1999 XB21

1999XB21, 1993 BV1, 1993BV1, 45048, J93B01V, J99X21B

All data for this body: [vot]

MPC data
Name (number) 1999 XB21 (45048)
a 2.37765
e 0.09081
i / sin(i) 4.9559 / 0.08639
q 2.16173
Q 2.59357
ω 359.3512
Node 71.7457
m 317.0810
n 0.2688
Epoch 2460800.5
nobs 1510
nopp 20
Years observed 1993-2024
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.378
ep 0.096
sin(ip) 0.072
G 0.150
H 15.630
Mass
D 2.52 0.698
pV 0.176 0.0813
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3780 0.0955 0.0718 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.52 0.698 0.698 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.176 0.0813 0.0813 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
15.63 MPC-2023-12-04 MPC-2023-12-04 Phot