GTAC Observation Log 1. Date : 18/7/2013 2. Observation Sr. No. : 6612 3. Observer : Benito Marcote,Marc Ribo,Josep M. Paredes,C.H. IshwaraChandra 4. Observer's Email : bmarcote@am.ub.es,mribo@am.ub.es,jmparedes@ub.edu,ishwar@ncra.tifr.res.in 5. Project Name : Understanding the low frequency phenomena in the gamma-ray binary LS 5039 6. Project Code : 24_001 7. Operator(s) : Navanath,Nilesh,Shilpa,Surender 8. Command File : /odisk/gtac/cmd/24_001/obs.cmd 9. LTA File : /gsbifrdata/18jul/24_001_18jul2013_8s.lta,/gsbifrdata/18jul/24_001_18jul2013_8s.lta.1, 10. LogFlag File : /odisk/online1/logflags/24_001.FLAGS,/odisk/online1/logflags/24_001.FLAGS.1, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 14 dB, SA2 : dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218 MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 10+12 dB, 16 MHz,ON, IF-CH2 : 10+12 dB, 16 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 : 16.67 MHz 23. Final BW : OFF MHz; Step # 0 24. Maximum Channels : 256 25. Channel Numbers : 0:255:1 26. LO5 -1 : 138.00 27. LO5 -2 : 167.00 28. Frequency Parameters (TPA) : 156 156 218 218 62 62. 29. Integration Time : 8.053056 Sec. 30. No of Antennas Working(Fringing) :28 31. Name of Non-Working Antennas (with reason for each) : E05 : BLDC. C01 : Feed jam. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 18:10 - 03:08 34. ONLINE Machine : Shivneri 35. Comments (During Observations) : 18:10 : Started set up. 18:14 : Started scan on 3C286. 18:38 : Stopped scan and started command file. 21:24 : Stopped command file. 21:24 : GSB halted due to (ack failure + Buffer loss). 22:00 : Restarted GSB and command file. 02:45 : Stopped command file. 02:52 : Started scan on 3C48. 03:08 : Stopped scan and observing session over.