1990 UW2

1990UW2, 15731, 1999 FF25, 1999FF25, J90U02W, J99F25F

All data for this body: [vot]

MPC data
Name (number) 1990 UW2 (15731)
a 3.19098
e 0.11475
i / sin(i) 7.1038 / 0.12367
q 2.82482
Q 3.55714
ω 241.2994
Node 82.3530
m 87.1454
n 0.1729
Epoch 2460800.5
nobs 3310
nopp 25
Years observed 1990-2025
rms 0.68
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.179
ep 0.114
sin(ip) 0.104
G 0.150
H 13.430
Mass
D 12.34 0.233
pV 0.051 0.0096
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 3.160
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
52 Europa -1 Europa -1.0000 Nesvorny 2024ApJS..274...25N HCM-2024
10 Hygiea 601 Hygiea Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1790 0.1144 0.1043 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.34 0.233 0.233 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.051 0.0096 0.0096 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
13.43 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 0.5267 0.5267 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT