GTAC Observation Log 1. Date : 08/02/2015 2. Observation Sr. No. : 7598 3. Observer : Lijo Thomas George, Ruta Kale, Viral Parekh, Dwarakanath K.S. 4. Observer's Email : lijo@rri.res.in, ruta@ncra.tifr.res.in, viral.parekh2912@gmail.com, dwaraka@rri.res.in 5. Project Name : Low frequency study of candidate mini-halos 6. Project Code : 27_052 7. Operator(s) : Deepak, Rupsing 8. Command File : /odisk/gtac/cmd/lijo/m0329_325/obs.cmd 9. LTA File : /gsbifrdata/08feb/27_052_08feb2015.lta 10. LogFlag File : /odisk/online1/logflags/27_052.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 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) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C03 : Gear box replacement. W06 : 130 pole no fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 08 Feb 2015 17:45:00 - 08 Feb 2015 22:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 17:45 : Started scan on 3C48. 18:00 : Stopped scan. 18:07 : Started command file. -------------------------------------------------------------------------- 18:55 : Satellite track with source(18:55 to 20:31) -------------------------------------------------------------------------- 20:00 : W04 RFI. -------------------------------------------------------------------------- 21:43 : Stopped command file. 21:45 : Started scan on 3C48. 22:00 : Stopped scan and observation session over.