2009 UG21

2009UG21, K09U21G, W1584

All data for this body: [vot]

MPC data
Name (number) 2009 UG21 (321584)
a 5.12478
e 0.06254
i / sin(i) 10.5978 / 0.18391
q 4.80426
Q 5.44530
ω 10.7704
Node 67.5473
m 97.8174
n 0.0850
Epoch 2460800.5
nobs 381
nopp 14
Years observed 2002-2025
rms 0.84
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 13.550
Mass
D 10.22 1.270
pV 0.089 0.0300
Value
Rotational Period
Period quality None
Spectral Class D
Spectral Class Score 1.233
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.22 1.270 1.270 Grav 2011ApJ...742...40G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.089 0.0300 0.0300 Grav 2011ApJ...742...40G NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.55 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
D D 0.2055 0.2055 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT