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Hi Sohail, re: > I tried to get the data from MYDATA/IMAGES, and it was working fine > for me. Below is an image attached. Very good. re: > As you see i treat the MYDATA as a dataset and check for the description > and it shows IMAGES group there. But when i tried to IMGLIST MYDATA/IMAGES > i cant see all the images i saved. Please use the built in HELP in McIDAS or refer to the Unidata McIDAS-X User's Guide to get more information on how to run IMGLIST: HELP IMGLIST IMGLIST -- Lists image directory information IMGLIST dataset epos <keywords> Parameters: dataset | ADDE dataset name and position; specify as alias.position or group/descriptor.position where the position "ALL" represents all positions in the dataset, a position number greater than zero represents an absolute position in the dataset, and zero or a negative number represents a relative position in the dataset based on image time, with 0 being the most recent, -1 the second most recent, etc; to use the default position, either enter its value or omit the .position portion (no def for group/descriptor or alias, def=0 for position) epos | ending absolute position number of data on server; must be greater than 0; valid only if the position number specified in the dataset parameter is greater than 0 Keywords: BANd=bband eband | list only the specified range of bands; uses BAND as the default for the FORM keyword =ALL | list all bands; uses default for FORM keyword (def) DAY=bday eday | list only images within the specified range of dates (no def for bday, eday def=bday) FORm=AUDIT | list default output plus audit trail =BAND | list default output plus band information =ALL | list BAND output plus expanded image directory =MEMO | list OPS output plus memo field and creation information =OPS | list image directory information in LA command format (def=list standard 1-line summary of image directory) ID=station | list only images with the specified NEXRAD station ID, e.g., MKX =LIST | list the most recent image for all NEXRAD stations SS= | list only images with the specified sensor source number TIMe=btime etime | list only images within the specified range of times (no def for btime, etime def=btime) WL=bwl ewl | list all bands with image wavelengths in the range bwl to ewl; uses FORM=BAND as the default output format; valid only with high spectral resolution data, e.g., Aqua AIRS WN=bwn ewn | list all bands with image wave numbers in the range bwn to ewn; uses FORM=BAND as the default output format; valid only with high spectral resolution data, e.g., Aqua AIRS Remarks: If a negative position is specified in 'dataset', all images from that position to the most recent are listed. For example, if you specify position -5, the six most recent images (positions 0,-1,-2,-3,-4,-5) are listed. When using FORM=BAND or FORM=ALL, the latitude and longitude resolution values listed with each band are for the image's center point. The line and element resolution factors (where "1" equals the base resolution factor of the instrument) are listed in the last line of the FORM=ALL output. If there are multiple bands with different resolutions, the resolution factors in the last line are for the band(s) with the lowest resolution. The section on 'dataset' in the HELP explains how to list out all of the elements in a dataset. For instance: IMGLIST MYDATA/IMAGES.ALL re: > I tried to use IMGDISP command with the images i saved like > IMGDISP MYDATA/IMAGES.3000 BAND=4, the image displayed. So i am a bit > surprised how to see the images i copied in the MYDATA dataset. The Training workshop materials and Learning Guide are good resources for learning more about how to run McIDAS commands. For instance, each of them explains that inclusion of keywords on McIDAS commands refines the requests that are being made. Here is an example that I included in an earlier email: IMGLIST GINIALL/GPN8KIR.ALL DAY=2017250 TIME=11 13 Image file directory listing for:GINIALL/GPN8KIR Pos Satellite/ Date Time Center Band(s) sensor Lat Lon --- ------------- ------------ -------- ---- ---- ------------ 39 G-13 IMG 7 SEP 17250 11:00:18 28 66 4 40 G-13 IMG 7 SEP 17250 11:15:18 28 66 4 41 G-13 IMG 7 SEP 17250 11:30:17 28 66 4 42 G-13 IMG 7 SEP 17250 11:45:18 28 66 4 43 G-13 IMG 7 SEP 17250 12:15:18 28 66 4 44 G-13 IMG 7 SEP 17250 12:30:17 28 66 4 45 G-13 IMG 7 SEP 17250 12:45:18 28 66 4 IMGLIST: done The 'ALL' portion of the dataset name says to list all of the images in GINIALL/GPN8KIR, and the DAY=2017250 keyword sequence says to limit the listing to images from Julian day 250 of the year 2017, and the TIME=11 13 keyword sequence refines the request just list all of the images from DAY 2017250 in the time range from 11 to 13 UTC. As you use McIDAS-X more, these sorts of things will get easier and easier to understand and use. 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: CYB-444461 Department: Support McIDAS Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.