1998 HG18

1998HG18, 1999 VU147, 1999VU147, 74027, J98H18G, J99VE7U

All data for this body: [vot]

MPC data
Name (number) 1998 HG18 (74027)
a 2.41143
e 0.18863
i / sin(i) 3.8114 / 0.06647
q 1.95656
Q 2.86629
ω 42.2143
Node 257.6039
m 0.1964
n 0.2632
Epoch 2460800.5
nobs 1233
nopp 21
Years observed 1993-2025
rms 0.79
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.412
ep 0.166
sin(ip) 0.082
G 0.150
H 15.880
Mass
D 1.66 0.283
pV 0.403 0.1064
Value
Rotational Period
Period quality None
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.4120 0.1659 0.0817 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
1.66 0.283 0.283 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.403 0.1064 0.1064 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
15.88 MPC-2023-12-04 MPC-2023-12-04 Phot