Ruikou

04101, 1966 CO, 1966CO, 1975 EG2, 1975EG2, 1981 RD3, 1981RD3, 1984 FY1, 1984FY1, 1988 CE, 1988CE, J66C00O, J75E02G, J81R03D, J84F01Y, J88C00E

All data for this body: [vot]

MPC data
Name (number) Ruikou (4101)
a 2.69843
e 0.11405
i / sin(i) 8.7453 / 0.15204
q 2.39068
Q 3.00618
ω 339.7210
Node 338.8632
m 318.6637
n 0.2223
Epoch 2460800.5
nobs 5774
nopp 31
Years observed 1953-2025
rms 0.58
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.698
ep 0.089
sin(ip) 0.159
G 0.150
H 12.440
Mass
D 8.30 0.128
pV 0.169 0.0313
Value
Rotational Period 8.090
Period quality 3-
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6981 0.0893 0.1593 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
13.63 0.800 0.800 Masiero 2012ApJ...759L...8M NEATM
8.16 0.130 0.130 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.125 0.0350 0.0350 Masiero 2012ApJ...759L...8M NEATM
0.350 0.0705 0.0705 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
12.44 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
8.098 3- Synodic Marchini 2022MPBu...49...10M Lightcurve