GOES 12 Imager frame 90 at UTC 11:45:17.579 day 206 of 2008 
Vis pixels:  4025, 24860 lines:  2445, 13264
Vis Lon   :999999,999999 Lat :999999,999999
Imager ch4:count(0,1023) => [(modea-0)/1]^1 =Uchar> (255,0)
(xscale,yscale) => (0.190476,0.333333)
Vis pixels:  3650,  28850 lines:  2250,  14250
(xstride,ystride) => (21,12))