1998 UD20

1998UD20, 1997 MH12, 1997MH12, 47010, J97M12H, J98U20D

All data for this body: [vot]

MPC data
Name (number) 1998 UD20 (47010)
a 3.14561
e 0.18981
i / sin(i) 5.2633 / 0.09173
q 2.54854
Q 3.74268
ω 210.8968
Node 130.3985
m 321.0986
n 0.1767
Epoch 2460800.5
nobs 1207
nopp 26
Years observed 1995-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.143
ep 0.165
sin(ip) 0.072
G 0.150
H 14.600
Mass
D 7.23 0.222
pV 0.071 0.0108
Value
Rotational Period 7.315
Period quality 2
Spectral Class C
Spectral Class Score 5.304
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1432 0.1648 0.0721 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.23 0.222 0.222 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.071 0.0108 0.0108 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
14.60 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.3155 2 Sidereal Durech 2023A&A...675A..24D Model
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B B 0.0688 0.0688 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C 0.884 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT