1981 WF9

1981WF9, 12216, 1988 TK2, 1988TK2, J81W09F, J88T02K

All data for this body: [vot]

MPC data
Name (number) 1981 WF9 (12216)
a 2.33908
e 0.13527
i / sin(i) 6.2417 / 0.10872
q 2.02268
Q 2.65548
ω 142.4920
Node 206.0832
m 102.2256
n 0.2755
Epoch 2460800.5
nobs 3195
nopp 22
Years observed 1981-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.338
ep 0.092
sin(ip) 0.118
G 0.150
H 14.760
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 5.446
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3383 0.0925 0.1180 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.76 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
S 0.13 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8215 0.4910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.9077 0.4910 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT