1989TD4

1996FD25, 2006VM147, H8290, J89T04D, J96F25D, K06VE7M

All data for this body: [vot]

MPC data
Name (number) 1989TD4 (178290)
Packed designation H8290
a 2.59274
e 0.25652
i / sin(i) 4.1016 / 0.07153
q 1.92764
Q 3.25783
ω 266.2261
Node 82.1055
m 280.4486
n 0.2361
Epoch 2459600.5
nobs 677
nopp 16
Years observed 1989-2021
rms 0.53
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.593
ep 0.201
sin(ip) 0.055
Value Standard error
G 0.150
H 15.950
Mass
D 1.67 0.210
pV 0.337 0.0783
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5933 0.2012 0.0552 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.61 0.330 0.330 Masiero 2012ApJ...759L...8M NEATM
1.71 0.272 0.272 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.325 0.1180 0.1180 Masiero 2012ApJ...759L...8M NEATM
0.347 0.1047 0.1047 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.95 MPC-2022-01-18 MPC-2022-01-18 Phot