grid_table: 

grid_id    	src_grid_label	grid_label	grid_source	grid_size_idm_jdm_kdm	i0j0_pts	ijgrd  gridno
rtofs_26     	ncep1_12      	A12         	rtofs_26     	1200 1684 26           	1   1     	1      120
g_mx           	ncep1_12       	S12_gmc     	rtofs_26    	350   465  26      	460 1180 	1      122
nw_atl_mid  	ncep1_12       	S12_atlm     	rtofs_26    	240   314  26      	640   895  	1      124
nw_atl_north	ncep1_12       	S12_atln       	rtofs_26 	280   360  26       	710   610  	1      123
nw_atl_south	ncep1_12       	S12_atls       	rtofs_26 	300   340  26     	400   900  	1      125