GTAC Observation Log 1. Date : 17/12/2018 2. Observation Sr. No. : 10737 3. Observer : Barnali Das, Poonam Chandra, Wade, James Sikora 4. Observer's Email : barnali@ncra.tifr.res.in, poonam@ncra.tifr.res.in, marmottecam@yahoo.ca, james.sikora@queensu.ca 5. Project Name : Searching for coherent radio emission from Ap type stars 6. Project Code : 35_096 7. Operator(s) : Navnath, Pramod, Sachin 8. Command File : /odisk/gtac/cmd/35_096/17_dec/obs.cmd 9. LTA File : /gsbifrdata/17dec/35_096_17dec18_gsb.lta, /gwbifrdata2/17dec/35_096_17dec2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_096.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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_shivneri 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : ON 20. Stokes : Full_Stokes 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C01 : Painting work. C02 : Painting work. S04 : Servo applies brakes frequently. W06 : Taken for maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Dec 2018 09:00:00 - 17 Dec 2018 18:30:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :30 37. Comments (During Observations) : 09:18:30 : Started scan on 3C286 for ~ 11.0058 min. 09:32:39 : Started command file. 15:00 : Stopped command file for flux cal, since at 13:40 could not take flux cal as it was set, we waited till whole loop to complete and flux cal from 3C48, 3C286 and 3C147 was not up till 15:00 Hrs. 16:12 : C01 and C02 started working. 17:00 : W06 started working. 17:50 : Stopped command file. 17:53 : Started scan on 3C48. 18:03 : Stopped scan and observation session is over.