GTAC Observation Log 1. Date : 24/5/2013 2. Observation Sr. No. : 6513 3. Observer : R. Gobat 4. Observer's Email : raphael.gobat@cea.fr 5. Project Name : A deep 325 Mhz search for IC ghosts in the distant cluster CL1449+0856 6. Project Code : 23_068 7. Operator(s) : Navanath, Pramod, Surender 8. Command File : /odisk/gtac/cmd/23_068/obs.cmd 9. LTA File : /gsbifrdata1/24may/23_068_24may2013_2s.lta, /gsbifrdata/24may/23_068_24may2013.lta 10. LogFlag File : /odisk/online1/logflags/23_068.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 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. 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) : 306 306 255 255 51 51. 25. Integration Time : 2.013 Sec. 26. No of Antennas Working(Fringing) :28 27. Name of Non-Working Antennas (with reason for each) : E03 : BLDC work. W02 : servo problem. 28. Note for Backup :-- 29. Start and End Time of Obs.(IST): 19:10 - 18:44 30. ONLINE Machine : Shivneri 31. Comments (During Observations) : 19:10 : Started set up. 19:19 : Started scan on 3C286 for ~ 15.3008 min. 19:37 : Started command file. 02:49 : Started scan on 3C298 for ~5min 02:55 : scan stopped. 03:01 : Started scan on 3C468.1 started. 03:06 : scan stopped observing session over. -----------------------------------------------------------------