Alex

03367, 1953 XM, 1953XM, 1971 SH2, 1971SH2, 1981 UQ9, 1981UQ9, 1981 UW15, 1981UW15, 1983 CA3, 1983CA3, J53X00M, J71S02H, J81U09Q, J81U15W, J83C03A

All data for this body: [vot]

MPC data
Name (number) Alex (3367)
a 2.78530
e 0.06461
i / sin(i) 5.3285 / 0.09287
q 2.60535
Q 2.96525
ω 238.4515
Node 257.8604
m 53.2144
n 0.2120
Epoch 2460800.5
nobs 4831
nopp 32
Years observed 1953-2025
rms 0.65
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.785
ep 0.095
sin(ip) 0.112
G 0.150
H 12.460
Mass
D 10.93 0.109
pV 0.108 0.0124
Value
Rotational Period 9.000
Period quality 1
Spectral Class X
Spectral Class Score 5.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7852 0.0947 0.1116 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.19 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM
16.96 1.110 1.110 Usui 2011PASJ...63.1117U NEATM
17.19 3.440 3.440 Ali-Lagoa 2018A&A...612A..85A NEATM
9.61 0.124 0.124 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.077 0.0310 0.0310 Ali-Lagoa 2018A&A...612A..85A NEATM
0.101 0.0140 0.0140 Masiero 2012ApJ...759L...8M NEATM
0.303 0.0538 0.0538 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
12.46 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.6 1 Synodic Behrend LCDB Lightcurve
9.6 1 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S M 0.780000 0.210000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
X Bus VIS Bus 2002Icar..158..146B SPEC
Xt Ds None None Movis NIR Popescu 2018A&A...617A..12P PHOT