GTAC Observation Log 1. Date : 18/06/2016 2. Observation Sr. No. : 8666 3. Observer : Surajit Paul, Marcus Bruggen, Annalisa Bonafede, PRATEEK GUPTA, Venkat Vijendra Punjabi, Reju Sam John 4. Observer's Email : surajit@physics.unipune.ac.in, mbrueggen@hs.uni-hamburg.de, annalisa.bonafede@hs.uni-hamburg.de, prateekgidolia@gmail.com, venkypunjabi@gmail.com, rejusamjohn@gmail.com 5. Project Name : GMRT 610 MHz radio halo pilot survey of SDSS galaxy groups 6. Project Code : 30_073 7. Operator(s) : Deepak, Navnath, Shilpa 8. Command File : /odisk/gtac/cmd/30_073/obs.cmd 9. LTA File : /gsbifrdata1/18jun/30_073_18jun2016.lta 10. LogFlag File : /odisk/online1/logflags/30_073.FLAGS.1, /odisk/online1/logflags/30_073.FLAGS 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 : Total_Intensity 21. Beam - 1 : OFF 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 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 :27 32. Name of Non-Working Antennas (with reason for each) : C11 : BLDC work. C12 : BLDC work. E05 : Antenna dish reflector surface refurbishment work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 18 Jun 2016 14:50:00 - 18 Jun 2016 23:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 14:50 : Started settings. 15:08 : Started scan on 3C147 for 15min. 15:33 : '/odisk/gtac/cmd/30_073/obs.cmd' command file started. 17:12 : E05 started working. 22:46 : Stopped command file. 22:49 : Started scan on 3C286. 23:00 : Stopped scan and observing session over.