1999XS204

1972HG, 29989, J72H00G, J99XK4S

All data for this body: [vot]

MPC data
Name (number) 1999XS204 (29989)
Packed designation 29989
a 2.59380
e 0.23292
i / sin(i) 12.1193 / 0.20995
q 1.98965
Q 3.19795
ω 246.5341
Node 38.9469
m 283.6295
n 0.2359
Epoch 2459600.5
nobs 2211
nopp 21
Years observed 1972-2022
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.593
ep 0.214
sin(ip) 0.209
Value Standard error
G 0.150
H 13.510
Mass
D 5.21 0.024
pV 0.413 0.0308
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5934 0.2145 0.2087 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.78 0.050 0.050 Masiero 2014ApJ...791..121M NEATM
5.34 0.027 0.027 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.358 0.0482 0.0482 Masiero 2011ApJ...741...68M NEATM
0.450 0.0400 0.0400 Masiero 2014ApJ...791..121M 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
13.51 MPC-2022-01-18 MPC-2022-01-18 Phot