1997AK21

07540, 1970CO, 1976UL2, 1979OW11, 1986HE, 1987QX12, 1992WA9, J70C00O, J76U02L, J79O11W, J86H00E, J87Q12X, J92W09A, J97A21K

All data for this body: [vot]

MPC data
Name (number) 1997AK21 (7540)
Packed designation 07540
a 2.46145
e 0.07729
i / sin(i) 5.2691 / 0.09183
q 2.27119
Q 2.65170
ω 301.8410
Node 216.3865
m 140.7164
n 0.2552
Epoch 2459600.5
nobs 2711
nopp 24
Years observed 1970-2021
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.460
ep 0.111
sin(ip) 0.103
Value Standard error
G 0.150
H 13.370
Mass
D 5.68 0.160
pV 0.287 0.0841
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4604 0.1110 0.1033 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.68 0.160 0.160 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.287 0.0841 0.0841 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.37 MPC-2022-01-18 MPC-2022-01-18 Phot