Kayor

04421, 1942 AC, 1942AC, 1981 BW, 1981BW, J42A00C, J81B00W

All data for this body: [vot]

MPC data
Name (number) Kayor (4421)
a 2.66209
e 0.19355
i / sin(i) 16.2427 / 0.27971
q 2.14683
Q 3.17735
ω 1.2048
Node 95.9668
m 83.7979
n 0.2269
Epoch 2460800.5
nobs 4939
nopp 27
Years observed 1942-2025
rms 0.63
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.662
ep 0.226
sin(ip) 0.251
G 0.150
H 12.410
Mass
D 9.28 0.099
pV 0.251 0.0286
Value
Rotational Period 91.000
Period quality 2
Spectral Class S
Spectral Class Score 4.452
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6617 0.2256 0.2514 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.67 2.130 2.130 Ali-Lagoa 2018A&A...612A..85A NEATM
8.65 1.730 1.730 Nugent 2016AJ....152...63N NEATM
8.73 1.750 1.750 Ali-Lagoa 2018A&A...612A..85A NEATM
9.19 0.110 0.110 Masiero 2012ApJ...759L...8M NEATM
9.27 0.670 0.670 Usui 2011PASJ...63.1117U NEATM
9.76 0.250 0.250 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.197 0.0790 0.0790 Ali-Lagoa 2018A&A...612A..85A NEATM
0.230 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM
0.244 0.0470 0.0470 Masiero 2012ApJ...759L...8M NEATM
0.279 0.0490 0.0490 Masiero 2012ApJ...759L...8M NEATM
0.294 0.1180 0.1180 Ali-Lagoa 2018A&A...612A..85A 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
12.41 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
91.02 2 Synodic Marchini 2020MPBu...47..249M Lightcurve
91.03 2 Synodic Noschese 2020MPBu...47..254N Lightcurve
91.082 2- Synodic McNeill 2019ApJS..245...29M Lightcurve
91.4 2 Synodic Polakis 2020MPBu...47..177P Lightcurve
92.1585 2 Synodic Pal 2020ApJS..247...26P Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S 0.742 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT