1999 WS4

1999WS4, 38574, J99W04S

All data for this body: [vot]

MPC data
Name (number) 1999 WS4 (38574)
a 5.13866
e 0.10621
i / sin(i) 7.1970 / 0.12528
q 4.59288
Q 5.68444
ω 171.4737
Node 300.8508
m 33.6465
n 0.0846
Epoch 2460800.5
nobs 2041
nopp 23
Years observed 1998-2025
rms 0.74
Best values
[raw, vot]

Value Standard error
Parent
 
ap
ep
sin(ip)
G 0.150
H 11.870
Mass
D 17.30 2.690
pV 0.135 0.0560
Value
Rotational Period 7.080
Period quality 2
Spectral Class C
Spectral Class Score 5.154
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.30 2.690 2.690 Grav 2012ApJ...759...49G NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.135 0.0560 0.0560 Grav 2012ApJ...759...49G 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
11.87 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
7.085 2 Synodic Szabo 2017A&A...599A..44S Lightcurve
7.09 1 Synodic Ryan 2017AJ....153..116R Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
C 0.859 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT