2001 UM3

2001UM3, 2002 XB84, 2002XB84, H1998, K01U03M, K02X84B

All data for this body: [vot]

MPC data
Name (number) 2001 UM3 (171998)
a 3.14909
e 0.11896
i / sin(i) 5.7694 / 0.10053
q 2.77446
Q 3.52371
ω 103.0813
Node 49.8485
m 324.4263
n 0.1764
Epoch 2460800.5
nobs 704
nopp 17
Years observed 2001-2025
rms 0.82
Best values
[raw, vot]

Value Standard error
Parent Hygiea (10)
 
ap 3.144
ep 0.149
sin(ip) 0.090
G 0.150
H 15.390
Mass
D 5.60 0.702
pV 0.056 0.0128
Value
Rotational Period
Period quality None
Spectral Class B
Spectral Class Score 5.550
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
3.1443 0.1490 0.0896 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.60 0.702 0.702 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.056 0.0128 0.0128 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
15.39 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
B 0.925 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT