column  type  UCD  unit  description 
snapnum 
int 
time 

The snapshot number for this field.
This column corresponds to the snapnum column in
the Snapshots table in MField.

phkey 
int 


The PeanoHilbert key for this grid cell.

cic 
float 
phys.density 

The countsincell density in the grid cell, normalized by mean density.
I.e. cic*10077696000/256^{3} gives the number of particles in each cell.

g1_25 
float 
phys.density 

The density field smoothed with a Gaussian smoothing and radius 1.25 Mpc/h, normalized by mean density.

g2_5 
float 
phys.density 

The density field smoothed with a Gaussian smoothing and radius 2.5 Mpc/h, normalized by mean density.

g5 
float 
phys.density 

The density field smoothed with a Gaussian smoothing and radius 5 Mpc/h, normalized by mean density.

g10 
float 
phys.density 

The density field smoothed with a Gaussian smoothing and radius 10 Mpc/h, normalized by mean density.
