1999 VS21

1999VS21, 1998 MA2, 1998MA2, 38544, J98M02A, J99V21S

All data for this body: [vot]

MPC data
Name (number) 1999 VS21 (38544)
a 3.09682
e 0.19313
i / sin(i) 5.5405 / 0.09655
q 2.49873
Q 3.69492
ω 223.7554
Node 97.3542
m 312.6949
n 0.1809
Epoch 2460800.5
nobs 2680
nopp 24
Years observed 1991-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.099
ep 0.169
sin(ip) 0.075
G 0.150
H 13.560
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 1.834
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0991 0.1694 0.0754 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
13.56 MPC-2023-12-04 MPC-2023-12-04 Phot
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S S 0.3056 0.3056 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X 0.208 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
XD 0.17 Bus VIS Carvano 2010A&A...510A..43C PHOT