2020 HW3

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5467579000
Semi-major axis (a)1.1572916000 AU
Inclination (i)45.81778000°
Long. of Asc. Node (Ω)213.89858000°
Arg. of Perihelion (ω)114.70483000°
Mean Anomaly (M)124.40412000°
Mean Motion (n)0.7916620900°/day
Perihelion dist (q)0.52453330 AU
Aphelion dist (Q)1.79004990 AU
Orbital Period1.24498520 yr
Physical Parameters
H (abs. magnitude)22.10
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.660″
Uncertainty6
Orbit TypeApollo
MOID0.033312 AU
Observations Used160
Radar Obs Used3
Oppositions1
Arc Total
First Observation Used
Last Observation Used2020-04-27
Observations (160)
Date Type RA Dec Mag Band Observatory
2020-04-26 02:13:56 C 17 18 23.48 +57 48 09.2 V K87
2020-04-26 02:15:48 C 17 18 26.09 +57 49 35.1 V K87
2020-04-26 02:18:24 C 17 18 29.80 +57 51 35.1 V K87
2020-04-26 08:47:00 C 17 29 06.88 +62 33 41.9 V I52
2020-04-26 08:47:43 C 17 29 08.12 +62 34 11.0 V I52
2020-04-26 08:48:03 C 17 29 08.71 +62 34 25.8 V I52
2020-04-27 08:31:56 C 18 30 10.76 +75 08 27.4 V V01
2020-04-27 09:17:58 C 18 32 56.63 +75 26 32.0 V V01
2020-04-27 10:03:02 C 18 35 42.60 +75 43 47.7 V V01
2020-04-27 10:47:59 C 18 38 31.62 +76 00 35.4 V V01
Radar Observations (3)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2020-04-24 05:36:00 107099.4148 0.5 Hz 2380 -1 -1
2020-04-24 05:50:00 104906.4133 0.15 Hz 2380 -1 -1
2020-04-24 06:06:00 36677203.46 4 us 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)