GTAC Observation Log 1. Date : 25/9/2013 2. Observation Sr. No. : 6719 3. Observer : Rahul Basu,Dipanjan Mitra 4. Observer's Email : rbasu@ncra.tifr.res.in,dmitra@ncra.tifr.res.in 5. Project Name : Multi frequency studies of precursor emission from pulsars 6. Project Code : ddtB097 7. Operator(s) : Nilesh,Sachin,Shilpa, 8. Command File : 9. LTA File : /gsbifrdata/25sep/ddtb097_25sep2013.lta,/gsbifrdata/25sep/ddtb097_25sep2013.lta.1, 10. LogFlag File : /odisk/online1/logflags/DDTB097.FLAGS, 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 : 24+4 dB, 32 MHz,ON, IF-CH2 : 24+4 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 : OFF, 19. Stokes : TotIntensity 20. Beam - 1 : IA 21. Beam - 2 : PA 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 :24 31. Name of Non-Working Antennas (with reason for each) : C00 : MCM time out. C03 : Servo problem. C12 : PC104. E02 : 130pol low fringe. E05 : No feed. S03 : BLDC 32. Note for Backup : 33. Start and End Time of Obs.(IST): 04:00 - 08:15 34. ONLINE Machine : Shivneri 35. No of Antennas Working(Fringing) at the end :24 36. Comments (During Observations) : 04:00 : Started settings for 1280MHz. 04:30 : Power equilised on 0840+132 @ 300counts. 04:40 : Phasing done on 0840+132. Due to broadband RFI changed the settings to 1390MHz. 05:05 : Power equilised on 0840+132 @ 300counts. 05:11 : Phasing done on 0840+132. 05:13 : Started scan B0823+26. 05:54 : Stopped scan. 06:01 : Phasing done on 1008+075. 06:02 : Started scan on B0943+10. 07:08 : Started scan on B0940+16. 08:15 : Stopped scan and closed observation session.