IAA RAS IAA Minor Planet Database

2021 UW1

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5557863000
Semi-major axis (a)1.7463755000 AU
Inclination (i)2.23410000°
Long. of Asc. Node (Ω)219.14294000°
Arg. of Perihelion (ω)245.06942000°
Mean Anomaly (M)254.05555000°
Mean Motion (n)0.4270685900°/day
Perihelion dist (q)0.77576390 AU
Aphelion dist (Q)2.71698710 AU
Orbital Period2.30784400 yr
Physical Parameters
H (abs. magnitude)26.16
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date—
RMS Residual0.530″
Uncertainty6
Orbit TypeApollo
MOID0.001566 AU
Observations Used166
Oppositions1
Arc Total—
First Observation Used—
Last Observation Used2021-10-30
Observations (167)
Date Type RA Dec Mag Band Observatory
2021-10-30 16:49:00 C 20 56 03.06 +14 31 35.0 – V 246
2021-10-30 16:49:05 C 20 56 00.93 +14 31 29.9 – V 246
2021-10-30 16:49:10 C 20 55 58.78 +14 31 24.9 – V 246
2021-10-30 16:49:15 C 20 55 56.57 +14 31 19.9 – V 246
2021-10-30 17:54:49 C 20 27 05.22 +13 12 25.6 – V J95
2021-10-30 17:58:16 C 20 25 28.32 +13 07 49.3 – V J95
2021-10-30 18:00:26 C 20 24 26.86 +13 04 52.6 – V J95
2021-10-30 18:02:36 C 20 23 25.71 +13 01 55.9 – V J95
2021-10-30 18:04:52 C 20 22 21.44 +12 58 49.1 – V J95
2021-10-30 19:36:26 C 19 37 33.33 +10 32 36.7 – V J95
2021-10-30 19:39:11 C 19 36 11.12 +10 27 40.5 – V J95
2021-10-30 19:42:20 C 19 34 36.66 +10 21 58.0 – V J95
2021-10-30 19:46:56 C 19 32 16.86 +10 13 25.9 – V Z80
2021-10-30 19:48:43 C 19 31 25.44 +10 10 18.5 – V J95
2021-10-30 19:49:21 C 19 31 04.19 +10 08 58.5 – V Z80
2021-10-30 19:54:28 C 19 28 30.99 +09 59 30.8 – V Z80
2021-10-30 19:56:54 C 19 27 18.60 +09 55 01.9 – V Z80