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
2018-07-12 07:49:51 C 09 12 58.40 -64 33 17.8 U 474
2018-07-12 07:52:44 C 09 12 58.20 -64 33 16.4 U 474
2018-08-30 17:14:41 S 07 44 25.966 -61 55 48.22 V C57
2018-08-30 17:14:41 s 1 -146567.28 4 +350710.30 1050.0 C57
2018-08-30 18:14:41 S 07 44 19.162 -61 55 47.53 V C57
2018-08-30 18:14:41 s 1 -148410.85 6 +349510.43 2520.0 C57
2018-08-30 21:14:41 S 07 43 58.238 -61 56 08.88 V C57
2018-08-30 21:14:41 s 1 -153859.99 2 +345712.70 650.0 C57
2018-08-30 23:44:41 S 07 43 39.000 -61 56 18.71 V C57
2018-08-30 23:44:41 s 1 -158302.59 6 +342320.44 4960.0 C57
2018-08-31 00:14:41 S 07 43 35.350 -61 56 21.98 V C57
2018-08-31 00:14:41 s 1 -159180.58 7 +341617.49 6560.0 C57
2018-08-31 05:14:41 S 07 42 59.798 -61 56 51.50 V C57
2018-08-31 05:14:41 s 1 -167753.12 8 +334136.38 4080.0 C57
2018-08-31 10:44:41 S 07 42 19.183 -61 57 12.24 V C57
2018-08-31 10:44:41 s 1 -176723.02 5 +324960.79 8150.0 C57
2018-08-31 17:14:41 S 07 41 30.878 -61 57 43.16 V C57
2018-08-31 17:14:41 s 1 -186648.86 6 +312841.52 1460.0 C57
2018-08-31 17:44:41 S 07 41 27.538 -61 57 39.17 V C57
2018-08-31 17:44:41 s 1 -187380.22 8 +311852.10 3670.0 C57
2018-08-31 18:44:41 S 07 41 20.868 -61 57 42.12 V C57
2018-08-31 18:44:41 s 1 -188828.62 7 +309848.77 4650.0 C57
2018-09-01 01:44:41 S 07 40 28.025 -61 58 07.36 V C57
2018-09-01 01:44:41 s 1 -198409.99 3 +294911.21 1280.0 C57
2018-09-01 10:44:41 S 07 39 19.874 -61 58 33.10 V C57
2018-09-01 10:44:41 s 1 -209170.49 3 +273354.39 3550.0 C57
2018-09-01 14:14:41 S 07 38 53.088 -61 58 44.87 V C57
2018-09-01 14:14:41 s 1 -212834.12 4 +264256.32 7860.0 C57
2018-09-01 17:14:41 S 07 38 30.518 -61 58 54.84 V C57
2018-09-01 17:14:41 s 1 -215723.53 8 +256139.16 1150.0 C57
2018-09-01 17:44:41 S 07 38 26.738 -61 58 52.61 V C57
2018-09-01 17:44:41 s 1 -216181.78 3 +254757.69 420.0 C57
2018-09-09 17:14:41 S 07 14 06.067 -62 22 40.69 V C57
2018-09-09 17:14:41 s 1 +97948.946 0 +270319.62 540.0 C57
2018-09-09 17:44:41 S 07 14 00.778 -62 22 42.28 V C57
2018-09-09 17:44:41 s 1 +96948.591 0 +271808.04 9780.0 C57
2018-09-09 20:44:41 S 07 13 30.910 -62 23 27.92 V C57
2018-09-09 20:44:41 s 1 +90857.615 0 +280477.64 8560.0 C57
2018-09-09 21:14:41 S 07 13 26.006 -62 23 35.56 V C57
2018-09-09 21:14:41 s 1 +89828.403 0 +281879.47 3830.0 C57
2018-09-09 21:44:41 S 07 13 23.326 -62 23 45.24 V C57
2018-09-09 21:44:41 s 1 +88795.386 0 +283269.10 7740.0 C57
2018-09-10 03:14:41 S 07 12 27.960 -62 24 58.07 V C57
2018-09-10 03:14:41 s 1 +77202.003 0 +297760.87 8010.0 C57
2018-09-10 03:44:41 S 07 12 22.673 -62 24 54.32 V C57
2018-09-10 03:44:41 s 1 +76128.941 0 +299007.12 2410.0 C57
2018-09-10 04:44:41 S 07 12 13.198 -62 25 06.74 V C57
2018-09-10 04:44:41 s 1 +73974.184 0 +301464.53 5410.0 C57
2018-09-10 05:44:41 S 07 12 03.041 -62 25 20.60 V C57
2018-09-10 05:44:41 s 1 +71808.330 0 +303875.44 100.0 C57