Duffard

08797, 1981 EU18, 1981EU18, J81E18U

All data for this body: [vot]

MPC data
Name (number) Duffard (8797)
a 3.07302
e 0.17205
i / sin(i) 0.2043 / 0.00357
q 2.54431
Q 3.60174
ω 195.7375
Node 92.3180
m 326.6580
n 0.1830
Epoch 2460800.5
nobs 2692
nopp 29
Years observed 1951-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.076
ep 0.217
sin(ip) 0.017
G 0.150
H 13.870
Mass
D 8.23 0.175
pV 0.086 0.0160
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.900
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.0764 0.2168 0.0174 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.23 0.175 0.175 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.086 0.0160 0.0160 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
13.87 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
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.45 Bus VIS Carvano 2010A&A...510A..43C PHOT