251732 (1998 HG49)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1125043905 ± 1.28e-01
Semi-major axis (a)1.2005415960 AU ± 8.00e-02
Inclination (i)4.19488942° ± 6.55e+00
Long. of Asc. Node (Ω)44.80051510° ± 1.08e+02
Arg. of Perihelion (ω)324.25955106° ± 1.74e+02
Mean Anomaly (M)188.40774973° ± 1.96e+02
Mean Motion (n)0.7492839988°/day ± 7.49e-02
Perihelion dist (q)1.06547540 AU ± 1.69e-01
Aphelion dist (Q)1.33560780 AU ± 1.77e-01
Orbital Period1.31542417 yr ± 1.31e-01
NGA Modelr2
A2-1.31289640e-05 AU/d²
Physical Parameters
H (abs. magnitude)21.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.385″
Uncertainty0
Orbit TypeAmor
MOID0.075093 AU
Observations Used150
Oppositions6
Arc Total1998-2023
First Observation Used1998-04-27
Last Observation Used2023-05-11
Observations (156)
Date Type RA Dec Mag Band Observatory
2006-07-15 15:02:31 C 18 04 28.75 -50 28 40.3 o 474
2006-11-11 02:50:02 C 22 34 15.52 -11 59 32.6 r G96
2006-11-11 02:57:32 C 22 34 16.50 -11 59 19.8 r G96
2006-11-11 03:05:04 C 22 34 17.54 -11 59 06.3 r G96
2006-11-20 02:34:40 C 23 05 11.85 -05 45 07.0 d 291
2006-11-20 02:40:22 C 23 05 12.62 -05 44 57.2 d 291
2006-11-20 02:46:08 C 23 05 13.40 -05 44 48.2 d 291
2006-11-21 02:13:12 C 23 08 32.60 -05 05 19.4 r G96
2006-11-21 02:26:19 C 23 08 34.36 -05 04 57.7 r G96
2006-11-21 02:39:08 C 23 08 36.06 -05 04 36.1 r G96
2006-11-21 02:52:03 C 23 08 37.75 -05 04 14.3 r G96
2010-05-15 14:03:59 C 20 59 37.634 -22 52 36.97 o 568
2010-05-15 14:09:19 C 20 59 38.343 -22 52 36.26 o 568
2010-08-14 10:14:16 C 02 36 58.13 -07 18 06.3 o 291
2010-08-14 10:19:59 C 02 36 59.03 -07 18 02.5 o 291
2010-10-02 11:18:35 C 05 16 41.02 +10 06 57.4 u 448
2010-10-02 11:33:32 C 05 16 42.39 +10 07 12.1 u 448
2010-10-02 11:57:59 C 05 16 44.71 +10 07 37.7 u 448
2010-11-17 09:26:47 C 06 05 49.64 +31 30 12.3 18.8 c 704
2010-11-17 09:45:04 C 06 05 48.61 +31 30 34.2 18.9 c 704
2010-11-17 10:03:30 C 06 05 47.54 +31 30 56.2 19.4 c 704
2010-11-17 10:21:52 C 06 05 46.51 +31 31 19.3 19.1 c 704
2010-11-17 10:40:24 C 06 05 45.44 +31 31 40.9 19.1 c 704
2010-11-18 09:08:02 C 06 04 50.56 +31 59 13.6 18.9 c 704
2010-11-18 09:26:19 C 06 04 49.38 +31 59 35.6 19.1 c 704
2010-11-18 09:44:35 C 06 04 48.34 +31 59 57.6 18.8 c 704
2010-11-18 10:03:14 C 06 04 47.11 +32 00 20.5 19.4 c 704
2010-11-19 09:11:25 C 06 03 44.06 +32 28 20.8 18.6 c 704
2010-11-19 09:11:36 C 06 03 44.22 +32 28 21.5 18.7 c 704
2010-11-19 09:29:49 C 06 03 42.85 +32 28 43.0 19.2 c 704
2010-11-19 09:30:00 C 06 03 42.83 +32 28 43.2 19.1 c 704
2010-11-19 09:48:16 C 06 03 41.62 +32 29 04.9 18.9 c 704
2010-11-19 09:48:28 C 06 03 41.68 +32 29 04.6 19.4 c 704
2010-11-19 10:06:57 C 06 03 40.39 +32 29 26.8 18.6 c 704
2010-11-27 01:47:33 C 05 52 03.29 +35 54 24.3 v 204
2010-11-27 01:57:22 C 05 52 02.40 +35 54 33.9 v 204
2010-11-27 02:05:58 C 05 52 01.62 +35 54 42.5 v 204
2010-11-29 07:59:51 C 05 47 42.23 +36 47 22.3 18.7 c 704
2010-11-29 08:18:29 C 05 47 40.34 +36 47 39.6 18.9 c 704
2010-11-29 08:37:18 C 05 47 38.38 +36 47 57.5 18.8 c 704
2010-11-29 08:56:06 C 05 47 36.46 +36 48 14.2 18.9 c 704
2010-11-29 09:14:50 C 05 47 34.54 +36 48 32.2 18.9 c 704
2010-11-30 08:00:55 C 05 45 39.21 +37 09 19.1 19.2 c 704
2010-11-30 08:19:44 C 05 45 37.23 +37 09 35.7 19.1 c 704
2010-11-30 08:38:35 C 05 45 35.33 +37 09 52.4 18.9 c 704
2010-11-30 08:57:33 C 05 45 33.32 +37 10 08.5 18.8 c 704
2014-12-25 11:44:14 C 10 17 18.427 +25 17 00.37 L F51
2014-12-25 12:01:58 C 10 17 18.647 +25 17 09.76 L F51
2014-12-27 11:07:44 C 10 18 02.912 +25 40 31.46 L F51
2014-12-27 11:25:27 C 10 18 03.025 +25 40 40.91 L F51