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Monster Media 1996 #15
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Monster Media Number 15 (Monster Media)(July 1996).ISO
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STSPLUS.KEY
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1996-04-04
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ACTIVE KEYS DURING GROUND TRACK DISPLAY
---------------------------------------
The following table lists the various keys which are active when the
ground track 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.
ALT-F1 Display orbital data for current satellite
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 F3 command. The F3 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 left of the screen in red. This feature operates in both
the normal (real or simulated time) and PAUSE modes.
F5 Switches the elapsed time between "T+Epoch" and "MET". 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 using the current simulated time. (NOTE:
To return to REAL TIME after the PAUSE mode, press ENTER after
leaving PAUSE to return to the Main Menu, then press F8+F1.)
F7 Enable or disable the spacecraft circle of visibility.
F8 Switches program operation between NORMAL and DOPPLER SHIFT
modes. (Orthographic projection only; see text for details.)
F9 Change units of distance between kilometers (km), nautical miles
(nm), and statute miles (sm).
F10 Change satellite coordinates between Altitude/Elevation and
Azimuth (Topocentric), Right Ascension and Declination
(Equatorial), and X-Y-Z (Geocentric Rectangular, also known as
ECI or Earth-Centered Inertial) coordinate systems. If a Target
Satellite has been selected, F10 may also be used to display
Relative Range and Velocity between the Primary and Target
Satellites.
F12 Select units of display for AOS and LOS. Cycles through countdown
clocks, UTC time, local time, and MET. If launch time has not
been set, MET AOS/LOS times will NOT be available.
+/= 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. The "=" key may
be used instead of "+" to avoid use of 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.
TAB In rectangular map modes only, 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 NORMAL OPERATION: When in one of the zoom modes, increases the
field of view (decreases MAG) up to a maximum of 180 degrees.
Press rapidly to execute multiple zoom steps without redrawing
the map for each keypress.
DOPPLER SHIFT MODE: Increases the "RECV" frequency by 1 KHz. Hold
down or press rapidly for large frequency changes.
PgDn NORMAL OPERATION: When in one of the zoom modes, decreases the
field of view (increases MAG) down to a minimum of 30 degrees.
Press rapidly to execute multiple zoom steps without redrawing
the map for each keypress.
DOPPLER SHIFT MODE: Decreases the "RECV" frequency by 1 KHz. Hold
down or press rapidly for large frequency changes.
Home NORMAL OPERATION: When in one of the zoom modes, returns the
field of view to 75 degrees (rectangular projections) or the full
globe (orthographic projections).
DOPPLER SHIFT MODE: Restores the UpLink and DnLink center
frequencies to the original values read from file STSPLUS.FRQ.
End NORMAL OPERATION: When in one of the zoom modes, returns the
field of view to the last zoom factor used prior to pressing the
HOME key.
DOPPLER SHIFT MODE: (not used and inactive)
UP NORMAL OPERATION: (not used and inactive)
DOPPLER SHIFT MODE: Increases the "RECV" frequency by 100 Hz.
Hold down or press rapidly for larger frequency changes.
DOWN NORMAL OPERATION: (not used and inactive)
DOPPLER SHIFT MODE: Decreases the "RECV" frequency by 100 Hz.
Hold down or press rapidly for larger frequency changes.
B Toggle the BLINK mode of the satellite symbol between blinking
and steady. NOTE: On most systems, the satellite symbol will
appear to blink very briefly as it is erased and redrawn even
when BLINK is OFF.
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 30 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 using the current 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.