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
1998-04-27 04:52:16 c 12 35 42.34 +00 46 16.4 i 691
1998-04-27 05:22:35 c 12 35 40.08 +00 46 13.9 i 691
1998-04-27 05:52:28 c 12 35 37.83 +00 46 11.6 i 691
1998-04-28 06:17:05 c 12 34 01.12 +00 43 51.9 i 691
1998-04-28 06:39:03 c 12 33 59.58 +00 43 49.3 i 691
1998-04-30 07:35:03 C 12 30 58.55 +00 37 57.2 a 691
1998-04-30 07:47:59 C 12 30 57.78 +00 37 57.0 a 691
1998-04-30 08:00:48 C 12 30 56.94 +00 37 54.6 a 691
1998-05-03 04:54:13 c 12 27 13.80 +00 27 02.9 i 691
1998-05-03 04:59:42 c 12 27 13.53 +00 27 02.6 i 691
1998-05-03 05:05:24 c 12 27 13.15 +00 27 00.9 i 691
1998-05-03 07:13:11 C 12 27 06.12 +00 26 38.4 a 696
1998-05-03 07:18:46 C 12 27 05.82 +00 26 37.8 a 696
1998-05-03 07:24:21 C 12 27 05.48 +00 26 36.3 a 696
2002-05-09 10:18:19 C 15 11 00.53 -19 11 29.3 o 644
2002-05-09 10:33:27 C 15 10 58.97 -19 11 30.6 o 644
2002-05-09 10:48:44 C 15 10 57.38 -19 11 33.4 o 644
2002-05-10 06:52:05 C 15 09 00.08 -19 15 01.7 d 291
2002-05-10 07:22:16 C 15 08 56.85 -19 15 07.1 d 291
2002-05-10 07:54:07 C 15 08 53.44 -19 15 12.1 d 291
2002-05-10 09:35:21 C 15 08 42.63 -19 15 28.4 d 291
2002-05-10 09:41:54 C 15 08 41.94 -19 15 29.3 d 291
2002-05-10 09:53:29 C 15 08 40.66 -19 15 30.6 d 291
2002-05-11 05:16:22 C 15 06 46.74 -19 18 45.0 291
2002-05-11 05:25:00 C 15 06 45.82 -19 18 46.7 291
2002-05-11 05:33:05 C 15 06 44.96 -19 18 48.0 291
2002-05-11 05:56:10 C 15 06 42.35 -19 18 53.2 19.4 c 704
2002-05-11 06:17:20 C 15 06 40.05 -19 18 57.3 19.6 c 704
2002-05-11 06:38:26 C 15 06 37.86 -19 19 00.7 20.0 c 704
2002-05-11 06:59:29 C 15 06 35.53 -19 19 05.3 19.6 c 704
2002-05-12 06:05:29 C 15 04 16.55 -19 22 46.5 d 291
2002-05-12 06:11:38 C 15 04 15.89 -19 22 47.6 d 291
2002-05-12 06:18:15 C 15 04 15.17 -19 22 48.6 d 291
2002-05-12 22:58:54 C 15 02 33.40 -19 25 29.9 c 246
2002-05-12 23:00:42 C 15 02 33.30 -19 25 30.5 c 246
2002-05-12 23:02:28 C 15 02 33.00 -19 25 30.0 c 246
2002-05-12 23:04:14 C 15 02 32.86 -19 25 30.1 c 246
2002-05-12 23:06:00 C 15 02 32.73 -19 25 31.7 c 246
2002-05-12 23:09:37 C 15 02 32.33 -19 25 32.5 c 246
2002-05-14 07:14:14 C 14 59 16.77 -19 30 18.2 d 291
2002-05-14 07:23:35 C 14 59 15.73 -19 30 19.0 d 291
2002-05-14 07:32:29 C 14 59 14.74 -19 30 20.4 d 291
2002-05-16 10:00:53 C 14 54 06.90 -19 37 26.8 o 608
2002-05-16 10:15:53 C 14 54 05.21 -19 37 29.4 o 608
2002-05-16 10:31:17 C 14 54 03.52 -19 37 31.1 o 608
2002-05-18 09:01:09 C 14 49 21.47 -19 43 45.1 o 644
2002-05-18 09:17:46 C 14 49 19.68 -19 43 47.2 o 644
2002-05-18 09:38:05 C 14 49 17.50 -19 43 49.1 o 644
2006-07-15 14:52:40 C 18 04 29.75 -50 28 36.2 o 474
2006-07-15 14:56:30 C 18 04 29.34 -50 28 37.9 o 474