GTAC Observation Log 1. Date : 20/5/2014 2. Observation Sr. No. : 7118 3. Observer : Nissim Kanekar,Aditya JNHS 4. Observer's Email : nkanekar@ncra.tifr.res.in,aditya@ncra.tifr.res.in 5. Project Name : A search for associated HI 21cm absorption at high redshifts. 6. Project Code : 26_052 7. Operator(s) : Deepak,Navanath,Nilesh,Rupsingh,Sachin,Shilpa, 8. Command File : /odisk/gtac/cmd/aditya/1010+8250.cmd,/odisk/gtac/cmd/aditya/1356+478.cmd,/odisk/gtac/cmd/aditya/1418+546.cmd,/odisk/gtac/cmd/aditya/1719+357.cmd,/odisk/gtac/cmd/aditya/1927+7358.cmd,/odisk/gtac/cmd/aditya/2005+7752.cmd,/odisk/gtac/cmd/aditya/0010+405.cmd 9. LTA File : /gsbifrdata/20may/26_052_20may2014_1010+8250.lta,/gsbifrdata/20may/26_052_20may2014_1356+478.lta,/gsbifrdata/20may/26_052_20may2014_1418+546.lta,/gsbifrdata/20may/26_052_20may2014_1719+357.lta,/gsbifrdata/20may/26_052_20may2014_1927+7358.lta,/gsbifrdata/20may/26_052_20may2014_2005+7752.lta,/gsbifrdata/20may/26_052_20may2014_0010+405.lta, 10. LogFlag File : /odisk/online1/logflags/26_052.FLAGS.18,/odisk/online1/logflags/26_052.FLAGS.20,/odisk/online1/logflags/26_052.FLAGS.22,/odisk/online1/logflags/26_052.FLAGS.21,/odisk/online1/logflags/26_052.FLAGS.19,/odisk/online1/logflags/26_052.FLAGS.23,/odisk/online1/logflags/26_052.FLAGS.17, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1058 MHz ,RF2 : 1058 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1005 MHz, ILO2 : 1005 MHz , IVLO1 : 53 MHz, IVLO2 : 53 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Mode : Realtime 15. GSB LTA : 8 16. GSB CTRL : ONLINE 17. GSB Fstop : ON 18. GAIN EQ : ON 19. Stokes : TotIntensity 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 33.33 MHz 23. Final BW : 33.333333 MHz; Step # 0 24. Maximum Channels : 512 25. Channel Numbers : 0:511:1 26. LO5 -1 : 148.00 27. LO5 -2 : 157.00 28. Frequency Parameters (TPA) : 1058 1058 1005 1005 53 53. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) at the begining :27 31. Name of Non-Working Antennas (with reason for each) : W02 : Front End Work C12 : MCM 5 Time out. E02 : feed jam. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 21:00 - 09:47 34. ONLINE Machine : Shivneri 35. No of Antennas Working(Fringing) at the end :26 36. Comments (During Observations) : 21:00 : Started settings. 21:02 : Started cmd file. /odisk/gtac/cmd/aditya/1010+8250.cmd ---------------------------------------------------------------- 23:30 : Settings changed All ALCs ON RF Band : 1170 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 1085 MHz LO(5) : 147, 158 MHz LO(4) : 53, 53 MHz Step : 0 Channels : 512 lta : 8m TPA 1138 1138 1085 1085 53 53 23:35 : Started command file 1356+478.cmd 01:02 : Command file stopped. ------------------------------------------------------ 01:10 : Settings changed. Command file : /odisk/gtac/cmd/aditya/1418+546.cmd Flux calibrator : 3C286 Bandpass calibrator: 3C286 Phase calibrator: 1400+621 All ALCs ON RF Band : 1280 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 1165 MHz LO(5) : 147, 158 MHz LO(4) : 53, 53 MHz Step : 0 Channels : 512 lta : 8m TPA 1218 1218 1165 1165 53 53 01:12 : C12 started working. 01:13 : started command file 1418+546.cmd 02:48 : Command file stopped. -------------------------------------------------- 02:49 : Settings changed. All ALCs ON RF Band : 1170 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 1055 MHz LO(5) : 147, 158 MHz LO(4) : 53, 53 MHz Step : 0 Channels : 512 lta : 8m TPA 1108 1108 1055 1055 53 53 02:57 : Started command file /odisk/gtac/cmd/aditya/1719+357.cmd 03:27 : Command file stopped. ------------------------------------------------------- 03:28 : Settings changed RF Band : 1060 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 1020 MHz LO(5) : 147, 158 MHz LO(4) : 53 , 53 MHz Step : 0 Channels : 512 lta : 8m TPA 1073 1073 1020 1020 53 53 04:46 : Started command file /odisk/gtac/cmd/aditya/1927+7358.cmd 04:46 : C01 not fringing. 06:15 : Command file stopped. -------------------------------------------------------------- 06:16 : Settings changed RF Band : 1060 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 990 MHz LO(5) : 147, 158 MHz LO(4) : 53, 53 MHz Step : 0 Channels : 512 lta : 8m TPA 1043 1043 990 990 53 53 06:21 : C01 started working. 06:22 : Started command file /odisk/gtac/cmd/aditya/2005+7752.cmd 07:25 : E03 taken for painting. 07:52 : Stopped command file. ---------------------------------------------------------------------- 07:52 : Settings changed. RF Band : 1170 IF BW : 34 MHz Baseband BW : 33.33 MHz LO(1) : 1065 MHz LO(5) : 148, 157 MHz LO(4) : 52, 52 MHz Step : 0 Channels : 512 lta : 8m TPA 1117 1117 1065 1065 52 52 08:15 : '/odisk/gtac/cmd/aditya/0010+405.cmd' command file started. 09:20 : C10 taken for painting. 09:47 : Stopped command file and observing session over. ----------------------------------------------------------------------