1999 UT18

1999UT18, 91861, J99U18T

All data for this body: [vot]

MPC data
Name (number) 1999 UT18 (91861)
a 3.11201
e 0.01149
i / sin(i) 7.9304 / 0.13797
q 3.07624
Q 3.14778
ω 265.7194
Node 44.2099
m 304.0951
n 0.1795
Epoch 2460800.5
nobs 1023
nopp 20
Years observed 1997-2024
rms 0.66
Best values
[raw, vot]

Value Standard error
Parent
 
ap 3.112
ep 0.025
sin(ip) 0.127
G 0.150
H 14.810
Mass
D 7.69 0.144
pV 0.043 0.0122
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 2.820
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1116 0.0246 0.1270 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.69 0.144 0.144 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.043 0.0122 0.0122 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
14.81 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.41 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.1048 0.1048 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT