2017-04-24 05:29:51 C 12 18 35.56 -05 47 41.0 q H45
2017-04-24 05:31:21 C 12 18 35.57 -05 47 39.6 q H45
2017-04-24 05:32:54 C 12 18 35.63 -05 47 38.6 q H45
2017-04-24 06:36:07 C 12 18 37.71 -05 46 34.0 q 703
2017-04-24 06:43:50 C 12 18 37.81 -05 46 25.5 q 703
2017-04-24 06:51:31 C 12 18 38.02 -05 46 17.7 q 703
2017-04-24 06:59:12 C 12 18 38.15 -05 46 10.1 q 703
2017-04-25 06:17:59 C 12 19 23.51 -05 22 45.3 q H45
2017-04-25 06:19:47 C 12 19 23.54 -05 22 44.2 q H45
2017-04-25 06:21:13 C 12 19 23.59 -05 22 42.3 q H45
2017-04-25 06:22:39 C 12 19 23.61 -05 22 41.0 q H45
2017-04-25 06:24:06 C 12 19 23.67 -05 22 39.1 q H45
2017-04-25 06:25:45 C 12 19 23.73 -05 22 38.0 q H45
2017-05-02 04:06:36 C 12 26 26.26 -02 39 05.7 q G96