GTAC Observation Log 1. Date : 26/12/2014 2. Observation Sr. No. : 7521 3. Observer : Srikrishna Sekhar, Shweta, C.H. IshwaraChandra, Ramana Athreya 4. Observer's Email : sekhars@students.iiserpune.ac.in, ashweta@students.iiserpune.ac.in, ishwar@ncra.tifr.res.in, rathreya@iiserpune.ac.in 5. Project Name : The Evolution of Spatial Structure of Spectral Index in Dead/Dying Radio Sources 6. Project Code : 27_063 7. Operator(s) : Navnath, Pramod 8. Command File : /odisk/gtac/cmd/27_063/26Dec14_27_063/obs.cmd 9. LTA File : /gsbifrdata/26dec/27_063_26dec2014_16s.lta,/gsbifrdata1/26dec/27_063_26dec2014_2s.lta 10. LogFlag File : /odisk/online1/logflags/27_063.FLAGS.1 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, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 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 : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : E04 : BLDC. W04 : Taken for Mech Work. C10,W01,S03 : No feed@235Mhz. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 26 Dec 2014 18:00:00 - 26 Dec 2014 22:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. Comments (During Observations) : 17:45: Started setup. 18:00 : Started scan on 3C48 for 15min. 18:20 : Started cmd file. /odisk/gtac/cmd/27_063/26Dec14_27_063/obs.cmd 21:50 : Started scan on 3C48 for 15min. 22:10 : Observation session over. ----------------------------------------------------