1999 VY2

1999VY2, 1998 ME31, 1998ME31, 43018, J98M31E, J99V02Y

All data for this body: [vot]

MPC data
Name (number) 1999 VY2 (43018)
a 2.81237
e 0.16926
i / sin(i) 7.8505 / 0.13659
q 2.33636
Q 3.28839
ω 121.6375
Node 271.6982
m 163.9073
n 0.2090
Epoch 2460800.5
nobs 2432
nopp 22
Years observed 1991-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent Gefion (1272)
 
ap 2.813
ep 0.134
sin(ip) 0.158
G 0.150
H 13.960
Mass
D 4.60 0.361
pV 0.364 0.1432
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 11.496
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1272 Gefion 0 Gefion Novakovic 2019EPSC...13.1671N HCM
1272 Gefion 516 Gefion 0.6900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8127 0.1337 0.1583 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.60 0.361 0.361 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.364 0.1432 0.1432 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
13.96 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
L L 0.7441 0.5560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
LS 0.26 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.949 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S L 0.6336 0.5560 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT