GTAC Observation Log 1. Date : 20/10/2013 2. Observation Sr. No. : 6736 3. Observer : Poonam Chandra,Marianne Lemoine-Goumard,Alak Ray,Fabio Acero,Alexandre Marcowith,Subhashis Roy,Matthieu Renaud,Sanjay Bhatnagar,Sayan Chakraborti,Naveen Yadav,Vincent Tatischeff 4. Observer's Email : poonam@ncra.tifr.res.in,lemoine@cenbg.in2p3.fr,akr@tifr.res.in,fabio.acero@cea.fr,Alexandre.Marcowith@univ-monpt2.fr,roy@ncra.tifr.res.in,mrenaud@lupm.univ-montp2.fr,sbhatnag@aoc.nrao.edu,schakraborti@fas.harvard.edu,nyadav@tifr.res.in,Vincent.Tatischeff@csnsm.in2p3.fr 5. Project Name : GMRT observations of SNR G353.6-0.7 aka HESS J1731-347 6. Project Code : 25_079 7. Operator(s) : Pramod,Rupsingh,Surender 8. Command File : /odisk/gtac/cmd/poonam/20octo2013/20oct2013.cmd 9. LTA File : /gsbifrdata/20oct/25_079_20oct2013.lta, 10. LogFlag File : /odisk/online1/logflags/25_079.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 : 255 MHz , 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 Mode : Realtime 15. GSB LTA : 8 16. GSB CTRL : ONLINE 17. GSB Fstop : ON 18. GAIN EQ : ON 19. Stokes : TotIntensity 20. Beam - 1 : OFF 21. Beam - 2 : OFF 22. ACQ BW : 33.33 MHz 23. Final BW : 33.333333 MHz; Step # 0 24. Maximum Channels : 256 25. Channel Numbers : 0:255:1 26. LO5 -1 : 149.00 27. LO5 -2 : 156.00 28. Frequency Parameters (TPA) : 306 306 255 255 51 51. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) at the begining :29 31. Name of Non-Working Antennas (with reason for each) : C12 : Taken for cheery picker. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 11:45 - 20:00 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :30 36. Comments (During Observations) : 11:45 : Started set-up. 11:55 : Started scan on 3C286. 12:10 : C12 released for observation. 12:23 : Stopped scan. 12:29 : Started scan on 1714-252 for 15min. 12:44 : Started scan on HESS1731 for 40min 13:24 : Started scan on 1714-252 for 10min. 13:38 : Started command file. 19:42 : Stopped command file. 19:49 : Started scan on 3C48. 20:00 : Stopped scan on 3C48 and observation session is over.