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
2009-04-22 09:34:50 C 14 31 17.11 -12 25 38.7 r G96
2009-04-22 09:44:46 C 14 31 16.35 -12 25 41.1 r G96
2009-04-22 09:54:42 C 14 31 15.56 -12 25 43.8 r G96
2009-04-22 10:04:35 C 14 31 14.80 -12 25 46.2 r G96
2009-04-22 17:02:30 C 14 30 43.19 -12 27 29.2 o 474
2009-04-22 17:05:20 C 14 30 42.98 -12 27 30.1 o 474
2009-04-22 17:08:00 C 14 30 42.79 -12 27 30.8 o 474
2009-04-22 17:10:28 C 14 30 42.60 -12 27 31.8 o 474
2009-04-23 06:25:24 C 14 29 42.38 -12 31 11.6 r H55
2009-04-23 06:30:44 C 14 29 41.96 -12 31 13.1 r H55
2009-04-23 06:36:05 C 14 29 41.53 -12 31 14.5 r H55
2009-04-23 07:36:32 C 14 29 36.99 -12 31 30.3 r G96
2009-04-23 07:37:42 C 14 29 36.92 -12 31 30.3 r G96
2009-04-23 07:38:51 C 14 29 36.81 -12 31 31.2 r G96
2009-04-23 07:39:59 C 14 29 36.74 -12 31 31.4 r G96
2009-04-23 10:01:30 C 14 29 26.07 -12 32 01.1 o 474
2009-04-23 10:02:59 C 14 29 25.98 -12 32 01.2 o 474
2009-04-23 10:04:40 C 14 29 25.87 -12 32 02.0 o 474
2009-04-23 10:50:38 C 14 29 22.27 -12 32 14.1 o 474
2009-04-23 10:55:11 C 14 29 21.95 -12 32 15.2 o 474
2009-04-23 14:10:15 C 14 29 06.83 -12 33 09.5 o E10
2009-04-23 14:12:33 C 14 29 06.65 -12 33 09.6 o E10
2009-04-23 14:14:51 C 14 29 06.47 -12 33 10.4 o E10
2009-04-27 07:26:23 C 14 22 04.36 -12 57 20.1 r 448
2009-04-27 08:02:27 C 14 22 01.43 -12 57 27.7 r 448
2009-04-27 08:37:51 C 14 21 58.50 -12 57 37.6 r 448
2009-05-02 13:50:39 C 14 11 35.37 -13 31 52.2 o 474
2009-05-02 13:53:07 C 14 11 35.14 -13 31 52.8 o 474
2009-05-02 14:03:29 C 14 11 34.25 -13 31 55.9 o 474
2009-05-20 02:18:27 C 13 35 48.10 -15 30 21.7 o H55
2009-05-20 02:43:03 C 13 35 46.00 -15 30 27.5 o H55
2009-05-20 02:54:44 C 13 35 45.01 -15 30 30.5 o H55
2009-05-30 03:45:24 C 13 17 36.44 -16 40 31.9 o 291
2009-05-30 03:53:10 C 13 17 35.87 -16 40 34.1 o 291
2009-05-30 03:58:39 C 13 17 35.50 -16 40 35.9 o 291
2009-06-13 04:15:44 C 12 58 29.10 -18 26 25.2 o 291
2009-06-13 04:21:16 C 12 58 28.97 -18 26 26.9 o 291
2009-06-13 04:26:48 C 12 58 28.60 -18 26 29.2 o 291
2014-09-01 05:20:16 C 06 37 22.51 +43 45 32.6 t 950
2014-09-01 05:22:32 C 06 37 22.73 +43 45 34.0 t 950
2014-09-01 05:24:50 C 06 37 22.94 +43 45 35.6 t 950
2014-09-01 05:27:09 C 06 37 23.12 +43 45 37.0 t 950
2014-12-16 07:18:25 C 07 52 34.91 +74 25 53.1 t 705
2014-12-16 07:20:17 C 07 52 34.65 +74 25 53.9 t 705
2014-12-16 07:22:09 C 07 52 34.39 +74 25 54.9 t 705
2018-06-08 08:24:19 C 12 22 57.70 -72 59 16.3 U 474
2018-06-08 08:30:05 C 12 22 55.06 -72 59 16.0 U 474
2018-06-08 08:35:51 C 12 22 52.36 -72 59 15.9 U 474
2018-07-12 07:02:14 C 09 13 02.84 -64 33 45.0 U 474
2018-07-12 07:05:07 C 09 13 02.54 -64 33 43.2 U 474