Keay

05007, 1981 TT2, 1981TT2, 1989 KH, 1989KH, 1990 UH2, 1990UH2, J81T02T, J89K00H, J90U02H

All data for this body: [vot]

MPC data
Name (number) Keay (5007)
a 2.67833
e 0.18779
i / sin(i) 13.3580 / 0.23103
q 2.17536
Q 3.18129
ω 161.5508
Node 168.9635
m 3.7994
n 0.2249
Epoch 2460800.5
nobs 3473
nopp 29
Years observed 1975-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.679
ep 0.158
sin(ip) 0.221
G 0.150
H 13.190
Mass
D 7.31 0.257
pV 0.251 0.0440
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 12.272
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 0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6787 0.1581 0.2214 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.31 0.257 0.257 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.251 0.0440 0.0440 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
13.19 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 0.74 Bus VIS Carvano 2010A&A...510A..43C PHOT
L S 0.5260 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.7120 0.5490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT