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
2018-10-13 18:44:40 s 1 -173433.43 6 +299622.48 2760.0 C57
2018-10-13 19:14:40 S 03 07 28.661 -50 17 17.30 V C57
2018-10-13 19:14:40 s 1 -174135.16 8 +298480.85 7450.0 C57
2018-10-13 19:44:40 S 03 07 17.407 -50 15 26.50 V C57
2018-10-13 19:44:40 s 1 -174831.64 4 +297330.26 4640.0 C57
2018-10-13 21:44:40 S 03 06 33.648 -50 08 19.32 V C57
2018-10-13 21:44:40 s 1 -177564.09 1 +292638.18 3320.0 C57
2018-10-13 22:44:40 S 03 06 11.280 -50 04 19.99 V C57
2018-10-13 22:44:40 s 1 -178897.59 8 +290238.19 6040.0 C57
2018-10-14 01:14:40 S 03 05 16.234 -49 54 51.77 V C57
2018-10-14 01:14:40 s 1 -182132.90 0 +284080.41 5410.0 C57
2018-10-14 01:44:40 S 03 05 06.240 -49 53 12.84 V C57
2018-10-14 01:44:40 s 1 -182762.69 1 +282821.74 2420.0 C57
2018-10-14 02:14:40 S 03 04 55.675 -49 51 14.58 V C57
2018-10-14 02:14:40 s 1 -183386.60 9 +281554.02 8490.0 C57
2018-10-14 02:44:40 S 03 04 45.122 -49 49 34.00 V C57
2018-10-14 02:44:40 s 1 -184004.60 2 +280277.23 3340.0 C57
2018-10-14 04:44:40 S 03 03 59.686 -49 41 42.86 V C57
2018-10-14 04:44:40 s 1 -186416.29 9 +275079.30 4800.0 C57
2018-10-14 07:44:40 S 03 02 55.694 -49 30 28.15 V C57
2018-10-14 07:44:40 s 1 -189847.11 5 +267009.16 450.0 C57
2018-10-14 08:14:40 S 03 02 45.636 -49 28 37.67 V C57
2018-10-14 08:14:40 s 1 -190396.42 2 +265632.15 2350.0 C57
2018-10-14 08:44:40 S 03 02 33.965 -49 26 25.12 V C57
2018-10-14 08:44:40 s 1 -190939.14 9 +264245.98 9390.0 C57
2018-10-14 09:14:40 S 03 02 23.882 -49 24 44.82 V C57
2018-10-14 09:14:40 s 1 -191475.23 7 +262850.65 1250.0 C57
2018-10-14 12:14:40 S 03 01 20.110 -49 13 19.27 V C57
2018-10-14 12:14:40 s 1 -194548.98 3 +254285.67 4830.0 C57
2018-10-14 12:44:40 S 03 01 10.284 -49 11 30.34 V C57
2018-10-14 12:44:40 s 1 -195036.90 0 +252825.94 960.0 C57
2018-10-14 13:14:40 S 03 00 59.057 -49 09 35.53 V C57
2018-10-14 13:14:40 s 1 -195517.68 3 +251356.97 9160.0 C57
2018-10-14 13:44:40 S 03 00 47.630 -49 07 17.08 V C57
2018-10-14 13:44:40 s 1 -195991.26 8 +249878.75 9060.0 C57
2018-10-14 14:44:40 S 03 00 25.788 -49 03 30.71 V C57
2018-10-14 14:44:40 s 1 -196916.57 8 +246894.57 2520.0 C57
2018-10-14 15:14:40 S 03 00 16.277 -49 01 49.94 V C57
2018-10-14 15:14:40 s 1 -197368.16 9 +245388.59 5330.0 C57
2018-10-14 15:44:40 S 03 00 05.683 -48 59 50.82 V C57
2018-10-14 15:44:40 s 1 -197812.29 3 +243873.33 8350.0 C57
2018-10-14 16:14:40 S 02 59 54.202 -48 57 43.81 V C57
2018-10-14 16:14:40 s 1 -198248.88 0 +242348.79 1190.0 C57
2018-10-15 02:44:40 S 02 56 18.298 -48 17 01.93 V C57
2018-10-15 02:44:40 s 1 -205543.91 2 +208176.15 1360.0 C57
2018-10-15 04:44:40 S 02 55 35.772 -48 08 47.54 V C57
2018-10-15 04:44:40 s 1 -206492.55 9 +201197.30 7090.0 C57
2018-10-15 05:14:40 S 02 55 25.337 -48 06 40.93 V C57
2018-10-15 05:14:40 s 1 -206705.73 9 +199428.98 1760.0 C57
2018-10-15 05:44:40 S 02 55 15.190 -48 04 46.67 V C57