Oumu

04644, 1951 GC, 1951GC, 1982 UA2, 1982UA2, 1985 JF2, 1985JF2, 1989 HE, 1989HE, 1990 SR3, 1990SR3, J51G00C, J82U02A, J85J02F, J89H00E, J90S03R

All data for this body: [vot]

MPC data
Name (number) Oumu (4644)
a 2.60872
e 0.14253
i / sin(i) 14.1189 / 0.24394
q 2.23689
Q 2.98055
ω 207.1272
Node 48.1647
m 166.6573
n 0.2339
Epoch 2460800.5
nobs 4526
nopp 28
Years observed 1951-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent Eunomia (15)
 
ap 2.608
ep 0.161
sin(ip) 0.228
G 0.150
H 12.480
Mass
D 8.61 0.034
pV 0.309 0.0200
Value
Rotational Period 84.200
Period quality 2
Spectral Class S
Spectral Class Score 25.988
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 -0.6600 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6078 0.1608 0.2280 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
7.49 0.060 0.060 Masiero 2014ApJ...791..121M NEATM
7.61 0.183 0.183 Masiero 2011ApJ...741...68M NEATM
8.45 1.940 1.940 Nugent 2016AJ....152...63N NEATM
8.81 0.110 0.110 Masiero 2014ApJ...791..121M NEATM
9.26 0.045 0.045 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.220 0.1100 0.1100 Nugent 2016AJ....152...63N NEATM
0.274 0.0341 0.0341 Masiero 2011ApJ...741...68M NEATM
0.300 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.406 0.0754 0.0754 Masiero 2011ApJ...741...68M NEATM
0.420 0.0600 0.0600 Masiero 2014ApJ...791..121M 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
12.48 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
84.24 2 Synodic Behrend LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VISNIR Nathues 2010Icar..208..252N SPEC+PHOT
S Tholen VISNIR Nathues 2010Icar..208..252N SPEC+PHOT
S 0.998 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT