Couteau

04909, 1949 SA1, 1949SA1, 1949 SD, 1949SD, 1949 TJ, 1949TJ, 1949 UG1, 1949UG1, 1959 NK, 1959NK, 1966 QO, 1966QO, 1973 SW3, 1973SW3, 1990 RA, 1990RA, J49S00D, J49S01A, J49T00J, J49U01G, J59N00K, J66Q00O, J73S03W, J90R00A

All data for this body: [vot]

MPC data
Name (number) Couteau (4909)
a 2.27346
e 0.24588
i / sin(i) 2.4085 / 0.04202
q 1.71446
Q 2.83245
ω 235.1698
Node 114.0917
m 34.7303
n 0.2875
Epoch 2460800.5
nobs 5177
nopp 29
Years observed 1949-2025
rms 0.62
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.273
ep 0.203
sin(ip) 0.034
G 0.150
H 13.570
Mass
D 5.44 0.054
pV 0.290 0.0123
Value
Rotational Period 5.050
Period quality 3
Spectral Class S
Spectral Class Score 11.600
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2733 0.2028 0.0344 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.03 0.740 0.740 Nugent 2016AJ....152...63N NEATM
5.32 0.090 0.090 Masiero 2014ApJ...791..121M NEATM
5.49 0.070 0.070 Masiero 2011ApJ...741...68M NEATM
5.78 0.249 0.249 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.278 0.0145 0.0145 Masiero 2011ApJ...741...68M NEATM
0.308 0.0382 0.0382 Masiero 2011ApJ...741...68M NEATM
0.330 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM
0.370 0.1600 0.1600 Nugent 2016AJ....152...63N 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
13.57 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.05021 2 Sidereal Durech 2020A&A...643A..59D Model
5.0505 3 Synodic Clark 2015MPBu...42...15C Lightcurve
5.051 3 Synodic Klinglesmith 2015MPBu...42..101K Lightcurve
5.054 3 Synodic Pravec LCDB Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
S Bus VIS Bus 2002Icar..158..146B SPEC
S DeMeo-Carry VIS Choi 2023PSJ.....4...49C PHOT
S 0.920000 Mahlke VIS Mahlke 2022A&A...665A..26M SPEC