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STSPLUS.KEY
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1992-12-12
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ACTIVE KEYS DURING GROUND TRACK DISPLAY
---------------------------------------
The following table lists the various keys which are active when the
tracking display is shown on the screen. Some of these features are more
fully described elsewhere.
ENTER Return to Main Menu (cancel the simulation).
F1 On-line HELP. Press F1 to display a help screen in the lower
portion of the screen. Press F1 again to resume normal data
display.
F2 Selects the Big Clock mode. These modes are selected in the
following order:
0 No clock displayed
1 UTC date and time
2 Local date and time
3 STN/TDRS AOS/LOS and MET or T+Epoch (select with F5)
Note that not all computers (especially older CGA systems) will
display the extended graphics characters used for the large clock
characters. The symptom of this problem is that the lower left
portion of the data block is mostly blank after pressing F2. If
you have this problem and your computer is running DOS 3.x or DOS
5.0, enter the command "GRAFTABL" at the DOS prompt before
running STSPLUS or include the line "GRAFTABL" in your
AUTOEXEC.BAT file; this sets the "code page" to enable the
computer to display the extended graphics characters. [The
program GRAFTABL.COM is included as part of DOS in most cases.]
F3 Enable or disable printer logging. If logging is enabled, the
word LOG appears in the lower right of the screen. Be sure the
printer is turned on BEFORE using the L command. The "L" command
automatically enables the display of ascending and descending
node information.
F4 Toggle FAST mode from x1 to x10 to x60 to x1, etc. When either of
the fast modes is enabled, "(x10)" or "(x60)" will appear at the
upper right of the data block in red. This feature operates in
both the normal (real or simulated time) and PAUSE modes. When
x10 or x60 fast modes are used, automatic map generation is
disabled; use the TAB key to restore automatic map generation.
F5 When using 2-line elements, the elapsed time may be switched
between "T+Epoch" and "MET" by using the "T" command. If no
launch time and date have been entered, this command will have no
effect.
F6 Enable PAUSE mode. The plot is frozen at the current position and
the "+" and "-" keys are enabled. (The "=" key may be used
instead of the "+" key to avoid use of the SHIFT KEY.) Press
ENTER to resume normal operation.
F7 Enable or disable the spacecraft circle of visibility.
F8 Enable or disable the SUN, solar terminator, and spacecraft
lighting feature. NOTE: The SUN and spacecraft lighting are not
available on CGA systems.
F9 Change units of distance between kilometers (km) and nautical
miles (NM).
F10 Change satellite coordinates between Altitude and Azimuth, Right
Ascension and Declination, and Geocentric Rectangular (XYZ)
systems.
+ During PAUSE mode only, moves the satellite to the NEXT
calculated position based upon the FAST mode then in effect:
simulated time is advanced 1, 10, or 60 seconds. (NOTE: The "="
key may be used instead of "+" to avoid the SHIFT KEY.)
- During PAUSE mode only, moves the satellite to the PREVIOUS
calculated position based upon the FAST mode then in effect:
simulated time is backed up 1, 10, or 60 seconds.
NOTE: Since this "-" or reverse feature was implemented primarily
for testing and demonstration, the ground track logic does not
recognize these reverse movements and may become slightly
confused. To restore the ground track properly, press ENTER TWICE
to stop the display and then to resume the mission.
TAB Enable or disable automatic map generation. Automatic map
generation is ALWAYS enabled in orthographic modes. When
automatic map generation is enabled in rectangular map modes, the
letter "A" will appear in the upper right of the display screen.
Pressing the TAB key will always cause the map to be redrawn.
PgUp When in one of the zoom modes, increases the field of view up to
a maximum of 180 degrees. Press rapidly to execute multiple zoom
steps without redrawing the map for each keypress.
PgDn When in one of the zoom modes, decreases the field of view down
to a minimum of 45 degrees. Press rapidly to execute multiple
zoom steps without redrawing the map for each keypress.
Home When in one of the zoom modes, returns the field of view to 75
degrees.
End When in one of the zoom modes, returns the field of view to the
last zoom factor used prior to pressing the HOME key.
B Toggle the BLINK mode of the satellite symbol between blinking
and steady.
O Select Orthographic Projection (the LETTER "O" not the digit
zero). PgUp, PgDn, Home, and End are active to select the
magnification.
W,0 Select World Map display, showing the full world from +85 degrees
North latitude to -85 degrees South latitude using rectangular
projection. If automatic map generation is disabled, pressing "W"
or "0" will toggle between the two world map displays.
Q Select Quadrant Map display, showing 180 degrees field of view
(rectangular projection) and selected so as to approximately
center the satellite.
1-9 Select the indicated Quadrant Map. Automatic map generation is
!@# disabled when a specific quadrant map is selected. See the chart
in the section Quadrant Maps for the map numbers.
Z Select Zoom Map display, showing from 180 to 45 degrees field of
view (rectangular projection) and selected so as to approximately
center the satellite. The default is 75 degrees.
L Select Location Map display, showing concentric isocontours for
your location. If a second location has been enabled, press "L"
again for that location.
T Tracking Station Map display, showing concentric isocontours for
the tracking station closest to the current ground track position
of the satellite (rectangular projection). Uses the data in the
current TRACKING STATION file to select the tracking station(s);
if the file is not found, STSPLUS defaults to an internal set of
tracking stations. Use F7 from the Main Menu to select the
TRACKING STATION filename.
M Satellite Motion Map display, available on EGA and VGA systems
only. Displays a map with the satellite centered using the map
projection in effect when the key is pressed. In rectangular
modes, the map is shown in zoom. Maps are drawn "off screen" and
a complete map is always displayed. The map is updated every 10
seconds or as rapidly as the computer processor will permit.
While the Satellite Motion Map is displayed, the following keys
are active: ENTER, "M", "Home", "End", "PgUp", and "PgDn"; these
keys perform the same functions as during the normal display
except that the "M" key cancels the Satellite Motion Map and
returns to normal display.