1998 VY21

1998VY21, 1990 DM8, 1990DM8, 1990 ET10, 1990ET10, 2000 HP95, 2000HP95, 28164, J90D08M, J90E10T, J98V21Y, K00H95P

All data for this body: [vot]

MPC data
Name (number) 1998 VY21 (28164)
a 2.18874
e 0.04909
i / sin(i) 5.6346 / 0.09818
q 2.08129
Q 2.29620
ω 164.6422
Node 275.1112
m 34.0600
n 0.3044
Epoch 2460800.5
nobs 1877
nopp 20
Years observed 1990-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.189
ep 0.099
sin(ip) 0.100
G 0.150
H 15.910
Mass
D
pV
Value
Rotational Period 22.970
Period quality 2
Spectral Class S
Spectral Class Score 10.558
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1886 0.0989 0.1002 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
15.91 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
22.971 2 Sidereal Durech 2023A&A...675A..24D Model
22.974 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
A S 0.3611 0.4810 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S 0.973 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S 0.7867 0.4810 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
SA 0.06 Bus VIS Carvano 2010A&A...510A..43C PHOT
V S 0.5217 0.4810 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT