1999 AS21

1999AS21, 1991 VN6, 1991VN6, 35680, J91V06N, J99A21S

All data for this body: [vot]

MPC data
Name (number) 1999 AS21 (35680)
a 2.19750
e 0.05509
i / sin(i) 6.5868 / 0.11471
q 2.07644
Q 2.31855
ω 297.1783
Node 135.2376
m 258.8459
n 0.3026
Epoch 2460200.5
nobs 2218
nopp 18
Years observed 1991-2023
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.198
ep 0.107
sin(ip) 0.118
Value Standard error
G 0.150
H 15.430
Mass
D 1.94 0.531
pV 0.355 0.1901
Rotational Period
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1979 0.1072 0.1184 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.94 0.531 0.531 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.355 0.1901 0.1901 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
15.43 MPC-2023-12-04 MPC-2023-12-04 Phot