Libby

05672, 1956 EW, 1956EW, 1980 RP4, 1980RP4, 1984 UW4, 1984UW4, 1986 EE2, 1986EE2, 1991 PM18, 1991PM18, J56E00W, J80R04P, J84U04W, J86E02E, J91P18M

All data for this body: [vot]

MPC data
Name (number) Libby (5672)
a 2.40982
e 0.05275
i / sin(i) 10.2292 / 0.17759
q 2.28271
Q 2.53694
ω 355.5440
Node 171.7138
m 172.8174
n 0.2635
Epoch 2460800.5
nobs 6284
nopp 27
Years observed 1956-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.410
ep 0.102
sin(ip) 0.179
G 0.150
H 13.230
Mass
D 7.13 0.151
pV 0.229 0.0210
Value
Rotational Period 131.050
Period quality 2
Spectral Class S
Spectral Class Score 5.724
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4102 0.1020 0.1788 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.60 0.201 0.201 Masiero 2011ApJ...741...68M NEATM
7.81 0.230 0.230 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.183 0.0290 0.0290 Masiero 2012ApJ...759L...8M NEATM
0.281 0.0304 0.0304 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
13.23 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
129.391 2 Sidereal Durech 2020A&A...643A..59D Model
129.41 2 Sidereal Durech 2023A&A...675A..24D Model
131.056 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
34.956 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.954 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT