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
2018-09-26 22:44:41 s 1 -67177.045 0 +367818.48 6640.0 C57
2018-09-26 23:14:40 S 05 38 38.654 -62 00 14.36 V C57
2018-09-26 23:14:40 s 1 -68292.260 0 +367769.21 500.0 C57
2018-09-26 23:44:40 S 05 38 29.141 -61 59 58.27 V C57
2018-09-26 23:44:40 s 1 -69405.832 0 +367710.77 180.0 C57
2018-09-27 00:14:41 S 05 38 19.951 -61 59 47.80 V C57
2018-09-27 00:14:41 s 1 -70517.735 0 +367643.17 5870.0 C57
2018-09-27 01:44:41 S 05 37 49.325 -61 58 57.11 V C57
2018-09-27 01:44:41 s 1 -73843.172 0 +367385.47 500.0 C57
2018-09-27 02:14:40 S 05 37 38.110 -61 58 40.69 V C57
2018-09-27 02:14:40 s 1 -74948.141 0 +367281.31 1770.0 C57
2018-09-27 02:44:40 S 05 37 29.719 -61 58 25.68 V C57
2018-09-27 02:44:40 s 1 -76051.312 0 +367168.03 9830.0 C57
2018-09-27 03:14:41 S 05 37 18.814 -61 58 07.79 V C57
2018-09-27 03:14:41 s 1 -77152.660 0 +367045.64 4850.0 C57
2018-09-27 06:14:41 S 05 36 19.231 -61 56 31.27 V C57
2018-09-27 06:14:41 s 1 -83720.995 0 +366120.55 9890.0 C57
2018-09-27 06:44:40 S 05 36 09.665 -61 56 16.37 V C57
2018-09-27 06:44:40 s 1 -84808.852 0 +365934.65 8030.0 C57
2018-09-27 07:14:40 S 05 35 58.752 -61 56 00.06 V C57
2018-09-27 07:14:40 s 1 -85894.678 0 +365739.71 4380.0 C57
2018-09-27 09:14:41 S 05 35 19.546 -61 54 52.27 V C57
2018-09-27 09:14:41 s 1 -90217.161 0 +364869.69 5160.0 C57
2018-09-27 10:14:40 S 05 34 59.722 -61 54 20.74 V C57
2018-09-27 10:14:40 s 1 -92365.546 0 +364380.63 3960.0 C57
2018-09-27 12:44:40 S 05 34 07.788 -61 52 52.25 V C57
2018-09-27 12:44:40 s 1 -97697.341 0 +363000.80 8190.0 C57
2018-09-27 13:14:40 S 05 33 57.958 -61 52 37.56 V C57
2018-09-27 13:14:40 s 1 -98756.776 0 +362697.93 930.0 C57
2018-09-27 13:44:41 S 05 33 49.066 -61 52 19.27 V C57
2018-09-27 13:44:41 s 1 -99813.843 0 +362386.12 3410.0 C57
2018-09-27 14:14:40 S 05 33 37.855 -61 52 01.34 V C57
2018-09-27 14:14:40 s 1 -100868.51 5 +362065.36 5470.0 C57
2018-09-27 16:14:40 S 05 32 57.322 -61 50 45.64 V C57
2018-09-27 16:14:40 s 1 -105062.72 3 +360693.01 6380.0 C57
2018-09-27 16:44:41 S 05 32 47.316 -61 50 28.79 V C57
2018-09-27 16:44:41 s 1 -106105.02 4 +360327.62 3990.0 C57
2018-09-27 17:14:40 S 05 32 37.834 -61 50 13.20 V C57
2018-09-27 17:14:40 s 1 -107144.77 0 +359953.31 240.0 C57
2018-09-27 19:14:40 S 05 31 56.638 -61 48 56.88 V C57
2018-09-27 19:14:40 s 1 -111277.68 1 +358367.11 8410.0 C57
2018-09-27 19:44:41 S 05 31 45.804 -61 48 38.12 V C57
2018-09-27 19:44:41 s 1 -112304.25 6 +357948.33 5460.0 C57
2018-09-27 20:14:40 S 05 31 35.820 -61 48 11.70 V C57
2018-09-27 20:14:40 s 1 -113327.80 3 +357521.15 2550.0 C57
2018-09-27 22:44:40 S 05 30 44.568 -61 46 43.97 V C57
2018-09-27 22:44:40 s 1 -118405.43 1 +355249.81 6080.0 C57
2018-09-27 23:14:40 S 05 30 34.622 -61 46 25.36 V C57
2018-09-27 23:14:40 s 1 -119412.43 0 +354768.96 3610.0 C57
2018-09-27 23:44:40 S 05 30 25.243 -61 46 04.22 V C57