1989 UM4

1989UM4, 14379, 1976 UH3, 1976UH3, 1998 QT98, 1998QT98, 2000 AT203, 2000AT203, J76U03H, J89U04M, J98Q98T, K00AK3T

All data for this body: [vot]

MPC data
Name (number) 1989 UM4 (14379)
a 2.67148
e 0.16605
i / sin(i) 12.9439 / 0.22400
q 2.22789
Q 3.11506
ω 185.8377
Node 218.7437
m 33.1144
n 0.2257
Epoch 2460800.5
nobs 5097
nopp 24
Years observed 1976-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.671
ep 0.153
sin(ip) 0.229
G 0.150
H 12.680
Mass
D 7.14 0.343
pV 0.416 0.1052
Value
Rotational Period 2.700
Period quality 2
Spectral Class K
Spectral Class Score 0.211
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 0.4900 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6711 0.1535 0.2285 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.14 0.343 0.343 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.416 0.1052 0.1052 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
12.68 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
2.72 2 Synodic Molnar 2018ApJS..234...37M Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
K K 0.0351 0.0180 Bus-Demeo VIS Sergeyev 2021A&A...652A..59S PHOT