1998 EU

1998EU, 18633, 1990 WT9, 1990WT9, 1999 LU14, 1999LU14, J90W09T, J98E00U, J99L14U

All data for this body: [vot]

MPC data
Name (number) 1998 EU (18633)
a 3.16176
e 0.01013
i / sin(i) 9.1074 / 0.15829
q 3.12974
Q 3.19378
ω 105.2033
Node 180.0421
m 185.8319
n 0.1753
Epoch 2460800.5
nobs 1834
nopp 27
Years observed 1954-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.157
ep 0.041
sin(ip) 0.157
G 0.150
H 14.360
Mass
D 5.26 0.358
pV 0.160 0.0310
Value
Rotational Period
Period quality None
Spectral Class A
Spectral Class Score 5.317
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1569 0.0408 0.1573 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.26 0.358 0.358 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.160 0.0310 0.0310 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
14.36 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
A A 0.8861 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Ds Ad None None Movis NIR Popescu 2018A&A...617A..12P PHOT
L A 0.3249 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S A 0.2163 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S A 0.3333 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V A 0.2424 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X A 0.1542 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X A 0.4724 0.1350 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT