Ewers

12843, 1989 ES11, 1989ES11, 1995 UA50, 1995UA50, 1997 GH27, 1997GH27, J89E11S, J95U50A, J97G27H

All data for this body: [vot]

MPC data
Name (number) Ewers (12843)
a 2.47905
e 0.11909
i / sin(i) 3.0615 / 0.05341
q 2.18382
Q 2.77428
ω 90.1027
Node 20.4912
m 135.2776
n 0.2525
Epoch 2460800.5
nobs 2504
nopp 25
Years observed 1989-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.478
ep 0.135
sin(ip) 0.047
G 0.150
H 14.670
Mass
D 3.77 1.095
pV 0.197 0.1297
Value
Rotational Period 8.071
Period quality 2
Spectral Class S
Spectral Class Score 4.536
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4784 0.1351 0.0468 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.77 1.095 1.095 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.197 0.1297 0.1297 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
14.67 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.0714 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
S 0.756 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT