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
2018-09-27 23:44:40 s 1 -120416.52 3 +354279.26 7710.0 C57
2018-09-28 00:14:40 S 05 30 14.959 -61 45 45.79 V C57
2018-09-28 00:14:40 s 1 -121417.68 1 +353780.71 8200.0 C57
2018-09-28 03:14:40 S 05 29 12.900 -61 43 49.26 V C57
2018-09-28 03:14:40 s 1 -127361.44 9 +350603.81 6590.0 C57
2018-09-28 05:14:40 S 05 28 30.970 -61 42 23.94 V C57
2018-09-28 05:14:40 s 1 -131261.71 5 +348309.33 9610.0 C57
2018-09-28 05:44:40 S 05 28 22.003 -61 42 02.41 V C57
2018-09-28 05:44:40 s 1 -132228.73 8 +347713.67 9780.0 C57
2018-09-28 08:44:40 S 05 27 19.961 -61 40 00.30 V C57
2018-09-28 08:44:40 s 1 -137961.07 3 +343954.74 8040.0 C57
2018-09-28 09:14:40 S 05 27 09.574 -61 39 41.58 V C57
2018-09-28 09:14:40 s 1 -138904.55 2 +343297.44 5710.0 C57
2018-09-28 09:44:40 S 05 26 59.390 -61 39 20.09 V C57
2018-09-28 09:44:40 s 1 -139844.54 9 +342631.34 6630.0 C57
2018-09-28 12:14:40 S 05 26 07.651 -61 37 33.82 V C57
2018-09-28 12:14:40 s 1 -144491.23 3 +339168.95 3900.0 C57
2018-09-28 13:14:40 S 05 25 46.978 -61 36 47.99 V C57
2018-09-28 13:14:40 s 1 -146324.46 0 +337722.46 9480.0 C57
2018-09-28 13:44:40 S 05 25 35.995 -61 36 24.91 V C57
2018-09-28 13:44:40 s 1 -147235.49 7 +336986.04 130.0 C57
2018-09-28 16:14:40 S 05 24 45.324 -61 34 37.09 V C57
2018-09-28 16:14:40 s 1 -151733.64 3 +333172.12 4920.0 C57
2018-09-28 17:14:40 S 05 24 24.799 -61 33 53.57 V C57
2018-09-28 17:14:40 s 1 -153505.68 5 +331585.06 1500.0 C57
2018-09-28 19:14:40 S 05 23 42.254 -61 32 19.54 V C57
2018-09-28 19:14:40 s 1 -157001.67 3 +328305.56 7980.0 C57
2018-09-28 19:44:40 S 05 23 32.938 -61 32 00.89 V C57
2018-09-28 19:44:40 s 1 -157865.45 6 +327463.72 6700.0 C57
2018-09-28 20:44:40 S 05 23 11.930 -61 31 12.00 V C57
2018-09-28 20:44:40 s 1 -159580.52 9 +325753.70 2350.0 C57
2018-09-28 22:14:40 S 05 22 39.653 -61 30 00.11 V C57
2018-09-28 22:14:40 s 1 -162121.39 1 +323122.79 8450.0 C57
2018-09-28 22:44:40 S 05 22 29.762 -61 29 39.73 V C57
2018-09-28 22:44:40 s 1 -162959.73 9 +322228.25 1070.0 C57
2018-09-28 23:14:40 S 05 22 19.642 -61 29 14.89 V C57
2018-09-28 23:14:40 s 1 -163793.72 7 +321324.93 2000.0 C57
2018-09-28 23:44:40 S 05 22 09.821 -61 28 56.06 V C57
2018-09-28 23:44:40 s 1 -164623.31 7 +320412.82 1020.0 C57
2018-09-29 01:44:40 S 05 21 27.946 -61 27 17.82 V C57
2018-09-29 01:44:40 s 1 -167896.99 5 +316676.48 4160.0 C57
2018-09-29 03:14:40 S 05 20 56.570 -61 26 07.62 V C57
2018-09-29 03:14:40 s 1 -170304.31 1 +313781.91 4200.0 C57
2018-09-29 03:44:40 S 05 20 46.596 -61 25 40.58 V C57
2018-09-29 03:44:40 s 1 -171097.41 9 +312799.46 760.0 C57
2018-09-29 05:14:40 S 05 20 14.714 -61 24 30.67 V C57
2018-09-29 05:14:40 s 1 -173448.22 4 +309799.34 7190.0 C57
2018-09-29 06:14:40 S 05 19 53.304 -61 23 35.92 V C57
2018-09-29 06:14:40 s 1 -174991.27 5 +307755.24 3260.0 C57
2018-09-29 06:44:40 S 05 19 43.654 -61 23 12.98 V C57