2020 HW1

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7961368450 ± 1.68e-07
Semi-major axis (a)1.9717730685 AU ± 7.98e-07
Inclination (i)23.30866533° ± 6.35e-05
Long. of Asc. Node (Ω)164.88582484° ± 2.27e-04
Arg. of Perihelion (ω)185.29926611° ± 2.41e-04
Mean Anomaly (M)338.46166620° ± 4.35e-04
Mean Motion (n)0.3559810506°/day ± 2.16e-07
Perihelion dist (q)0.40197188 AU ± 3.69e-07
Aphelion dist (Q)3.54157426 AU ± 1.47e-06
Orbital Period2.76876053 yr ± 1.68e-06
Physical Parameters
H (abs. magnitude)19.38
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.267″
Uncertainty0
Orbit TypeApollo
MOID0.359288 AU
Observations Used112
Oppositions2
Arc Total2017-2020
First Observation Used2017-12-30
Last Observation Used2020-05-20
Observations (113)
Date Type RA Dec Mag Band Observatory
2020-05-13 10:06:44 C 16 23 55.26 +61 24 32.5 V I52
2020-05-13 10:07:20 C 16 23 55.24 +61 24 35.1 V I52
2020-05-13 10:07:57 C 16 23 55.18 +61 24 37.7 V I52
2020-05-14 12:52:33 C 16 22 48.970 +63 26 56.72 U F51
2020-05-14 13:00:59 C 16 22 48.479 +63 27 34.76 U F51
2020-05-15 10:33:48 C 16 21 44.55 +65 07 25.3 V I52
2020-05-15 10:36:13 C 16 21 44.38 +65 07 36.7 V I52
2020-05-15 10:38:37 C 16 21 44.28 +65 07 47.8 V I52
2020-05-15 10:39:13 C 16 21 44.23 +65 07 50.7 V I52
2020-05-20 09:32:55 C 16 10 56.40 +74 37 59.6 V I52
2020-05-20 09:36:36 C 16 10 55.78 +74 38 17.7 V I52
2020-05-20 09:37:12 C 16 10 55.72 +74 38 20.4 V I52
2020-05-20 09:37:49 C 16 10 55.56 +74 38 23.4 V I52