2013 HG20

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5757513553 ± 4.80e-07
Semi-major axis (a)2.1682458034 AU ± 2.13e-06
Inclination (i)4.17482697° ± 8.39e-06
Long. of Asc. Node (Ω)203.69070318° ± 4.46e-05
Arg. of Perihelion (ω)89.09706589° ± 4.25e-05
Mean Anomaly (M)308.30412515° ± 2.10e-03
Mean Motion (n)0.3087091517°/day ± 4.54e-07
Perihelion dist (q)0.91987534 AU ± 1.38e-06
Aphelion dist (Q)3.41661626 AU ± 3.51e-06
Orbital Period3.19273425 yr ± 4.70e-06
Physical Parameters
H (abs. magnitude)21.00
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.336″
Uncertainty1
Orbit TypeApollo
MOID0.053542 AU
Observations Used198
Radar Obs Used1
Oppositions1
Arc Total2013-2013
First Observation Used2013-04-30
Last Observation Used2013-10-30
Observations (208)
Date Type RA Dec Mag Band Observatory
2013-10-22 05:52:35 C 00 33 12.64 +03 58 22.9 q G96
2013-10-22 06:00:06 C 00 33 12.61 +03 58 20.2 q G96
2013-10-25 02:02:01 C 00 33 26.86 +03 36 34.6 o 691
2013-10-25 03:55:13 C 00 33 27.05 +03 36 01.4 o 691
2013-10-30 06:11:07 C 00 34 24.16 +03 07 22.2 q G96
2013-10-30 06:19:14 C 00 34 24.11 +03 07 20.7 q G96
2013-10-30 06:37:41 C 00 34 24.27 +03 07 17.2 q G96
2013-10-30 06:45:50 C 00 34 24.37 +03 07 15.7 q G96
Radar Observations (1)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
2013-09-11 05:08:00 -149663.3197 0.1 Hz 2380 -1 -1
Station codes
-1 Arecibo (305-m, 1963–2020)