FTN77,S $FILES 2,2 PROGRAM OBCAL (3,80) *************************** * * VERSION TO RUN UNDER SCHDL TO OBSERVE CALIBRATORS * SINGLE BEAM AT ALL FREQUENCIES * * PROGRAM TO STEP AROUND ALL BEAMS IN DEC AND RA * * SOURCES READ FROM A SOURCE FILE. * * Added 40 mdeg to all RAOFS on 1985/08/01 D213 * New feed positions 1985/08/07. Changed RAOFS DEOFS D 232 * 3.6 and 6 cm DEOFS changed 1986/08/29 d241 * 3.6 cm new feeds and offsets D349/1986 15 12 86 * 6 cm DEOFS changed from -.556 to -.552 2 7 87 d183 * * NB New feed positions for 6 1nd 3.6 cm as from 21-05-88 * d 141 * NEW FEED OFFSETS 13S, 18S, 6D 3.6D AS OF 29 MAR 1990 * 18S,6D & 3.6D UPDATED 1990 OCT 31 * ALL UPDATED 10/7/91 * UPDATED TO READ FROM SYAPRM::16 USING STANDARD &RDSYS::16 * 5/4/94 BY JFHQ * * TUFLUX AT 18CM CHANGED FROM 117 TO 403 ON D336/92 * FUNT18 " " " " 147 " " 506 " * * Use of Fluke 8840 DVM 1985/10/24 * Writing ST to file hkeeping from D195/86 ie 14/7/86 * Change to meas of CE at end of 1st beam, instead of 2nd D205/86 * * COPY OF TNSTP AT 1991/11/12 D316 * some blank lines removed from printout to save paper MJG 1993 09 05 * added synthesizer setting code for spectral line usage JFHQ 1996 04 23 * WRITTEN BY DCB 1982/04/30 UPDATED <960423.1538> * ********************************************************************* * PARAMETER ( NFRQ=6 ) * CHARACTER CPLACE(20)*2, NAMRFL*10, stathy*2 * LOGICAL AOK, START, CHK, HKEEP, PROB, NEXT, FIRE, * RPTFQ, CONSRA, DUALBM, WVTB, CALSRS, IFBRK, * NO3P4, BELOW * INTEGER ITIME(5), IPRAM(5), FILNAM(3), SWIN, DPRC2(3), * FDCB(144), SORSBF(40), SORSNM(5), IANG(5), * RESFIL(3), IDCB(272), IDUMY(2), ERSORS(10), IAB(2) * CHARACTER SYSTEM(NFRQ)*4 * REAL FNOFS(NFRQ), HPOFS(NFRQ), RAOFS(NFRQ), * DEOFS(NFRQ), WAVE(NFRQ), TUFLUX(NFRQ), * BMSEP(NFRQ), ERWAV(10), ERSQAV(10), MEDTB, MEDVM, * SFLUX(20), SERR(20), DVM(20), CALK(NFRQ) * COMMON / CBOTH / SORSJY, ERROR, MEDTB, TBDEV, MEDVM, NEXT, FIRE, * HKEEP, PROB, SORSNM, KPLACE, IDCB, NSORS, * I, ITIME, IYEAR, RPTFQ, ERSORS, ERWAV, * KERR, ERSQAV, CALSRS, IDCBS, TUBNET * EQUIVALENCE (REG,IAB(1)), * (RAP, IANG(1)), (DECP, IANG(3)) * * FNOFS is the angular offset of beam FIRST NULLS. * HPOFS " " " " " " HALF POWER points. * FNOFS and HPOFS are measured from the beam peak. * RAOFS, DEOFS are the offsets of the FEEDS. * Measured to beam peak (single beam) - now from SYPARM::16 * * BMSEP is the angular separation (peak to peak) of dual beams * * TUFLUX is the NOISE TUBE equivalent flux in Jansky. * FUNT18 is the 18cm TUFLUX value for UNtilted subreflector. * * ISIZE, ITYPE, ISECU, ICR refer to the RESULTS FILE. * Results are written on to RESFIL which has form BSday. * * HALIM is the Hour Angle limit for acceptable data * DATA SYSTEM/ ' 6S', '3.6S', ' 13S', ' 18S', '2.5S', '4.5S'/, * WAVE / 6.1, 3.4, 13.0, 18.0, 2.5, 4.5 /, * FNOFS / 0.18, 0.115, 0.393, 0.559, 0.071, 0.121/, * HPOFS / 0.082, 0.048, 0.166, 0.232, 0.035, 0.062/, C---------------------- Now picked up from SYPARM::16 ------------------- * RAOFS / 0.569, 0.015, 0.071, 0.096, -0.395, -0.458/, * DEOFS / -0.214, -0.603, 0.413, 0.904, 0.220, -0.112/, C------------------------------------------------------------------------ * BMSEP / 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 /, * TUFLUX/ 200.0, 175.0, 40.2, 403.0, 4440., 1200./, * FUNT18/ 506.0 /, * ISIZE / 5 /, ITYPE / 3 /, ISECU / 0 /, ICR / 15 /, * RESFIL / 2HBS, 2H00, 2H /, * HALIM / 5.4 /, * CHK / .FALSE. /, LU / 7 /, * DPRC2 / 2HDP, 2HRC, 2H2 /, * filnam / 6HSHCALS /, nfirst / 1 / * call rmpar(ipram) * * Initialise resources * CALL FSYSU (LU, LU) PRINT '(A1)', CHAR(14B) ! Form feed * * Set to zero the counter of the number of completed tracks. * KERR counts if largest no. out of DVM exceeds limit s.t. * program gives only 5 significant figures (2exp23-1)*10 NUMTRK = 0 NSETS = 0 KERR = 0 RPTFQ = .FALSE. IDCBS = 256 * * If bit 15 has been set by previous program, reset it. * If (issw(15) .lt. 0) then iswit = swin(0) iswit = iswit .and. 077777B call swout(iswit) endif * * Ensure all Noise Diodes are off so calibration works * CALL