1998 UM3

1998UM3, 1998 QT21, 1998QT21, 2000 FE4, 2000FE4, 49265, J98Q21T, J98U03M, K00F04E

All data for this body: [vot]

MPC data
Name (number) 1998 UM3 (49265)
a 2.35471
e 0.22521
i / sin(i) 0.8269 / 0.01443
q 1.82441
Q 2.88502
ω 176.6275
Node 197.5873
m 308.1916
n 0.2728
Epoch 2460200.5
nobs 1136
nopp 19
Years observed 1995-2022
rms 0.73
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.355
ep 0.190
sin(ip) 0.026
Value Standard error
G 0.150
H 16.110
Mass
D 1.85 0.344
pV 0.163 0.0594
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.3550 0.1900 0.0264 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Oct-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.69 0.424 0.424 Masiero 2011ApJ...741...68M NEATM
2.16 0.588 0.588 Masiero 2017AJ....154..168M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.151 0.0727 0.0727 Masiero 2017AJ....154..168M NEATM
0.187 0.1031 0.1031 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
16.11 MPC-2023-12-04 MPC-2023-12-04 Phot