Pennell

1977DM6, 1989TB10, 1999LE4, 20455, J77D06M, J89T10B, J99L04E

All data for this body: [vot]

MPC data
Name (number) Pennell (20455)
Packed designation 20455
a 2.32411
e 0.12952
i / sin(i) 6.7850 / 0.11814
q 2.02310
Q 2.62513
ω 144.4883
Node 136.6177
m 120.1168
n 0.2782
Epoch 2459600.5
nobs 2058
nopp 20
Years observed 1977-2022
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.325
ep 0.112
sin(ip) 0.111
Value Standard error
G 0.150
H 14.760
Mass
D 2.76 0.107
pV 0.336 0.0452
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
2.3249 0.1123 0.1106 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.76 0.107 0.107 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.336 0.0452 0.0452 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
14.76 MPC-2022-01-18 MPC-2022-01-18 Phot