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
2009-10-13 02:35:30 C 19 38 22.40 -27 04 16.6 19.3 c 704
2009-10-13 02:54:49 C 19 38 21.41 -27 04 01.6 19.3 c 704
2009-10-13 03:14:04 C 19 38 20.28 -27 03 45.1 19.0 c 704
2009-11-09 04:46:02 C 19 15 47.462 -17 01 41.07 V T12
2010-01-18 15:32:18 C 15 59 34.004 -18 51 16.00 o 568
2010-02-20 15:56:52 C 16 09 24.067 -30 29 48.92 t 568
2010-02-21 15:43:20 C 16 09 10.402 -30 47 25.65 t 568
2010-02-21 15:47:24 C 16 09 10.347 -30 47 28.66 t 568
2010-02-21 15:51:23 C 16 09 10.291 -30 47 31.62 t 568
2010-02-21 15:55:32 C 16 09 10.238 -30 47 34.68 t 568
2010-02-21 15:59:24 C 16 09 10.187 -30 47 37.55 t 568
2010-02-24 04:39:09 S 16 08 21.578 -31 31 44.04 L C51
2010-02-24 07:49:40 S 16 08 18.475 -31 34 01.49 L C51
2010-02-24 11:00:11 S 16 08 15.32 -31 36 18.4 L C51
2010-02-24 14:10:42 S 16 08 12.12 -31 38 35.5 L C51
2010-02-24 15:46:03 S 16 08 10.47 -31 39 43.9 L C51
2010-02-24 17:21:24 S 16 08 08.80 -31 40 51.9 L C51
2010-02-24 18:56:35 S 16 08 07.17 -31 42 00.5 L C51
2010-02-24 22:07:06 S 16 08 03.83 -31 44 16.8 L C51
2010-02-24 22:07:17 S 16 08 03.83 -31 44 17.0 L C51
2010-02-25 01:17:48 S 16 08 00.39 -31 46 33.0 L C51
2018-06-24 10:30:57 C 00 43 39.19 -04 41 13.4 o 291
2018-06-24 10:37:26 C 00 43 39.82 -04 41 08.3 o 291
2018-06-24 10:43:53 C 00 43 40.48 -04 41 03.5 o 291
2018-07-22 09:39:05 C 02 12 13.24 +07 25 53.4 o 691
2018-07-22 09:52:39 C 02 12 15.71 +07 26 13.6 o 691
2018-07-22 10:06:33 C 02 12 18.18 +07 26 34.5 o 691
2022-08-01 10:14:45 C 21 04 12.657 -37 28 35.24 U F52
2022-08-01 10:29:25 C 21 04 11.581 -37 28 38.65 U F52
2022-08-01 10:44:00 C 21 04 10.524 -37 28 42.21 U F52
2023-04-02 20:23:34 C 05 42 44.398 +20 36 49.82 V Z80
2023-04-02 20:32:39 C 05 42 50.453 +20 36 25.60 V Z80
2023-04-02 20:41:30 C 05 42 56.407 +20 36 01.66 V Z80
2023-04-03 20:10:51 C 05 58 41.57 +19 32 24.4 q J69
2023-04-03 20:18:52 C 05 58 46.84 +19 32 02.6 q J69
2023-04-03 20:26:52 C 05 58 52.17 +19 31 39.0 q J69
2023-04-04 19:47:01 C 06 14 11.77 +18 23 48.8 V M14
2023-04-04 20:05:28 C 06 14 23.66 +18 22 53.5 V M14
2023-04-08 00:36:49 C 07 01 15.530 +14 21 57.53 V W68
2023-04-08 00:41:27 C 07 01 18.139 +14 21 41.98 V W68
2023-04-08 00:50:39 C 07 01 23.338 +14 21 12.10 V W68
2023-04-08 01:18:41 C 07 01 39.197 +14 19 40.84 V W68
2023-04-10 01:23:50 C 07 27 44.54 +11 44 48.8 V W46
2023-04-10 01:34:11 C 07 27 49.79 +11 44 15.7 V W46
2023-04-10 01:43:00 C 07 27 54.26 +11 43 48.1 V W46
2023-04-11 00:51:45 C 07 39 27.833 +10 32 06.94 V W68
2023-04-11 01:02:40 C 07 39 33.034 +10 31 32.95 V W68
2023-04-11 01:07:16 C 07 39 35.237 +10 31 18.84 V W68
2023-04-11 01:29:48 C 07 39 46.058 +10 30 09.79 V W68
2023-04-11 01:44:20 C 07 39 53.026 +10 29 24.25 V W68