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
1998-04-29 09:45:31 c 15 29 45.50 -03 24 07.1 i 691
1998-04-29 10:29:59 c 15 29 39.18 -03 25 34.0 i 691
1998-04-29 11:15:15 c 15 29 32.87 -03 27 01.1 i 691
1998-04-30 08:32:04 C 15 26 50.03 -04 07 32.7 i 691
1998-04-30 08:40:04 C 15 26 48.92 -04 07 47.2 i 691
1998-04-30 08:48:34 C 15 26 47.74 -04 08 03.0 i 691
1998-05-01 10:02:59 c 15 23 37.08 -04 54 33.9 i 691
1998-05-01 10:11:04 c 15 23 35.98 -04 54 49.2 i 691
1998-05-01 10:19:46 c 15 23 34.86 -04 55 04.0 i 691
1998-05-02 10:25:35 C 15 20 39.18 -05 37 56.2 a 696
1998-05-02 10:27:10 C 15 20 39.01 -05 37 59.2 a 696
1998-05-02 10:28:45 C 15 20 38.77 -05 38 01.9 a 696
1998-05-04 09:20:00 C 15 15 13.85 -06 57 11.0 a 696
1998-05-04 09:22:13 C 15 15 13.53 -06 57 14.1 a 696
1998-05-04 09:24:21 C 15 15 13.32 -06 57 17.7 a 696
1998-05-04 10:43:30 c 15 15 03.79 -06 59 25.5 i 691
1998-05-04 10:48:59 c 15 15 03.09 -06 59 35.0 i 691
1998-05-04 10:54:27 c 15 15 02.42 -06 59 42.3 i 691
2010-11-02 06:38:18 C 02 40 32.73 +05 16 40.4 r G96
2010-11-02 06:48:42 C 02 40 31.65 +05 16 42.2 r G96
2010-11-02 06:59:13 C 02 40 30.64 +05 16 43.2 r G96
2010-11-02 07:09:38 C 02 40 29.56 +05 16 44.8 r G96
2010-11-02 10:22:35 C 02 40 10.24 +05 17 09.9 o H01
2010-11-02 10:32:19 C 02 40 09.30 +05 17 11.4 o H01
2010-11-02 10:51:15 C 02 40 07.43 +05 17 13.8 o H01
2010-11-02 11:04:05 C 02 40 06.22 +05 17 16.7 r G96
2010-11-02 11:06:04 C 02 40 05.96 +05 17 16.4 r G96
2010-11-03 01:17:26 C 02 38 45.81 +05 19 14.0 v 204
2010-11-03 01:47:35 C 02 38 42.78 +05 19 18.5 v 204
2010-11-03 07:52:49 C 02 38 07.53 +05 20 16.3 o H21
2010-11-03 08:02:16 C 02 38 06.59 +05 20 18.0 o H21
2010-11-03 08:12:08 C 02 38 05.59 +05 20 19.5 o H21
2010-11-03 09:59:39 C 02 37 54.91 +05 20 38.1 o H01
2010-11-03 10:09:56 C 02 37 53.86 +05 20 39.5 o H01
2010-11-03 10:24:03 C 02 37 52.43 +05 20 41.5 o H01
2010-11-03 10:43:54 C 02 37 50.42 +05 20 44.5 o H01
2010-11-05 04:55:01 C 02 33 39.43 +05 27 56.8 o 291
2010-11-05 05:00:25 C 02 33 38.86 +05 27 57.7 o 291
2010-11-05 05:05:46 C 02 33 38.28 +05 27 58.8 o 291
2010-11-05 06:18:12 C 02 33 30.38 +05 28 12.2 o 291
2010-11-05 06:23:37 C 02 33 29.77 +05 28 13.4 o 291
2010-11-05 06:29:18 C 02 33 29.15 +05 28 14.7 o 291
2010-11-05 06:36:45 C 02 33 28.32 +05 28 15.8 o 291
2010-11-05 06:42:14 C 02 33 27.71 +05 28 16.8 o 291
2010-11-05 06:48:42 C 02 33 26.97 +05 28 18.2 o 291
2010-11-08 06:29:58 C 02 25 45.51 +05 43 42.7 r G96
2010-11-08 06:38:19 C 02 25 44.54 +05 43 44.6 r G96
2010-11-08 06:46:35 C 02 25 43.57 +05 43 46.8 r G96
2010-11-08 06:54:53 C 02 25 42.56 +05 43 48.6 r G96
2010-11-27 05:10:45 C 01 29 01.50 +09 13 13.4 r G96