1998FG121

1991PW19, 1999TO126, 39957, J91P19W, J98FC1G, J99TC6O

All data for this body: [vot]

MPC data
Name (number) 1998FG121 (39957)
Packed designation 39957
a 2.42709
e 0.20832
i / sin(i) 3.7903 / 0.06610
q 1.92149
Q 2.93269
ω 288.7007
Node 340.2527
m 46.8612
n 0.2607
Epoch 2459600.5
nobs 846
nopp 18
Years observed 1991-2021
rms 0.56
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.427
ep 0.205
sin(ip) 0.078
Value Standard error
G 0.150
H 15.650
Mass
D 2.41 0.113
pV 0.254 0.0581
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4272 0.2047 0.0778 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.41 0.113 0.113 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.254 0.0581 0.0581 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
15.65 MPC-2022-01-18 MPC-2022-01-18 Phot