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
2018-09-15 14:14:41 s 1 -191244.69 0 +291136.58 5960.0 C57
2018-09-15 16:14:41 S 06 47 11.755 -62 36 03.24 V C57
2018-09-15 16:14:41 s 1 -193793.06 2 +286389.86 1640.0 C57
2018-09-15 20:44:41 S 06 46 14.719 -62 35 52.22 V C57
2018-09-15 20:44:41 s 1 -199187.63 5 +275214.55 8410.0 C57
2018-09-15 21:14:41 S 06 46 08.666 -62 35 53.74 V C57
2018-09-15 21:14:41 s 1 -199756.96 5 +273930.46 8610.0 C57
2018-09-15 23:44:41 S 06 45 36.374 -62 35 42.86 V C57
2018-09-15 23:44:41 s 1 -202509.80 4 +267382.63 7600.0 C57
2018-09-16 00:14:41 S 06 45 29.030 -62 35 40.02 V C57
2018-09-16 00:14:41 s 1 -203041.26 1 +266047.57 9010.0 C57
2018-09-16 05:44:41 S 06 44 18.953 -62 35 15.14 V C57
2018-09-16 05:44:41 s 1 -208447.26 6 +250799.82 5570.0 C57
2018-09-16 06:44:41 S 06 44 06.084 -62 35 12.80 V C57
2018-09-16 06:44:41 s 1 -209340.16 8 +247916.62 1130.0 C57
2018-09-16 07:14:41 S 06 43 59.354 -62 35 12.88 V C57
2018-09-16 07:14:41 s 1 -209775.83 3 +246462.21 6760.0 C57
2018-09-19 02:14:41 S 06 29 23.866 -62 24 39.17 V C57
2018-09-19 02:14:41 s 1 -162585.69 9 -20350.310 1990.0 C57
2018-09-19 09:44:41 S 06 27 49.202 -62 23 04.88 V C57
2018-09-19 09:44:41 s 1 -134453.62 2 -54520.002 120.0 C57
2018-09-19 10:14:41 S 06 27 43.003 -62 23 01.36 V C57
2018-09-19 10:14:41 s 1 -132298.40 3 -56710.234 5360.0 C57
2018-09-19 13:44:41 S 06 26 58.164 -62 22 16.18 V C57
2018-09-19 13:44:41 s 1 -116154.19 8 -71533.957 6050.0 C57
2018-09-23 13:14:41 S 06 04 12.072 -62 24 31.79 V C57
2018-09-23 13:14:41 s 1 +113306.94 0 +240453.01 8140.0 C57
2018-09-23 13:17:10 S 06 03 26.43 -62 12 52.6 L C51
2018-09-23 13:44:41 S 06 04 02.988 -62 24 23.62 V C57
2018-09-23 13:44:41 s 1 +112404.58 2 +242171.90 8370.0 C57
2018-09-23 14:14:41 S 06 03 53.966 -62 24 23.72 V C57
2018-09-23 14:14:41 s 1 +111495.92 8 +243877.22 2750.0 C57
2018-09-23 16:25:29 S 06 02 33.88 -62 12 05.3 L C51
2018-09-23 16:25:40 S 06 02 33.83 -62 12 05.4 L C51
2018-09-23 19:33:59 S 06 01 41.58 -62 11 19.5 L C51
2018-09-23 22:42:29 S 06 00 49.05 -62 10 31.9 L C51
2018-09-23 22:44:41 S 06 01 26.225 -62 23 22.96 V C57
2018-09-23 22:44:41 s 1 +95190.570 0 +270836.77 5860.0 C57
2018-09-23 23:14:41 S 06 01 17.772 -62 23 21.26 V C57
2018-09-23 23:14:41 s 1 +94186.618 0 +272305.77 9150.0 C57
2018-09-23 23:44:41 S 06 01 08.280 -62 23 16.15 V C57
2018-09-23 23:44:41 s 1 +93178.267 0 +273762.06 8660.0 C57
2018-09-24 00:14:41 S 06 01 00.067 -62 23 09.49 V C57
2018-09-24 00:14:41 s 1 +92165.601 0 +275205.70 4930.0 C57
2018-09-24 01:44:41 S 06 00 31.740 -62 22 57.65 V C57
2018-09-24 01:44:41 s 1 +89102.541 0 +279461.09 9690.0 C57
2018-09-24 02:14:41 S 06 00 23.035 -62 22 54.05 V C57
2018-09-24 02:14:41 s 1 +88073.436 0 +280854.52 8330.0 C57
2018-09-24 05:44:41 S 05 59 21.749 -62 22 19.96 V C57
2018-09-24 05:44:41 s 1 +80764.404 0 +290262.32 8820.0 C57