2001 WW21

2001WW21, B1199, K01W21W

All data for this body: [vot]

MPC data
Name (number) 2001 WW21 (111199)
a 2.88934
e 0.07571
i / sin(i) 13.8507 / 0.23939
q 2.67059
Q 3.10809
ω 202.6562
Node 92.9542
m 264.6494
n 0.2007
Epoch 2460200.5
nobs 1060
nopp 18
Years observed 2001-2023
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent San Marcello (7481)
 
ap 2.889
ep 0.077
sin(ip) 0.219
Value Standard error
G 0.150
H 14.760
Mass
D 4.69 0.246
pV 0.127 0.0125
Rotational Period
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
7481 San Marcello 626 SanMarcello Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8895 0.0773 0.2190 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.69 0.246 0.246 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.127 0.0125 0.0125 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
14.76 MPC-2023-12-04 MPC-2023-12-04 Phot