1987 WU4

1987WU4, 15233, 1998 KE64, 1998KE64, 1999 RX172, 1999RX172, J87W04U, J98K64E, J99RH2X

All data for this body: [vot]

MPC data
Name (number) 1987 WU4 (15233)
a 2.57325
e 0.15701
i / sin(i) 4.7258 / 0.08239
q 2.16922
Q 2.97728
ω 326.2892
Node 79.3152
m 33.1261
n 0.2388
Epoch 2460800.5
nobs 3155
nopp 23
Years observed 1987-2025
rms 0.64
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.573
ep 0.157
sin(ip) 0.065
G 0.150
H 14.160
Mass
D 4.55 0.268
pV 0.367 0.0295
Value
Rotational Period
Period quality None
Spectral Class L
Spectral Class Score 3.012
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.5731 0.1568 0.0649 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
3.78 0.366 0.366 Masiero 2011ApJ...741...68M NEATM
5.44 0.395 0.395 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.198 0.0659 0.0659 Masiero 2011ApJ...741...68M NEATM
0.409 0.0330 0.0330 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
14.16 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
L 0.502 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT
S S None None Movis NIR Popescu 2018A&A...617A..12P PHOT