Grass

11496, 1989 AG7, 1989AG7, 1998 GQ9, 1998GQ9, J89A07G, J98G09Q

All data for this body: [vot]

MPC data
Name (number) Grass (11496)
a 2.61389
e 0.13602
i / sin(i) 12.7235 / 0.22025
q 2.25835
Q 2.96944
ω 123.7244
Node 134.2972
m 103.5787
n 0.2332
Epoch 2460800.5
nobs 4030
nopp 24
Years observed 1988-2025
rms 0.61
Best values
[raw, vot]

Value Standard error
Parent
 
ap 2.615
ep 0.144
sin(ip) 0.210
G 0.150
H 14.250
Mass
D 4.23 0.427
pV 0.298 0.0761
Value
Rotational Period 3.000
Period quality 1
Spectral Class None
Spectral Class Score
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6151 0.1440 0.2104 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
4.23 0.427 0.427 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.298 0.0761 0.0761 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
14.25 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
3.5 1 Synodic Polishook 2012MNRAS.421.2094P Lightcurve