Keinonen

10489, 1975TB5, 1985TJ1, 1990QA5, J75T05B, J85T01J, J90Q05A

All data for this body: [vot]

MPC data
Name (number) Keinonen (10489)
Packed designation 10489
a 3.00751
e 0.09034
i / sin(i) 10.9117 / 0.18930
q 2.73580
Q 3.27922
ω 294.2149
Node 25.9714
m 25.4372
n 0.1890
Epoch 2459600.5
nobs 2593
nopp 24
Years observed 1975-2021
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.006
ep 0.065
sin(ip) 0.185
Value Standard error
G 0.150
H 12.430
Mass
D 11.22 0.122
pV 0.152 0.0237
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0059 0.0650 0.1852 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
11.22 0.122 0.122 Masiero 2011ApJ...741...68M NEATM
12.30 1.390 1.390 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.140 0.0570 0.0570 Masiero 2012ApJ...759L...8M NEATM
0.154 0.0260 0.0260 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
12.43 MPC-2022-01-18 MPC-2022-01-18 Phot