163295 (2002 HW)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6451811380 ± 1.65e-08
Semi-major axis (a)2.4618319779 AU ± 5.91e-09
Inclination (i)5.81479224° ± 4.30e-06
Long. of Asc. Node (Ω)32.32019694° ± 2.17e-05
Arg. of Perihelion (ω)77.67496517° ± 2.30e-05
Mean Anomaly (M)42.64322266° ± 1.30e-05
Mean Motion (n)0.2551670914°/day ± 9.19e-10
Perihelion dist (q)0.87350442 AU ± 4.07e-08
Aphelion dist (Q)4.05015954 AU ± 4.18e-08
Orbital Period3.86267006 yr ± 1.39e-08
Physical Parameters
H (abs. magnitude)19.49
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.361″
Uncertainty0
Orbit TypeApollo
MOID0.052220 AU
Observations Used194
Radar Obs Used2
Oppositions2
Arc Total2002-2005
First Observation Used2002-04-16
Last Observation Used2009-11-20
Observations (211)
Date Type RA Dec Mag Band Observatory
2006-04-07 07:09:38 C 13 56 38.01 -07 58 15.7 c 691
2006-04-23 20:47:53 C 13 28 07.03 -07 57 15.8 r A13
2006-04-23 21:17:48 C 13 28 05.45 -07 57 15.5 r A13
2009-09-20 11:31:51 C 05 01 44.83 +21 54 45.1 r G96
2009-09-20 11:43:36 C 05 01 47.10 +21 54 52.2 r G96
2009-09-20 11:49:24 C 05 01 48.21 +21 54 55.4 r G96
2009-09-22 10:23:26 C 05 11 08.84 +22 21 36.3 r G96
2009-09-22 10:31:28 C 05 11 10.50 +22 21 40.8 r G96
2009-09-22 10:48:05 C 05 11 13.81 +22 21 50.6 r G96
2009-11-20 12:18:33 C 11 49 59.26 +09 47 59.5 r G96
2009-11-20 12:35:03 C 11 50 02.76 +09 47 37.2 r G96
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2005-12-07 20:32:00 67469.8753 1 Hz 2380 -1 -1
2005-12-07 20:48:00 102204534.19 4 us 2380 -1 -1
2005-12-18 17:57:00 -27679.9929 1 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)