1990 UP4

1990UP4, 27742, J90U04P

All data for this body: [vot]

MPC data
Name (number) 1990 UP4 (27742)
a 2.44788
e 0.18776
i / sin(i) 5.5294 / 0.09636
q 1.98828
Q 2.90748
ω 217.6291
Node 170.1211
m 11.2618
n 0.2573
Epoch 2460800.5
nobs 1850
nopp 21
Years observed 1990-2024
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.448
ep 0.161
sin(ip) 0.094
G 0.150
H 15.050
Mass
D 5.81 1.096
pV 0.053 0.0235
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4477 0.1608 0.0936 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
5.37 1.360 1.360 Masiero 2020PSJ.....1....5M NEATM
6.61 1.850 1.850 Masiero 2020PSJ.....1....5M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.044 0.0300 0.0300 Masiero 2020PSJ.....1....5M NEATM
0.067 0.0380 0.0380 Masiero 2020PSJ.....1....5M 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
15.05 MPC-2023-12-04 MPC-2023-12-04 Phot