357005 (1999 HA2)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7026793255 ± 3.56e-08
Semi-major axis (a)2.7799407880 AU ± 1.52e-08
Inclination (i)15.22171006° ± 7.02e-06
Long. of Asc. Node (Ω)147.18461510° ± 4.48e-05
Arg. of Perihelion (ω)344.48366836° ± 4.28e-05
Mean Anomaly (M)269.01634817° ± 8.46e-06
Mean Motion (n)0.2126468519°/day ± 1.75e-09
Perihelion dist (q)0.82653387 AU ± 9.92e-08
Aphelion dist (Q)4.73334771 AU ± 1.02e-07
Orbital Period4.63503821 yr ± 3.81e-08
Physical Parameters
H (abs. magnitude)17.99
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.519″
Uncertainty0
Orbit TypeApollo
MOID0.128872 AU
Observations Used264
Oppositions11
Arc Total1999-2013
First Observation Used1999-04-20
Last Observation Used2013-06-18
Observations (266)
Date Type RA Dec Mag Band Observatory
1999-04-20 08:43:02 C 15 44 48.64 +31 59 31.1 18.3 a 704
1999-04-20 09:03:31 C 15 44 46.34 +31 59 15.2 18.3 a 704
1999-04-20 09:24:04 C 15 44 43.94 +31 58 58.2 18.1 a 704
1999-04-20 09:44:34 C 15 44 41.73 +31 58 43.7 18.5 a 704
1999-04-20 10:05:13 C 15 44 39.30 +31 58 25.7 18.5 a 704
1999-04-22 05:23:02 C 15 40 11.25 +31 23 20.9 z 859
1999-04-22 05:31:29 C 15 40 10.32 +31 23 13.7 z 859
1999-04-22 05:38:04 C 15 40 09.66 +31 23 09.9 z 859
1999-04-22 07:21:53 C 15 40 00.21 +31 21 25.2 18.4 a 704
1999-04-22 07:21:58 C 15 40 00.10 +31 21 24.8 18.1 a 704
1999-04-22 07:22:03 C 15 40 00.14 +31 21 24.6 18.1 a 704
1999-04-22 07:38:16 C 15 39 58.38 +31 21 11.9 18.7 a 704
1999-04-22 07:38:21 C 15 39 58.38 +31 21 11.5 18.2 a 704
1999-04-22 07:38:27 C 15 39 58.38 +31 21 11.3 17.7 a 704
1999-04-22 07:54:37 C 15 39 56.76 +31 20 58.6 18.5 a 704
1999-04-22 07:54:43 C 15 39 56.67 +31 20 58.5 18.4 a 704
1999-04-22 07:54:48 C 15 39 56.66 +31 20 58.1 18.4 a 704
1999-04-22 08:05:40 C 15 39 55.77 +31 20 43.5 658
1999-04-22 08:08:58 C 15 39 55.37 +31 20 39.9 658
1999-04-22 08:10:58 C 15 39 55.00 +31 20 45.4 18.6 a 704
1999-04-22 08:11:03 C 15 39 55.01 +31 20 45.3 18.7 a 704
1999-04-22 08:11:08 C 15 39 54.86 +31 20 44.8 18.5 a 704
1999-04-22 08:14:02 C 15 39 54.88 +31 20 36.5 658
1999-04-22 08:20:55 C 15 39 53.84 +31 20 38.1 z 711
1999-04-22 08:27:16 C 15 39 53.22 +31 20 31.2 18.6 a 704
1999-04-22 08:27:22 C 15 39 53.32 +31 20 32.7 18.7 a 704
1999-04-22 08:27:27 C 15 39 53.19 +31 20 31.5 18.7 a 704
1999-04-22 08:27:51 C 15 39 53.11 +31 20 32.3 z 711
1999-04-22 08:36:24 C 15 39 52.19 +31 20 25.3 z 711
1999-04-22 19:16:25 C 15 38 49.54 +31 11 22.2 557
1999-04-22 19:18:46 C 15 38 49.29 +31 11 20.2 557
1999-04-22 19:25:13 C 15 38 48.65 +31 11 15.1 557
1999-04-22 19:29:55 C 15 38 48.19 +31 11 11.2 557
1999-04-23 00:28:54 C 15 38 17.69 +31 07 08.7 d 046
1999-04-23 00:31:07 C 15 38 17.52 +31 07 06.8 d 046
1999-04-23 00:33:12 C 15 38 17.32 +31 07 05.1 d 046
1999-04-23 00:35:09 C 15 38 17.05 +31 07 03.4 d 046
1999-04-23 06:47:00 C 15 37 41.46 +31 01 51.1 658
1999-04-23 06:53:21 C 15 37 40.82 +31 01 46.0 658
1999-04-23 06:58:02 C 15 37 40.34 +31 01 41.8 658
1999-04-23 07:09:47 C 15 37 38.98 +31 01 38.1 18.7 a 704
1999-04-23 07:09:52 C 15 37 39.05 +31 01 39.3 18.3 a 704
1999-04-23 07:23:34 C 15 37 37.56 +31 01 27.1 18.2 a 704
1999-04-23 07:23:39 C 15 37 37.63 +31 01 26.7 18.3 a 704
1999-04-23 07:37:37 C 15 37 36.14 +31 01 15.5 18.6 a 704
1999-04-23 07:37:43 C 15 37 36.21 +31 01 17.0 18.6 a 704
1999-04-23 07:51:42 C 15 37 34.72 +31 01 04.9 18.6 a 704
1999-04-23 07:51:46 C 15 37 34.76 +31 01 03.0 18.8 a 704
1999-04-23 08:05:38 C 15 37 33.30 +31 00 52.2 18.9 a 704
1999-04-23 08:05:42 C 15 37 33.25 +31 00 50.7 19.6 a 704