Sobers

06581, 1981 SO, 1981SO, 1990 EL5, 1990EL5, J81S00O, J90E05L

All data for this body: [vot]

MPC data
Name (number) Sobers (6581)
a 2.29876
e 0.11990
i / sin(i) 6.0061 / 0.10463
q 2.02314
Q 2.57438
ω 357.7704
Node 350.4569
m 198.0430
n 0.2828
Epoch 2460800.5
nobs 4190
nopp 25
Years observed 1981-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.299
ep 0.076
sin(ip) 0.103
G 0.150
H 13.430
Mass
D 5.63 0.071
pV 0.315 0.0313
Value
Rotational Period 6.633
Period quality 3
Spectral Class V
Spectral Class Score 4.774
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2992 0.0756 0.1032 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.61 0.076 0.076 Masiero 2011ApJ...741...68M NEATM
5.72 0.200 0.200 Masiero 2014ApJ...791..121M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.310 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM
0.323 0.0502 0.0502 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
13.43 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
6.6338 3 Synodic Pravec LCDB Lightcurve
6.63462 2 Sidereal Durech 2018A&A...617A..57D Model
6.63468 2 Sidereal Durech 2020A&A...643A..59D Model
6.6347 2 Sidereal Durech 2023A&A...675A..24D Model
6.64 2 Synodic Yeh 2020AJ....160...73Y Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V Popescu NIR Mansour 2020MNRAS.491.5966M SPEC+PHOT
V 0.629 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V V None None Movis NIR Popescu 2018A&A...617A..12P PHOT