Colas

09553, 1985 UG2, 1985UG2, 1990 EB8, 1990EB8, J85U02G, J90E08B

All data for this body: [vot]

MPC data
Name (number) Colas (9553)
a 2.19876
e 0.11699
i / sin(i) 1.9221 / 0.03354
q 1.94153
Q 2.45600
ω 252.9055
Node 149.8702
m 35.0011
n 0.3023
Epoch 2460800.5
nobs 5509
nopp 25
Years observed 1954-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.199
ep 0.113
sin(ip) 0.040
G 0.150
H 14.470
Mass
D 3.71 0.111
pV 0.189 0.0209
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 53.681
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1985 0.1125 0.0395 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.57 0.180 0.180 Masiero 2011ApJ...741...68M NEATM
3.79 0.141 0.141 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.178 0.0292 0.0292 Masiero 2011ApJ...741...68M NEATM
0.200 0.0298 0.0298 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
14.47 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
V Bus-DeMeo NIR Moskovitz 2010Icar..208..773M SPEC
V Bus VIS Roig 2006Icar..183..411R PHOT
V Bus VIS Solontoi 2012Icar..220..577S SPEC
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V 0.74 Bus VIS Carvano 2010A&A...510A..43C PHOT
V 0.867 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
V 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
V 1.000000 Mahlke VISNIR Mahlke 2022A&A...665A..26M SPEC
V V 0.9998 0.9998 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Vp Carvano NIR Hardersen 2015ApJS..221...19H SPEC