EXEC (2, 113B, 0, 1, 3, 3) * * Print suitable Program Header * CALL EXEC(11,ITIME,IYEAR) WRITE (LU,1000) ITIME(5),IYEAR 1000 FORMAT( 3X,"ON/OFF TRACKING PROGRAM (OBCAL) : DAY ",I3,",",I4 * /3X,38"=") C * /3X,"THIS VERSION STEPS AROUND single ALL BEAMS", C * /3X," Source file must use 1950.0 coordinates. ", C * /3X," Set S register bit 0 ON to suspend 3.4 cm readings" C * /22X," 1 ON to suspend 6.1 cm readings," C * /22X," 2 ON to suspend 13.0cm readings" C * /22X," 3 ON to suspend 18.0cm readings" C * /22X," 4 ON to suspend 2.5 cm readings," C * /22X," 5 ON to suspend 4.5 cm readings," C * /22X," 9 ON to repeat current FREQ." C * /22X," 10 ON to repeat current SOURCE " C * /22X," 13 ON to SUSPEND the program" C * /22X," 14 ON to SKIP the next source " C * /22X," 15 ON to END PROGRAM." ) * * Read the hyperbola focus and tilt to decide which offsets * to use for the 18 cm feeds. * call rhyp (focus, tilt) * If (tilt .gt. 0.0) then stathy = ' ' else stathy = 'UN' SYSTEM(4) = ' 18U' TUFLUX(4) = FUNT18 endif * print '("Hyperbola focus ", F6.2," cm. Tilt ", F6.2, * " V.",/, * " i.e. hyperbola is ",A2,"TILTED.")', * focus, tilt, stathy * * Pick up beam offsets from SYPARM::16 using standard &RDSYS::16 * do 111 ibo = 1,NFRQ call RDSYS (ibo, SYSTEM, RAOFS, DEOFS, CALK) 111 continue * * Obtain the UNIVERSAL TIMES of Sunrise and Sunset and convert * to decimal. * CALL SUNTM (ITIME(5), IHSET, MSET, IHRIS, MRIS, * RASUN, DECSUN, *900,k) SUNSET = FLOAT(IHSET) + (FLOAT(MSET)/60.) SUNRIS = FLOAT(IHRIS) + (FLOAT(MRIS)/60.) * WRITE (LU,1250) SUNSET, SUNRIS 1250 FORMAT(" UT of sunset and sunrise in DECIMAL hrs : ",2F6.2) * * Subtract half hour from sunrise time so that END of measure * is before sunrise. SUNRIS = SUNRIS - 0.2 * * Convert to seconds. SUNRIS = SUNRIS * 3600. SUNSET = SUNSET * 3600. * WRITE (LU,3150) (FILNAM(J), J=1,3), ipram(1) 3150 FORMAT( 3X," Using source file ",3A2, * 1X," 1950.0 coordinates ", * 1X," Starting at source ",I4) * * OPEN SOURCE FILE. If not found negative error IERR is returned. * CALL OPEN (FDCB,IERR,FILNAM) IF (IERR .GT. 0) GO TO 350 WRITE (LU,3200) IERR 3200 FORMAT(" FILE NOT FOUND, FMP ERROR ",I6) GO TO 900 * * File opened successfully. Close again temporarily. 350 CALL CLOSE (FDCB,IERR) START = .TRUE. * * Derive name of results file, RESFIL. * IF ( ITIME(5) .GE. 100 ) GO TO 380 IF ( ITIME(5) .GE. 10 ) GO TO 370 * CALL CODE WRITE (IDUMY,3300) RESFIL(2), ITIME(5) 3300 FORMAT( A2, I1) GO TO 390 * 370 CALL CODE WRITE (IDUMY,3400) RESFIL(2), ITIME(5) 3400 FORMAT( A1, I2) GO TO 390 * 380 CALL CODE WRITE (IDUMY,3500) ITIME(5) 3500 FORMAT( I3) * 390 CALL CODE WRITE (RESFIL, 3600) RESFIL(1), (IDUMY(J), J=1,2) 3600 FORMAT(2A2,A1) * WRITE (NAMRFL, '(3A2,A2,A2)') (RESFIL(L),L=1,3),'::', ICR * * Open file, if it exists. 810 CALL OPEN (IDCB, IERR, RESFIL, IDCBS) * * Otherwise create file. IF (IERR .EQ. -006) GO TO 820 IF (IERR .GE. 0) GO TO 825 * * Close and write error. 815 CALL CLOSE (IDCB) WRITE (LU,8400) IERR, (resfil(l), l=1,3) 8400 FORMAT(/" FMGR ERROR ",I4," in opening ", 3A2) GO TO 900 * * Create file. 820 CALL CREAT (IDCB, IERR, RESFIL, ISIZE, ITYPE, ISECU, ICR,IDCBS) IF (IERR .LT. 0) GO TO 815 * 825 CALL CLOSE (IDCB) WRITE (LU,8500) (RESFIL(L), L=1,3) 8500 FORMAT( 3X," Results are in disc file ",3A2) * * Read the parameters of 1 source. Close the file after reading. * * START OF LOOP FOR EACH SOURCE. * 500 CONTINUE * * Check if BIT 15 has been set * IF(ISSW(15) .LT. 0) GO TO 900 * NREC = ipram(1) * * Bit 14 set for skip to next source. 