Hayashi

04771, 1967 RD1, 1967RD1, 1979 FQ, 1979FQ, 1980 RA3, 1980RA3, 1989 RM2, 1989RM2, J67R01D, J79F00Q, J80R03A, J89R02M

All data for this body: [vot]

MPC data
Name (number) Hayashi (4771)
a 2.68493
e 0.15480
i / sin(i) 4.8000 / 0.08368
q 2.26930
Q 3.10055
ω 44.2721
Node 288.9047
m 51.8679
n 0.2240
Epoch 2460800.5
nobs 4401
nopp 29
Years observed 1967-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.685
ep 0.123
sin(ip) 0.102
G 0.150
H 12.770
Mass
D 13.16 0.069
pV 0.103 0.0077
Value
Rotational Period 9.800
Period quality 3-
Spectral Class X
Spectral Class Score 5.760
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6851 0.1232 0.1023 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.64 0.790 0.790 Usui 2011PASJ...63.1117U NEATM
12.72 0.109 0.109 Masiero 2011ApJ...741...68M NEATM
12.88 2.580 2.580 Ali-Lagoa 2018A&A...612A..85A NEATM
13.47 0.090 0.090 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.098 0.0106 0.0106 Masiero 2011ApJ...741...68M NEATM
0.099 0.0400 0.0400 Ali-Lagoa 2018A&A...612A..85A NEATM
0.109 0.0118 0.0118 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
12.77 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
9.801 3- Synodic Galad 2008MPBu...35..128G Lightcurve
9.80406 2 Sidereal Durech 2020A&A...643A..59D Model
9.8041 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
X 0.960 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT