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
2018-09-29 06:44:40 s 1 -175755.43 7 +306719.99 4190.0 C57
2018-09-29 12:14:40 S 05 17 47.966 -61 18 32.29 V C57
2018-09-29 12:14:40 s 1 -183824.79 2 +294750.50 2570.0 C57
2018-09-29 13:14:40 S 05 17 26.796 -61 17 39.37 V C57
2018-09-29 13:14:40 s 1 -185223.14 6 +292459.52 5780.0 C57
2018-09-29 13:44:40 S 05 17 17.354 -61 17 20.18 V C57
2018-09-29 13:44:40 s 1 -185914.08 2 +291300.78 5430.0 C57
2018-09-29 15:44:40 S 05 16 35.057 -61 15 30.02 V C57
2018-09-29 15:44:40 s 1 -188621.84 5 +286577.41 8520.0 C57
2018-09-29 19:44:40 S 05 15 10.584 -61 11 52.76 V C57
2018-09-29 19:44:40 s 1 -193759.00 6 +276705.79 1010.0 C57
2018-09-29 20:14:40 S 05 14 59.561 -61 11 27.35 V C57
2018-09-29 20:14:40 s 1 -194374.12 1 +275431.95 2700.0 C57
2018-09-29 20:44:40 S 05 14 49.483 -61 10 58.12 V C57
2018-09-29 20:44:40 s 1 -194983.06 3 +274149.24 2680.0 C57
2018-09-29 23:14:40 S 05 13 56.642 -61 08 40.67 V C57
2018-09-29 23:14:40 s 1 -197933.40 4 +267602.49 6950.0 C57
2018-09-30 00:14:40 S 05 13 36.221 -61 07 48.18 V C57
2018-09-30 00:14:40 s 1 -199068.52 1 +264921.59 630.0 C57
2018-09-30 03:14:40 S 05 12 32.292 -61 04 53.15 V C57
2018-09-30 03:14:40 s 1 -202313.86 7 +256665.32 4970.0 C57
2018-09-30 05:14:40 S 05 11 49.754 -61 02 55.10 V C57
2018-09-30 05:14:40 s 1 -204339.55 5 +250982.97 7170.0 C57
2018-09-30 05:44:40 S 05 11 39.578 -61 02 29.26 V C57
2018-09-30 05:44:40 s 1 -204828.20 4 +249540.09 5490.0 C57
2018-09-30 06:14:40 S 05 11 29.280 -61 01 59.74 V C57
2018-09-30 06:14:40 s 1 -205309.62 3 +248088.29 6250.0 C57
2018-09-30 07:14:40 S 05 11 08.347 -61 00 56.63 V C57
2018-09-30 07:14:40 s 1 -206250.52 2 +245157.90 3710.0 C57
2018-09-30 09:14:40 S 05 10 24.818 -60 58 58.30 V C57
2018-09-30 09:14:40 s 1 -208042.79 3 +239189.98 2570.0 C57
2018-09-30 09:44:40 S 05 10 15.691 -60 58 35.69 V C57
2018-09-30 09:44:40 s 1 -208471.83 2 +237675.67 590.0 C57
2018-09-30 12:44:40 S 05 09 11.412 -60 55 28.49 V C57
2018-09-30 12:44:40 s 1 -210881.05 0 +228402.05 6760.0 C57
2018-09-30 13:44:40 S 05 08 51.120 -60 54 31.18 V C57
2018-09-30 13:44:40 s 1 -211619.58 7 +225239.31 7810.0 C57
2018-09-30 16:44:40 S 05 07 46.728 -60 51 24.88 V C57
2018-09-30 16:44:40 s 1 -213633.43 8 +215536.43 2460.0 C57
2018-09-30 19:14:40 S 05 06 54.108 -60 48 43.63 V C57
2018-09-30 19:14:40 s 1 -215071.27 6 +207204.80 3750.0 C57
2018-09-30 19:44:40 S 05 06 43.764 -60 48 11.88 V C57
2018-09-30 19:44:40 s 1 -215331.65 7 +205511.67 6670.0 C57
2018-09-30 20:14:40 S 05 06 33.108 -60 47 37.93 V C57
2018-09-30 20:14:40 s 1 -215582.77 9 +203809.60 720.0 C57
2018-09-30 22:44:40 S 05 05 39.514 -60 44 56.90 V C57
2018-09-30 22:44:40 s 1 -216696.48 1 +195165.42 690.0 C57
2018-09-30 23:14:40 S 05 05 30.079 -60 44 28.32 V C57
2018-09-30 23:14:40 s 1 -216890.21 5 +193409.85 1110.0 C57
2018-10-01 01:44:40 S 05 04 35.947 -60 41 43.98 V C57