512 IF (ISSW(14) .GE. 0) GO TO 515 * * Reset bit 14 ISWIT = SWIN(0) ISWIT = ISWIT .AND. 137777B CALL SWOUT(ISWIT) GO TO 500 * 515 CALL OPEN (FDCB,IERR,FILNAM) IF(IERR .GE. 0) GO TO 520 WRITE (LU,3200) IERR GO TO 900 * * Position pointer in file -then read line of ASCII data * 520 CALL POSNT(FDCB,IERR,NREC,1) CALL READF(FDCB,IERR,SORSBF,40,LEN) * IF (IERR .GE. 0) GO TO 530 WRITE (LU,5110) IERR, NREC 5110 FORMAT (" FILE ERROR ",I6," AT LINE ",I6," PROGRAM ENDS ") GO TO 900 * 530 IF( START .AND. LEN .LE. 0) GO TO 532 * GO TO 535 532 WRITE (LU,5120) 5120 FORMAT (" SOURCE NUMBER NOT FOUND ") nrec = 1 go to 512 * 535 IF( LEN .GT. 0) GO TO 540 * WRITE (LU,5130) 5130 FORMAT (" END OF SOURCE FILE. RETURN TO No. 1"//) * NREC = 1 GO TO 512 * * Convert the ASCII data off the source file to BINARY * 540 CALL CODE READ (SORSBF,5200) NSORS, SORSNM, RH, RM, RS, * DD, DM, DS, CALSRS, NO3P4 5200 FORMAT(I3, 5A2, F2.0, F3.0, F5.1, F4.0, 2F3.0, L2, L1) * * Close file after source has been found 560 CALL CLOSE (FDCB,IERR) START = .FALSE. * * Calculate source coordinates RA0,DEC0 (ie. 1950) in decimal degrees * RA0 = (( RH*60.0 + RM ) * 60.0 + RS)/240.0 IF( DD .NE. 0.0 ) GO TO 580 DD = 0.00001 IF (( SORSBF(13) .AND. 77400B) .EQ. 26400B) DD = -DD 580 DM = SIGN(DM,DD) DS = SIGN(DS,DD) DEC0 = DD + DM/60.0 + DS/3600.0 IF ( DEC0 .GT. 270.0) DEC0 = DEC0 - 360.0 * * Precess coords to current time * RAP = RA0 DECP = DEC0 CALL EXEC (9,DPRC2,IANG(1),IANG(2),IANG(3),IANG(4),IANG(5)) CALL RMPAR (IANG) * * Check offset of source from sun * CALL CLOSN (RAP, DECP, RASUN, DECSUN, NSORS, *512,ksun) * * Obtain and print SIDERIAL TIME. * STNOW = TIME(2) ISTH = STNOW / 3600.0 ISTM = (STNOW - FLOAT(ISTH) * 3600.0) / 60.0 ISTS = STNOW - FLOAT(ISTH) * 3600.0 - FLOAT(ISTM) * 60.0 * WRITE (LU,5900) ISTH, ISTM, ISTS 5900 FORMAT( 3X,'Siderial time: ',I3,'H',I3,'M',I3,'S') * * Check the source HA. Skip or wait as necessary. * RAHRS = RAP / 15. SIDHRS = STNOW / 3600. HA = SIDHRS - RAHRS IF ( HA .GT. 12. ) HA = HA - 24. IF ( HA .LT. -12.) HA = HA + 24. * * Compare with limiting value * HA = HA * 15. ! Subroutine uses degrees CALL LIMIT (HA, DECP, BELOW) HA = HA / 15. * If ( BELOW ) then * WRITE (LU,5950) NSORS, HA 5950 FORMAT(/,"Source",I4," HA",F6.2,"below horizon", * "GO TO NEXT SOURCE") * nrec = nrec + 1 go to 512 endif * * Print source file information and headers for each track. * 600 WRITE (LU,6000) 6000 FORMAT(/1X," NO. SOURCE RA DEC Cal? 3.4? ") WRITE (LU,6100) 6100 FORMAT(1X,"_") CALL EXEC (2,LU,SORSBF,LEN) * * Print HEADERS for each track * WRITE (LU,6200) 6200 FORMAT( /8X," FREQ PLACE START TRACK AT",12X,"FLUX"/ * 8X," USED(cm) TRACKED RA",7X,"DEC",6X,"TIME",8X,"(Jy)" * /8X,8"=",2X,7"=",1X,7"=",2X,7"=",2X,8"=",4X,7"=") * * Write housekeeping on results file. * HKEEP = .TRUE. CALL WINFO (LU, NFRQ, RESFIL, WVTB, WAVE, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL, *900,k) HKEEP = .FALSE. IF ( PROB ) GO TO 900 GO TO 698 * * Start point for repeat of source. * Reset bit 10 ie cancel source repeat. 690 ISWIT = SWIN(0) ISWIT = ISWIT .AND. 175777B CALL SWOUT(ISWIT) * * START OF LOOP FOR EACH FREQUENCY. * 698 NSETS = NSETS + 1 * DO 700 I=1,NFRQ * * Bits 0, 1, 2, 3, 4, 5 set for skip, respectively, * 3.4, 6.1, 13.0, 18.0, 2.5, 4.5 cm. measurements * ISWIT = SWIN(0) ISWIT = ISWIT .AND. 000077B GO TO (702, 701, 703, 704, 705, 706) I * 701 ISWIT = ISWIT .AND. 1B IF ( ISWIT .EQ. 1B ) GO TO 700 GO TO 711 702 ISWIT = ISWIT .AND. 3B IF ( ISWIT .GE. 2B ) GO TO 700 GO TO 711 703 ISWIT = ISWIT .AND. 7B IF ( ISWIT .GE. 4B ) GO TO 700 GO TO 711 704 ISWIT = ISWIT .AND. 17B IF ( ISWIT .GE. 10B) GO TO 700 GO TO 711 705 ISWIT = ISWIT .AND. 37B IF ( ISWIT .GE. 20B) GO TO 700 GO TO 711 706 ISWIT = ISWIT .AND. 77B IF ( ISWIT .GE. 40B) GO TO 700 * 711 CONTINUE * PRINT '("Beam offsets at ", F4.1," cm. RA and Dec resp.", * 2F8.3)', wave(i), raofs(i), deofs(i) * * Set up appropriate syntheisizer frequency * call DOSYNTH(SYSTEM(I),IPRAM(2)) * * Calculate antenna coords for each track and then track source. * * * Correct for BEAM OFFSETS ONRA = RAP + RAOFS(I)/COS(DECP*0.017453293) ONDEC= DECP + DEOFS(I) * * Correction factor to RA due to DECLINATION CORDEC = COS(ONDEC * 0.017453293) SEPFAC = (BMSEP(I)/2.)/CORDEC * GO TO 715 * * Start point for repeat of particular freq. * Reset bit 9 ie. cancel freq repeat. * 710 ISWIT = SWIN(0) ISWIT = ISWIT .AND. 176777B CALL SWOUT (ISWIT) * 715 CONTINUE * SEPFAC = -1. * SEPFAC * * TRACKING AT FIRST NULL. * Calculate coordinates: * TRA = ONRA - SEPFAC TDEC= ONDEC + FNOFS(I) KPLACE = 2HFN * FIRE = .TRUE. CONSRA = .FALSE. WVTB = .TRUE. * * Print source information. * Track the source, print time antenna settles and track * for required length of time- set in DATA statement. * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * CONSRA is set TRUE when the RA is constant for consecutive tracks CONSRA = .TRUE. * * TRACKING AT HALF POWER POINTS. * Calculate coodinates * TRA = ONRA - SEPFAC TDEC= ONDEC + HPOFS(I) KPLACE = 2HHP * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * TRACK ON SOURCE ie. at antenna beam peak. * TRA = ONRA - SEPFAC TDEC = ONDEC KPLACE = 2HON * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * TRACK AT HALF POWER * * TRA = ONRA - SEPFAC TDEC= ONDEC - HPOFS(I) KPLACE = 2HHP * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * * TRACK AT FIRST NULL. * TRA = ONRA - SEPFAC TDEC= ONDEC - FNOFS(I) KPLACE = 2HFN * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * Track at HP and FN pts offset in RA * TRA = ONRA - SEPFAC - FNOFS(I)/CORDEC TDEC = ONDEC KPLACE = 2HFN CONSRA = .FALSE. * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * TRA = ONRA - SEPFAC - HPOFS(I)/CORDEC TDEC = ONDEC KPLACE = 2HHP CONSRA = .FALSE. * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * TRACK ON SOURCE ie. at antenna beam peak. * TRA = ONRA - SEPFAC TDEC = ONDEC KPLACE = 2HON * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * TRA = ONRA - SEPFAC + HPOFS(I)/CORDEC TDEC = ONDEC KPLACE = 2HHP * CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * TRA = ONRA - SEPFAC + FNOFS(I)/CORDEC TDEC = ONDEC KPLACE = 2HFN CALL DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) IF ( NEXT ) GO TO 700 IF ( PROB ) GO TO 900 * * Write fluxes etc from each position to file RESFIL * CALL WRTFL (NAMRFL, CPLACE, SFLUX, SERR, DVM, * NL, HKEEP, WVTB, RPTFQ, *900,k) * * Write out used value of noise tube in DVM units PRINT '("Noise tube ",F12.4," DVM units.", * " Assuming tube equivalent flux ",F8.2," Jy")', * TUBNET, tuflux(i) * * Bit 13 set for repeat of current frequency. * RPTFQ = .FALSE. IF ( ISSW(9) .GE. 0) GO TO 700 RPTFQ = .TRUE. GO TO 710 * 700 CONTINUE * * Bit 14 set for repeat of current source. * IF ( ISSW(10) .LT. 0) GO TO 690 * 900 CONTINUE * IF (KERR .EQ. 0) GO TO 910 * C WRITE (LU,9960) C9960 FORMAT(/," Limit for 6 sig fig accuracy exceeded at:"/ C * " Source no. Wave. Value. ") C DO 905 KKK = 1,KERR C C IF ( KKK .LE. 10 ) GO TO 904 C WRITE (LU,9965) KERR C9965 FORMAT(" Limit exceeded >10 times ...", I3, C * " times, in fact. ") C GO TO 906 C 904 WRITE (LU,9970) ERSORS(KKK), ERWAV(KKK), C * ERSQAV(KKK) C9970 FORMAT(6X, I4, 8X, F6.1, 5X, G12.6) C 905 CONTINUE * 906 CONTINUE C WRITE (LU,9975) C9975 FORMAT(" If Source no. is >1000, error occurred" C * " in reading TUBE."/ C * " Subtract 1000 to get source no.") * 910 CONTINUE C WRITE (LU,9980) NUMTRK C9980 FORMAT(" Number of tracks performed:", I4) C WRITE (LU,9990) NSETS C9990 FORMAT(" Total number of sets of readings obtained:",I4) * WRITE (LU,9999) 9999 FORMAT(" *** END *** ") 1080 FORMAT(L6) END * * ********************************************************************* * * SOURCE TRACKING SUBROUTINE * Directly from MJG's VLBI2. See that program for details. * ********************************************************************* * $ALIAS/POINT/,NOALLOCATE SUBROUTINE TRACK (LU,INTYPE,DLONG,DLAT, CONSRA) * LOGICAL LNGSCN, LATSCN, HASTOP, DECSTP, CONSRA INTEGER MES(12), CMDCLS, TSETL COMMON /POINT/ LOGCLS, CMDCLS EQUIVALENCE (MES(1),ALONG), (MES(3),ALAT), * (MES(5),ITYPE), (MES(6),CMDTIM), * (MES(8),LNGSCN), (MES(9),LATSCN), * (MES(10),HASTOP), (MES(11),DECSTP), * (MES(12),NWAKE) * DATA LNGSCN, LATSCN, HASTOP /3* .FALSE. /, * DECSTP / .TRUE. / * NCMD = CMDCLS ITYPE = INTYPE ALONG = DLONG ALAT = DLAT * * Negative track time: Tracks for up to 1 hour, INTERRUPTIBLE. CMDTIM = -1.0 * * Allocate and lock RESOURCE NUMBER NWAKE globally. CALL RNRQ (12B,NWAKE,ISTAT) * * Pass message to COMND to go to position and track CALL EXEC (20,0,MES,12,0,0,NCMD) * * Lock, clear NWAKE to suspend here until on position * When woken by COMND CALL RNRQ (5B,NWAKE,ISTAT) * * Deallocate