mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-13 23:51:49 -05:00
33 lines
674 B
Fortran
33 lines
674 B
Fortran
|
subroutine grayline(nyear,month,nday,uth,mygrid,nduration,isun)
|
||
|
|
|
||
|
|
character*6 mygrid
|
||
|
|
real LST
|
||
|
|
real lat,lon
|
||
|
|
|
||
|
|
call grid2deg(MyGrid,elon,lat)
|
||
|
|
lon=-elon
|
||
|
|
|
||
|
|
uth0=uth-0.5*nduration/60.0
|
||
|
|
uth1=uth+0.5*nduration/60.0
|
||
|
|
|
||
|
|
call sun(nyear,month,nday,uth0,lon,lat,RASun,DecSun,LST, &
|
||
|
|
AzSun,ElSun0,mjd,day)
|
||
|
|
call sun(nyear,month,nday,uth1,lon,lat,RASun,DecSun,LST, &
|
||
|
|
AzSun,ElSun1,mjd,day)
|
||
|
|
|
||
|
|
elchk=-0.8333
|
||
|
|
isun=-1
|
||
|
|
if(elsun0.lt.elchk .and. elsun1.ge.elchk) then
|
||
|
|
isun=0
|
||
|
|
else if(elsun0.gt.elchk .and. elsun1.le.elchk) then
|
||
|
|
isun=2
|
||
|
|
else if(elsun1.gt.elchk) then
|
||
|
|
isun=1
|
||
|
|
else
|
||
|
|
isun=3
|
||
|
|
endif
|
||
|
|
|
||
|
|
return
|
||
|
|
end subroutine grayline
|
||
|
|
|