1999 UL8

1999UL8, 43000, J99U08L

All data for this body: [vot]

MPC data
Name (number) 1999 UL8 (43000)
a 2.55902
e 0.21027
i / sin(i) 12.3828 / 0.21444
q 2.02094
Q 3.09711
ω 154.5260
Node 227.2573
m 95.4879
n 0.2408
Epoch 2460800.5
nobs 1928
nopp 21
Years observed 1998-2025
rms 0.77
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.560
ep 0.179
sin(ip) 0.223
G 0.150
H 14.830
Mass
D 3.78 0.569
pV 0.126 0.0291
Value
Rotational Period 608.000
Period quality 2
Spectral Class S
Spectral Class Score 5.958
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5599 0.1795 0.2233 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.59 0.890 0.890 Nugent 2016AJ....152...63N NEATM
3.89 0.996 0.996 Masiero 2011ApJ...741...68M NEATM
3.95 1.107 1.107 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.124 0.0389 0.0389 Masiero 2011ApJ...741...68M NEATM
0.128 0.0522 0.0522 Masiero 2011ApJ...741...68M NEATM
0.130 0.0800 0.0800 Nugent 2016AJ....152...63N 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
14.83 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
608.3 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 0.993 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT