2001 AJ31

2001AJ31, 72251, K01A31J

All data for this body: [vot]

MPC data
Name (number) 2001 AJ31 (72251)
a 2.55519
e 0.14835
i / sin(i) 11.5608 / 0.20041
q 2.17612
Q 2.93427
ω 145.1922
Node 73.0976
m 246.6242
n 0.2413
Epoch 2460800.5
nobs 2357
nopp 20
Years observed 1999-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.553
ep 0.184
sin(ip) 0.182
G 0.150
H 14.490
Mass
D 3.41 0.076
pV 0.269 0.0310
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.314
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5530 0.1844 0.1824 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.24 0.183 0.183 Masiero 2011ApJ...741...68M NEATM
3.44 0.083 0.083 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.259 0.0371 0.0371 Masiero 2011ApJ...741...68M NEATM
0.293 0.0563 0.0563 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
14.49 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 0.719 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT