1999 VD81

1999VD81, 66890, J99V81D

All data for this body: [vot]

MPC data
Name (number) 1999 VD81 (66890)
a 2.87960
e 0.17479
i / sin(i) 3.9577 / 0.06902
q 2.37628
Q 3.38292
ω 292.8774
Node 130.3740
m 74.9802
n 0.2017
Epoch 2460800.5
nobs 1968
nopp 21
Years observed 1993-2025
rms 0.75
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.882
ep 0.154
sin(ip) 0.055
G 0.150
H 14.520
Mass
D 3.89 0.307
pV 0.244 0.0723
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.499
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.8823 0.1545 0.0552 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.89 0.307 0.307 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.244 0.0723 0.0723 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
14.52 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 0.35 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.7094 0.8340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9237 0.8340 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT