GTAC Observation Log 1. Date : 24/04/2015 2. Observation Sr. No. : 7732 3. Observer : Ruta Kale ,Viral Parekh 4. Observer's Email : ruta.kale@gmail.com 5. Project Name : Radio sources in the Massive and Distant Clusters of the WISE Survey\r\n\r\n 6. Project Code : 28_028 7. Operator(s) : Pramod, Rupsing 8. Command File : /odisk/gtac/cmd/28_028/23apr15/obs_s4.cmd,,/odisk/gtac/cmd/28_028/23apr15/obs_s6.cmd 9. LTA File : /gsbifrdata/23apr/28_028_23apr2015.lta.1,/gsbifrdata/23apr/28_028_23apr2015.lta 10. LogFlag File : /odisk/online1/logflags/28_028.FLAGS.1,/odisk/online1/logflags/28_028.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1281 MHz ,RF2 : 1281 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1230 MHz, ILO2 : 1230MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 33.333333 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1281 1281 1230 1230 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : W06 : Very low fringe. C00 : Electrical Problem C14 : Taken by mechanical people. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 23 Apr 2015 17:00:00 - 24 Apr 2015 01:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 16:32 : Y-arm antennas released by electrical(MSEB). 17:05 : Started pointing on 3C147. 17:40 : Pointing done. 15:41 : Started set up for 1280 MHz. 17:55 : Started scan on 3C147. 18:09 : Stopped scan. 18:13 : Started command file '/odisk/gtac/cmd/28_028/23apr15/obs_s4.cmd' 20:00 : C00 problem solved and taken for observation. 20:32 : Scintillation appeared in the data. 20:50 : Stopped command file. 20:52 : Started scan on 3C286. 21:37 : Started new lta file. 23:00 : 01:00 : data affected by Scintillation 01:00 : observing session over. -----------------------------------