1981 UN22

1981UN22, 16396, 1966 CQ, 1966CQ, 1986 ET4, 1986ET4, 1989 AD2, 1989AD2, 1999 CT83, 1999CT83, J66C00Q, J81U22N, J86E04T, J89A02D, J99C83T

All data for this body: [vot]

MPC data
Name (number) 1981 UN22 (16396)
a 2.22182
e 0.09547
i / sin(i) 2.7046 / 0.04719
q 2.00971
Q 2.43393
ω 35.1880
Node 113.2970
m 135.1477
n 0.2976
Epoch 2460200.5
nobs 2563
nopp 23
Years observed 1966-2023
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.222
ep 0.148
sin(ip) 0.039
Value Standard error
G 0.150
H 14.780
Mass
D 2.61 0.542
pV 0.341 0.1829
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2222 0.1481 0.0388 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.61 0.542 0.542 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.341 0.1829 0.1829 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
14.78 MPC-2023-12-04 MPC-2023-12-04 Phot