523589 (2001 HA4)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7934329763 ± 3.36e-08
Semi-major axis (a)2.6901222291 AU ± 1.33e-09
Inclination (i)17.17764414° ± 1.22e-05
Long. of Asc. Node (Ω)353.95168582° ± 1.68e-05
Arg. of Perihelion (ω)95.72305914° ± 1.57e-05
Mean Anomaly (M)224.25374346° ± 1.71e-06
Mean Motion (n)0.2233851280°/day ± 1.66e-10
Perihelion dist (q)0.55569054 AU ± 9.04e-08
Aphelion dist (Q)4.82455392 AU ± 9.05e-08
Orbital Period4.41222875 yr ± 3.28e-09
Physical Parameters
H (abs. magnitude)17.79
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.348″
Uncertainty0
Orbit TypeApollo
MOID0.024721 AU
Observations Used200
Oppositions17
Arc Total2001-2023
First Observation Used2001-04-16
Last Observation Used2023-05-24
Observations (243)
Date Type RA Dec Mag Band Observatory
2001-04-16 03:11:35 C 08 17 18.97 +10 49 20.8 18.1 c 704
2001-04-16 03:30:28 C 08 17 26.34 +10 48 27.3 18.3 c 704
2001-04-16 03:50:11 C 08 17 34.01 +10 47 32.3 18.4 c 704
2001-04-16 04:08:42 C 08 17 41.18 +10 46 39.5 18.6 c 704
2001-04-16 04:28:59 C 08 17 49.09 +10 45 42.5 18.4 c 704
2001-04-17 03:02:10 C 08 26 27.36 +09 43 28.6 18.1 c 704
2001-04-17 03:21:12 C 08 26 34.31 +09 42 37.1 18.6 c 704
2001-04-17 03:38:15 C 08 26 40.64 +09 41 52.1 926
2001-04-17 03:39:34 C 08 26 41.12 +09 41 48.5 926
2001-04-17 03:40:48 C 08 26 41.61 +09 41 44.3 926
2001-04-17 03:41:47 C 08 26 41.88 +09 41 41.4 18.2 c 704
2001-04-17 04:01:22 C 08 26 49.04 +09 40 48.3 18.2 c 704
2001-04-17 20:47:40 C 08 32 54.75 +08 56 08.3 587
2001-04-17 20:52:09 C 08 32 56.29 +08 55 56.8 587
2001-04-17 21:02:25 C 08 32 59.91 +08 55 28.7 587
2001-04-17 21:05:54 C 08 33 01.15 +08 55 19.5 587
2001-04-17 21:48:10 C 08 33 16.00 +08 53 28.3 046
2001-04-17 21:56:58 C 08 33 19.16 +08 53 06.0 046
2001-04-17 21:57:54 C 08 33 19.51 +08 53 02.1 046
2001-04-17 21:59:23 C 08 33 20.00 +08 52 58.9 046
2001-04-17 22:01:45 C 08 33 20.81 +08 52 52.3 046
2001-04-18 03:08:48 C 08 35 09.51 +08 39 40.8 18.2 c 704
2001-04-18 03:09:13 C 08 35 09.74 +08 39 39.7 17.6 c 704
2001-04-18 03:28:03 C 08 35 16.19 +08 38 51.2 18.2 c 704
2001-04-18 03:29:43 C 08 35 16.75 +08 38 46.5 18.7 c 704
2001-04-18 03:46:52 C 08 35 22.71 +08 38 02.6 18.4 c 704
2001-04-18 03:49:10 C 08 35 23.49 +08 37 56.0 18.4 c 704
2001-04-18 04:05:40 C 08 35 29.20 +08 37 13.7 18.3 c 704
2001-04-18 04:08:12 C 08 35 30.07 +08 37 07.6 18.4 c 704
2001-04-18 04:24:29 C 08 35 35.65 +08 36 24.9 18.6 c 704
2001-04-18 04:28:00 C 08 35 36.89 +08 36 15.3 19.1 c 704
2001-04-18 04:44:28 C 08 35 42.40 +08 35 31.4 649
2001-04-18 04:50:53 C 08 35 44.68 +08 35 14.6 649
2001-04-18 04:55:46 C 08 35 46.35 +08 35 02.1 649
2001-04-18 04:58:46 C 08 35 47.34 +08 34 54.2 649
2001-04-18 21:25:16 C 08 41 24.56 +07 53 10.9 118
2001-04-18 21:26:46 C 08 41 25.00 +07 53 07.1 118
2001-04-18 21:33:59 C 08 41 27.46 +07 52 49.3 118
2001-04-18 21:35:36 C 08 41 27.98 +07 52 44.9 118
2001-04-19 02:55:06 C 08 43 14.54 +07 39 36.8 649
2001-04-19 02:59:05 C 08 43 15.84 +07 39 26.8 649
2001-04-19 03:04:10 C 08 43 17.48 +07 39 14.4 649
2001-04-19 03:05:18 C 08 43 18.05 +07 39 13.5 18.0 c 704
2001-04-19 03:05:55 C 08 43 18.23 +07 39 11.5 18.2 c 704
2001-04-19 03:08:52 C 08 43 19.01 +07 39 02.7 649
2001-04-19 03:24:41 C 08 43 24.39 +07 38 25.9 18.2 c 704
2001-04-19 03:25:30 C 08 43 24.64 +07 38 24.3 18.6 c 704
2001-04-19 03:43:35 C 08 43 30.47 +07 37 38.8 18.1 c 704
2001-04-19 03:44:39 C 08 43 30.83 +07 37 36.6 18.6 c 704
2001-04-22 19:47:40 C 09 09 38.77 +04 19 59.9 587