1981 EB18

1981EB18, 1998 KY41, 1998KY41, 39497, J81E18B, J98K41Y

All data for this body: [vot]

MPC data
Name (number) 1981 EB18 (39497)
a 2.58096
e 0.14690
i / sin(i) 4.0150 / 0.07002
q 2.20182
Q 2.96010
ω 59.2880
Node 174.7211
m 189.6029
n 0.2377
Epoch 2460800.5
nobs 1256
nopp 22
Years observed 1981-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.580
ep 0.208
sin(ip) 0.069
G 0.150
H 15.640
Mass
D 2.04 0.347
pV 0.353 0.2231
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 19.495
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5798 0.2076 0.0690 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.04 0.347 0.347 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.353 0.2231 0.2231 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
15.64 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 0.45 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.9194 0.9230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9208 0.9230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9256 0.9230 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT