1990 UE4

1990UE4, 16509, 1979 YM4, 1979YM4, 1998 HL133, 1998HL133, J79Y04M, J90U04E, J98HD3L

All data for this body: [vot]

MPC data
Name (number) 1990 UE4 (16509)
a 3.14534
e 0.15526
i / sin(i) 6.1983 / 0.10797
q 2.65701
Q 3.63368
ω 299.6465
Node 131.7823
m 44.5905
n 0.1767
Epoch 2460800.5
nobs 2709
nopp 27
Years observed 1979-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.153
ep 0.133
sin(ip) 0.092
G 0.150
H 13.560
Mass
D 11.02 0.186
pV 0.045 0.0062
Value
Rotational Period 5.590
Period quality 2
Spectral Class C
Spectral Class Score 15.376
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
10 Hygiea 0 Hygiea Novakovic 2019EPSC...13.1671N HCM
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
3.1534 0.1328 0.0922 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
10.19 1.640 1.640 Masiero 2012ApJ...759L...8M NEATM
11.04 0.187 0.187 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.044 0.0067 0.0067 Masiero 2011ApJ...741...68M NEATM
0.051 0.0170 0.0170 Masiero 2012ApJ...759L...8M 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
13.56 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.576 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
5.591 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.380 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
B C 0.4155 0.4880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C DeMeo-Carry VIS DeMeo 2013Icar..226..723D PHOT
C 0.65 Bus VIS Carvano 2010A&A...510A..43C PHOT
C C 0.5825 0.4880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.6225 0.4880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT
C C 0.8077 0.4880 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT