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
2012-11-29 02:58:59 C 01 01 00.35 -14 45 15.8 u H21
2012-11-29 03:10:39 C 01 01 00.84 -14 45 48.1 u H21
2012-11-29 03:22:40 C 01 01 01.31 -14 46 21.1 u H21
2012-12-06 04:17:02 C 01 10 34.74 -21 46 58.4 q 448
2012-12-06 04:30:35 C 01 10 35.58 -21 47 28.4 q 448
2012-12-06 04:43:39 C 01 10 36.23 -21 47 57.9 q 448
2013-01-07 00:56:45 C 02 20 15.06 -39 02 37.0 u 807
2013-01-07 01:02:32 C 02 20 15.70 -39 02 41.1 u 807
2013-01-07 01:08:19 C 02 20 16.30 -39 02 45.2 u 807
2013-01-07 01:14:07 C 02 20 16.88 -39 02 49.4 u 807
2013-02-08 00:36:20 C 03 57 59.13 -43 51 58.5 u 807
2013-02-08 00:41:34 C 03 57 59.85 -43 51 58.6 u 807
2013-02-08 00:46:48 C 03 58 00.55 -43 51 59.1 u 807
2013-02-08 00:52:02 C 03 58 01.30 -43 51 59.2 u 807
2013-02-08 00:57:15 C 03 58 02.03 -43 51 59.2 u 807
2013-03-13 23:54:53 C 06 17 57.94 -38 38 52.1 u 807
2013-03-13 23:58:26 C 06 17 58.62 -38 38 49.0 u 807
2013-03-14 00:02:00 C 06 17 59.30 -38 38 45.3 u 807
2013-03-14 00:06:03 C 06 18 00.07 -38 38 41.6 u 807
2013-03-14 00:11:54 C 06 18 01.18 -38 38 36.1 u 807
2015-08-11 02:54:58 C 17 27 28.89 +09 04 49.2 u H21
2015-08-11 03:43:42 C 17 27 28.80 +09 04 28.4 u H21
2015-08-11 04:03:42 C 17 27 28.78 +09 04 20.2 u H21
2017-07-15 07:55:33 C 22 35 12.32 +29 22 56.3 u H21
2017-07-15 08:19:11 C 22 35 12.16 +29 23 12.7 u H21
2017-07-15 08:47:13 C 22 35 12.01 +29 23 32.3 u H21
2017-07-18 07:22:55 C 22 34 43.72 +30 11 41.7 u H21
2017-07-18 07:42:47 C 22 34 43.53 +30 11 55.1 u H21
2017-07-18 08:00:01 C 22 34 43.32 +30 12 06.7 u H21
2017-07-24 06:57:02 C 22 32 39.43 +31 42 54.5 u H21
2017-07-24 07:19:57 C 22 32 38.92 +31 43 07.5 u H21
2017-08-12 06:23:48 C 22 15 51.08 +34 58 59.1 u H21
2017-08-12 06:50:26 C 22 15 49.55 +34 59 05.0 u H21
2017-08-12 07:05:21 C 22 15 48.72 +34 59 08.2 u H21
2017-10-22 02:32:09 C 21 18 11.97 +13 34 14.7 U G96
2017-10-22 02:39:37 C 21 18 12.20 +13 34 06.9 U G96
2017-10-22 02:47:03 C 21 18 12.45 +13 33 58.3 U G96
2020-05-14 10:25:15 C 17 10 55.47 -05 27 21.9 V G96
2020-05-14 10:35:11 C 17 10 54.80 -05 27 09.9 V G96
2020-05-14 10:41:26 C 17 10 54.34 -05 27 03.2 V G96
2020-05-14 10:47:41 C 17 10 53.91 -05 26 56.1 V G96
2020-05-21 10:49:31 C 16 58 53.635 -02 22 19.56 U F51
2020-05-21 11:07:53 C 16 58 52.199 -02 22 00.56 U F51
2020-05-21 11:44:39 C 16 58 49.342 -02 21 22.28 U F51
2020-05-23 08:55:03 C 16 55 27.33 -01 35 19.4 V G96
2020-05-23 09:02:37 C 16 55 26.73 -01 35 11.8 V G96
2020-05-23 09:10:10 C 16 55 26.15 -01 35 04.1 V G96
2020-05-23 09:17:43 C 16 55 25.55 -01 34 56.6 V G96
2020-05-25 10:01:10 C 16 51 46.880 -00 47 16.63 U F52
2020-05-25 10:02:06 C 16 51 46.829 -00 47 15.87 U F52