GTAC Observation Log 1. Date : 16/02/2016 2. Observation Sr. No. : 8419 3. Observer : Poonam Chandra 4. Observer's Email : poonam@ncra.tifr.res.in 5. Project Name : GMRT monitoring of GRB160131A\r\n 6. Project Code : DDTB211 7. Operator(s) : Deepak, Navnath, Pramod 8. Command File : /odisk/gtac/cmd/poonam/ddtb211/obs.cmd 9. LTA File : /gsbifrdata1/16feb/ddtb211_16feb2016.lta 10. LogFlag File : /odisk/online1/logflags/DDTB211.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : E04 : Taken for CST painting C08 : Taken for BLDC C02 : No fringe C01 : Low fringe W02 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 16 Feb 2016 18:00:00 - 16 Feb 2016 22:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :25 37. Comments (During Observations) : 18:00 : Started set up. 18:00 to 18:51 : GWB acq. 400MHz mode was not working. Hence halt the GWB 3-4 times and finally started in 200MHz mode. 18:51 : Started scan on 3C48 for 15 min. 19:05 : Stopped scan and started command file. '/odisk/gtac/cmd/poonam/ddtb211/obs.cmd' 20:27 to 20:33 : Scintillation is observed. 21:43 : Stopped command file. 21:48 : Started scan on 3C147. 21:48 to 22:00 : Scintillation is observed. 22:00 : Stopped scan and observation session is over.