1999RW218

1998HZ149, 1999NW8, 38418, J98HE9Z, J99N08W, J99RL8W

All data for this body: [vot]

MPC data
Name (number) 1999RW218 (38418)
Packed designation 38418
a 2.53469
e 0.08047
i / sin(i) 2.1476 / 0.03747
q 2.33071
Q 2.73867
ω 197.5820
Node 127.5741
m 195.7861
n 0.2442
Epoch 2459600.5
nobs 1134
nopp 19
Years observed 1998-2022
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.535
ep 0.055
sin(ip) 0.026
Value Standard error
G 0.150
H 15.140
Mass
D 2.58 0.538
pV 0.290 0.0935
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5346 0.0548 0.0260 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.58 0.538 0.538 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.290 0.0935 0.0935 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
15.14 MPC-2022-01-18 MPC-2022-01-18 Phot