1999XW257

1990HF4, 1996RR30, 1997TK28, 1998WW40, 22049, J90H04F, J96R30R, J97T28K, J98W40W, J99XP7W

All data for this body: [vot]

MPC data
Name (number) 1999XW257 (22049)
Packed designation 22049
a 5.21699
e 0.06082
i / sin(i) 2.5771 / 0.04496
q 4.89971
Q 5.53426
ω 254.1366
Node 202.8109
m 280.2290
n 0.0827
Epoch 2459600.5
nobs 1342
nopp 24
Years observed 1990-2021
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
Value Standard error
G 0.150
H 11.850
Mass
D 0.02 0.048
pV 0.111 0.0200
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.02 0.048 0.048 Grav 2011ApJ...742...40G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.111 0.0200 0.0200 Grav 2011ApJ...742...40G 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
11.85 MPC-2022-01-18 MPC-2022-01-18 Phot