1981 EX23

1981EX23, 27688, J81E23X

All data for this body: [vot]

MPC data
Name (number) 1981 EX23 (27688)
a 2.77608
e 0.09160
i / sin(i) 2.3156 / 0.04040
q 2.52179
Q 3.03037
ω 36.4224
Node 253.8722
m 87.7521
n 0.2131
Epoch 2460800.5
nobs 1463
nopp 22
Years observed 1977-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.777
ep 0.090
sin(ip) 0.058
G 0.150
H 15.030
Mass
D 2.78 0.436
pV 0.301 0.1405
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 5.328
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7773 0.0900 0.0583 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.78 0.436 0.436 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.301 0.1405 0.1405 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
15.03 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
S 0.888 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT