NAME¶
seesat5 - provides satellite visibility information.
SYNOPSIS¶
seesat5 [
report ] [
go <Label> ] | [ <command>
... ]
DESCRIPTION¶
This program uses the sgp4 algorithm provided by NORAD to produce position
information on a satellite. Seesat5 can produce tracking information for one
satellite over a period of several days, or for a collection of satellites
over that period. By providing filter conditions seesat5 prints out only those
satellites you might have a chance to see rather than all the satellites that
pass above the horizon.
Seesat5 is typically run by placing control commands into an init file called
SEESAT5.INI. See seesat5 (7) for the description of these commands. If there
is no init file Seesat5 will present the operator with a '>' prompt where
commands can be entered. From the prompt seesat5 will begin analysis when
sufficient parameters have been entered to begin the run.
Seesat5 uses selection conditions to filter the data so that only high and
bright satellites are printed. Note that the selection conditions are used to
select whether or not the current passes data will be printed. If it is
printed, then the complete pass data is printed. ie. all data from when the
satellite comes over the horizon until it goes below.
For lines that satisfied ALL the selection conditions, a "+" sign is
printed as the first character.
Options¶
- report
- This option will disable printing of report records in the
output of the run. These include all command lines found in SEESAT5.INI or
entered from the command line or the prompt.
- go
- Followed by a label, this option causes branching within
the SEESAT5.INI to begin execution at the line following label. Branching
occurs when the cmdline command is executed in the SEESAT5.INI
file.
- command
- Most of the commands that can be found in SEESAT5.INI can
be entered on the command line. If you desire the SEESAT5.INI file to
execute after the command line be sure to make the last command RET.
FILES¶
- SEESAT5.INI
- The control file for seesat5
- *.tle
- Two line element files used by seesat5.
SEE ALSO¶
seesat5(7),
SEESAT5.INI(5),
tle(5),
cr(1)
BUGS¶
Seesat5 is not always able to check data integrity. Since computation and output
is driven by the data in the two line element, subtle errors in a tle can
cause floating point exceptions. In addition there are several commands that
do not work well together, like SHOWTLE and RUNTIME. Please report any
problems with seesat5 to Dale Scheetz <dwarf@polaris.net>.
