2012 XK21

2012XK21, K12X21K, s2137

All data for this body: [vot]

MPC data
Name (number) 2012 XK21 (542137)
a 2.25493
e 0.05500
i / sin(i) 7.9536 / 0.13837
q 2.13090
Q 2.37896
ω 57.2100
Node 67.7178
m 187.0942
n 0.2911
Epoch 2460800.5
nobs 208
nopp 8
Years observed 2012-2025
rms 0.88
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.254
ep 0.111
sin(ip) 0.127
G 0.150
H 17.800
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2543 0.1114 0.1268 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
17.80 MPC-2023-12-04 MPC-2023-12-04 Phot