IAA RAS IAA Minor Planet Database

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
2018-09-25 16:14:41 S 05 48 42.768 -62 13 24.02 – V C57
2018-09-25 16:44:41 S 05 48 34.157 -62 13 17.62 – V C57
2018-09-25 17:14:40 S 05 48 24.250 -62 13 06.13 – V C57
2018-09-25 18:44:40 S 05 47 53.998 -62 12 31.90 – V C57
2018-09-25 21:14:41 S 05 47 07.788 -62 11 38.94 – V C57
2018-09-25 22:44:41 S 05 46 38.393 -62 11 06.04 – V C57
2018-09-25 22:44:41 s 1 -12234.400 0 +359164.13 7040.0 – C57
2018-09-25 23:14:40 S 05 46 28.390 -62 10 54.34 – V C57
2018-09-25 23:14:40 s 1 -13396.938 0 +359569.83 1200.0 – C57
2018-09-25 23:44:41 S 05 46 19.202 -62 10 45.62 – V C57
2018-09-25 23:44:41 s 1 -14559.155 0 +359965.68 2730.0 – C57
2018-09-26 00:14:41 S 05 46 11.386 -62 10 25.72 – V C57
2018-09-26 00:14:41 s 1 -15721.019 0 +360351.72 1810.0 – C57
2018-09-26 02:14:40 S 05 45 30.427 -62 09 42.55 – V C57
2018-09-26 02:14:40 s 1 -20364.362 0 +361798.07 7660.0 – C57
2018-09-26 02:44:41 S 05 45 20.933 -62 09 31.75 – V C57
2018-09-26 02:44:41 s 1 -21524.020 0 +362135.29 7480.0 – C57
2018-09-26 03:14:41 S 05 45 11.909 -62 09 19.40 – V C57
2018-09-26 03:14:41 s 1 -22683.148 0 +362462.79 6020.0 – C57
2018-09-26 03:44:40 S 05 45 01.970 -62 09 08.60 – V C57
2018-09-26 03:44:40 s 1 -23841.718 0 +362780.60 3470.0 – C57
2018-09-26 09:14:41 S 05 43 18.977 -62 07 04.66 – V C57
2018-09-26 09:14:41 s 1 -36540.884 0 +365641.12 7300.0 – C57
2018-09-26 09:44:40 S 05 43 05.222 -62 06 35.78 – V C57
2018-09-26 09:44:40 s 1 -37690.519 0 +365843.81 6200.0 – C57
2018-09-26 10:14:41 S 05 42 55.174 -62 06 30.28 – V C57
2018-09-26 10:14:41 s 1 -38839.229 0 +366036.99 6400.0 – C57
2018-09-26 12:14:41 S 05 42 15.118 -62 05 28.90 – V C57
2018-09-26 12:14:41 s 1 -43424.257 0 +366715.05 3690.0 – C57
2018-09-26 12:44:40 S 05 42 06.290 -62 05 16.62 – V C57
2018-09-26 12:44:40 s 1 -44567.926 0 +366860.96 3010.0 – C57
2018-09-26 13:14:40 S 05 41 56.686 -62 05 03.55 – V C57
2018-09-26 13:14:40 s 1 -45710.504 0 +366997.46 4670.0 – C57
2018-09-26 13:44:41 S 05 41 47.014 -62 04 49.08 – V C57
2018-09-26 13:44:41 s 1 -46851.967 0 +367124.55 8840.0 – C57
2018-09-26 14:14:40 S 05 41 37.212 -62 04 35.47 – V C57
2018-09-26 14:14:40 s 1 -47992.285 0 +367242.25 5710.0 – C57
2018-09-26 16:14:40 S 05 40 57.214 -62 03 40.36 – V C57
2018-09-26 16:14:40 s 1 -52541.591 0 +367619.44 3440.0 – C57
2018-09-26 16:44:41 S 05 40 48.653 -62 03 27.50 – V C57
2018-09-26 16:44:41 s 1 -53675.792 0 +367690.39 6290.0 – C57
2018-09-26 17:14:40 S 05 40 38.006 -62 03 12.56 – V C57
2018-09-26 17:14:40 s 1 -54808.690 0 +367752.02 2840.0 – C57
2018-09-26 20:14:40 S 05 39 38.902 -62 01 46.34 – V C57
2018-09-26 20:14:40 s 1 -61577.237 0 +367926.86 9210.0 – C57
2018-09-26 20:44:40 S 05 39 29.333 -62 01 34.25 – V C57
2018-09-26 20:44:40 s 1 -62700.277 0 +367923.61 6330.0 – C57
2018-09-26 22:14:40 S 05 38 57.338 -62 00 41.44 – V C57
2018-09-26 22:14:40 s 1 -66060.214 0 +367858.56 8460.0 – C57
2018-09-26 22:44:41 S 05 38 47.909 -62 00 27.14 – V C57