498550 (2008 HV4)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2779242183 ± 1.86e-08
Semi-major axis (a)1.4263294280 AU ± 1.43e-09
Inclination (i)20.81526152° ± 6.72e-06
Long. of Asc. Node (Ω)223.98406026° ± 4.77e-06
Arg. of Perihelion (ω)249.53465469° ± 1.13e-05
Mean Anomaly (M)189.11226184° ± 9.33e-06
Mean Motion (n)0.5786054396°/day ± 8.67e-10
Perihelion dist (q)1.02991794 AU ± 2.66e-08
Aphelion dist (Q)1.82274092 AU ± 2.67e-08
Orbital Period1.70345146 yr ± 2.55e-09
Physical Parameters
H (abs. magnitude)19.62
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.351″
Uncertainty0
Orbit TypeAmor
MOID0.173810 AU
Observations Used346
Oppositions7
Arc Total2008-2025
First Observation Used2008-04-30
Last Observation Used2025-06-26
Observations (354)
Date Type RA Dec Mag Band Observatory
2008-04-30 08:06:36 C 15 16 39.93 -18 32 33.9 r G96
2008-04-30 08:13:54 C 15 16 39.39 -18 32 20.4 r G96
2008-04-30 08:21:03 C 15 16 38.82 -18 32 07.2 r G96
2008-04-30 08:28:12 C 15 16 38.24 -18 31 54.0 r G96
2008-04-30 09:01:35 C 15 16 35.34 -18 30 51.0 r 850
2008-04-30 09:17:32 C 15 16 34.20 -18 30 23.3 o H55
2008-04-30 09:21:56 C 15 16 33.66 -18 30 13.4 r 850
2008-04-30 09:22:23 C 15 16 33.79 -18 30 14.1 o H55
2008-04-30 09:31:45 C 15 16 33.10 -18 29 58.0 o H55
2008-04-30 09:39:08 C 15 16 32.80 -18 29 42.5 r G96
2008-04-30 09:42:22 C 15 16 32.55 -18 29 36.4 r G96
2008-04-30 09:48:50 C 15 16 32.05 -18 29 24.6 r G96
2008-04-30 23:18:15 C 15 15 34.64 -18 04 34.8 r 176
2008-04-30 23:38:49 C 15 15 33.01 -18 03 56.8 r 176
2008-04-30 23:43:17 C 15 15 32.69 -18 03 48.1 r 176
2008-04-30 23:45:33 C 15 15 32.44 -18 03 43.5 r 176
2008-04-30 23:47:47 C 15 15 32.32 -18 03 39.2 r 176
2008-05-01 06:10:59 C 15 15 04.67 -17 51 54.2 r 850
2008-05-01 06:51:01 C 15 15 01.66 -17 50 41.8 r 850
2008-05-01 07:36:51 C 15 14 58.59 -17 49 16.5 r G96
2008-05-01 07:37:37 C 15 14 58.02 -17 49 14.9 r 850
2008-05-01 07:37:37 C 15 14 58.52 -17 49 14.5 r G96
2008-05-01 07:38:23 C 15 14 58.45 -17 49 13.6 r G96
2008-05-01 07:39:10 C 15 14 58.38 -17 49 12.3 r G96
2008-05-01 08:49:02 C 15 14 53.02 -17 47 04.1 c 854
2008-05-03 14:57:50 C 15 11 02.23 -16 08 10.4 o 474
2008-05-03 15:05:30 C 15 11 01.62 -16 07 56.7 o 474
2008-05-03 15:09:19 C 15 11 01.41 -16 07 50.0 o 474
2008-05-06 05:04:42 C 15 06 46.15 -14 18 33.7 c H51
2008-05-06 05:07:01 C 15 06 45.95 -14 18 28.7 c H51
2008-05-06 05:09:19 C 15 06 45.82 -14 18 24.2 c H51
2008-05-06 06:18:57 C 15 06 40.81 -14 16 23.5 o H55
2008-05-06 06:23:31 C 15 06 40.48 -14 16 15.4 o H55
2008-05-06 06:28:05 C 15 06 40.16 -14 16 07.7 o H55
2008-05-06 07:13:19 C 15 06 37.23 -14 14 47.0 18.8 c 704
2008-05-06 07:28:32 C 15 06 36.11 -14 14 20.8 19.3 c 704
2008-05-06 07:43:44 C 15 06 35.10 -14 13 54.8 19.4 c 704
2008-05-06 07:55:42 C 15 06 34.17 -14 13 33.8 r 448
2008-05-06 07:58:55 C 15 06 33.93 -14 13 28.8 18.8 c 704
2008-05-06 08:02:54 C 15 06 33.65 -14 13 21.0 r 448
2008-05-06 08:10:07 C 15 06 33.12 -14 13 08.6 r 448
2008-05-06 11:29:50 C 15 06 19.51 -14 07 06.9 r F85
2008-05-06 11:47:41 C 15 06 18.22 -14 06 35.7 r F85
2008-05-08 22:09:28 C 15 02 29.18 -12 27 47.2 o 046
2008-05-08 22:57:35 C 15 02 25.96 -12 26 25.3 o 246
2008-05-08 22:58:48 C 15 02 25.84 -12 26 23.2 o 246
2008-05-08 23:00:21 C 15 02 25.73 -12 26 20.6 o 246
2008-05-08 23:02:19 C 15 02 25.62 -12 26 17.4 o 246
2008-05-08 23:03:33 C 15 02 25.57 -12 26 15.6 o 246
2008-05-08 23:04:45 C 15 02 25.45 -12 26 13.8 o 246