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
2018-10-16 18:44:40 s 1 -185165.24 6 +40777.248 1350.0 C57
2018-10-16 19:14:40 S 02 43 04.260 -45 29 24.94 V C57
2018-10-16 19:14:40 s 1 -184193.84 5 +38359.239 4540.0 C57
2018-10-16 22:44:40 S 02 42 00.422 -45 14 35.23 V C57
2018-10-16 22:44:40 s 1 -176681.68 5 +21302.796 7340.0 C57
2018-10-17 00:44:40 S 02 41 22.884 -45 05 51.76 V C57
2018-10-17 00:44:40 s 1 -171795.80 3 +11477.956 5780.0 C57
2018-10-17 01:14:40 S 02 41 16.020 -45 04 14.20 V C57
2018-10-17 01:14:40 s 1 -170502.90 8 + 9016.035 2500.0 C57
2018-10-17 01:44:40 S 02 41 05.995 -45 01 54.80 V C57
2018-10-17 01:44:40 s 1 -169180.60 0 + 6552.568 4280.0 C57
2018-10-17 02:14:40 S 02 40 57.139 -44 59 40.60 V C57
2018-10-17 02:14:40 s 1 -167828.44 7 + 4087.956 8120.0 C57
2018-10-17 02:44:40 S 02 40 49.332 -44 57 50.90 V C57
2018-10-17 02:44:40 s 1 -166446.01 0 + 1622.616 970.0 C57
2018-10-17 05:14:40 S 02 40 02.923 -44 46 48.61 V C57
2018-10-17 05:14:40 s 1 -159063.82 5 -10698.888 9280.0 C57
2018-10-17 08:14:40 S 02 39 09.518 -44 34 08.08 V C57
2018-10-17 08:14:40 s 1 -149109.67 9 -25402.506 3240.0 C57
2018-10-17 11:44:40 S 02 38 07.963 -44 19 22.58 V C57
2018-10-17 11:44:40 s 1 -135854.28 5 -42260.665 4030.0 C57
2018-10-17 12:14:40 S 02 37 59.590 -44 17 14.75 V C57
2018-10-17 12:14:40 s 1 -133807.18 9 -44627.489 9430.0 C57
2018-10-22 09:20:34 C 02 02 45.36 -35 05 42.1 U T05
2018-10-22 09:41:38 C 02 02 39.41 -35 03 53.6 U T05
2018-10-22 09:49:36 C 02 02 37.19 -35 03 12.4 U T05
2018-10-22 10:10:59 C 02 02 31.04 -35 01 19.2 U T05
2018-10-26 11:02:18 C 01 38 34.33 -26 24 29.6 U T05
2018-10-26 11:16:20 C 01 38 31.11 -26 23 13.7 U T05
2018-10-26 11:30:26 C 01 38 27.87 -26 21 57.0 U T05
2018-10-26 11:44:26 C 01 38 24.67 -26 20 41.0 U T05
2018-10-27 07:22:15 C 01 34 09.38 -24 34 38.1 V 703
2018-10-27 07:29:34 C 01 34 07.79 -24 33 58.4 V 703
2018-10-27 07:36:55 C 01 34 06.17 -24 33 18.8 V 703
2018-10-27 07:44:15 C 01 34 04.57 -24 32 39.0 V 703
2018-10-29 06:21:47 C 01 24 42.04 -20 22 55.0 V 703
2018-10-29 06:29:26 C 01 24 40.55 -20 22 14.1 V 703
2018-10-29 06:37:04 C 01 24 38.99 -20 21 33.9 V 703
2018-10-29 06:44:42 C 01 24 37.52 -20 20 53.2 V 703
2018-11-01 05:53:19 C 01 12 11.59 -14 14 08.2 o 691
2018-11-01 06:01:35 C 01 12 10.23 -14 13 27.1 o 691
2018-11-01 06:09:52 C 01 12 08.84 -14 12 45.4 o 691
2018-11-01 10:37:43 C 01 11 25.72 -13 50 29.6 U T08
2018-11-01 10:51:46 C 01 11 23.40 -13 49 19.3 U T08
2018-11-01 11:05:54 C 01 11 21.08 -13 48 09.4 U T08
2018-11-01 11:19:57 C 01 11 18.78 -13 46 59.5 U T08
2018-11-02 03:44:49 V 01 08 48.43 -12 26 28.1 247
2018-11-02 03:44:49 v 1 243.5720 +32.8424 247
2018-11-02 03:50:51 V 01 08 47.47 -12 25 59.6 247
2018-11-02 03:50:51 v 1 243.5720 +32.8424 247