1981 FT

1981FT, 06627, 1978 GJ4, 1978GJ4, 1978 JX3, 1978JX3, 1992 UR9, 1992UR9, 1994 GU, 1994GU, J78G04J, J78J03X, J81F00T, J92U09R, J94G00U

All data for this body: [vot]

MPC data
Name (number) 1981 FT (6627)
a 2.17280
e 0.08303
i / sin(i) 3.9733 / 0.06929
q 1.99238
Q 2.35321
ω 117.3450
Node 60.4331
m 276.1528
n 0.3077
Epoch 2460800.5
nobs 4721
nopp 24
Years observed 1978-2025
rms 0.57
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.172
ep 0.150
sin(ip) 0.065
G 0.150
H 14.250
Mass
D 4.04 0.024
pV 0.236 0.0125
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 2.568
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1719 0.1502 0.0653 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.75 0.047 0.047 Masiero 2011ApJ...741...68M NEATM
4.14 0.028 0.028 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.224 0.0138 0.0138 Masiero 2011ApJ...741...68M NEATM
0.288 0.0289 0.0289 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
14.25 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
B 0.428 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT