! ! EVN Calibration Information File - To be used with the AIPS ANTAB program ! ! Experiment : FT004 ! Date(s) : 311 10:00(06/11)-11:00(06/11) ! Wavelength : 18cm ! Stations : JbMcNtOnShTrWb ! Comments : N.B. You should remove from this file any antenna gain curves ! for antennas for which you have no data. ! N.B. Also check that the index lines for each antenna are ! correct for this experiment/data format. ! N.B. If this experiment involves more than one frequency, you ! must run ANTAB once for each frequency, commenting out the gains ! in this file for the other frequencies. ! Jb: all Tsys in 4th column are bad ! ! Compiled by Cormac Reynolds (reynolds@jive.nl) ! Version: newantab.pl - October 2000 ! ! Send any changes or updates to the antenna information or queries about this ! file to the email address given above ! ! Polarization ! ------------ ! ! If there is only one polarization available this is indicated by having ! DPFU value 0.0 for RCP (0.0 for LCP for S and X Band). ! ! INDEX Line ! ---------- ! ! It is IMPORTANT to ensure the INDEX lines are correct. By default they are ! arranged such that the IF with the lowest frequency LCP is L1, the lowest ! frequency RCP is R1, etc. If you have any doubts about them, please contact ! the email address above for assistance. ! ! Negative TSYS values: ! ---------------------- ! ! Overflows have been replaced by -2.0 in the appropriate column and empty ! columns by -3.0. The user should replace these numbers and others that they ! deem inappropriate (very high Tsys values and occasional negative numbers) ! with appropriate numbers from adjacent scans or IFs. Some interpolation may ! already have been done by the producer of this file; see the comment line ! above for brief comments. ! ! TIMEOFFSET ! ---------- ! ! The TIMEOFFSET is used as EVN makes the TSYS measurements before the scan. ! Since ANTAB requires that the measurement falls within the scan itself ! TIMEOFFSET=90 is used. This will displace the measurement by 90 seconds. In ! the case of short scans this number should be changed so that the measurement ! falls within the scan (TIMEOFFSET needs to be lowered). Try with lower values ! until ANTAB recognises the value. Alternatively, you may set TIMEOFFSET to 0 ! and use the option 'OFFSET' in ANTAB instead to increase the effective ! length of the scans. ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! PIs should carefully check TSYS values for obvious errors. ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! / ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !GAINS at 18cm !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! Lovell 76m Telescope at 18cm ! GAIN JB ALTAZ DPFU=0.81, 0.81 POLY=0.9995,1.8846E-3, -1.1369E-4, 9.745E-7, 3.499E-8, -4.671E-10 ! ! NOTE ! ---- ! These values in the tables should only be used if there are NO ! reliable radiometry from the antenna. In this case TSYS=1.0 ! should be placed for all timeticks for the experiment in question. ! (STG 97 05 26) ! ! Lovell new 18cm (after April 1997) !GAIN JB ELEV DPFU=3.33E-2,3.33E-2 TABLE / ! 5.0 0.510 ! 7.5 0.583 !10.0 0.630 !12.5 0.718 !15.0 0.769 !20.0 0.812 !25.0 0.873 !30.0 0.934 !35.0 1.000 !40.0 1.035 !45.0 1.058 !50.0 1.058 !55.0 1.081 !60.0 1.125 !65.0 1.146 !70.0 1.169 !75.0 1.146 !80.0 1.146 !90.0 1.146 !/ / ! ! MK2 26m Telescope at 18cm ! ! NOTE ! ---- ! These values in the tables should only be used if there are NO ! reliable radiometry from the antenna. In this case TSYS=1.0 ! should be placed for all timeticks for the experiment in question. ! (STG 97 05 26) ! !GAIN JB ELEV DPFU=2.91E-3 ,2.91E-3 TABLE / ! 5.0 0.640 ! 7.5 0.718 !10.0 0.783 !12.5 0.826 !15.0 0.857 !20.0 0.907 !25.0 0.925 !30.0 0.969 !35.0 1.000 !40.0 1.024 !45.0 1.010 !50.0 1.000 !55.0 0.990 !60.0 0.990 !65.0 0.969 !70.0 0.959 !75.0 0.939 !80.0 0.919 !90.0 0.919 !/ ! ! Westerbork Array at 18cm ! Unknown DPFU and POLY ! Westerbork 18cm values are determined locally for each session. TSYS values ! are already corrected. ! / GAIN WB EQUAT DPFU=1.0 POLY=1.0 / ! ! Medicina 32m antenna at 18cm. ! (see http://192.167.189.40/polinomial.html) ! ! GAIN MC ALTAZ DPFU=0.10,0.10 ! POLY=0.98489,-6.7665E-3,8.3781E-4,-3.3516E-5,5.2244E-7,-2.7857E-9 GAIN MC ALTAZ DPFU=0.098,0.098 ! JFD (10/99) POLY=1.004, -1.0E-4, 3.06E-6 ! LCP ! POLY=0.989, 5.1E-4, -7.1E-6 ! RCP / ! ! Noto 32m antenna at 18cm. ! GAIN NT ALTAZ DPFU= 0.110,0.100 ! JFD 11/99 POLY=1.00, 0.00 / ! ! Onsala 25m antenna at 18cm ! ! GAIN ON ELEV DPFU=0.084643,0.084643 ! JFD 10/99 POLY= 1.0, 1.821E-3, 7.207E-6, -1.8614E-7 / ! ! Seshan25 (Shanghai) at 18cm ! (XHuang 970715) ! GAIN SH ALTAZ DPFU=0.055 POLY=1.096,-2.607E-2,1.548E-3,-3.039E-5,1.871E-7 / ! ! Torun 32m antenna at 18cm. ! Unknown DPFU and POLY ! GAIN TR ALTAZ DPFU=0.13,0.13 POLY=1.00,0,0 / ! ! -------------------------------------------------------------------------- ! Tsys Values ! -------------------------------------------------------------------------- ! TSYS JB FT=1.0 TIMEOFF=90 INDEX= 'L1', 'R1', 'L2', 'R2' / 311 09:43.43 39.8 59.9 39.4 -2 311 09:43.96 41.2 63.6 39.3 -2 311 10:00.05 39.9 58.6 36.9 -2 311 10:16.05 39.4 48.4 36.6 -2 311 10:32.05 39.1 49.8 35.6 -2 311 10:46.05 38.9 50.0 35.8 -2 ! ! Station Comments: ! !311 09:18.06:" ft004 2000 JODRELL1 J Jb !311 09:18.06:" J JODRELL1 AZEL 0.0000 9.0 2 -999.9 999.9 5.0 2 -999.9 999.9 0.0 Jb !311 09:18.06:" Jb JODRELL1 3822626.49700 -154105.58900 5086486.26200 !311 09:18.06:" JODRELL1 14 8820 !311 09:18.06:" drudg version 000622 compiled under FS 9.4.13 !311 09:36.40:"Errors are cleared, but serious RFI as usual. !311 09:56.08:"weather overcast, very wet !311 09:59.50:"pcal looks about 6dB too big !311 10:36.23:"Possibility that LO1 wrongly set brt !311 10:36.85:"Possibility that LO1 wrongly set between 10:06 - 10:12 and 10:19 - 10:27 UT / TSYS MC FT=1.0 TIMEOFF=90 INDEX= 'L1', 'R1', 'L2', 'R2' / 311 09:52.10 65.9 59.0 69.5 59.7 311 09:59.96 67.6 57.5 69.7 59.4 311 10:15.96 69.2 58.8 69.1 58.7 311 10:31.96 68.5 60.9 69.3 58.8 311 10:45.96 64.8 59.3 68.5 58.4 ! ! Station Comments: ! !311 09:44.76:" ft004 2000 MEDICINA M Mc !311 09:44.76:" M MEDICINA AZEL 1.8270 48.0 2 -999.9 999.9 30.0 2 -999.9 999.9 0.0 Mc !311 09:44.76:" Mc MEDICINA 4461369.98800 919596.83200 4449559.18900 !311 09:44.76:" MEDICINA 1415800 !311 09:44.76:" drudg version 000622 compiled under FS 9.4.14 !311 09:49.91:"cloudy sky !311 09:50.25:"GPS-FM=-79.5uS !311 09:50.41:mat=#aa" !311 10:10.21:" ft004 2000 MEDICINA M Mc !311 10:10.21:" M MEDICINA AZEL 1.8270 48.0 2 -999.9 999.9 30.0 2 -999.9 999.9 0.0 Mc !311 10:10.21:" Mc MEDICINA 4461369.98800 919596.83200 4449559.18900 !311 10:10.21:" MEDICINA 1415800 !311 10:10.21:" drudg version 000107 compiled under FS 9.4.6 !311 10:11.30:" problems with schedule produced by FS 9.3.14. Wrong et just before tape starts !311 10:11.73:"lanched the tape manually, but at wrong speed (135 instead of 80) !311 10:12.50:"changed schedule and relaunched, but tape is not footage syncronized !311 10:44.10:"lost last 2 min for tape against the end. I am going to 15600 / TSYS NT FT=1.0 TIMEOFF=90 INDEX= 'R1', 'L1', 'R2', 'L2' / 311 10:00.10 108.2 99.9 109.6 104.3 311 10:16.10 107.2 100.3 109.4 104.2 311 10:32.10 106.5 99.1 108.0 102.5 311 10:46.10 105.0 98.3 107.1 102.2 ! ! Station Comments: ! !311 09:39.53:" ft004 2000 NOTO N Nt !311 09:39.53:" N NOTO AZEL 1.8310 43.0 2 -999.9 999.9 30.0 2 -999.9 999.9 0.0 Nt !311 09:39.53:" Nt NOTO 4934563.12300 1321201.27000 3806484.47800 !311 09:39.53:" NOTO 14 8820 !311 09:39.53:" drudg version 000622 compiled under FS 9.4.14 !311 09:45.60:"formal clock offset = -6.24 microsec." !311 09:45.85:"weather conditions: clear sky" !311 10:17.56:"problems with antenna controller: pointing could be wrong" !311 10:25.23:"now observing / TSYS ON FT=1.0 TIMEOFF=90 INDEX= 'L1', 'R1', 'L2', 'R2' / 311 09:50.86 10.4 23.5 10.5 20.5 311 09:54.78 14.4 39.5 15.6 34.7 311 09:56.48 16.7 39.6 19.3 34.6 311 09:59.38 34.0 39.3 34.0 34.6 311 10:00.00 34.0 39.4 34.0 34.4 311 10:13.23 33.8 39.1 33.9 34.4 311 10:16.00 33.9 39.2 33.9 34.4 311 10:29.23 33.7 39.4 33.7 34.4 311 10:32.00 33.7 39.2 33.8 34.6 311 10:45.23 33.6 39.1 33.6 34.4 311 10:46.01 33.6 39.1 33.6 34.5 311 10:59.23 33.7 39.0 33.5 34.4 ! ! Station Comments: ! !311 09:49.18:" ft004 2000 ONSALA85 O On !311 09:49.18:" O ONSALA85 HADC 2.1500 18.0 2 -999.9 999.9 20.0 2 -999.9 999.9 0.0 On !311 09:49.18:" On ONSALA85 3370968.18100 711464.91700 5349664.11300 !311 09:49.18:" ONSALA85 14 8820 !311 09:49.18:" drudg version 000622 compiled under FS 9.4.13 !311 10:09.61:"Not optimum measurement of Noise diodelist / TSYS SH FT=1.0 TIMEOFF=90 INDEX= 'R1', 'L1', 'R2', 'L2' / 311 10:16.00 92.5 87.4 99.6 61.2 311 10:32.00 93.2 87.5 101.7 61.2 311 10:46.00 93.1 85.9 100.1 60.6 ! ! Station Comments: ! !311 09:53.13:" ft004 2000 SHANGHAI S Sh !311 09:53.13:" S SHANGHAI AZEL 0.0040 30.0 2 -999.9 999.9 18.0 2 -999.9 999.9 0.0 Sh !311 09:53.13:" Sh SHANGHAI -2831686.92000 4675733.68100 3275327.68200 !311 09:53.13:" SHANGHAI 14 8820 !311 09:53.13:" drudg version 000622 compiled under FS 9.4.15 !311 10:36.71:"weather:it's fine. !311 10:37.71:"before exp. clock offset=utc(seshan25)-utc(gps)=1.76 us. !311 10:38.08:"after exp. clock offset=utc(seshan25)-utc(gps)=1.77 us. !311 10:44.38:"the frequency accuracy is 1.66X10(-12). / TSYS TR FT=1.0 TIMEOFF=90 INDEX= 'R1', 'L1', 'R2', 'L2' / 311 10:00.00 123.4 162.0 121.9 155.6 311 10:16.00 122.3 161.3 122.5 153.2 311 10:32.00 131.6 156.7 121.3 155.6 311 10:46.00 115.7 153.1 123.9 161.0 ! ! Station Comments: ! !311 09:48.33:" ft004 2000 TORUN T Tr !311 09:48.33:" T TORUN AZEL 0.0000 22.0 2 -999.9 999.9 12.5 2 -999.9 999.9 0.0 Tr !311 09:48.33:" Tr TORUN 3638558.00000 1221967.00000 5077041.00000 !311 09:48.33:" TORUN 14 8820 !311 09:48.33:" drudg version 001102 compiled under FS 9.4.17 !311 09:48.33:" !311 09:48.33:" Remarks from the VLBI friend: !311 09:48.33:" No technical problems encountered. !311 09:48.33:" The sensitivity is considerably !311 09:48.33:" lowered due to uncoolled receivers. !311 09:48.33:" !311 09:48.33:" / ! HISTORY="Expt ft004 " ! HISTORY="Using tied array of 14 Telescopes at 18 cm" ! HISTORY="Values are really SEFD of array" TSYS WB FT=1.0 INDEX='L1|R1','L2|R2' / 311 10:00.50 39.36 39.78 311 10:01.50 38.89 39.10 311 10:02.50 38.70 38.75 311 10:03.50 38.17 39.45 311 10:04.50 38.38 38.84 311 10:05.50 38.32 39.83 311 10:06.50 38.45 39.35 311 10:07.50 38.59 39.66 311 10:08.50 39.13 40.06 311 10:09.50 38.79 40.22 311 10:10.50 38.97 39.48 311 10:11.50 39.46 39.94 311 10:12.50 40.12 40.09 311 10:16.50 41.97 39.64 311 10:17.50 42.60 38.40 311 10:18.50 42.29 37.98 311 10:19.50 41.83 38.75 311 10:20.50 40.61 39.08 311 10:21.50 41.73 38.07 311 10:22.50 41.55 38.26 311 10:23.50 40.98 38.92 311 10:24.50 41.24 39.37 311 10:25.50 41.94 39.07 311 10:26.50 41.49 38.75 311 10:27.50 39.55 37.61 311 10:28.50 40.31 37.45 311 10:32.50 41.03 38.03 311 10:33.50 40.13 37.16 311 10:34.50 38.11 36.12 311 10:35.50 37.72 36.42 311 10:36.50 38.19 37.05 311 10:37.50 37.54 37.35 311 10:38.50 36.05 37.72 311 10:39.50 37.25 37.32 311 10:40.50 36.99 37.80 311 10:41.50 37.20 37.68 311 10:42.50 36.49 38.30 311 10:43.50 37.64 38.04 311 10:44.50 38.34 37.32 311 10:45.50 38.38 37.75 311 10:46.50 39.19 38.61 311 10:47.50 38.82 37.99 311 10:48.50 37.75 37.79 311 10:49.50 38.20 37.43 311 10:50.50 37.64 37.80 311 10:51.50 38.13 37.13 311 10:52.50 40.13 38.25 311 10:53.50 40.15 38.11 311 10:54.50 42.13 38.04 311 10:55.50 41.86 37.69 311 10:56.50 41.70 37.62 311 10:57.50 40.47 38.12 311 10:58.50 39.04 37.26 311 11:10.50 47.56 50.81 311 11:11.50 47.31 50.50 311 11:12.50 46.64 50.67 311 11:13.50 47.05 51.68 311 11:14.50 47.12 50.36 311 11:15.50 46.55 50.72 311 11:16.50 46.47 50.37 311 11:17.50 45.99 49.49 311 11:18.50 48.37 50.93 311 11:19.50 45.92 51.43 311 11:20.50 46.92 51.57 311 11:21.50 46.78 51.31 311 11:22.50 47.05 50.44 311 11:23.50 47.35 52.03 311 11:24.50 46.57 50.66 311 11:25.50 48.08 52.33 311 11:26.50 47.83 50.04 311 11:27.50 48.37 51.60 311 11:28.50 47.85 52.06 ! ! Station Comments: ! !311 09:55.68:" ft004 2000 WSTRBORK W Wb !311 09:55.68:" W WSTRBORK HADC 0.0000 15.0 10 -999.9 999.9 15.0 10 -999.9 999.9 0.0 Wb !311 09:55.68:" Wb WSTRBORK 3828440.64000 445226.03000 5064923.08000 !311 09:55.68:" WSTRBORK 14 8820 !311 09:55.68:" drudg version 000622 compiled under FS 9.4.13 !311 09:57.28:" ft004 2000 WSTRBORK W Wb !311 09:57.28:" W WSTRBORK HADC 0.0000 15.0 10 -999.9 999.9 15.0 10 -999.9 999.9 0.0 Wb !311 09:57.28:" Wb WSTRBORK 3828440.64000 445226.03000 5064923.08000 !311 09:57.28:" WSTRBORK 14 8820 !311 09:57.28:" drudg version 000622 compiled under FS 9.4.13 !311 09:58.41:" ft004 2000 WSTRBORK W Wb !311 09:58.41:" W WSTRBORK HADC 0.0000 15.0 10 -999.9 999.9 15.0 10 -999.9 999.9 0.0 Wb !311 09:58.41:" Wb WSTRBORK 3828440.64000 445226.03000 5064923.08000 !311 09:58.41:" WSTRBORK 14 8820 !311 09:58.41:" drudg version 000622 compiled under FS 9.4.13 !311 10:04.50:"We have had several problems up to now, so I don't trust the system !311 10:04.61:"all telescopes in array !311 10:59.01:"just checking before end /