NWAKE CALL RNRQ (40B,NWAKE,ISTAT) * * Suspend for 52s while antenna settles, if RA changed: * otherwise wait for 12s. * TSETL = 52 IF ( CONSRA ) TSETL = 12 200 CALL EXEC (12,0,2,0,-TSETL) RETURN END * ********************************************************************* * * SUBROUTINE TO TRACK SOURCE, PRINT SOURCE INFO,SETTLING TIME AND * STAY ON SOURCE FOR REQUIRED TIME. * Uses subroutines TRACK, FLUX, WINFO * ********************************************************************** * SUBROUTINE DOTRK (TRA, TDEC, NUMTRK, WVTB, WAVE, * LU, NFRQ, TUFLUX, RESFIL, CONSRA, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL) * CHARACTER CPLACE(20)*2, NAMRFL*10 * LOGICAL NEXT, PROB, HKEEP, FIRE, RPTFQ, CONSRA, WVTB, CALSRS * INTEGER TIMON(5), RESFIL(3), ITIME(5), SORSNM(5), * IDCB(272), ERSORS(10) * REAL WAVE(1), TUFLUX(1), ERWAV(10), ERSQAV(10), MEDTB, MEDVM, * SFLUX(20), SERR(20), DVM(20) * COMMON / CBOTH / SORSJY, ERROR, MEDTB, TBDEV, MEDVM, NEXT, FIRE, * HKEEP, PROB, SORSNM, KPLACE, IDCB, NSORS, * I, ITIME, IYEAR, RPTFQ, ERSORS, ERWAV, * KERR, ERSQAV, CALSRS, IDCBS, TUBNET * NUMTRK = NUMTRK + 1 * WRITE (LU,1000) WAVE(I), KPLACE, TRA, TDEC 1000 FORMAT(9X, F5.1, 6X, 1A2, 4X, F7.3, 2X, F7.3,"_") * CALL TRACK (LU, 4, TRA, TDEC, CONSRA) CALL EXEC (11,TIMON) WRITE (LU,1100) TIMON(4), TIMON(3), TIMON(2) 1100 FORMAT(I4, 2I3," _") * * Turn on DVM's, fire noise tube and compute source FLUX and * RMS ERROR. * CALL FLUX (LU, TUFLUX, WAVE) IF ( NEXT ) GO TO 911 * * Write source info onto disc file RESFIL. * CALL WINFO (LU, NFRQ, RESFIL, WVTB, WAVE, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL, *911,k) * 911 RETURN END * ********************************************************************* * * SUBROUTINE TO WRITE DATA TO RESULTS FILE * ********************************************************************* * SUBROUTINE WRTFL (NAMRFL, CPLACE, SFLUX, SERR, DVM, * NL, HKEEP, WVTB, RPTFQ, k,*) * CHARACTER NAMRFL*10, SEGNAM*5, CPLACE(20)*2, FCHAR*42 * LOGICAL HKEEP, WVTB, RPTFQ * REAL SFLUX(20), SERR(20), DVM(20) * * File operations * * Open file,if it exists * Assign 110 to label NSTMT=110 SEGNAM = 'WRTFL' 110 OPEN (50, file=NAMRFL, iostat=ierr, err=820, status='OLD') * * Find EOF Assign 120 to label NSTMT=120 120 DO WHILE (ierr .ne. -1) READ (50, '(A42)', iostat=ierr, err=820, end=150) * FCHAR end do Assign 150 to label NSTMT=150 150 BACKSPACE(50, iostat=ierr, err=820) * * Write info to file * Assign 160 to label NSTMT=160 DO 165 ILN = 1,NL * 160 WRITE (50, 1100, iostat=ierr, err=820) * HKEEP, WVTB, CPLACE(ILN), SFLUX(ILN), SERR(ILN), * RPTFQ, DVM(ILN) 165 CONTINUE * 1100 FORMAT (L1, L1, A2, G12.6, G12.6, L2, G12.6) * * Write EOF Assign 170 to label NSTMT=170 170 ENDFILE (50, iostat=ierr, err=820) * Assign 180 to label NSTMT=180 180 CLOSE (50, iostat=ierr, err=820) * GO TO 900 * * General error checking. * 820 Call ERMSG (ierr, NSTMT, ' ', *900, k) GO TO label * 900 RETURN k END * ********************************************************************* * BLOCK DATA * ********************************************************************* * LOGICAL HKEEP, PROB, NEXT, FIRE, RPTFQ, CALSRS * INTEGER SORSNM, ERSORS * REAL MEDTB, MEDVM * COMMON / CBOTH / SORSJY, ERROR, MEDTB, TBDEV, MEDVM, NEXT, FIRE, * HKEEP, PROB, SORSNM(5), KPLACE, * IDCB(272), NSORS, I, ITIME(5), * IYEAR, RPTFQ, ERSORS(10), ERWAV(10), KERR, * ERSQAV(10), CALSRS, IDCBS, TUBNET * END * ********************************************************************* * * FUNCTION TO OBTAIN UNIVERSAL- OR SIDERIAL TIME. * Returns UT if L = 1, ST if L = 2 (in SECONDS) * Time in decimal year for L = 3 (less 1900.) * ********************************************************************* * FUNCTION TIME(L) * INTEGER IT(5) EQUIVALENCE (IT(1),MS), (IT(2),IS), (IT(3),M), * (IT(4),IH), (IT(5),ID) DATA BASEOF / 84 806.882 /, LSTDAY / 0 /, * RATE / 0.002 737 909 3 / * * Calculate UT CALL EXEC (11, IT, IYR) TIME = FLOAT(IH*60 + M) * 60.0 + FLOAT(IS) + FLOAT(MS)/100. IF (L .LT. 2) GO TO 900 IF (L .EQ. 3) GO TO 300 * * Calculate ST. IF (ID .NE. LSTDAY) * OFFSET = FLOAT((IYR-1979)*365 + (IYR-1977)/4 + ID - 258) * * 236.55536 + BASEOF + 6644.4 TIME = TIME + TIME * RATE + OFFSET TIME = TIME - FLOAT(IFIX(TIME/86400.0)) * 86400.0 GO TO 900 * * Calculate time in decimal YEAR * 300 TIME = ((TIME/86400.) + FLOAT(ID))/365. + FLOAT(IYR) TIME = TIME - 1900. 900 RETURN END * ********************************************************************* * * SUBROUTINE TO ARRANGE FLUXES IN ASCENDING ORDER AND * CALCULATE THE MEDIAN. * Uses REAL variables. * ********************************************************************* * SUBROUTINE MEDIN (LU, RDVM, ICOUNT, MEDVM, DIGVM) * REAL DIGVM(1), MEDVM * DO 110 J = 1,ICOUNT * * Rise thru' array until position of value is found. IF ( RDVM .LE. DIGVM(J) ) GO TO 130 * 110 CONTINUE * DIGVM(ICOUNT) = RDVM GO TO 900 * * Shift all subsequent values up the array. 130 DO 140 K = ICOUNT,J,-1 DIGVM(K+1) = DIGVM(K) 140 CONTINUE * DIGVM(J) = RDVM * 900 CONTINUE * MIDL = ICOUNT/2 MEDVM = DIGVM(MIDL) * * RETURN END * *********************************************************************** * * Subroutine to read values of sun rise,set-times and coords * from disc file * *********************************************************************** * SUBROUTINE SUNTM (NOWDAY, UHSET, UMSET, UHRISE, UMRISE, * RASUN, DECSUN, k,*) * CHARACTER NAMFIL*10 * INTEGER SHRISE, SMRISE, SHSET, SMSET, UHSET, UMSET, UHRISE, * UMRISE, RHSUN, RMSUN, DAY, YEAR, DATE * DATA NAMFIL /'SUNTIM::16'/ * * Open, read and close file * Assign 110 to label NSTMT = 110 110 OPEN (10, file=NAMFIL, iostat=ierr, err=820, status='OLD') * * Find today's times and coords * DO WHILE (NOWDAY .NE. DAY) Assign 120 to label NSTMT = 120 120 READ (10, 1200, iostat=ierr, err=820) DAY, YEAR, MONTH, * DATE, SHSET, SMSET, SHRISE, SMRISE, UHSET, * UMSET, UHRISE, UMRISE, RHSUN, RMSUN, DECSUN * END DO Assign 160 to label NSTMT = 160 160 CLOSE (10, iostat=ierr, err=820) * RASUN = (FLOAT(RHSUN) + FLOAT(RMSUN)/60.) * 15. !Decml deg * GO TO 900 * * Error handling * 820 Call ERMSG (ierr, NSTMT, ' ', *900, k) GO TO label * 1200 FORMAT (I3, I4, 12I2, F7.3) * 900 RETURN k END * * ************************************************************************ * * Subroutine to calculate source angular separation from sun * and to skip source if too close * *********************************************************************** * SUBROUTINE CLOSN (RAP, DECP, RASUN, DECSUN, NSORS, ksun,*) * DATA SUNLIM / 20. / * ksun = 0 RADIF = RAP - RASUN DECDIF = DECP - DECSUN * IF (RADIF .GT. 180.) RADIF = RADIF - 360. IF (RADIF .LT. -180.) RADIF = RADIF + 360. IF (DECDIF .GT. 180.) DECDIF = DECDIF - 360. IF (DECDIF .LT. -180.) DECDIF = DECDIF + 360. * C PRINT '("RAP, RASUN, DECP, DECSUN, RADIF, DECDIF",6(2X,F6.3))', C * RAP, RASUN, DECP, DECSUN, RADIF, DECDIF * If ((ABS(RADIF) .LT. SUNLIM) .AND. * (ABS(DECDIF) .LT. SUNLIM)) then PRINT '(/"Source no.",I4," too close to sun"/ * "RA and DEC angular separation from sun resp.", * 2(2X,F6.2),/ * "Source skipped")', NSORS, RADIF, DECDIF * ksun = 1 endif * RETURN ksun END * ********************************************************************* * * SUBROUTINE TO WRITE SOURCE INFO ONTO DISC FILE. * File name RESFIL generated in main program. * ********************************************************************* * SUBROUTINE WINFO (LU, NFRQ, RESFIL, WVTB, WAVE, * NAMRFL, SFLUX, SERR, DVM, CPLACE, NL, k,*) * CHARACTER CPLACE(20)*2, NAMRFL*10 * LOGICAL HKEEP, PROB, RPTFQ, NEXT, FIRE, WVTB, CALSRS * INTEGER RESLT(21), RESFIL(3), IDCB(272), ITIME(5), SORSNM(5), * ERSORS(10) * REAL WAVE(1), ERWAV(10), ERSQAV(10), MEDTB, MEDVM, * SFLUX(20), SERR(20), DVM(20) * COMMON / CBOTH / SORSJY, ERROR, MEDTB, TBDEV, MEDVM, NEXT, FIRE, * HKEEP, PROB, SORSNM, KPLACE, IDCB, NSORS, * I, ITIME, IYEAR, RPTFQ, ERSORS, ERWAV, * KERR, ERSQAV, CALSRS, IDCBS, TUBNET * DATA IBLANK / 2H / * If (HKEEP .OR. WVTB) then * * Open file * Assign 110 to label NSTMT=110 110 OPEN (50, file=NAMRFL, iostat=ierr, err=820, status='OLD') * * Find EOF Assign 120 to label NSTMT=120 120 Do while (ierr .ne. -1) READ (50, '(A42)', iostat=ierr, err=820, end=150) * FCHAR end do * Assign 150 to label NSTMT=150 150 BACKSPACE(50, iostat=ierr, err=820) * Assign 160 to label NSTMT=160 160 If (HKEEP) then * * Get decimal time in years. * DECTM = TIME(3) SIDTIM = TIME(2)/3600. !Siderial time in decimal hrs * * Write housekeeping * WRITE (50, 1100, iostat=ierr, err=820) * HKEEP, NSORS, (SORSNM(L), L=1,5), * DECTM, NFRQ, CALSRS, * SIDTIM 1100 FORMAT(L1, I3, 5A2, F8.4, I2, L2, F12.6) * else if (WVTB) then * * Write wavelength and ave. tube DVM value. * WRITE (50, 1200, iostat=ierr, err=820) * HKEEP, WVTB, WAVE(I), MEDTB, * TBDEV, (IBLANK, J=1,5) 1200 FORMAT(L1, L1, F6.1, 2G12.6, 5A2) * NL = 0 WVTB = .FALSE. * endif * * Write EOF Assign 180 to label NSTMT=180 180 ENDFILE (50, iostat=ierr, err=820) * Assign 190 to label NSTMT=190 190 CLOSE (50, iostat=ierr, err=820) * endif * If (.NOT. HKEEP) then * * Assign track info to array for writing to file at end of freq. * NL = NL + 1 WRITE (CPLACE(NL), '(A2)') KPLACE SFLUX(NL) = SORSJY SERR(NL) = ERROR DVM(NL) = MEDVM * endif * GO TO 900 * * General error checking. * 820 Call ERMSG (ierr, NSTMT, ' ', *900, k) GO TO label * 900 CONTINUE * RETURN k END * ********************************************************************* * * SUBROUTINE TO CONTROL DVM's AND NOISE TUBE, AND CALCULATE * AVERAGE FLUX READINGS OF SOURCE. * Calls subroutine MEDIN. * * Uses Fluke DVM 8840 * ******************************************************************** * $ALIAS/DOUT1/,NOALLOCATE SUBROUTINE FLUX (LU, TUFLUX, WAVE) * LOGICAL NEXT, FTUBE, FIRE, HKEEP, PROB, RPTFQ, CALSRS * INTEGER IBUF(4), HASL, SORSNM(5), IDCB(272), * ITIME(5), ERSORS(10) * REAL TUFLUX(1), JYDVM, WAVE(1), DIGVM(651), MEDTB, * MEDVAL, ERWAV(10), ERSQAV(10), PREVTB(6), TBNOM(6), * PREVER(6), MEDIAN * REAL*8 AVDVM, SQAV, AVDSQ, DIFF, DSTDEV, totdvm, sumsq, sqdvm * COMMON / CBOTH / SORSJY, ERROR, MEDTB, TBDEV, MEDVAL, NEXT, FIRE, * HKEEP, PROB, SORSNM, KPLACE, IDCB, NSORS, * I, ITIME, IYEAR, RPTFQ, ERSORS, ERWAV, * KERR, ERSQAV, CALSRS, IDCBS, TUBNET * COMMON /DOUT1/ ISERVO * DATA NSMPL / 650 /, NTSAM / 650 /, !Remember change DIGVM * TBNOM / -.0564, -.0123, .0202, 0.01, 0.01, 0.01 / * FTUBE = .FALSE. NEXT = .FALSE. IFAIL = 0 NTFAIL = 0 * IF ( I .EQ. 1) IFQ = 2 IF ( I .EQ. 2) IFQ = 1 IF ( I .EQ. 3) IFQ = 3 IF ( I .EQ. 4) IFQ = 4 IF ( I .EQ. 5) IFQ = 5 IF ( I .EQ. 6) IFQ = 5 * * Select DVM inputs, DIRECT, same freq on both. * 100 ISEL = (IFQ * 2 - 1) * 11B IF (IFQ .EQ. 5) ISEL = 66B ! GPR selected CALL EXEC (2, 113B, ISEL, 1, 5, 5) CALL EXEC (12, 0, 2, 0, -1) ! Wait 1 second for settling * * Set up DVM. Default values, medium sampling rate * WRITE (35,'("*S1")') * NSAM = NSMPL IF ( KPLACE .EQ. 2HFN ) NSAM = NSMPL/2 * * Reset ordered array of DVM readings, DVM totals, etc. 110 DO 120 JJ = 1,NSMPL+1 DIGVM(JJ) = 0.0 120 CONTINUE TOTDVM = 0.0 SUMSQ = 0.0 * * Loop to read DVM and average NSAM samples. * DO 200 NN = 1,NSAM * READ (35,*) RDVM * * Keep running total of readings, arranging in order to calc median * CALL MEDIN (LU, RDVM, NN, MEDIAN, DIGVM) * TOTDVM = TOTDVM + RDVM SQDVM = RDVM*RDVM SUMSQ = SUMSQ + SQDVM * 200 CONTINUE * * Turn noise tube off If (FTUBE) then CALL EXEC (2, 113B, 0, 1, 3, 3) endif * * Calculate average and standard deviation. * COUNT = NSAM COUNT2 = NSAM/2 AVDVM = DBLE(TOTDVM / COUNT) SQAV = DBLE(SUMSQ/COUNT) AVDSQ = AVDVM * AVDVM * DIFF = SQAV - AVDSQ If (DIFF .LT. 0.) DIFF = 0. DSTDEV = SQRT( DIFF ) STDEV = SNGL(DSTDEV)/SQRT(COUNT2) * * New Fluke 8840 DVM connections opposite to old DVM * Change for consistency with analysis program C MEDIAN = -1. * MEDIAN * If (FTUBE) then TBDEV = STDEV MEDTB = MEDIAN else VALDEV = STDEV MEDVAL = MEDIAN endif * * Check max value calculated, for 6 sig fig accuracy If ( SQAV .GT. 8.388E07 ) then KERR = KERR+1 If ( KERR .LE. 10 ) then ERSORS(KERR) = NSORS If (FTUBE) ERSORS(KERR) = ERSORS(KERR)+1000 ERWAV(KERR) = WAVE(I) ERSQAV(KERR) = SNGL(SQAV) endif endif * * Check for DVM zero. If (STDEV .EQ. 0.0) then PRINT '("DVM ZERO. Trying again.")' IFAIL = IFAIL + 1 * If (IFAIL .GT. 3) then PRINT '("Too many problems. Try next freq")' NEXT = .TRUE. GO TO 988 else If (FIRE) FTUBE = .FALSE. GO TO 100 endif endif * * If (FIRE) then * * Return to fire tube as necessary If ( .NOT. FTUBE ) then * FTUBE = .TRUE. NSAM = NTSAM * Fire tube and wait 3 sec for trace to settle IFREQ = IFQ+1 * fix for 6.1 , 2.8 cm 4.5 cm if (i .eq. 1 .or. i .eq. 5 .or. i .eq. 6) * ifreq = 2 IF ( IFQ .EQ. 1 ) IFREQ = 1 ! 