VSOP Survey experiment VS03Q ============================ Observation date: 6/7 Aug. 1998 Observing frequency: 5 GHz Start time: 218 / 18:00:00 Stop time: 219 / 02:00:00 Source name (J2000): J0339-0146 Source name (B1950): 0336-019 Correlated in Penticton (on -or before- 4 Jan. 1999) Ground stations: Ceduna, Shanghai Tracking stations: 'MADRD_TS' 1998-218-20:43:00 --> 1998-219-01:08:52 'TDBIN_TS' 1998-218-15:50:00 --> 1998-218-19:14:31 'USUDA_TS' 1998-219-01:18:00 --> 1998-219-01:48:15 Station log files for CEDUNA (HARTRAO,MOPRA) are downloaded from ATNF (ftp.atnf.csiro.au, /pub/people/vlbi/vsop/logs/mmmyy). Log file and correlation info downloaded from Calgary. ftp cougar.ras.ucalgary.ca, /pub/vsop/VS03q/calib (anonymous) VS03q.comments, calib/VS03q.log, VS03q.tsys (extracted from station log files) ftp cougar.ras.ucalgary.ca, /vsop/VS03q (user=vsopobs, pw=sakura1) VS03q_DQA1.txt, VS03q.dqa1, VS03q_DQA1.ps.gz (fringe search results + phase cal plots) ftp vsoper1.vsop.isas.ac.jp, /vsop/vsopoper/data/srt/corrinputs/calib/ (anonymous) VS03ztsm.vs ==> HALCA tsys is not available!!! halca_gain.key (HALCA gain curve) Z.P. 02.10.2000 AIPS version 15APR99, run on ULTRA. ===> "BADDISK 1, 2": do not use MOON-s disks! Dataset received from LIG, who has already concatenated the correlator output files. The tape contains vs03z, vs03q and vs04w. FITLD Load vs03q dataset. >outdi 3 >outnam 'vs03q' >outcl 'fitld' >nfiles 1 Second file. >ncount 1 >digicor -1 >delcorr -1 >douvcomp 1 FIXWT >baddisk 1,2 >bif 1 >bchan 100 >detime -1 INDXR >cparm 0, 0, 0.25, 0 >infile 'mydata:INDXR_INFILE' INDXR >cparm 0, 0, 0.25, 0 >infile 'mydata:INDXR.TXT' LISTR -> SCAN_INFO >optype 'scan' >inext 'nx' >inver 1 >outpri 'mydata:scan_info' DTSUM -> DTSUM >outpri 'mydata:dtsum' >aparm 1 0 Change incorrect mounting type for VSOP_SC. (VSOP_SC is orbiter => 2). TABED >inext 'an' >inver 1; outver 1 >optyp 'repl' >aparm 5, 0, 0, 6, 0 >bcount 2; ecount 2 >keyval 2, 0 ANTAB >tyver 1; gcver 1; >infile 'mydata:ANTAB' APCAL (TY.1,GC.1=>SN.1) >tyver 1; gcver 1; >snver 1 CLCAL (CL.1,SN.1=>CL.2) >opcode 'cali' >interpol '2pt' >snver 1 >gainver 1 >gainuse 2 -- Continued in January 2001. TACOP (CL.2->CL.3) CLCOR (modify CL.3) (Data from TDBIN tracking have less then 100ns residual delays.) (>timer 0 17 59 43 0 19 14 31) (Data from MADRID tracking have less then 400ns residual delays.) (>timer 0 20 43 0 1 1 8 52) Residual delays almost go up to 800 ns during the last tracking pass (~half an hour with USUDA). Shift VSOP_SC data by -500 ns in the last tracking pass. This way we do not have to specify a too large delay window in FRING. (Applying a -800 -- 800 ns window in test FRING runs did not give good results; probably a harmonic was found.) >timer 1 1 18 0 1 1 48 15 >opcode 'sbdl' >antennas 2 0 >gainver 3 >clcorprm -500, -500 Flag the rest of the data: 2 ground stations are not enough for phase selfcal anyway. UVFLG (modify FG.1) >antennas 0; baseline 0 >flagver 1 >opcode 'flag' >reason 'Only two telescopes.' >timer 0 19 14 31 0 20 43 00 >timer 1 1 8 52 1 1 18 0 >timer 1 1 48 15 1 2 30 0 FRING (CL.3=>SN.2) >docal 1; gainuse 3; >snver 2; flagver 1; >refant 1; solint 5; >dparm 3, 400, 100, 0.7 Last parm. is from DTSUM >aparm 2, 0, 0, 0, 2, 1, 4, 0, 1 SNR=4 cutoff. >search 1, 3 Repeat FRING with SESHAN25 being the reference antenna. (There were problems with CEDUNA in the 2nd tracking pass.) >refant 3 >search 3, 1 >snver 3 Found 362 good solutions, failed on 46 These are CEDUNA (~21h-23h) and VSOP (23h-01h), during the 2nd half of MADRID (Robledo) tracking. CLCAL (CL.3,SN.3=>CL.4) (Do not use SN.2!!!) >opcode 'cali' >interpol 'ambg' >snver 3 >gainver 3 >gainuse 4 >refant 3 Gain correction for Penticton data, correlated before 14 Feb. 1999. TACOP (CL.4=>CL.5) CLCOR (modify CL.5) >gainver 5 >clcorprm 0.906, 0 >opcode 'gain' >timer 0 >antenas 0 SPLIT >sources 'J0339-01' '' >gainuse 5 >aparm 2, 0.7, 0, 1, 0 FITTP >outfil 'mydata:vs03q.uvf' Finished on 25 Jan 2001. 1 -- CEDUNA 2 -- VSOP_SC 3 -- SESHAN25