Pennell

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

All data for this body: [vot]

MPC data
Name (number) Pennell (20455)
a 2.32447
e 0.12879
i / sin(i) 6.7843 / 0.11813
q 2.02510
Q 2.62383
ω 144.3417
Node 136.6080
m 93.9718
n 0.2781
Epoch 2460800.5
nobs 2975
nopp 23
Years observed 1977-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.325
ep 0.112
sin(ip) 0.111
G 0.150
H 14.830
Mass
D 2.76 0.107
pV 0.336 0.0452
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 12.072
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
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-Nov-2024
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-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
14.83 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
V Bus VIS Solontoi 2012Icar..220..577S SPEC
V DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
V 0.39 Bus VIS Carvano 2010A&A...510A..43C PHOT
V V 0.7153 0.7153 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT