GTAC Observation Log 1. Date : 03/05/2015 2. Observation Sr. No. : 7759 3. Observer : Pratik Dabhade, Joydeep Bagchi, Madhuri Gaikwad 4. Observer's Email : pratikdabhade13@gmail.com, joydeep@iucaa.ernet.in, madhuri.explorer@gmail.com 5. Project Name : GMRT observations of 3 new giant radio quasars 6. Project Code : 28_007 7. Operator(s) : Pramod, Surender 8. Command File : /odisk/gtac/cmd/28_007/03may15_s1/obs.cmd,,/odisk/gtac/cmd/28_007/03may15_s2/obs.cmd 9. LTA File : /gsbifrdata/03may/28_007_03may2015.lta.1,/gsbifrdata/03may/28_007_03may2015.lta 10. LogFlag File : /odisk/online1/logflags/28_007.FLAGS.2 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 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 : 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 : : ABC time-out. W05 : taken for Maintenance. S04 : servo time-out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 03 May 2015 10:00:00 - 03 May 2015 22:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 10:00 : Started set-up. 10:18 : Started scan on 3c48 for 30min. 10:50 : Started command file. '/odisk/gtac/cmd/28_007/03may15_s1/obs.cmd' 11:10 : C12 ABC reset. 15:45 : C12 Started working. 15:50 : Stopped command file. 15:57 : Started scan on 3C48.(Common for both .lta file) 16:27 : Stopped scan and started next command file. '/odisk/gtac/cmd/28_007/03may15_s2/obs.cmd' 18:35 : S04 Started working. 19:15 : W05 Started working. 21:23 : Stopped command file. 21:30 : Started scan on 3C286. 22:00 : Stopped scan and observation session is over.