Drozdov

18334, 1987 RA3, 1987RA3, 1991 RM12, 1991RM12, J87R03A, J91R12M

All data for this body: [vot]

MPC data
Name (number) Drozdov (18334)
a 2.56847
e 0.24544
i / sin(i) 4.3808 / 0.07638
q 1.93807
Q 3.19886
ω 167.9978
Node 139.5403
m 76.3041
n 0.2394
Epoch 2460800.5
nobs 3029
nopp 23
Years observed 1987-2025
rms 0.72
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.570
ep 0.212
sin(ip) 0.061
G 0.150
H 14.400
Mass
D 4.20 0.806
pV 0.331 0.0948
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 10.173
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5704 0.2121 0.0613 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.20 0.806 0.806 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.331 0.0948 0.0948 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
14.40 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 0.42 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.5923 0.9370 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
S S 0.9632 0.9370 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT