! ! EVN Calibration Information File - To be used with the AIPS ANTAB program ! ! Experiment : HOLO22 ! Date(s) : ! Wavelength : ! Stations : Mc ! 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 and INDEX lines in this ! file for the other frequencies. ! ! Compiled by Cormac Reynolds (reynolds@jive.nl) Tue 07 Aug 2001 ! Version: newantab.pl - 6 Aug 2001 ! ! 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 Overflows have been replaced by -2 in the appropriate column and empty ! columns by -3. 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 a brief description. ! ! 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. ! ! Global VLBI Experiments Correlated at Socorro ! --------------------------------------------- ! ! Global experiments correlated at Socorro may have the TSYS and GAIN ! information for the Effelsberg antenna (EB) transferred automatically with ! the data in a format suitable for use with the AIPS task APCAL (in the same ! way as the VLBA antennas). If this is the case then the TSYS and GAIN entries ! for EB should be removed from this file before running ANTAB. ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! PIs should carefully check TSYS values for obvious errors. ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! ! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !GAINS at 1.3cm !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ! ! Medicina 32m antenna at 1.3cm. ! (see http://192.167.189.40/polinomial.html) ! ! GAIN MC ALTAZ DPFU=0.11,0.11 ! POLY=0.90994, 6.1477E-3, -6.2788E-5, -1.0419E-6, -2.0909E-8, 2.4133E-10 GAIN MC LCP ALTAZ DPFU=0.119,0.121 ! JFD (10/99) POLY=0.588, 23.5E-3, -3.4E-4 ! Left / GAIN MC RCP ALTAZ DPFU=0.119,0.121 ! JFD (10/99) POLY=0.603, 25.6E-3, -4.1E-4 ! Right / ! ! -------------------------------------------------------------------------- ! Tsys Values ! -------------------------------------------------------------------------- ! TSYS MC FT=1.0 TIMEOFF=90 INDEX= 'L1', 'R1' / !L1: lo=21760.00 MHz, bbc01=478.80 MHz, BW=2.000 MHz !R1: lo=21760.00 MHz, bbc02=478.80 MHz, BW=2.000 MHz 170 14:59.96 185.9 207.5 170 15:48.96 183.8 210.6 170 16:37.96 193.1 217.8 170 17:26.96 212.3 242.7 170 18:15.96 234.5 268.1 170 19:04.96 247.6 281.4 170 19:53.96 211.6 234.1 170 20:42.96 29497.8 -4465.5 170 21:31.96 1440.5 1915.0 170 22:20.96 -2154.0 -1488.0 170 23:09.96 316.5 325.2 170 23:58.96 565.4 601.9 171 00:47.96 2258.0 2166.3 171 01:36.96 759.5 744.7 171 02:25.96 175.1 198.2 171 03:14.96 170.6 195.5 171 04:03.96 169.4 195.2 171 04:52.96 164.5 186.8 ! ! Station Comments: ! !170 14:26.73:" holo22 2001 MEDICINA M Mc !170 14:26.73:" M MEDICINA AZEL 1.8270 45.0 2 -999.9 999.9 30.0 2 -999.9 999.9 0.0 Mc !170 14:26.73:" Mc MEDICINA 4461369.98800 919596.83200 4449559.18900 !170 14:26.73:" MEDICINA 1417600 !170 14:26.73:" drudg version 001102 compiled under FS 9.4.17 !170 14:33.01:"clear sky, some clouds !170 14:48.13:"test !170 16:55.15:"some tracking problems for high wind. thunderstorm coming !170 19:58.30:"wind less strong. very cloudy sky /