GTAC Observation Log 1. Date : 31/07/2015 2. Observation Sr. No. : 7956 3. Observer : John Antoniadis, Robert Main, Ue Li Pen, Marten H vanKerkwijk, Michael Kramer, Keith Vanderlinde, Siqi Liu 4. Observer's Email : antoniadis@dunlap.utoronto.ca, main@astro.utoronto.ca, pen@cita.utoronto.ca, mhvk@astro.utoronto.ca, Michael.Kramer@manchester.ac.uk, vanderlinde@di.utoronto.ca, sqliu@astro.utoronto.ca 5. Project Name : Probing the properties of the double pulsar at low frequencies 6. Project Code : 28_068 7. Operator(s) : Sachin, Shilpa 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/31jul/28_068_31jul2015.lta 10. LogFlag File : /odisk/online1/logflags/28_068.FLAGS\r,/odisk/online1/logflags/28_068.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 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 : 16.666666 MHz 24. Final BW : 16.666666 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 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) : E02 : BLDC work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 31 Jul 2015 08:00:00 - 31 Jul 2015 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 08:00 : Started settings. 08:12 : Checked fringes on 3C147. RAW Voltage mode is not working. 08:40 : Rebooted all nodes. 08:55 : Started scan on 3C147 at RAW Voltage mode. 09:15 : RAW Voltage mode having problem. 09:30 : Again rebooted all nodes, but problem still persist. 11:00 : Observing session over.