1999 WG18

1999WG18, 1998 LH, 1998LH, 49776, J98L00H, J99W18G

All data for this body: [vot]

MPC data
Name (number) 1999 WG18 (49776)
a 2.23685
e 0.09741
i / sin(i) 2.6029 / 0.04541
q 2.01896
Q 2.45474
ω 310.1478
Node 67.9591
m 258.9388
n 0.2946
Epoch 2460800.5
nobs 2536
nopp 20
Years observed 1998-2025
rms 0.71
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.237
ep 0.069
sin(ip) 0.035
G 0.150
H 15.340
Mass
D 2.23 0.260
pV 0.390 0.1015
Value
Rotational Period
Period quality None
Spectral Class C
Spectral Class Score 4.392
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.2366 0.0685 0.0347 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.23 0.260 0.260 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.390 0.1015 0.1015 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
15.34 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
C 0.732 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT