2001 UK21

2001UK21, F9565, K01U21K

All data for this body: [vot]

MPC data
Name (number) 2001 UK21 (159565)
a 2.34921
e 0.15608
i / sin(i) 10.7389 / 0.18633
q 1.98254
Q 2.71588
ω 218.3906
Node 238.3560
m 126.1442
n 0.2737
Epoch 2460800.5
nobs 1136
nopp 16
Years observed 2001-2025
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.349
ep 0.198
sin(ip) 0.200
G 0.150
H 16.030
Mass
D 2.47 0.435
pV 0.167 0.0616
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.038
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3491 0.1980 0.1997 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.47 0.435 0.435 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.167 0.0616 0.0616 Masiero 2011ApJ...741...68M 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
16.03 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
C 0.673 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT