;+ ; NAME: ; obsprop ; PURPOSE: ; Observing proposal planning table generation ; DESCRIPTION: ; ; CATEGORY: ; Astronomy ; CALLING SEQUENCE: ; obsprop,objcode,obs,date1,date2 ; INPUTS: ; objcode - String array of standard object codes (see ephem.pro) ; obs - Integer Marsden code of the observatory ; 688 - Lowell Observatory ; 500 - Geocentric ; If you provide an invalid code, 688 is assumed. ; date1 - UT date and time vector near midnight for first night, ; [year,month,day,hour] ; date2 - UT date and time vector near midnight for last night, ; ; OPTIONAL INPUT PARAMETERS: ; ; KEYWORD INPUT PARAMETERS: ; FILE - Override on file name where observatory codes are to be found. ; ; OUTPUTS: ; ; KEYWORD OUTPUT PARAMETERS: ; ; COMMON BLOCKS: ; ; SIDE EFFECTS: ; ; RESTRICTIONS: ; ; PROCEDURE: ; ; MODIFICATION HISTORY: ; Written by Marc W. Buie, Lowell Observatory, 1997/02/18 ;- PRO obsprop,objcode,obs,date1,date2,AMLIMIT=amlimit if n_params() eq 0 then begin print,'obsprop,objcode,obs,date1,date2' return endif if badpar(objcode,7,[0,1],CALLER='OBSPROP: (objcode) ') then return if badpar(obs,[2,3],0,CALLER='OBSPROP: (obs) ') then return if badpar(date1,[2,3,4,5],[0,1],CALLER='OBSPROP: (date1) ', $ npts=date1len) then return if badpar(date2,[2,3,4,5],[0,1],CALLER='OBSPROP: (date2) ', $ npts=date2len) then return ; Convert dates to JD. if date1len eq 4 then begin jdcnv,date1[0],date1[1],date1[2],date1[3],jd1 endif else begin print,'OBSPROP: length of date1 must be 4' return endelse if date2len eq 4 then begin jdcnv,date2[0],date2[1],date2[2],date2[3],jd2 endif else begin print,'OBSPROP: length of date2 must be 4' return endelse blanks=' ' if not keyword_set(file) then file='/pub/sac0/elgb/data/obscode.dat' rdobscod,code,alllon,rhosinp,rhocosp,obsname,FILE=file ; Fetch observatory information idx=where(obs eq code,count) idx=idx[0] if (count eq 1) then begin lon = (360.0-alllon[idx])/180.0*!pi lat = atan(rhocosp[idx],rhosinp[idx]) name=strtrim(obsname[idx],2) endif else begin ; Hardcoded position for 42" if code not recognized ; This is the GPS position for the 42", derived 1993 Sep 08 lat = (35.0+5.0/60.0+48.740/3600.0)/180.0*!pi lon = (111.0+32.0/60.0+10.601/3600.0)/180.0*!pi name = '42" at Anderson Mesa' endelse print,'Observatory ',name,' selected.' ; Set the critical altitude and airmass for observability. if keyword_set(amlimit) then $ amcrit=amlimit $ else $ amcrit=3.0 crital = 0.5*!pi - acos(1.0/amcrit) ; Compute ephemeris for object njd=fix(ceil(jd2-jd1))+1 jdeph = jd1 + (jd2-jd1)*dindgen(njd)/(njd-1) ephem,jdeph,obs,70,objcode,eph ssgeom,eph,sun,earth,phang,elong print,'Observability for ',naifname(objcode) print,' UT Date pre Rise len Set post' + $ ' Trnst X phang Sel Mel' FOR i=0,njd-1 DO BEGIN jd = jdeph[i] ; Sun position at input JD sunpos,jd,sunra,sundec