GTAC Observation Log 1. Date : 07/03/2015 2. Observation Sr. No. : 7655 3. Observer : Manash Ranjan Samal, Jessy Jose, Arti Goyal, Devendra Kumar Ojha 4. Observer's Email : manash.samal@oamp.fr, jessy@iiap.res.in, arti.aries@gmail.com, ojha@tifr.res.in 5. Project Name : Studying ionized gas content of the HII complex SH2-252 with GMRT. 6. Project Code : 27_053 7. Operator(s) : Navnath, Nilesh, Pramod 8. Command File : /odisk/gtac/cmd/27_053/mar07.cmd 9. LTA File : /gsbifrdata/06mar/27_053_06mar2015.lta 10. LogFlag File : /odisk/online1/logflags/27_053.FLAGS 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 :29 32. Name of Non-Working Antennas (with reason for each) : W05 No feed of 325 MHz band. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 06 Mar 2015 18:00:00 - 07 Mar 2015 01:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 17:17 : Started scan on 3C147. 17:30 : Stopped scan. 17:35 : Started command file. '/odisk/gtac/cmd/27_053/mar07.cmd' 22:30 : RFI lines appeared to E06. 00:39 : Stopped command file, started scan on phase cal for ~ 5min. 00:47 : Started scan on 3c147 for ~ 14 min. 01:05 : Stopped scan and closed observation.