1999 XD98

1999XD98, 1998 MK21, 1998MK21, 43144, J98M21K, J99X98D

All data for this body: [vot]

MPC data
Name (number) 1999 XD98 (43144)
a 2.57027
e 0.22157
i / sin(i) 12.1085 / 0.20977
q 2.00078
Q 3.13976
ω 104.2097
Node 261.4537
m 326.0421
n 0.2392
Epoch 2460200.5
nobs 1877
nopp 20
Years observed 1998-2023
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.570
ep 0.168
sin(ip) 0.235
Value Standard error
G 0.150
H 14.510
Mass
D 3.37 0.398
pV 0.325 0.0521
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5704 0.1679 0.2348 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.10 0.620 0.620 Nugent 2016AJ....152...63N NEATM
3.57 0.520 0.520 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.260 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM
0.349 0.0611 0.0611 Masiero 2011ApJ...741...68M 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
14.51 MPC-2023-12-04 MPC-2023-12-04 Phot