1981 QB3

1981QB3, 2000 EP188, 2000EP188, 42477, J81Q03B, K00EI8P

All data for this body: [vot]

MPC data
Name (number) 1981 QB3 (42477)
a 3.05754
e 0.27096
i / sin(i) 3.4725 / 0.06057
q 2.22907
Q 3.88601
ω 212.7079
Node 138.2874
m 63.5375
n 0.1844
Epoch 2460800.5
nobs 1485
nopp 24
Years observed 1981-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.048
ep 0.240
sin(ip) 0.043
G 0.150
H 14.500
Mass
D 6.75 0.160
pV 0.073 0.0080
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0482 0.2398 0.0426 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.75 0.161 0.161 Masiero 2011ApJ...741...68M NEATM
7.47 1.930 1.930 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.055 0.0360 0.0360 Masiero 2020PSJ.....1....5M NEATM
0.074 0.0082 0.0082 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
14.50 MPC-2023-12-04 MPC-2023-12-04 Phot