1997 UK21

1997UK21, 1976 UM10, 1976UM10, 27981, J76U10M, J97U21K

All data for this body: [vot]

MPC data
Name (number) 1997 UK21 (27981)
a 2.58951
e 0.16393
i / sin(i) 4.0577 / 0.07076
q 2.16501
Q 3.01400
ω 73.1870
Node 23.2703
m 184.1996
n 0.2365
Epoch 2460800.5
nobs 2730
nopp 20
Years observed 1976-2025
rms 0.69
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.589
ep 0.150
sin(ip) 0.069
G 0.150
H 14.320
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 27.883
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5887 0.1498 0.0686 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.32 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.97 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5355 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.5399 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9205 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9959 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9987 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.2588 0.5550 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT