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
2023-11-04 05:28:29 C 02 56 55.49 +07 30 34.7 V 691
2023-11-04 05:35:12 C 02 56 54.84 +07 30 36.8 V 691
2023-11-04 11:24:55 C 02 56 22.896 +07 32 12.56 X F52
2023-11-04 11:42:51 C 02 56 21.181 +07 32 17.16 X F52
2023-11-04 12:00:42 C 02 56 19.466 +07 32 21.65 X F52
2023-11-05 08:26:33 C 02 54 29.549 +07 37 44.58 V G96
2023-11-05 08:33:59 C 02 54 28.782 +07 37 46.78 V G96
2023-11-05 08:41:25 C 02 54 28.084 +07 37 49.04 V G96
2023-11-05 08:48:51 C 02 54 27.360 +07 37 51.02 V G96
2023-11-06 09:29:58 C 02 52 08.68 +07 44 55.0 V 291
2023-11-06 09:36:26 C 02 52 08.02 +07 44 56.8 V 291
2023-11-06 09:42:53 C 02 52 07.37 +07 44 58.8 V 291
2023-11-08 07:56:47 C 02 47 35.302 +07 59 41.27 X F52
2023-11-08 08:10:56 C 02 47 33.750 +07 59 46.15 X F52
2023-11-08 08:25:06 C 02 47 32.180 +07 59 51.08 X F52
2023-11-08 08:39:19 C 02 47 30.620 +07 59 55.83 X F52
2023-11-12 10:25:24 C 02 36 47.402 +08 37 14.96 X F51
2023-11-12 10:37:03 C 02 36 45.926 +08 37 19.95 X F51
2023-11-12 10:59:59 C 02 36 43.068 +08 37 29.53 X F51
2023-12-04 05:08:32 C 01 25 32.432 +14 47 51.66 X F52
2023-12-04 05:12:18 C 01 25 29.708 +14 47 47.04 V G96
2023-12-04 05:20:29 C 01 25 28.463 +14 47 54.96 V G96
2023-12-04 05:28:38 C 01 25 27.239 +14 48 02.70 V G96
2023-12-04 05:28:57 C 01 25 29.314 +14 48 12.07 X F52
2023-12-04 05:36:47 C 01 25 25.986 +14 48 10.73 V G96
2023-12-04 05:49:24 C 01 25 26.176 +14 48 32.45 X F52
2023-12-12 07:04:31 C 00 58 57.580 +18 14 48.09 X F51
2023-12-12 07:23:05 C 00 58 54.895 +18 15 09.20 X F51
2023-12-12 07:40:44 C 00 58 52.360 +18 15 29.04 X F51
2023-12-25 06:13:35 C 00 20 47.003 +24 51 06.40 X F51
2023-12-25 06:24:58 C 00 20 45.508 +24 51 21.96 X F51
2023-12-25 06:36:22 C 00 20 44.035 +24 51 37.14 X F51
2023-12-26 06:39:10 C 00 17 54.618 +25 25 10.70 X F52
2023-12-26 06:50:22 C 00 17 53.149 +25 25 26.09 X F52
2023-12-26 07:12:43 C 00 17 50.260 +25 25 55.85 X F52
2023-12-27 06:14:53 C 00 15 08.574 +25 58 29.38 X F52
2023-12-27 06:26:08 C 00 15 07.081 +25 58 44.51 X F52
2023-12-27 06:37:20 C 00 15 05.642 +25 58 59.81 X F52
2023-12-28 06:27:13 C 00 12 17.226 +26 32 58.40 X F51
2023-12-28 06:37:38 C 00 12 15.875 +26 33 12.72 X F51
2023-12-28 06:47:56 C 00 12 14.529 +26 33 26.37 X F51
2023-12-29 07:01:08 C 00 09 22.314 +27 08 17.27 X F51
2023-12-29 07:03:20 C 00 09 22.043 +27 08 20.35 X F52
2023-12-29 07:09:35 C 00 09 21.234 +27 08 29.13 X F51
2023-12-29 07:14:43 C 00 09 20.568 +27 08 36.08 X F52
2023-12-29 07:18:03 C 00 09 20.127 +27 08 40.57 X F51
2023-12-29 07:26:02 C 00 09 19.082 +27 08 51.73 X F52
2023-12-29 07:26:33 C 00 09 19.034 +27 08 52.24 X F51
2023-12-29 07:37:22 C 00 09 17.651 +27 09 07.20 X F52
2023-12-30 07:33:23 C 00 06 26.505 +27 43 53.36 X F52