sunra = sunra /180.0d0*!dpi sundec = sundec/180.0d0*!dpi moonpos,jd,moonra,moondec moonra = moonra /180.0d0*!dpi moondec = moondec/180.0d0*!dpi melong=sphdist(eph[0,i],eph[1,i],moonra,moondec)*180.0d0/!dpi ; Define night, Sun set to sun rise. am = airmass(jd,sunra,sundec,lat,lon,alt=alt,lha=lha,lst=lst) hatojd,!dpi,sunra,lst,jd,jdlclmid ; jd of nearest local midnight lsidtim,jdlclmid,lon,midlst ; LST at local midnight jdofmid = float(long(jdlclmid+0.5d0))-0.5d0 jdstr,jdofmid,100,thisdate ; Hour angle of Sun at sunset, AT, NT, CT altoha,-18.0/!radeg,sundec,lat,sunatha,sunattype altoha,-12.0/!radeg,sundec,lat,sunntha,sunnttype altoha,-6.0/!radeg,sundec,lat,sunctha,suncttype altoha,-0.5/!radeg,sundec,lat,sunhorzha,sunhorztype ; JD of sunset/sunrise, AT, NT, CT jdatset = jdlclmid - (!dpi-sunatha)/2.0d0/!dpi jdatrise = jdlclmid + (!dpi-sunatha)/2.0d0/!dpi jdntset = jdlclmid - (!dpi-sunntha)/2.0d0/!dpi jdntrise = jdlclmid + (!dpi-sunntha)/2.0d0/!dpi jdctset = jdlclmid - (!dpi-sunctha)/2.0d0/!dpi jdctrise = jdlclmid + (!dpi-sunctha)/2.0d0/!dpi jdsset = jdlclmid - (!dpi-sunhorzha)/2.0d0/!dpi jdsrise = jdlclmid + (!dpi-sunhorzha)/2.0d0/!dpi jdstr,jdsset,-12,jdssetstr jdstr,jdsrise,-12,jdsrisestr jdstr,jdatset,-12,jdatsetstr jdstr,jdatrise,-12,jdatrisestr jdstr,jdntset,-12,jdntsetstr jdstr,jdntrise,-12,jdntrisestr am = airmass(jd,sunra,sundec,lat,lon,alt=alt,lha=lha,lst=lst) hatojd,!dpi,sunra,lst,jd,jdlclmid lsidtim,jdlclmid,lon,midlst hatojd,0.0d0,eph[0,i],midlst,jdlclmid,jdtrans jdstr,jdtrans,-12,objtransstr transam = airmass(jdtrans,eph[0,i],eph[1,i],lat,lon,alt=transalt) altoha,crital,eph[1,i],lat,horzha,type if type eq 0 then begin jdrise = jdtrans - horzha/2.0d0/!dpi jdset = jdtrans + horzha/2.0d0/!dpi endif obswind,midlst,lat,eph[0,i],eph[1,i],jdntrise,jdntset,rtime,rkind, $ stime,skind,objtype if objtype ne -1 and objtype ne 2 then begin jdstr,rtime,-12,risestr jdstr,stime,-12,setstr prior = (rtime-jdntset)*24.0d0 post = (jdntrise-stime)*24.0d0 durat = (stime-rtime)*24.0d0 if prior lt 9.95 then $ priorstr = string(prior,format='(f3.1)') $ else $ priorstr = string(prior,format='(f3.0)') if durat lt 9.95 then $ duratstr = string(durat,format='(f3.1)') $ else $ duratstr = string(durat,format='(f3.0)') if post lt 9.95 then $ poststr = string(post,format='(f3.1)') $ else $ poststr = string(post,format='(f3.0)') print,strmid(risestr,0,11),priorstr,strmid(risestr,12,5), $ rkind+blanks,duratstr,strmid(setstr,12,5),skind+blanks,poststr, $ strmid(objtransstr,12,5),transam, $ phang[i], $ fix(ceil(elong[i])), $ fix(ceil(melong)), $ format='(a,1x,"(",a,")",1x,a,1x,a6,1x,"(",a,")",1x,a,1x,a7,1x,' + $ '"(",a,")",1x,a,1x,f3.1,1x,f5.1,1x,i3,1x,i3)' endif else begin jdstr,jdlclmid,-12,datestr print,strmid(datestr,0,11),' object never rises.' endelse ENDFOR END