[求助]raster to ascII

<P>我用raster to ascII，出现了这样的数据，我想问一下，这是怎么回事啊</P>
<P>ncols         52<BR>nrows         47<BR>xllcorner     598497.447<BR>yllcorner     4638414.3744841<BR>cellsize      100<BR>NODATA_value  -9999<BR>-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 <BR>-9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 -9999 </P>