GTAC Observation Log 1. Date : 8/2/2013 2. Observation Sr. No. : 6367 3. Observer : Sumana Nandi 4. Observer's Email : djs@ncra.tifr.res.in,sumana1981@gmail.com 5. Project Name : A multifrequency study of a new sample of double-double radio galaxies (DDRGs) 6. Project Code : 23_056 7. Operator(s) : Deepak, Navanath, Surender 8. Command File : /odisk/gtac/cmd/sumana/sumana_s4.cmd 9. LTA File : /gsbifrdata/08feb/23_056_08feb2013_8s.lta, /gsbifrdata/08feb/23_056_08feb2013_16s.lta 10. LogFlag File : /odisk/online1/logflags/23_056.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540 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. GAIN EQ : ON 17. Stokes : Total_Intensity 18. Beam - 1 : OFF 19. Beam - 2 : OFF 20. ACQ BW : 32 MHz 21. Maximum Channels : 256 22. IFBW (MHz) : LO5 (KHz) : 32:149000-156000 23. Final Bandwidth (MHz): OFF MHz; Step # 0 24. Frequency Parameters (TPA) : 591 591 540 540 51 51. 25. Integration Time : 16.106 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : C04 : Taken for Servo motor replacement. W05 : Servo problem. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 19:30 - 01:00 30. ONLINE Machine : Lenyadri 31. Comments (During Observations) : 19:30 : Started set up. 19:38 : Started scan on 3C48. 19:53 : Stopped scan. 20:03 : Started command file. 00:45 : Started scan on 3C286 for 15min. 01:00 : Observing session over. -----------------------------------------------------------