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
2010-11-27 05:20:55 C 01 29 00.13 +09 13 20.1 r G96
2010-11-27 05:31:06 C 01 28 58.72 +09 13 27.5 r G96
2010-11-27 05:41:16 C 01 28 57.39 +09 13 34.3 r G96
2010-12-08 03:59:55 C 00 58 16.57 +12 46 14.6 r G96
2010-12-08 04:07:30 C 00 58 15.70 +12 46 21.4 r G96
2010-12-08 04:15:01 C 00 58 14.84 +12 46 28.4 r G96
2010-12-08 04:22:36 C 00 58 13.94 +12 46 35.6 r G96
2011-01-08 03:04:58 C 23 59 14.86 +27 55 07.2 o 291
2011-01-08 03:11:38 C 23 59 14.29 +27 55 16.9 o 291
2011-01-08 03:20:38 C 23 59 13.57 +27 55 29.4 o 291
2011-01-09 03:24:04 C 23 57 25.81 +28 31 35.5 o 291
2011-01-09 03:30:29 C 23 57 25.26 +28 31 44.6 o 291
2011-01-09 03:36:50 C 23 57 24.73 +28 31 53.6 o 291
2011-03-27 11:30:40 C 17 48 51.65 +19 30 21.7 o 291
2011-03-27 11:36:22 C 17 48 50.87 +19 30 09.8 o 291
2011-04-22 10:27:40 C 16 24 34.45 -02 36 21.4 o 691
2011-04-22 10:53:12 C 16 24 30.48 -02 37 08.8 o 691
2011-04-22 11:18:47 C 16 24 26.44 -02 37 57.5 o 691
2011-04-26 10:32:21 C 16 11 00.26 -05 28 38.9 o 691
2011-04-26 10:58:20 C 16 10 56.35 -05 29 23.0 o 691
2011-04-26 11:24:14 C 16 10 52.48 -05 30 06.9 o 691
2011-04-28 07:57:28 C 16 04 43.52 -06 44 57.1 o 691
2011-04-28 08:23:00 C 16 04 39.74 -06 45 39.2 o 691
2011-04-28 08:48:29 C 16 04 35.87 -06 46 21.2 o 691
2011-04-28 12:31:36 C 16 04 04.642 -06 52 18.57 L F51
2011-04-28 12:47:27 C 16 04 02.268 -06 52 44.35 L F51
2011-04-28 13:04:57 C 16 03 59.633 -06 53 12.95 L F51
2011-04-28 13:20:00 C 16 03 57.395 -06 53 37.31 L F51
2011-05-01 07:05:56 C 15 55 05.38 -08 37 16.2 o 691
2011-05-01 07:31:28 C 15 55 01.66 -08 37 56.1 o 691
2011-05-01 07:56:59 C 15 54 57.92 -08 38 34.9 o 691
2011-05-06 06:18:19 C 15 39 54.00 -11 24 58.5 o 691
2011-05-06 06:43:53 C 15 39 50.64 -11 25 32.1 o 691
2011-05-06 07:09:28 C 15 39 47.28 -11 26 05.7 o 691
2011-05-23 06:19:37 C 15 02 04.38 -17 58 09.6 r G96
2011-05-23 06:31:02 C 15 02 03.58 -17 58 17.2 r G96
2011-05-23 06:42:40 C 15 02 02.79 -17 58 24.9 r G96
2011-05-23 06:54:19 C 15 02 01.86 -17 58 33.8 r G96
2018-09-09 11:24:32 C 00 29 05.053 -14 48 33.96 V T12
2018-09-09 11:37:15 C 00 29 04.230 -14 48 40.55 V T12
2018-10-11 07:20:33 C 23 30 13.523 -18 59 04.61 V T12
2018-10-11 07:36:27 C 23 30 12.321 -18 59 04.99 V T12
2018-10-11 07:53:07 C 23 30 11.074 -18 59 05.68 V T12
2018-11-14 05:55:16 C 23 02 57.420 -15 09 53.51 V T12
2018-11-14 06:09:27 C 23 02 57.467 -15 09 46.21 V T12
2023-10-15 11:09:51 C 03 21 37.981 +06 31 08.41 X F51
2023-10-15 11:28:10 C 03 21 37.514 +06 31 09.14 X F51
2023-10-15 11:46:33 C 03 21 37.040 +06 31 10.15 X F51
2023-10-15 12:05:00 C 03 21 36.550 +06 31 10.72 X F51
2023-11-04 05:21:46 C 02 56 56.13 +07 30 33.1 V 691