523815 (2009 HW44)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5921917799 ± 8.83e-08
Semi-major axis (a)2.6852148159 AU ± 8.18e-08
Inclination (i)41.10511559° ± 2.85e-05
Long. of Asc. Node (Ω)37.82675349° ± 9.13e-06
Arg. of Perihelion (ω)296.58720972° ± 2.90e-05
Mean Anomaly (M)229.77083331° ± 2.42e-05
Mean Motion (n)0.2239977851°/day ± 1.02e-08
Perihelion dist (q)1.09505267 AU ± 2.39e-07
Aphelion dist (Q)4.27537696 AU ± 2.70e-07
Orbital Period4.40016085 yr ± 2.01e-07
Physical Parameters
H (abs. magnitude)17.56
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual1.178″
Uncertainty0
Orbit TypeAmor
MOID0.316309 AU
Observations Used648
Oppositions10
Arc Total2009-2022
First Observation Used2009-04-22
Last Observation Used2022-05-21
Observations (1189)
Date Type RA Dec Mag Band Observatory
2018-11-10 10:20:41 C 00 45 33.11 +01 28 27.2 U T08
2018-11-11 04:28:14 C 00 44 02.22 +02 31 15.2 V 703
2018-11-11 04:35:48 C 00 44 01.58 +02 31 40.9 V 703
2018-11-11 04:43:20 C 00 44 00.92 +02 32 06.8 V 703
2018-11-11 04:50:54 C 00 44 00.21 +02 32 32.6 V 703
2018-11-11 07:29:28 C 00 43 46.88 +02 41 27.2 U U63
2018-11-11 07:31:27 C 00 43 46.72 +02 41 34.0 U U63
2018-11-11 07:34:08 C 00 43 46.50 +02 41 43.3 U U63
2018-11-11 07:42:56 C 00 43 45.76 +02 42 13.0 U U63
2018-11-11 07:49:18 C 00 43 45.21 +02 42 34.4 U U63
2018-11-11 07:54:19 C 00 43 44.79 +02 42 51.4 U U63
2018-11-11 08:05:13 C 00 43 43.88 +02 43 28.2 U U63
2018-11-12 05:14:52 C 00 42 04.75 +03 53 46.1 V G96
2018-11-12 05:22:19 C 00 42 04.15 +03 54 10.3 V G96
2018-11-12 05:29:48 C 00 42 03.55 +03 54 34.6 V G96
2018-11-12 05:37:16 C 00 42 02.94 +03 54 58.9 V G96
2018-11-12 09:34:32 C 00 41 44.79 +04 07 50.7 U T05
2018-11-12 09:42:37 C 00 41 44.16 +04 08 17.1 U T05
2018-11-12 09:48:44 C 00 41 43.68 +04 08 36.3 U T05
2018-11-12 09:56:51 C 00 41 43.04 +04 09 02.4 U T05
2018-11-12 10:02:56 C 00 41 42.55 +04 09 22.1 U T05
2018-11-12 10:11:13 C 00 41 41.89 +04 09 48.8 U T05
2018-11-12 10:17:19 C 00 41 41.41 +04 10 08.1 U T05
2018-11-12 10:25:43 C 00 41 40.75 +04 10 35.4 U T05
2018-11-13 21:56:52 C 00 39 11.41 +06 01 01.0 V K38
2018-11-13 22:19:53 C 00 39 09.78 +06 02 10.1 V K38
2018-11-13 22:42:55 C 00 39 08.21 +06 03 19.0 V K38
2018-11-13 23:05:56 C 00 39 06.60 +06 04 28.1 V K38
2018-11-14 04:30:57 C 00 38 45.88 +06 20 42.5 V 703
2018-11-14 04:39:10 C 00 38 45.35 +06 21 06.4 V 703
2018-11-14 04:47:24 C 00 38 44.75 +06 21 31.6 V 703
2018-11-14 04:55:38 C 00 38 44.23 +06 21 54.8 V 703
2018-11-14 21:14:21 C 00 37 42.79 +07 09 28.1 V Z80
2018-11-14 21:17:21 C 00 37 42.61 +07 09 36.5 V Z80
2018-11-14 21:20:22 C 00 37 42.39 +07 09 46.0 V Z80
2018-11-14 21:23:22 C 00 37 42.23 +07 09 54.5 V Z80
2018-11-14 21:26:21 C 00 37 41.97 +07 10 02.9 V Z80
2018-11-15 20:29:32 C 00 36 21.00 +08 14 50.6 q 160
2018-11-15 20:32:57 C 00 36 20.80 +08 15 00.1 q 160
2018-11-15 20:36:25 C 00 36 20.63 +08 15 09.4 q 160
2018-11-16 03:48:26 C 00 35 56.89 +08 34 50.8 V I52
2018-11-16 03:49:46 C 00 35 56.79 +08 34 54.3 V I52
2018-11-16 03:49:58 C 00 35 56.79 +08 34 54.8 V I52
2018-11-16 03:51:03 C 00 35 56.73 +08 34 57.8 V I52
2018-11-17 06:11:04 C 00 34 33.91 +09 44 29.9 o 691
2018-11-17 06:35:22 C 00 34 32.63 +09 45 32.3 o 691
2018-11-17 06:58:45 C 00 34 31.39 +09 46 32.1 o 691
2018-11-27 04:04:35 C 00 27 31.16 +17 58 18.9 V 703
2018-11-27 04:12:28 C 00 27 31.05 +17 58 32.0 V 703
2018-11-27 04:20:15 C 00 27 30.87 +17 58 45.1 V 703