1999 XB21

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

All data for this body: [vot]

MPC data
Name (number) 1999 XB21 (45048)
a 2.37851
e 0.09055
i / sin(i) 4.9557 / 0.08639
q 2.16313
Q 2.59388
ω 359.1325
Node 71.7475
m 156.0456
n 0.2687
Epoch 2460200.5
nobs 1353
nopp 19
Years observed 1993-2023
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.378
ep 0.096
sin(ip) 0.072
Value Standard error
G 0.150
H 15.640
Mass
D 2.52 0.698
pV 0.176 0.0813
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-Oct-2022
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
15.64 MPC-2023-12-04 MPC-2023-12-04 Phot