1999 WR4

1999WR4, 2001 EE2, 2001EE2, 97185, J99W04R, K01E02E

All data for this body: [vot]

MPC data
Name (number) 1999 WR4 (97185)
a 2.97235
e 0.04962
i / sin(i) 11.2946 / 0.19585
q 2.82486
Q 3.11984
ω 330.4372
Node 57.9348
m 26.9575
n 0.1923
Epoch 2460800.5
nobs 1810
nopp 21
Years observed 1999-2025
rms 0.78
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.972
ep 0.019
sin(ip) 0.181
G 0.150
H 14.430
Mass
D 4.84 0.245
pV 0.190 0.0522
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.9721 0.0188 0.1806 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.84 0.245 0.245 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.190 0.0522 0.0522 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
14.43 MPC-2023-12-04 MPC-2023-12-04 Phot