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
2018-11-27 04:27:56 C 00 27 30.78 +17 58 57.3 V 703
2018-11-29 04:33:21 C 00 27 03.05 +19 15 40.8 V 703
2018-11-29 04:40:56 C 00 27 02.94 +19 15 52.7 V 703
2018-11-29 04:48:32 C 00 27 02.85 +19 16 04.3 V 703
2018-11-29 04:56:09 C 00 27 02.81 +19 16 16.4 V 703
2018-11-29 08:16:18 C 00 27 01.63 +19 21 25.1 U T05
2018-11-29 08:30:46 C 00 27 01.25 +19 21 45.8 U T05
2018-11-29 08:44:56 C 00 27 01.15 +19 22 07.4 U T05
2018-11-29 08:59:02 C 00 27 01.04 +19 22 28.7 U T05
2018-11-29 20:08:17 C 00 26 57.83 +19 39 16.1 18.8 q J43
2018-11-29 20:20:46 C 00 26 57.74 +19 39 35.1 18.8 q J43
2018-11-29 20:33:13 C 00 26 57.63 +19 39 53.3 18.6 q J43
2018-11-29 20:45:40 C 00 26 57.53 +19 40 11.8 18.6 q J43
2018-12-24 06:18:36 C 00 38 43.388 +29 40 22.32 U F51
2018-12-24 06:33:58 C 00 38 43.951 +29 40 33.39 U F51
2018-12-24 07:04:37 C 00 38 45.084 +29 40 55.42 U F51
2018-12-25 20:55:19 C 00 40 15.96 +30 07 55.2 V L01
2018-12-25 20:58:44 C 00 40 16.05 +30 07 57.1 V L01
2018-12-25 21:02:46 C 00 40 16.31 +30 08 00.5 V L01
2019-01-02 05:22:13 C 00 48 10.993 +32 04 01.45 U F51
2019-01-02 05:38:57 C 00 48 11.769 +32 04 11.68 U F51
2019-01-02 05:55:44 C 00 48 12.550 +32 04 21.95 U F51
2019-01-02 06:12:23 C 00 48 13.325 +32 04 32.24 U F51
2019-01-04 02:16:21 C 00 50 24.22 +32 31 18.9 V G96
2019-01-04 02:24:46 C 00 50 24.67 +32 31 23.4 V G96
2019-01-04 02:33:11 C 00 50 25.08 +32 31 28.8 V G96
2019-01-04 02:41:36 C 00 50 25.46 +32 31 34.1 V G96
2019-01-13 07:23:00 C 01 02 23.999 +34 36 01.35 U F51
2019-01-13 07:36:14 C 01 02 24.723 +34 36 08.64 U F51
2019-01-13 07:49:32 C 01 02 25.480 +34 36 15.55 U F51
2019-01-13 08:02:52 C 01 02 26.259 +34 36 22.10 U F51
2022-04-09 07:39:38 C 14 06 12.312 +05 08 14.32 V G96
2022-04-09 07:47:01 C 14 06 11.905 +05 08 14.53 V G96
2022-04-09 07:54:25 C 14 06 11.534 +05 08 14.89 V G96
2022-04-09 08:01:49 C 14 06 11.048 +05 08 15.36 V G96
2022-05-21 06:54:43 C 13 07 47.885 +03 19 44.15 U F52
2022-05-21 07:12:22 C 13 07 47.017 +03 19 39.42 U F52
2022-05-21 07:29:59 C 13 07 46.177 +03 19 34.95 U F52
2022-05-21 07:47:39 C 13 07 45.322 +03 19 30.20 U F52