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82 lines
2.2 KiB
Fortran
82 lines
2.2 KiB
Fortran
subroutine astro0(nyear,month,nday,uth8,nfreq,mygrid,hisgrid, &
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AzSun8,ElSun8,AzMoon8,ElMoon8,AzMoonB8,ElMoonB8,ntsky,ndop,ndop00, &
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dbMoon8,RAMoon8,DecMoon8,HA8,Dgrd8,sd8,poloffset8,xnr8,dfdt,dfdt0, &
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width1,width2,w501,w502,xlst8)
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parameter (DEGS=57.2957795130823d0)
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character*6 mygrid,hisgrid
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real*8 AzSun8,ElSun8,AzMoon8,ElMoon8,AzMoonB8,ElMoonB8
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real*8 dbMoon8,RAMoon8,DecMoon8,HA8,Dgrd8,xnr8,dfdt,dfdt0,dt
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real*8 sd8,poloffset8,day8,width1,width2,w501,w502,xlst8
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real*8 uth8
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data uth8z/0.d0/
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save
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uth=uth8
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call astro(nyear,month,nday,uth,nfreq,hisgrid,2,1, &
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AzSun,ElSun,AzMoon,ElMoon,ntsky,doppler00,doppler, &
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dbMoon,RAMoon,DecMoon,HA,Dgrd,sd,poloffset,xnr, &
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day,xlon2,xlat2,xlst)
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AzMoonB8=AzMoon
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ElMoonB8=ElMoon
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call astro(nyear,month,nday,uth,nfreq,mygrid,1,1, &
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AzSun,ElSun,AzMoon,ElMoon,ntsky,doppler00,doppler, &
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dbMoon,RAMoon,DecMoon,HA,Dgrd,sd,poloffset,xnr, &
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day,xlon1,xlat1,xlst)
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day8=day
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xlst8=xlst
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call tm2(day8,xlat1,xlon1,xl1,b1)
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call tm2(day8,xlat2,xlon2,xl2,b2)
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call tm2(day8+1.d0/1440.0,xlat1,xlon1,xl1a,b1a)
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call tm2(day8+1.d0/1440.0,xlat2,xlon2,xl2a,b2a)
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fghz=0.001*nfreq
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dldt1=DEGS*(xl1a-xl1)
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dbdt1=DEGS*(b1a-b1)
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dldt2=DEGS*(xl2a-xl2)
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dbdt2=DEGS*(b2a-b2)
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rate1=2.0*sqrt(dldt1**2 + dbdt1**2)
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width1=0.5*6741*fghz*rate1
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rate2=sqrt((dldt1+dldt2)**2 + (dbdt1+dbdt2)**2)
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width2=0.5*6741*fghz*rate2
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fbend=0.7
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a2=0.0045*log(fghz/fbend)/log(1.05)
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if(fghz.lt.fbend) a2=0.0
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f50=0.19 * (fghz/fbend)**a2
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if(f50.gt.1.0) f50=1.0
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w501=f50*width1
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w502=f50*width2
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AzSun8=AzSun
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ElSun8=ElSun
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AzMoon8=AzMoon
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ElMoon8=ElMoon
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dbMoon8=dbMoon
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RAMoon8=RAMoon/15.0
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DecMoon8=DecMoon
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HA8=HA
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Dgrd8=Dgrd
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sd8=sd
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poloffset8=poloffset
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xnr8=xnr
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ndop=nint(doppler)
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ndop00=nint(doppler00)
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if(uth8z.eq.0.d0) then
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uth8z=uth8-1.d0/3600.d0
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dopplerz=doppler
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doppler00z=doppler00
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endif
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dt=60.0*(uth8-uth8z)
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if(dt.le.0) dt=1.d0/60.d0
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dfdt=(doppler-dopplerz)/dt
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dfdt0=(doppler00-doppler00z)/dt
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uth8z=uth8
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dopplerz=doppler
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doppler00z=doppler00
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return
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end subroutine astro0
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