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
2014-12-27 11:43:13 C 10 18 03.121 +25 40 50.82 L F51
2015-01-20 06:55:05 C 09 59 31.71 +31 43 41.1 q 703
2015-01-20 07:02:23 C 09 59 31.13 +31 43 46.7 q 703
2015-01-20 07:09:42 C 09 59 30.62 +31 43 52.0 q 703
2015-01-20 07:17:01 C 09 59 30.04 +31 43 55.8 q 703
2015-02-17 07:58:26 C 08 56 09.600 +34 41 28.40 L F51
2015-02-17 08:16:52 C 08 56 08.023 +34 41 25.58 L F51
2015-02-17 08:35:21 C 08 56 06.442 +34 41 22.59 L F51
2015-02-17 08:53:59 C 08 56 04.856 +34 41 19.44 L F51
2015-03-24 08:59:52 C 08 41 40.187 +28 25 54.63 L F51
2015-03-24 09:36:07 C 08 41 41.214 +28 25 33.32 L F51
2015-03-24 09:54:11 C 08 41 41.728 +28 25 22.87 L F51
2019-02-05 11:45:57 C 12 21 12.495 +12 25 12.51 U F51
2019-02-05 11:46:52 C 12 21 12.492 +12 25 13.02 U F51
2019-02-05 12:03:48 C 12 21 12.174 +12 25 18.80 U F51
2019-02-05 12:04:44 C 12 21 12.154 +12 25 19.24 U F51
2019-02-05 12:21:44 C 12 21 11.867 +12 25 25.17 U F51
2019-02-05 12:22:40 C 12 21 11.850 +12 25 25.48 U F51
2019-02-05 12:39:44 C 12 21 11.524 +12 25 31.66 U F51
2019-02-05 12:40:41 C 12 21 11.506 +12 25 31.96 U F51
2019-02-26 12:17:33 C 11 57 48.03 +16 07 33.1 V G96
2019-02-26 12:27:46 C 11 57 47.19 +16 07 37.6 V G96
2019-02-26 12:38:01 C 11 57 46.35 +16 07 42.4 V G96
2019-02-26 12:51:52 C 11 57 45.30 +16 07 48.0 V G96
2019-04-03 05:26:35 C 10 48 41.55 +17 51 40.9 V G96
2019-04-03 05:34:03 C 10 48 41.09 +17 51 39.3 V G96
2019-04-03 05:41:32 C 10 48 40.67 +17 51 36.9 V G96
2023-03-14 11:05:40 C 13 58 06.506 -01 55 58.30 V G96
2023-03-14 11:16:25 C 13 58 06.128 -01 55 56.28 V G96
2023-03-14 11:23:46 C 13 58 05.830 -01 55 54.77 V G96
2023-03-14 11:31:08 C 13 58 05.567 -01 55 54.55 V G96
2023-03-28 10:00:34 C 13 39 32.069 -00 50 18.02 U F51
2023-03-28 10:17:24 C 13 39 30.701 -00 50 14.32 U F51
2023-03-28 10:34:17 C 13 39 29.310 -00 50 10.67 U F51
2023-03-28 10:51:07 C 13 39 27.920 -00 50 06.92 U F51
2023-03-29 18:26:05 C 13 37 01.19 -00 43 14.1 V D29
2023-03-29 18:46:27 C 13 36 59.34 -00 43 11.0 V D29
2023-04-14 09:46:08 C 13 03 28.457 +00 24 55.95 U F52
2023-04-14 10:03:56 C 13 03 26.678 +00 24 57.91 U F52
2023-04-14 10:21:42 C 13 03 24.896 +00 24 59.90 U F52
2023-04-14 10:39:30 C 13 03 23.126 +00 25 01.91 U F52
2023-04-14 17:15:27 C 13 02 46.99 +00 25 37.4 V N87
2023-04-14 17:36:02 C 13 02 44.97 +00 25 39.9 V N87
2023-04-14 17:56:41 C 13 02 42.92 +00 25 41.7 V N87
2023-04-17 08:34:08 C 12 56 59.968 +00 31 34.82 V G96
2023-04-17 08:42:15 C 12 56 59.190 +00 31 35.33 V G96
2023-04-17 08:50:21 C 12 56 58.427 +00 31 36.01 V G96
2023-04-17 08:58:27 C 12 56 57.656 +00 31 36.23 V G96
2023-04-29 03:48:53 C 12 34 49.804 +00 27 40.32 V G96
2023-04-29 03:56:22 C 12 34 49.228 +00 27 39.78 V G96