GTAC Observation Log 1. Date : 20/12/2013 2. Observation Sr. No. : 6847 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) : Deepak,Pramod,Shilpa,Surender 8. Command File : /odisk/gtac/cmd/poonam/20dec13/obs2.cmd 9. LTA File : /gsbifrdata1/20dec//25_079_20dec2013.lta, 10. LogFlag File : /odisk/online1/logflags/25_079.FLAGS.1, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320 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) : 1371 1371 1320 1320 51 51. 29. Integration Time : 16.106112 Sec. 30. No of Antennas Working(Fringing) at the begining :27 31. Name of Non-Working Antennas (with reason for each) : C05 : MCM -14 time out. E05 : all mcms time out. E06 : Servo problem. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 08:00 - 16:03 34. ONLINE Machine : Lenyadri 35. No of Antennas Working(Fringing) at the end :26 36. Comments (During Observations) : 08:00 : Started set-up. 08:22 : Started scan on 3C286. 08:39 : Stopped scan. 08:40 : Started command file. 08:55 : W02 taken for painting. 08:55 : C02 strong RFI. 09:17 : W04 taken for painting. 09:21 : C10 taken for painting. 10:06 : E05 & E06 started working. 11:00 : E05 frequently getting ABC reset. 12:16 : S06 frequently applying el brakes. 14:54 : W02 & C05 Released for observation. 15:42 : Stopped command file. 15:43 : C05 servo time out. 15:51 : Started scan on 3C48. 16:03 : Stopped scan and observation session is over.