Ikeya

04037, 1976 YF6, 1976YF6, 1978 JL, 1978JL, 1982 BX, 1982BX, 1987 EC, 1987EC, J76Y06F, J78J00L, J82B00X, J87E00C

All data for this body: [vot]

MPC data
Name (number) Ikeya (4037)
a 2.77411
e 0.15636
i / sin(i) 8.4580 / 0.14708
q 2.34035
Q 3.20787
ω 74.7708
Node 13.3563
m 156.9420
n 0.2133
Epoch 2460800.5
nobs 3747
nopp 28
Years observed 1978-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.772
ep 0.154
sin(ip) 0.150
G 0.150
H 12.690
Mass
D 7.08 0.165
pV 0.352 0.0563
Value
Rotational Period 4.058
Period quality 2
Spectral Class Sq
Spectral Class Score 5.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.7723 0.1540 0.1500 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.08 0.165 0.165 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.352 0.0563 0.0563 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
12.69 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.057537 2 Sidereal Durech 2016A&A...587A..48D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Q 0.830000 0.160000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
Sq Bus VIS Bus 2002Icar..158..146B SPEC