Koyo

05591, 1981 WG8, 1981WG8, 1985 PW1, 1985PW1, 1987 BG3, 1987BG3, 1990 VF2, 1990VF2, J81W08G, J85P01W, J87B03G, J90V02F

All data for this body: [vot]

MPC data
Name (number) Koyo (5591)
a 2.77903
e 0.08691
i / sin(i) 4.2407 / 0.07395
q 2.53750
Q 3.02056
ω 190.1059
Node 188.0455
m 173.2146
n 0.2127
Epoch 2460800.5
nobs 4219
nopp 28
Years observed 1981-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent Hoffmeister (1726)
 
ap 2.780
ep 0.049
sin(ip) 0.076
G 0.150
H 13.350
Mass
D 16.95 0.213
pV 0.039 0.0046
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 5.756
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
1726 Hoffmeister 0 Hoffmeister Novakovic 2019EPSC...13.1671N HCM
1726 Hoffmeister 519 Hoffmeister -0.9300 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7800 0.0487 0.0759 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.33 3.800 3.800 Nugent 2016AJ....152...63N NEATM
12.40 3.900 3.900 Masiero 2020PSJ.....1....5M NEATM
13.24 3.340 3.340 Masiero 2021PSJ.....2..162M NEATM
14.73 1.200 1.200 Usui 2011PASJ...63.1117U NEATM
15.11 3.020 3.020 Ali-Lagoa 2018A&A...612A..85A NEATM
17.07 0.218 0.218 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.038 0.0049 0.0049 Masiero 2011ApJ...741...68M NEATM
0.043 0.0170 0.0170 Ali-Lagoa 2018A&A...612A..85A NEATM
0.050 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM
0.054 0.0230 0.0400 Masiero 2021PSJ.....2..162M NEATM
0.060 0.0520 0.0520 Masiero 2020PSJ.....1....5M 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
13.35 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 0.151 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
C 0.970000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Cb Bus VIS Bus 2002Icar..158..146B SPEC