3.4cm tube CALL EXEC (2, 113B, IFREQ, 1, 3, 3) CALL EXEC (12, 0, 2, 0, -3) GO TO 110 else FTUBE = .FALSE. * * Check that noise tube fired. Nominal minimum set as 2*RMSnoise * change to 4 times 1987 dec 21 mjg TUBNET = MEDTB - MEDVAL !Net tube in DVM units * TLEVL = 4. * STDEV * SQRT(COUNT2) * If ( ABS(TUBNET) .LT. TLEVL ) then PRINT '(/"Noise diode fired ? Trying again.",/ * "STDEV, TBDEV, VALDEV",3(2X,G12.4),/ * "COUNT, TLEVL", 2(2X,G12.4),/ * "MEDIAN, MEDTB, MEDVAL, TUBNET ", * 4(2X,G12.4))', * STDEV, TBDEV, VALDEV, COUNT, TLEVL, * MEDIAN, MEDTB, MEDVAL, TUBNET * NTFAIL = NTFAIL + 1 * * If no. errors is >3, use nominal/previous tube * value, and continue. If (NTFAIL .GT. 3) then TUBNET = PREVTB(IFQ) TBDEV = PREVER(IFQ) If (TUBNET .EQ. 0.0) then TUBNET = TBNOM(IFQ) TBDEV = .07 * TUBNET/TUFLUX(I) endif PRINT '("Using nominal/previous ", * "value of ",G12.4,"+-",G12.4, * " DVM units")', TUBNET, TBDEV else GO TO 100 endif endif PREVTB(IFQ) = TUBNET PREVER(IFQ) = TBDEV * * Correction factor of Jy/DVM unit JYDVM = TUFLUX(I)/ABS(TUBNET) endif endif * * Convert measured values to Jy ERDVM = SQRT( TBDEV*TBDEV + VALDEV*VALDEV) SORSJY = MEDVAL * JYDVM ERROR = ERDVM * JYDVM PRINT '(F6.3,"+-",F5.3)', SORSJY, ERROR * 988 FIRE = .FALSE. RETURN END * ********************************************************************** * * Subroutine to calculate antenna limits * *********************************************************************** * SUBROUTINE LIMIT (HA,DEC,BELOW) * * Find if command angles are below the horizon * Copy of subroutine CMDLM in &STEER * HA input current command hour angle * DEC input current command declination * LOGICAL BELOW * * DEC must be in range -90, +90 If (DEC .GT. 90) then do 110 while (DEC .GT. 90.) DEC = DEC - 180. 110 end do endif If (DEC .LT. -90.) then do 115 while (DEC .LT. -90.) DEC = DEC + 180. 115 end do endif * * Limit command HA for real DEC * ----------------------------- halim = HA realdec = DEC if (realdec .gt. 180.0) realdec = realdec - 360.0 if (halim .lt. 0.0) then * limit command HA in the east alimit = -88.0 if (realdec .gt. -15.0) alimit = 0.45*realdec - 81.25 if (realdec .gt. +25.0) alimit = realdec - 95.0 if (halim .lt. alimit) halim = alimit else * limit command HA in the west alimit = 88.0 if (realdec .gt. -5.0) alimit = -0.3*realdec + 86.5 if (realdec .gt. +5.0) alimit = -realdec + 90.0 if (halim .gt. alimit) halim = alimit endif * * Limit command DEC for real HA * ----------------------------- * declim = DEC * limit command dec in the north alimit = 45.0 realha = HA if (realha .gt. 180.0) realha = realha - 360.0 if (realha .lt. 0.0) then * limit command dec in the east and north if (realha .lt. -50.0) alimit = realha + 95.0 if (realha .lt. -70.0) alimit = 2.222*realha + 180.556 else * limit command dec in the west and north if (realha .gt. 45.0) alimit = -realha + 90.0 if (realha .gt. 85.0) alimit = -3.333*realha + 288.333 endif if (declim .gt. alimit) declim = alimit * limit command dec in the south if (declim .lt. -83.0) declim = -83.0 * BELOW = ((HA .NE. HALIM) .OR. (DEC .NE. DECLIM)) * return end * * ********* VERSION <960423.1538> * ********************************************************************* * * Subroutine to display errors * ********************************************************************* * SUBROUTINE ERMSG (ierr, NSTMT, SEGNAM, k,*) * CHARACTER SEGNAM*5 * LOGICAL AOK * PRINT '("Error ",(I4)," at statement",(I4)," in ",(A5))', ierr, * NSTMT, SEGNAM k=1 RETURN k END * ************************************************************************** INCLUDE &RHYP::16 INCLUDE &RDSYS::16 INCLUDE &ERFIL::16 INCLUDE &OBSYN::16