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
2018-11-02 04:24:40 C 01 08 42.13 -12 23 16.2 V 703
2018-11-02 04:32:16 C 01 08 40.93 -12 22 39.4 V 703
2018-11-02 04:39:52 C 01 08 39.74 -12 22 02.3 V 703
2018-11-02 04:47:28 C 01 08 38.54 -12 21 24.8 V 703
2018-11-02 05:50:12 C 01 08 28.73 -12 16 21.0 o 691
2018-11-02 06:03:38 C 01 08 26.64 -12 15 15.9 o 691
2018-11-02 06:17:04 C 01 08 24.51 -12 14 10.8 o 691
2018-11-02 06:50:11 V 01 08 19.42 -12 11 30.1 247
2018-11-02 06:50:11 v 1 243.5720 +32.8424 247
2018-11-02 10:27:58 C 01 07 46.53 -11 53 53.6 U T08
2018-11-02 10:42:23 C 01 07 44.31 -11 52 43.9 U T08
2018-11-02 10:56:47 C 01 07 42.09 -11 51 34.5 U T08
2018-11-02 11:11:23 C 01 07 39.83 -11 50 23.8 U T08
2018-11-04 05:53:45 C 01 01 40.95 -08 30 31.1 V G96
2018-11-04 06:01:10 C 01 01 39.92 -08 29 57.4 V G96
2018-11-04 06:08:36 C 01 01 38.88 -08 29 23.6 V G96
2018-11-04 06:16:03 C 01 01 37.86 -08 28 49.8 V G96
2018-11-04 23:53:21 C 00 59 21.05 -07 09 49.5 V G40
2018-11-05 00:22:54 C 00 59 17.15 -07 07 39.0 V G40
2018-11-05 00:53:19 C 00 59 13.15 -07 05 24.4 V G40
2018-11-05 11:38:57 C 00 57 53.29 -06 17 50.8 V 474
2018-11-05 11:44:43 C 00 57 52.55 -06 17 25.8 V 474
2018-11-05 11:50:28 C 00 57 51.82 -06 17 00.6 V 474
2018-11-06 09:44:21 C 00 55 15.72 -04 44 00.3 U T08
2018-11-06 09:58:42 C 00 55 14.01 -04 43 00.4 U T08
2018-11-06 10:13:10 C 00 55 12.27 -04 41 59.4 U T08
2018-11-06 10:27:45 C 00 55 10.51 -04 40 58.5 U T08
2018-11-07 06:37:23 C 00 52 56.742 -03 18 02.47 U F52
2018-11-07 07:16:31 C 00 52 52.282 -03 15 24.35 U F52
2018-11-07 07:36:02 C 00 52 50.054 -03 14 05.54 U F52
2018-11-07 18:17:08 C 00 51 42.12 -02 31 29.6 q K74
2018-11-07 18:20:29 C 00 51 41.77 -02 31 16.4 q K74
2018-11-07 18:25:23 C 00 51 41.23 -02 30 56.7 q K74
2018-11-07 23:56:43 C 00 51 05.71 -02 09 11.0 V Z80
2018-11-07 23:59:12 C 00 51 05.41 -02 09 01.3 V Z80
2018-11-08 00:01:42 C 00 51 05.14 -02 08 51.6 V Z80
2018-11-08 00:04:12 C 00 51 04.90 -02 08 41.5 V Z80
2018-11-08 00:06:42 C 00 51 04.60 -02 08 31.8 V Z80
2018-11-08 00:09:12 C 00 51 04.35 -02 08 21.6 V Z80
2018-11-08 10:10:50 C 00 50 03.01 -01 29 14.2 U T05
2018-11-08 10:25:10 C 00 50 01.51 -01 28 19.0 U T05
2018-11-08 10:39:49 C 00 49 59.97 -01 27 22.6 U T05
2018-11-08 10:54:18 C 00 49 58.46 -01 26 26.7 U T05
2018-11-09 04:48:19 C 00 48 14.78 -00 18 43.8 V 703
2018-11-09 04:55:53 C 00 48 14.04 -00 18 15.4 V 703
2018-11-09 05:03:27 C 00 48 13.29 -00 17 47.3 V 703
2018-11-09 05:11:02 C 00 48 12.51 -00 17 19.1 V 703
2018-11-10 09:37:26 C 00 45 37.07 +01 25 54.8 U T08
2018-11-10 09:51:49 C 00 45 35.75 +01 26 45.3 U T08
2018-11-10 10:06:16 C 00 45 34.43 +01 27 36.5 U T08