2001 UL81

2001UL81, 1998 YU24, 1998YU24, D1531, J98Y24U, K01U81L

All data for this body: [vot]

MPC data
Name (number) 2001 UL81 (131531)
a 2.17606
e 0.10927
i / sin(i) 2.5682 / 0.04481
q 1.93829
Q 2.41383
ω 36.3898
Node 77.7666
m 54.5962
n 0.3070
Epoch 2460800.5
nobs 1284
nopp 19
Years observed 1995-2025
rms 0.81
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.176
ep 0.166
sin(ip) 0.038
G 0.150
H 16.700
Mass
D 2.40 0.835
pV 0.085 0.0379
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 3.123
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.1762 0.1664 0.0384 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.40 0.835 0.835 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.085 0.0379 0.0379 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
16.70 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
C C 0.5205 0.5205 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT