2003 YJ21

2003YJ21, 2002 VJ92, 2002VJ92, K02V92J, K03Y21J, N8309

All data for this body: [vot]

MPC data
Name (number) 2003 YJ21 (238309)
a 3.20433
e 0.22757
i / sin(i) 25.5778 / 0.43174
q 2.47513
Q 3.93353
ω 62.6732
Node 293.5312
m 351.4396
n 0.1718
Epoch 2460800.5
nobs 472
nopp 11
Years observed 2002-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent Euphrosyne (31)
 
ap 3.193
ep 0.209
sin(ip) 0.453
G 0.150
H 15.090
Mass
D 6.93 1.409
pV 0.036 0.0236
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.952
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
3.1929 0.2089 0.4533 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
6.28 2.017 2.017 Masiero 2011ApJ...741...68M NEATM
7.55 1.970 1.970 Masiero 2021PSJ.....2..162M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.031 0.0170 0.0370 Masiero 2021PSJ.....2..162M NEATM
0.054 0.0487 0.0487 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
15.09 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
C 0.992 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT