1995 UJ31

1995UJ31, 1998 HH67, 1998HH67, 30999, J95U31J, J98H67H

All data for this body: [vot]

MPC data
Name (number) 1995 UJ31 (30999)
a 2.99066
e 0.11855
i / sin(i) 1.6177 / 0.02823
q 2.63611
Q 3.34522
ω 39.6919
Node 11.9050
m 237.6233
n 0.1906
Epoch 2460800.5
nobs 2085
nopp 22
Years observed 1995-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.988
ep 0.099
sin(ip) 0.034
G 0.150
H 14.270
Mass
D 3.84 0.788
pV 0.330 0.2032
Value
Rotational Period 4.188
Period quality 2
Spectral Class S
Spectral Class Score 8.572
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9877 0.0994 0.0344 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.84 0.788 0.788 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.330 0.2032 0.2032 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
14.27 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
4.18797 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 DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
S 0.60 Bus VIS Carvano 2010A&A...510A..43C PHOT
S S 0.8954 0.8954 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT