Wielen

04548, 1981 UB15, 1981UB15, 1981 WU5, 1981WU5, 2538 P-L, 2538P-L, J81U15B, J81W05U, PLS2538

All data for this body: [vot]

MPC data
Name (number) Wielen (4548)
a 2.28531
e 0.06467
i / sin(i) 8.2830 / 0.14406
q 2.13753
Q 2.43308
ω 202.3720
Node 26.1873
m 26.6683
n 0.2853
Epoch 2460800.5
nobs 3760
nopp 28
Years observed 1950-2025
rms 0.70
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.285
ep 0.096
sin(ip) 0.135
G 0.150
H 14.040
Mass
D 5.22 0.090
pV 0.179 0.0304
Value
Rotational Period 24.400
Period quality 2
Spectral Class Xk
Spectral Class Score 30.000
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2851 0.0961 0.1349 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.22 0.090 0.090 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.179 0.0304 0.0304 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
14.04 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
10.6915 2 Sidereal Durech 2023A&A...675A..24D Model
24.48 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S M 0.620000 0.350000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC
V X 0.2132 0.7920 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
X X 0.8002 0.7920 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
Xc Bus VIS Bus 2002Icar..158..146B SPEC
Xk Cb Bus-DeMeo VISNIR Avdellidou 2022A&A...665L...9A SPEC+PHOT