1990 UA1

1990UA1, 15730, 1981 UG13, 1981UG13, 1998 QP65, 1998QP65, J81U13G, J90U01A, J98Q65P

All data for this body: [vot]

MPC data
Name (number) 1990 UA1 (15730)
a 2.67061
e 0.13063
i / sin(i) 12.0788 / 0.20926
q 2.32176
Q 3.01946
ω 221.6380
Node 236.5333
m 280.3699
n 0.2258
Epoch 2460800.5
nobs 8109
nopp 25
Years observed 1951-2025
rms 0.47
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.672
ep 0.144
sin(ip) 0.224
G 0.150
H 12.800
Mass
D 8.38 0.215
pV 0.239 0.0434
Value
Rotational Period
Period quality None
Spectral Class S
Spectral Class Score 6.000
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
15 Eunomia 0 Eunomia Novakovic 2019EPSC...13.1671N HCM
15 Eunomia 502 Eunomia 0.4600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6722 0.1438 0.2241 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
8.36 0.216 0.216 Masiero 2011ApJ...741...68M NEATM
9.86 1.910 1.910 Masiero 2012ApJ...759L...8M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.182 0.0980 0.0980 Masiero 2012ApJ...759L...8M NEATM
0.253 0.0484 0.0484 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
12.80 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
S 1.000 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT