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
2001-04-22 19:52:14 C 09 09 40.02 +04 19 49.8 587
2001-04-22 19:59:24 C 09 09 41.80 +04 19 36.1 587
2001-04-23 04:30:50 C 09 11 56.90 +04 02 30.4 670
2001-04-23 04:57:19 C 09 12 03.81 +04 01 36.7 670
2001-04-23 20:10:43 C 09 15 58.41 +03 31 45.1 595
2001-04-23 20:16:10 C 09 15 59.80 +03 31 34.0 595
2001-04-26 11:09:03 C 09 30 49.52 +01 38 47.5 360
2001-04-26 11:12:10 C 09 30 50.17 +01 38 41.9 360
2001-04-26 11:15:00 C 09 30 50.78 +01 38 37.8 360
2001-04-26 20:32:27 C 09 32 52.07 +01 23 13.2 118
2001-04-26 20:37:46 C 09 32 53.29 +01 23 03.7 118
2001-04-28 03:46:23 C 09 39 24.44 +00 33 54.3 926
2001-04-28 03:47:13 C 09 39 24.61 +00 33 53.0 926
2001-04-28 03:49:01 C 09 39 24.94 +00 33 49.3 926
2001-04-28 03:50:49 C 09 39 25.28 +00 33 47.4 926
2001-04-29 03:52:25 C 09 44 10.72 -00 01 57.2 926
2001-04-29 03:54:08 C 09 44 11.09 -00 02 00.4 926
2001-04-29 03:56:45 C 09 44 11.60 -00 02 03.8 926
2001-05-12 20:52:09 C 10 33 13.64 -05 52 14.0 046
2001-05-12 21:03:21 C 10 33 14.91 -05 52 22.2 046
2001-05-31 11:08:00 C 11 16 14.27 -10 18 07.9 413
2001-05-31 11:14:34 C 11 16 14.79 -10 18 11.4 413
2001-06-02 10:51:14 C 11 20 06.05 -10 40 10.4 413
2001-07-16 07:16:19 C 12 32 20.77 -17 03 46.0 c 568
2001-07-16 07:21:54 C 12 32 21.11 -17 03 47.7 c 568
2001-07-17 06:37:08 C 12 33 48.69 -17 11 16.5 c 568
2001-07-17 06:42:42 C 12 33 49.04 -17 11 18.3 c 568
2009-06-22 14:26:49 C 22 46 14.529 -25 13 33.89 o 568
2009-06-22 14:36:05 C 22 46 14.638 -25 13 35.07 o 568
2009-07-02 12:56:38 C 22 48 06.291 -25 53 50.29 o 568
2009-07-02 13:00:11 C 22 48 06.296 -25 53 51.02 o 568
2009-07-02 13:03:42 C 22 48 06.289 -25 53 51.75 o 568
2009-07-19 15:45:47 C 22 43 31.12 -27 49 46.8 o 474
2009-07-19 15:53:08 C 22 43 30.92 -27 49 49.5 o 474
2009-07-19 16:00:34 C 22 43 30.71 -27 49 52.0 o 474
2009-07-19 16:08:16 C 22 43 30.50 -27 49 54.6 o 474
2009-07-19 16:16:03 C 22 43 30.28 -27 49 57.5 o 474
2009-07-19 17:03:57 C 22 43 28.95 -27 50 14.8 o 474
2009-07-19 17:08:57 C 22 43 28.83 -27 50 16.8 o 474
2009-07-19 17:13:50 C 22 43 28.72 -27 50 18.6 o 474
2009-08-15 13:32:25 C 22 05 35.24 -32 21 18.4 r E12
2009-08-15 14:02:48 C 22 05 32.27 -32 21 30.9 r E12
2009-09-09 13:50:18 C 20 54 04.62 -34 10 06.9 r E12
2009-09-19 03:20:57 C 20 25 58.51 -33 07 05.2 r I20
2009-09-19 03:27:23 C 20 25 57.76 -33 07 02.0 r I20
2009-09-19 03:37:03 C 20 25 56.65 -33 06 57.5 r I20
2009-10-12 00:14:04 C 19 39 46.26 -27 24 52.2 r I20
2009-10-12 00:21:50 C 19 39 45.82 -27 24 45.9 r I20
2009-10-12 00:27:01 C 19 39 45.53 -27 24 41.6 r I20
2009-10-13 02:16:15 C 19 38 23.49 -27 04 32.7 19.5 c 704