1997 AT4

1997AT4, 11640, 1990 EJ3, 1990EJ3, J90E03J, J97A04T

All data for this body: [vot]

MPC data
Name (number) 1997 AT4 (11640)
a 2.38973
e 0.12144
i / sin(i) 5.1396 / 0.08958
q 2.09952
Q 2.67994
ω 88.3202
Node 299.4065
m 320.6154
n 0.2668
Epoch 2460800.5
nobs 4230
nopp 21
Years observed 1990-2025
rms 0.55
Best values
[raw, vot]

Value Standard error
Parent Vesta (4)
 
ap 2.390
ep 0.096
sin(ip) 0.103
G 0.150
H 14.760
Mass
D 3.39 0.122
pV 0.222 0.0200
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 2.208
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
4 Vesta 0 Vesta Novakovic 2019EPSC...13.1671N HCM
4 Vesta 401 Vesta Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3898 0.0957 0.1029 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.39 0.122 0.122 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.222 0.0200 0.0200 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
14.76 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
Q DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
QO 0.08 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.3680 0.3090 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
V S 0.2148 0.3090 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT