1981 ET44

1981ET44, 1999 JH128, 1999JH128, 2000 WO78, 2000WO78, 37554, J81E44T, J99JC8H, K00W78O

All data for this body: [vot]

MPC data
Name (number) 1981 ET44 (37554)
a 2.31419
e 0.14797
i / sin(i) 5.5289 / 0.09635
q 1.97177
Q 2.65661
ω 15.1469
Node 287.7348
m 81.8466
n 0.2800
Epoch 2460800.5
nobs 1398
nopp 20
Years observed 1981-2024
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.314
ep 0.118
sin(ip) 0.107
G 0.150
H 16.050
Mass
D 1.42 0.329
pV 0.320 0.1657
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3143 0.1182 0.1071 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.42 0.329 0.329 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.320 0.1657 0.1657 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
16.05 MPC-2023-12-04 MPC-2023-12-04 Phot