Balau

09289, 1981 QR3, 1981QR3, 1988 FV1, 1988FV1, 1994 TO3, 1994TO3, J81Q03R, J88F01V, J94T03O

All data for this body: [vot]

MPC data
Name (number) Balau (9289)
a 2.59826
e 0.15739
i / sin(i) 13.4773 / 0.23306
q 2.18932
Q 3.00719
ω 315.9982
Node 354.2257
m 176.1676
n 0.2353
Epoch 2460800.5
nobs 4633
nopp 25
Years observed 1964-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.599
ep 0.127
sin(ip) 0.236
G 0.150
H 13.380
Mass
D 6.28 0.049
pV 0.277 0.0144
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.902
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5985 0.1270 0.2360 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.06 0.160 0.160 Masiero 2012ApJ...759L...8M NEATM
6.30 0.052 0.052 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.274 0.0152 0.0152 Masiero 2011ApJ...741...68M NEATM
0.303 0.0450 0.0450 Masiero 2012ApJ...759L...8M 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
13.38 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
LS 0.68 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.8170 0.8170 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT