2000 YR21

2000YR21, 39224, K00Y21R

All data for this body: [vot]

MPC data
Name (number) 2000 YR21 (39224)
a 2.55514
e 0.22875
i / sin(i) 14.2548 / 0.24624
q 1.97064
Q 3.13964
ω 276.3428
Node 46.7329
m 115.8426
n 0.2413
Epoch 2460800.5
nobs 1891
nopp 21
Years observed 1991-2025
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.554
ep 0.174
sin(ip) 0.244
G 0.150
H 14.580
Mass
D 3.47 0.556
pV 0.255 0.0674
Value
Rotational Period 11.038
Period quality 2
Spectral Class S
Spectral Class Score 5.953
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5537 0.1741 0.2445 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.47 0.556 0.556 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.255 0.0674 0.0674 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
14.58 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
11.0381 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 S 0.9922 0.9900 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT