523941 (1998 HK49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3314962563 ± 9.13e-09
Semi-major axis (a)1.3818242233 AU ± 4.73e-10
Inclination (i)7.62193671° ± 3.97e-06
Long. of Asc. Node (Ω)57.20639684° ± 1.15e-05
Arg. of Perihelion (ω)81.57984504° ± 1.71e-05
Mean Anomaly (M)34.75202452° ± 6.65e-06
Mean Motion (n)0.6067825375°/day ± 3.11e-10
Perihelion dist (q)0.92375467 AU ± 1.26e-08
Aphelion dist (Q)1.83989378 AU ± 1.26e-08
Orbital Period1.62434846 yr ± 8.33e-10
Physical Parameters
H (abs. magnitude)22.18
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.243″
Uncertainty0
Orbit TypeApollo
MOID0.075283 AU
Observations Used181
Oppositions10
Arc Total1998-2024
First Observation Used1998-04-30
Last Observation Used2024-06-06
Observations (191)
Date Type RA Dec Mag Band Observatory
2023-12-30 07:54:22 C 00 06 23.817 +27 44 22.07 X F52
2023-12-30 08:04:52 C 00 06 22.488 +27 44 36.53 X F52
2024-04-17 11:23:18 C 17 01 46.405 -04 18 38.41 V G96
2024-04-17 11:30:10 C 17 01 45.541 -04 18 49.39 V G96
2024-04-17 11:37:06 C 17 01 44.663 -04 19 00.08 V G96
2024-04-17 11:43:58 C 17 01 43.777 -04 19 11.10 V G96
2024-04-17 13:33:56 C 17 01 31.746 -04 21 58.28 X F52
2024-04-17 13:53:51 C 17 01 29.165 -04 22 29.88 X F52
2024-04-17 14:13:47 C 17 01 26.581 -04 23 01.68 X F52
2024-04-20 09:53:50 C 16 53 21.624 -06 09 27.65 V G96
2024-04-20 10:01:16 C 16 53 20.620 -06 09 39.35 V G96
2024-04-20 10:08:42 C 16 53 19.637 -06 09 50.72 V G96
2024-04-20 10:16:07 C 16 53 18.668 -06 10 02.03 V G96
2024-04-23 05:33:33 C 16 44 58.26 -07 51 34.1 X W84
2024-04-23 05:38:57 C 16 44 57.53 -07 51 42.1 X W84
2024-04-23 06:53:55 C 16 44 47.25 -07 53 34.4 X W84
2024-04-23 06:59:23 C 16 44 46.50 -07 53 42.5 X W84
2024-04-29 10:39:09 C 16 25 43.813 -11 23 09.67 V G96
2024-04-29 10:46:38 C 16 25 42.762 -11 23 19.90 V G96
2024-04-29 10:54:07 C 16 25 41.779 -11 23 29.11 V G96
2024-04-29 11:01:35 C 16 25 40.667 -11 23 39.12 V G96
2024-05-02 11:31:55 C 16 16 16.088 -12 56 23.86 X F51
2024-05-02 11:48:18 C 16 16 13.781 -12 56 43.91 X F51
2024-05-02 12:05:07 C 16 16 11.407 -12 57 04.69 X F51
2024-05-02 12:21:29 C 16 16 09.108 -12 57 24.73 X F51
2024-05-06 12:37:25 C 16 03 51.129 -14 49 20.86 X F52
2024-05-06 12:47:45 C 16 03 49.729 -14 49 32.07 X F52
2024-05-06 12:58:04 C 16 03 48.329 -14 49 43.14 X F52
2024-05-06 13:08:23 C 16 03 46.940 -14 49 54.30 X F52
2024-05-07 12:36:17 C 16 00 52.030 -15 15 09.69 X F51
2024-05-07 12:53:31 C 16 00 49.731 -15 15 27.63 X F51
2024-05-07 13:10:45 C 16 00 47.436 -15 15 45.60 X F51
2024-05-07 13:31:38 C 16 00 44.663 -15 16 07.17 X F51
2024-05-09 08:24:02 C 15 55 32.398 -16 00 14.36 V G96
2024-05-09 08:31:24 C 15 55 31.483 -16 00 21.82 V G96
2024-05-09 08:38:47 C 15 55 30.572 -16 00 30.35 V G96
2024-05-09 08:46:10 C 15 55 29.554 -16 00 36.54 V G96
2024-06-06 08:21:58 C 15 04 04.340 -22 46 09.24 X F52
2024-06-06 08:38:04 C 15 04 03.751 -22 46 14.71 X F52
2024-06-06 08:54:13 C 15 04 03.173 -22 46 20.08 X F52
2024-06-06 09:10:19 C 15 04 02.569 -22 46 25.47 X F52