! Prepared by Z.P. on 27 November 2000. ! ! ! Ground station gain curve infos for Ceduna and Seshan25 are from ! http://www.vsop.isas.ac.jp/obs/GRTcal.html/nominal_gain_C.cal, ! last updated on 28 Jun 1999. ! ! Nominal Tsys values are used for Ceduna ! http://www.vsop.isas.ac.jp/obs/GRTcal.html/nominal_tsys_C.cal, ! last updated on 28 Jun 1999. ! ! Tsys for Seshan25 was available (in file VS03q.tsys). ! ! HALCA gain curve information is from ftp://vsoper1.vsop.isas.ac.jp/vsop/ ! vsopoper/data/srt/corrinputs/calib/halca_gain.key ! ! HALCA nominal Tsys is from ! http://www.vsop.isas.ac.jp/obs/HALCAcal.html ! For IF1 and IF2 the nominal Tsys are 92 K and 96 K as measured at 4.95 GHz, ! closest to our reference frequency of 4.93 GHz. CONTROL INDEX 'L1|L2' / !******************************************* ! Ceduna 30m nominal value at 5GHz ! Updated with gain curve from R. Dodson 2-Feb-99 ! SEFD ~ 380 Jy ! DPFU = Tsys/SEFD = 0.13 GAIN CEDUNA ELEV DPFU = 0.13, 0.13 POLY = 0.13429, 0.15001, -1.0379E-2, 3.5063E-4, -6.0847E-6, 5.2003E-8, -1.7319E-10 / !******************************************* !******************************************* ! Seshan25 (Shanghai) at 6cm ! (970318) ! GAIN SESHAN25 ALTAZ DPFU=0.10,0.10 POLY=8.833E-01,9.150E-03,-2.971E-04,5.279E-06,-3.501E-08 / !******************************************* !******************************************* ! C-band data from July 18 (Cas-A; 2 pointing scans): ! peak gain = 0.0064 K/Jy ! uncorrected pointing error = ~6' ! measured beam FWHM = ~31.3' (assumed circ. Gauss.) ! pointing loss gain factor = 0.90 !GAIN GZ DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / !GAIN NZ DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / !GAIN RZ DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / !GAIN TZ DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / !GAIN UZ DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / !GAIN HALCA DPFU=(0.0064*0.90) FREQ=4700,5000 ALTAZ POLY=1.0 / GAIN VSOP_SC DPFU=0.0058, 0.0058 FREQ=4700,5000 ALTAZ POLY=1.0 / !******************************************* !******************************************* ! Ceduna 30m. ! Last updated Feb 3, 1999. Information from R. Dodson ! DFPU = 0.13 K/Jy ! Tsys is fit as a function of zenith angle (x) as follows: ! Tsys(x) = a + bx + cx^2 + dx^3 +ex^4 + fx^5 + gx^6 ! where a = 49.7109, b = -0.157068, c = 0.0249903, ! d = -0.00148014, e = 3.97566e-05, f = -4.88072e-07, ! g = 2.2477e-09 ! Below is a table of this polynomial at 5 degree intervals in ZA. ! ZA El Tsys (K) ! 0 90 49.7109 ! 5 85 49.3887 ! 10 80 49.5101 ! 15 75 49.6499 ! 20 70 49.6676 ! 25 65 49.5883 ! 30 60 49.5076 ! 35 55 49.5227 ! 40 50 49.6885 ! 45 45 49.9985 ! 50 40 50.3921 ! 55 35 50.7857 ! 60 30 51.1306 ! 65 25 51.4953 ! 70 20 52.1729 ! 75 15 53.8145 ! 80 10 57.5876 ! 85 5 65.3596 TSYS CEDUNA TIMEOFF=0.0 FT=1.0 INDEX='L1','L2' / 218 18:00:00.0 49.5 49.5 218 18:30:00.0 49.5 49.5 218 19:00:00.0 49.5 49.5 218 19:30:00.0 49.5 49.5 218 20:00:00.0 49.5 49.5 218 20:30:00.0 49.5 49.5 218 21:00:00.0 49.5 49.5 218 21:30:00.0 49.5 49.5 218 22:00:00.0 49.5 49.5 218 22:30:00.0 49.5 49.5 218 23:00:00.0 49.5 49.5 218 23:30:00.0 49.5 49.5 219 00:00:00.0 49.5 49.5 219 00:30:00.0 49.5 49.5 219 01:00:00.0 49.5 49.5 219 01:30:00.0 49.5 49.5 219 02:00:00.0 49.5 49.5 / !******************************************* !******************************************* TSYS SESHAN25 TIMEOFF=0.0 FT=1.0 INDEX='L1','L2' / 218 18:00:00.0 91.1 79.1 218 19:00:00.0 76.2 67.3 218 20:00:00.0 68.9 61.5 218 20:10:00.0 69.2 62.5 218 21:00:00.0 63.2 55.5 218 22:00:00.0 60.5 54.6 218 23:04:00.0 59.9 56.8 219 00:00:00.0 59.2 56.1 219 00:20:00.0 63.4 57.2 219 01:00:00.0 62.4 58.9 219 01:50:00.0 64.6 61.5 / !******************************************* !******************************************* ! HALCA nominal Tsys values ! TSYS VSOP_SC TIMEOFF=0.0 FT=1.0 INDEX='L1','L2' / 218 18:00:00.0 92.0 96.0 218 18:30:00.0 92.0 96.0 218 19:00:00.0 92.0 96.0 218 19:30:00.0 92.0 96.0 218 20:00:00.0 92.0 96.0 218 20:30:00.0 92.0 96.0 218 21:00:00.0 92.0 96.0 218 21:30:00.0 92.0 96.0 218 22:00:00.0 92.0 96.0 218 22:30:00.0 92.0 96.0 218 23:00:00.0 92.0 96.0 218 23:30:00.0 92.0 96.0 219 00:00:00.0 92.0 96.0 219 00:30:00.0 92.0 96.0 219 01:00:00.0 92.0 96.0 219 01:30:00.0 92.0 96.0 219 02:00:00.0 92.0 96.0 / !*******************************************