1981 ED18

1981ED18, 1998 WQ22, 1998WQ22, 26085, J81E18D, J98W22Q

All data for this body: [vot]

MPC data
Name (number) 1981 ED18 (26085)
a 2.84764
e 0.03487
i / sin(i) 2.6421 / 0.04610
q 2.74835
Q 2.94692
ω 10.8229
Node 193.3762
m 37.8643
n 0.2051
Epoch 2460800.5
nobs 2992
nopp 22
Years observed 1981-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.847
ep 0.072
sin(ip) 0.053
G 0.150
H 14.150
Mass
D 5.92 0.179
pV 0.103 0.0107
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 14.837
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8473 0.0720 0.0528 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.61 0.285 0.285 Masiero 2011ApJ...741...68M NEATM
6.12 0.230 0.230 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.099 0.0123 0.0123 Masiero 2011ApJ...741...68M NEATM
0.117 0.0220 0.0220 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
14.15 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 0.567 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C X 0.5724 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D X 0.2490 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
D X 0.6235 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
L X 0.4557 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S X 0.5378 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.1036 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.1430 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.4001 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5016 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.5610 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.7636 0.2980 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT