1998 YV21

1998YV21, 2001 OA56, 2001OA56, 56075, J98Y21V, K01O56A

All data for this body: [vot]

MPC data
Name (number) 1998 YV21 (56075)
a 2.67635
e 0.12231
i / sin(i) 12.1172 / 0.20991
q 2.34901
Q 3.00369
ω 282.6571
Node 296.6801
m 279.4732
n 0.2251
Epoch 2460800.5
nobs 3111
nopp 22
Years observed 1991-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.676
ep 0.145
sin(ip) 0.232
G 0.150
H 14.020
Mass
D 4.69 0.185
pV 0.266 0.0313
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 18.043
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia 0.3000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6759 0.1448 0.2316 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.69 0.185 0.185 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.266 0.0313 0.0313 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
14.02 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
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.90 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5224 0.8860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.8541 0.8860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9973 0.8860 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT