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
1998-05-26 13:27:14 C 13 50 59.00 +03 12 58.4 360
1998-05-26 13:34:00 C 13 50 59.64 +03 13 01.8 360
1998-05-28 04:46:55 C 13 54 55.61 +03 32 48.7 19.5 a 704
1998-05-28 05:15:00 C 13 54 58.30 +03 33 03.3 19.9 a 704
1998-05-28 05:43:06 C 13 55 00.99 +03 33 15.9 19.7 a 704
1998-05-28 06:11:11 C 13 55 03.65 +03 33 28.5 19.3 a 704
1998-05-28 06:39:21 C 13 55 06.36 +03 33 41.0 19.1 a 704
1998-05-29 03:52:51 C 13 57 17.35 +03 43 28.1 18.8 a 704
1998-05-29 04:21:12 C 13 57 20.02 +03 43 41.2 19.8 a 704
1998-05-29 04:49:25 C 13 57 22.75 +03 43 54.3 19.1 a 704
1998-05-29 05:17:43 C 13 57 25.41 +03 44 07.3 19.4 a 704
1998-05-31 23:01:15 C 14 04 16.00 +04 10 09.3 557
1998-05-31 23:04:06 C 14 04 16.27 +04 10 09.2 557
1998-06-02 21:01:26 C 14 09 11.45 +04 24 54.3 046
1998-06-02 21:03:34 C 14 09 11.61 +04 24 54.3 046
1998-06-02 21:05:10 C 14 09 11.80 +04 24 54.7 046
1998-06-02 21:06:52 C 14 09 11.94 +04 24 54.9 046
1998-06-12 06:49:02 C 14 34 18.04 +04 56 50.5 658
1998-06-12 06:53:13 C 14 34 18.50 +04 56 50.0 658
1998-06-12 06:57:44 C 14 34 19.01 +04 56 49.8 658
1998-06-14 21:41:25 C 14 41 28.75 +04 54 36.7 046
1998-06-14 21:46:05 C 14 41 29.29 +04 54 36.2 046
1998-06-14 23:01:25 C 14 41 37.63 +04 54 31.1 557
1998-06-16 07:50:19 C 14 45 23.40 +04 51 34.1 658
1998-06-16 07:56:21 C 14 45 24.06 +04 51 33.4 658
1998-06-16 08:00:29 C 14 45 24.51 +04 51 33.2 658
1998-06-26 05:17:33 C 15 12 44.04 +03 58 32.8 z 711
1998-06-26 05:35:56 C 15 12 46.08 +03 58 26.6 z 711
1998-06-27 05:08:28 C 15 15 28.77 +03 50 31.9 z 711
1998-07-28 05:00:49 C 16 37 55.59 -02 23 03.0 a 696
1998-07-28 05:05:59 C 16 37 56.09 -02 23 05.0 a 696
2001-03-02 05:32:50 C 08 08 56.33 +05 22 43.0 d 691
2001-03-02 05:45:04 C 08 08 55.90 +05 22 47.9 d 691
2001-03-02 05:56:06 C 08 08 55.49 +05 22 53.4 d 691
2014-09-22 02:52:57 C 21 44 13.08 -01 21 06.2 u H21
2014-09-22 03:11:33 C 21 44 12.90 -01 21 14.8 u H21
2014-09-22 03:30:22 C 21 44 12.69 -01 21 22.3 u H21
2017-01-28 09:01:23 C 11 53 15.35 -12 52 15.7 u H21
2017-01-28 09:15:41 C 11 53 15.89 -12 52 22.0 u H21
2017-01-28 09:24:27 C 11 53 16.23 -12 52 25.9 u H21
2017-02-04 13:40:43 C 11 59 34.645 -14 06 11.00 L F51
2017-02-04 13:57:47 C 11 59 35.173 -14 06 17.94 L F51
2017-02-04 14:14:47 C 11 59 35.709 -14 06 24.80 L F51
2017-02-04 14:31:49 C 11 59 36.224 -14 06 31.62 L F51
2017-02-22 11:42:55 C 12 10 52.414 -16 25 20.32 L F51
2017-02-22 12:00:43 C 12 10 52.666 -16 25 24.28 L F51
2017-02-22 12:18:28 C 12 10 52.914 -16 25 28.14 L F51
2017-02-22 12:36:14 C 12 10 53.166 -16 25 32.12 L F51
2017-03-17 10:27:32 C 12 14 37.908 -16 30 52.42 L F51
2017-03-17 10:44:26 C 12 14 37.771 -16 30 48.35 L F51