1991 TF4

1991TF4, 06727, 1978 TU3, 1978TU3, 1982 OK1, 1982OK1, J78T03U, J82O01K, J91T04F

All data for this body: [vot]

MPC data
Name (number) 1991 TF4 (6727)
a 2.63739
e 0.21082
i / sin(i) 3.1965 / 0.05576
q 2.08138
Q 3.19339
ω 23.0419
Node 15.8510
m 298.9016
n 0.2301
Epoch 2460800.5
nobs 4471
nopp 26
Years observed 1978-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.636
ep 0.176
sin(ip) 0.056
G 0.150
H 14.260
Mass
D 8.85 0.046
pV 0.111 0.0127
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 3.191
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6364 0.1760 0.0556 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.19 2.270 2.270 Masiero 2020PSJ.....1....5M NEATM
7.74 1.670 1.670 Masiero 2020PSJ.....1....5M NEATM
8.15 2.624 2.624 Masiero 2017AJ....154..168M NEATM
8.85 0.046 0.046 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.073 0.0407 0.0407 Masiero 2017AJ....154..168M NEATM
0.081 0.0490 0.0490 Masiero 2020PSJ.....1....5M NEATM
0.094 0.0850 0.0850 Masiero 2020PSJ.....1....5M NEATM
0.118 0.0141 0.0141 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
14.26 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
X X 0.5318 0.5318 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT