1999 XS204

1999XS204, 1972 HG, 1972HG, 29989, J72H00G, J99XK4S

All data for this body: [vot]

MPC data
Name (number) 1999 XS204 (29989)
a 2.59456
e 0.23305
i / sin(i) 12.1206 / 0.20997
q 1.98989
Q 3.19923
ω 246.6998
Node 38.9443
m 65.0580
n 0.2358
Epoch 2460200.5
nobs 3042
nopp 22
Years observed 1972-2023
rms 0.57
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 13.550
Mass
D 5.21 0.024
pV 0.413 0.0308
Rotational Period 19.719
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-Oct-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-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.55 MPC-2023-12-04 MPC-2023-12-04 Phot
Period data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
19.72 Durech 2023A&A...675A..24D Model