2005 ET221

2005ET221, 1999 CY134, 1999CY134, J99CD4Y, K05EM1T, N1029

All data for this body: [vot]

MPC data
Name (number) 2005 ET221 (231029)
a 3.17488
e 0.23077
i / sin(i) 23.6203 / 0.40068
q 2.44221
Q 3.90755
ω 91.8059
Node 324.9311
m 287.4319
n 0.1742
Epoch 2460800.5
nobs 618
nopp 13
Years observed 1999-2025
rms 0.87
Best values
[raw, vot]

Value Standard error
Parent Euphrosyne (31)
 
ap 3.173
ep 0.179
sin(ip) 0.430
G 0.150
H 15.120
Mass
D 5.76 0.123
pV 0.064 0.0097
Value
Rotational Period
Period quality None
Spectral Class X
Spectral Class Score 2.005
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
31 Euphrosyne 0 Euphrosyne Novakovic 2019EPSC...13.1671N HCM
31 Euphrosyne 901 Euphrosyne Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1729 0.1793 0.4298 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.76 0.123 0.123 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.064 0.0097 0.0097 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
15.12 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
X X 0.3342 0.3342 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT