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
2023-04-13 03:03:49 C 08 02 22.614 +08 02 53.66 V 703
2023-04-13 03:12:09 C 08 02 26.117 +08 02 30.05 V 703
2023-04-13 03:20:29 C 08 02 29.648 +08 02 06.40 V 703
2023-04-13 20:39:00 C 08 09 43.48 +07 13 41.7 M32
2023-04-13 20:39:17 C 08 09 43.56 +07 13 41.7 M32
2023-04-13 20:39:50 C 08 09 43.89 +07 13 40.0 M32
2023-04-13 20:40:07 C 08 09 43.99 +07 13 39.0 M32
2023-04-13 20:42:55 C 08 09 45.12 +07 13 31.0 M32
2023-04-13 20:45:10 C 08 09 46.02 +07 13 25.9 M32
2023-04-13 20:45:27 C 08 09 46.12 +07 13 23.5 M32
2023-04-14 00:58:25 C 08 11 29.314 +07 02 27.53 V W68
2023-04-14 01:03:01 C 08 11 31.135 +07 02 14.89 V W68
2023-04-14 01:13:36 C 08 11 35.371 +07 01 46.09 V W68
2023-04-14 01:29:25 C 08 11 41.633 +07 01 02.71 V W68
2023-04-14 01:32:43 B 08 11 43.29 +07 00 20.8 V H89
2023-04-14 02:54:59 C 08 12 16.632 +06 56 44.66 V 703
2023-04-14 03:03:14 C 08 12 19.847 +06 56 22.24 V 703
2023-04-14 03:11:30 C 08 12 23.137 +06 55 59.52 V 703
2023-04-14 03:18:19 B 08 12 25.34 +06 55 35.2 V H89
2023-04-15 19:18:17 C 08 27 41.832 +05 12 25.99 V M22
2023-04-15 19:23:50 C 08 27 43.817 +05 12 12.31 V M22
2023-04-15 19:31:52 C 08 27 46.687 +05 11 52.15 V M22
2023-04-15 19:46:05 C 08 27 51.782 +05 11 16.87 V M22
2023-04-17 01:06:34 C 08 38 05.626 +04 01 03.18 V W68
2023-04-17 01:23:21 C 08 38 11.220 +04 00 24.59 V W68
2023-04-17 01:28:37 C 08 38 12.953 +04 00 11.84 V W68
2023-04-17 01:39:38 C 08 38 16.560 +03 59 46.57 V W68
2023-04-17 04:01:18 C 08 39 04.021 +03 53 56.36 V G96
2023-04-17 04:09:26 C 08 39 06.685 +03 53 37.68 V G96
2023-04-17 04:17:34 C 08 39 09.342 +03 53 19.10 V G96
2023-04-17 04:25:42 C 08 39 12.013 +03 53 00.42 V G96
2023-04-20 01:24:53 C 09 00 16.903 +01 27 59.72 V W68
2023-04-20 01:39:22 C 09 00 20.858 +01 27 31.64 V W68
2023-04-20 01:55:13 C 09 00 25.272 +01 27 01.12 V W68
2023-04-23 01:17:47 C 09 18 48.886 -00 38 57.55 V W68
2023-04-23 01:18:26 C 09 18 49.068 -00 38 59.46 V W68
2023-04-23 01:22:23 C 09 18 49.970 -00 39 04.07 V W68
2023-04-23 01:23:42 C 09 18 50.316 -00 39 07.13 V W68
2023-04-23 01:33:00 C 09 18 52.411 -00 39 23.36 V W68
2023-04-23 01:34:19 C 09 18 52.788 -00 39 24.98 V W68
2023-04-23 01:47:21 C 09 18 55.812 -00 39 45.22 V W68
2023-04-23 01:48:39 C 09 18 56.119 -00 39 47.12 V W68
2023-04-24 04:08:35 C 09 24 59.717 -01 21 07.74 V 703
2023-04-24 04:16:45 C 09 25 01.549 -01 21 19.98 V 703
2023-04-24 04:24:55 C 09 25 03.356 -01 21 32.51 V 703
2023-04-24 04:33:05 C 09 25 05.102 -01 21 44.71 V 703
2023-04-25 04:33:33 C 09 30 18.767 -01 56 50.60 V 703
2023-04-25 04:40:53 C 09 30 20.243 -01 57 01.48 V 703
2023-04-25 04:48:11 C 09 30 21.791 -01 57 11.63 V 703
2023-04-25 04:55:30 C 09 30 23.332 -01 57 21.92 V 703