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
2018-09-10 06:44:41 S 07 11 52.538 -62 25 40.48 – V C57
2018-09-10 06:44:41 s 1 +69631.867 0 +306240.13 9730.0 – C57
2018-09-10 07:44:41 S 07 11 42.480 -62 25 56.06 – V C57
2018-09-10 07:44:41 s 1 +67445.270 0 +308558.87 7450.0 – C57
2018-09-10 09:44:41 S 07 11 22.373 -62 26 08.09 – V C57
2018-09-10 09:44:41 s 1 +63043.515 0 +313059.69 9460.0 – C57
2018-09-10 10:14:41 S 07 11 17.906 -62 26 12.80 – V C57
2018-09-10 10:14:41 s 1 +61937.452 0 +314156.61 4760.0 – C57
2018-09-10 10:44:41 S 07 11 12.530 -62 26 22.27 – V C57
2018-09-10 10:44:41 s 1 +60829.247 0 +315242.30 9710.0 – C57
2018-09-10 11:14:41 S 07 11 06.907 -62 26 30.73 – V C57
2018-09-10 11:14:41 s 1 +59718.955 0 +316316.77 4660.0 – C57
2018-09-10 13:14:41 S 07 10 46.817 -62 26 47.11 – V C57
2018-09-10 13:14:41 s 1 +55257.953 0 +320503.24 1550.0 – C57
2018-09-10 13:44:41 S 07 10 41.052 -62 26 55.79 – V C57
2018-09-10 13:44:41 s 1 +54137.999 0 +321522.16 1750.0 – C57
2018-09-10 14:14:41 S 07 10 37.193 -62 26 55.64 – V C57
2018-09-10 14:14:41 s 1 +53016.264 0 +322530.07 4030.0 – C57
2018-09-10 17:14:41 S 07 10 06.590 -62 27 34.31 – V C57
2018-09-10 17:14:41 s 1 +46251.146 0 +328347.98 9340.0 – C57
2018-09-10 18:14:41 S 07 09 55.608 -62 27 46.22 – V C57
2018-09-10 18:14:41 s 1 +43984.011 0 +330200.57 5550.0 – C57
2018-09-10 19:44:41 S 07 09 39.605 -62 28 00.73 – V C57
2018-09-10 19:44:41 s 1 +40575.237 0 +332899.78 8570.0 – C57
2018-09-10 20:44:41 S 07 09 30.547 -62 28 15.38 – V C57
2018-09-10 20:44:41 s 1 +38295.178 0 +334645.45 8550.0 – C57
2018-09-10 23:44:41 S 07 08 59.909 -62 28 44.22 – V C57
2018-09-10 23:44:41 s 1 +31428.867 0 +339629.07 830.0 – C57
2018-09-11 00:14:41 S 07 08 54.005 -62 28 47.21 – V C57
2018-09-11 00:14:41 s 1 +30281.101 0 +340423.00 9490.0 – C57
2018-09-11 00:44:41 S 07 08 48.564 -62 28 52.39 – V C57
2018-09-11 00:44:41 s 1 +29132.476 0 +341206.54 6460.0 – C57
2018-09-11 01:14:41 S 07 08 42.809 -62 28 54.88 – V C57
2018-09-11 01:14:41 s 1 +27983.030 0 +341979.70 2040.0 – C57
2018-09-11 02:44:41 S 07 08 28.070 -62 29 11.18 – V C57
2018-09-11 02:44:41 s 1 +24530.156 0 +344237.17 2960.0 – C57
2018-09-11 04:14:41 S 07 08 11.868 -62 29 25.80 – V C57
2018-09-11 04:14:41 s 1 +21071.269 0 +346402.18 600.0 – C57
2018-09-11 10:14:41 S 07 07 06.346 -62 30 31.10 – V C57
2018-09-11 10:44:41 S 07 07 02.938 -62 30 25.56 – V C57
2018-09-11 11:14:41 S 07 06 55.786 -62 30 33.44 – V C57
2018-09-11 14:14:41 S 07 06 25.481 -62 30 54.22 – V C57
2018-09-11 16:14:41 S 07 06 04.260 -62 31 16.39 – V C57
2018-09-11 16:44:41 S 07 05 57.384 -62 31 22.08 – V C57
2018-09-11 17:14:41 S 07 05 53.254 -62 31 22.30 – V C57
2018-09-11 19:44:41 S 07 05 24.514 -62 31 45.26 – V C57
2018-09-11 19:44:41 s 1 -14796.503 0 +363512.02 6680.0 – C57
2018-09-11 20:14:41 S 07 05 19.874 -62 31 48.97 – V C57
2018-09-11 20:14:41 s 1 -15951.333 0 +363908.21 5450.0 – C57
2018-09-11 20:44:41 S 07 05 13.913 -62 31 51.06 – V C57