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Hi Julia, re: try IMGDISP EAST/CONUS.2275 EU=IMAGE BAND=1 MAG=-4 > Yes, it does display the image. So, I think it is where my problem is. The > frame size is too small. I was looking at the space. Please remember that the GOES-East images are very large. It is likely that you will never be able to create a frame large enough to display an entire image. This is the reason McIDAS has a rich syntax for displaying images under user control. Please check out the Unidata Users Guide section on IMGDISP for more information. > Can I ask you a question about Latitude and Longtitude? The > Latitude/Longtitude is in DD:MM:SS format on the frame. McIDAS supports a number of formats for lat/lon. Please run 'ARGHELP' for more information. > But in .ALT > file(generated by > AXFORM), it is a digital count. Is it in (digital counts)/100 degrees? I assume that the following snippit from the AXFORM online help pertains: NAV=YES inc | produce .LAT/.LON data files with an element increment; these files contain LAT/LON stored as degrees*100 (2 bytes per element); the increment is the the number of data elements associated with each LAT/LON element (def=NO 1) I would suspect that the lat/lon numbers are degrees*100. > Thank you very much for your excellent support. No worries. > Now, I wonder how I can > get GOES-12 band 1 data of May 2006? Is LDM the only way to do it? The LDM is typically used for moving real time data. It is not the way one accesses archival data. If you will be satisfied with the 1-byte, 4 km res Vis images that are sent out in the Unidata-Wisconsin datastream, then you can FTP near-realtime images from unidata2.ssec.wisc.edu: machine: unidata2.ssec.wisc.edu user: unidata3 pass: unirec7 directory: neartime/... Please review: http://www.unidata.ucar.edu/data/unirec.html for additional details If you need higher resolution images and/or 10-bit images, you will need to order the data from the SSEC Data Center. This can be done for free for US university sites. Please review: http://www.ssec.wisc.edu/datacenter/archive.html for additional details, and note that you will likely need to send an email to Dee Wade of SSEC (Dee Wade <address@hidden> Cheers, Tom **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: ARA-684823 Department: Support McIDAS Priority: Normal Status: Closed