2009 YY21

2009YY21, 2003 WD171, 2003WD171, K03WH1D, K09Y21Y, T6874

All data for this body: [vot]

MPC data
Name (number) 2009 YY21 (296874)
a 3.16981
e 0.23839
i / sin(i) 22.7092 / 0.38605
q 2.41416
Q 3.92547
ω 278.3267
Node 96.1931
m 319.7820
n 0.1746
Epoch 2460800.5
nobs 405
nopp 15
Years observed 2001-2025
rms 0.92
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.159
ep 0.189
sin(ip) 0.383
G 0.150
H 15.620
Mass
D 4.50 0.720
pV 0.050 0.0129
Value
Rotational Period
Period quality None
Spectral Class V
Spectral Class Score 0.462
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
702 Alauda 0 Alauda Novakovic 2019EPSC...13.1671N HCM
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1590 0.1891 0.3830 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.50 0.720 0.720 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.050 0.0129 0.0129 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
15.62 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 V 0.0770 0.0770 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT