GTAC Observation Log 1. Date : 11/7/2013 2. Observation Sr. No. : 6601 3. Observer : Sagar Vijay Godambe,Pratik Majumdar,Manojendu Choudhury,Ananda Hota 4. Observer's Email : sagar.godambe@gmail.com,majumdar.mpratik@gmail.com,manojendu@cbs.ac.in,hotaananda@gmail.com 5. Project Name : GMRT Observations of Fermi Unidentified Source 2FGL J0307.4+4915 6. Project Code : 24_004 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd/24_004/obs.cmd 9. LTA File : /gsbifrdata/11jul/24_004_11jul2013.lta,/gsbifrdata/11jul/24_004_11jul2013.lta.1,/gsbifrdata/11jul/24_004_11jul2013.lta.2, 10. LogFlag File : /odisk/online1/logflags/24_004.FLAGS.17,/odisk/online1/logflags/24_004.FLAGS.12,/odisk/online1/logflags/24_004.FLAGS.18, ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 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) :28 31. Name of Non-Working Antennas (with reason for each) : E05 : BLDC. W05 : No fringe. S06 : maintenance. 32. Note for Backup : 33. Start and End Time of Obs.(IST): 02:15 - 07:10 34. ONLINE Machine : 35. Comments (During Observations) : 02:15 : Started set up. 02:19 : Started scan on 3C48. 02:25 : Halted the GSB due to buffer loss & Node 9 DMA time out. 03:10 : Restarted GSB. 03:13 : Started scan on 3C48 for ~10min. 03:24 : Started command file. 04:32 : Stopped command file. 04:32 : Restarted GSB due to buffer loss. 04:39 : Restarted command file. 07:10 : Stopped command file and observing session over.