Walterkroll

09187, 1990 EZ3, 1990EZ3, 1990 GC1, 1990GC1, 1991 RD4, 1991RD4, J90E03Z, J90G01C, J91R04D

All data for this body: [vot]

MPC data
Name (number) Walterkroll (9187)
a 2.39383
e 0.20316
i / sin(i) 4.3632 / 0.07608
q 1.90749
Q 2.88017
ω 64.0749
Node 213.8442
m 93.9856
n 0.2661
Epoch 2460800.5
nobs 2901
nopp 25
Years observed 1990-2025
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.394
ep 0.193
sin(ip) 0.086
G 0.150
H 14.860
Mass
D
pV
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 4.921
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3944 0.1930 0.0862 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
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
14.86 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
L 0.88 Bus VIS Carvano 2010A&A...510A..43C PHOT
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S S 0.4869 0.2490 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT