Auto Processing (Command Line Processing)

There is no mention of this feature in the Help file yet, so, copy this page or take notes, as this is the only place you'll find info on how to use this feature.

I have added the capability to automatically process element files to a limited extent.

You can create a Batch file which invokes Element Manager and processes the input file with parameters you specify on the command line.

You can automatically extract elements conforming to selection criteria related to Mean Motion, Eccentricity, Inclination, Age and a Select File. You can mix these criteria, or use only one.

To extract elements with Mean Motions, you should enter a forward slash, then the minimum mean motion followed by a dash (minus sign - ) then followed by a maximum mean motion.

There are several characters Element Manager will look for.

/M - indicates a selection for mean motion
/I - indicates a selection for inclination
/E - indicates a selection for eccentricity
/A - indicates a selection for age
/S - indicates a Select File
/O - indicates an Output FileName (if none is specified, results.txt is the default)

Immediately following these two characters you must enter the parameters you wish to select for with NO SPACES.

Example Using ALL Parameters:
weleman %1 /m14-16 /i30-60 /e.0004-.004 /a6 /samateur.sel /otest.tle

In this example, the %1 is a place holder for a filename. If you drag and drop an element file on top of an icon representing this batch file then that filename will be substituted for the %1.  Notice the lowercase /x parameters. The program will convert them to uppercase automatically so case on these flags is not relevant. The order in which these parameters appear is irrelevant too. The string could have as easily been:

weleman /otest.tle %1 /i30-60 /e.0004-.004 /m14-16 /a6 /samateur.sel

The only important aspects to writing this command are to ensure that NO SPACES separate the /x command and the parameters following it. There are NO SPACES within the selection parameters, and that each selection item is separated from its neighbors by at least one blank space.

The rest of this command line breaks down as follows.

All satellites in the element file with mean motions greater than or equal to 14 revs/day and less than or equal to 16 revs/day will be picked out of the input file.

All satellites with inclinations greater than or equal to 30 degrees and less than or equal to 60 degrees will be picked out.

All satellites with eccentricities greater than  or equal to 0.0004 and less than or equal to 0.004 will be picked out.

All satellites with ages newer than 6 days old will be picked out.

All satellites in the input file that match satellites in the amateur.sel select file will be picked out.

All satellites that match ALL of the above criteria will then be written to the output file test.tle.

Once the output file is written, Element Manager Quits.