GTAC Observation Log 1. Date : 15/11/2014 2. Observation Sr. No. : 7425 3. Observer : Habib Khosroshahi, Halime Miraghaei, Mojtaba Raouf, Erfan Nourbakhsh 4. Observer's Email : habib@ipm.ir, h.miraghaee@gmail.com, m.raouf@ipm.ir, erfanxyz@gmail.com 5. Project Name : Radio activity in brightest group galaxies fade out as the halo ages? 6. Project Code : 27_055 7. Operator(s) : Manisha, Nilesh, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/27_055/s3/obs.cmd 9. LTA File : /gsbifrdata/15nov/27_055_15nov2014.lta 10. LogFlag File : /odisk/online1/logflags/27_055.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 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) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C01 : Feed cage painting. E06 : BLDC work. C13 : LOW fringe. W04 : Low fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Nov 2014 04:35:00 - 15 Nov 2014 09:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. Comments (During Observations) : 04:35 : Started settings. 04:52 : Started scan on 3C147. 05:07 : Stopped scan. 05:12 : '/odisk/gtac/cmd/27_055/s3/obs.cmd' command file started. 08:42 : Stopped command file. 08:44 : Started scan on 3c286 for ~15min. 09:00 : Closed observation.