1991 FF

1991FF, 11890, J91F00F

All data for this body: [vot]

MPC data
Name (number) 1991 FF (11890)
a 3.23618
e 0.04453
i / sin(i) 17.7355 / 0.30462
q 3.09207
Q 3.38030
ω 218.0969
Node 337.1797
m 305.6158
n 0.1693
Epoch 2460800.5
nobs 3189
nopp 25
Years observed 1987-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.224
ep 0.088
sin(ip) 0.315
G 0.150
H 13.010
Mass
D 8.67 0.459
pV 0.163 0.0274
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.2236 0.0877 0.3148 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.67 0.459 0.459 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.163 0.0274 0.0274 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
13.01 MPC-2023-12-04 MPC-2023-12-04 Phot