GTAC Observation Log 1. Date : 21/08/2015 2. Observation Sr. No. : 8007 3. Observer : Shweta, Ramana Athreya 4. Observer's Email : ashweta@students.iiserpune.ac.in, rathreya@iiserpune.ac.in 5. Project Name : Mapping the spectral index of Galaxy Clusters with Radio Halos 6. Project Code : 27_070 7. Operator(s) : Manisha, Pramod 8. Command File : /odisk/gtac/cmd/27_070/21aug15/obs.cmd 9. LTA File : /gsbifrdata1/21aug/27_070_21aug2015_2s.lta 10. LogFlag File : /odisk/online1/logflags/27_070.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+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 : 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) : E02 : Taken for BLDC. C12 : ABC time out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Aug 2015 03:00:00 - 21 Aug 2015 09:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 03:00 : Started set up. 03:19 : Started scan 0n 3C147 for 10 min. 03:29 : Stopped scan and started command file. /odisk/gtac/cmd/27_070/21aug15/obs.cmd 09:26 : command file stopped. 09:28 : started scan on 3C147 ~ 20mins. 09:50 : stopped das & observation session.