GTAC Observation Log 1. Date : 26/05/2015 2. Observation Sr. No. : 7804 3. Observer : Ruta Kale, Rossella Cassano, Gianfranco Brunetti, Giacintucci Simona, Tiziana Venturi, Daniele Dallacasa, Virginia Cuciti 4. Observer's Email : ruta@ncra.tifr.res.in, rcassano@ira.inaf.it, brunetti@ira.inaf.it, simona@astro.umd.edu, tventuri@ira.inaf.it, daniele.dallacasa@unibo.it, vcuciti@ira.inaf.it 5. Project Name : Uncovering the nature of candidate diffuse emission in the Extended GMRT Radio Halo Survey 6. Project Code : 28_073 7. Operator(s) : Deepak, Navnath 8. Command File : /odisk/gtac/cmd/28_073/obs_26may.cmd 9. LTA File : /gsbifrdata/26may/28_073_26may2015_s4.lta 10. LogFlag File : /odisk/online1/logflags/28_073.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1281 MHz ,RF2 : 1281 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1230 MHz, ILO2 : 1230MHz , IVLO1 : 51 MHz, IVLO2 : 51 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 : 33.333333 MHz 24. Final BW : 33.333333 MHz; Step # 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1281 1281 1230 1230 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : W03 : : Maintenance Work(Servo) S03 : : Feed Removal Work for CST Painting. S04 : : BLDC Work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 26 May 2015 17:00:00 - 26 May 2015 23:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : 17:00 : Started setup. 17:12 : Started scan on 3C147 for observation. 17:15 : W03 & S03 Released for Observation. /odisk/gtac/cmd/28_073/obs_26may.cmd 22:50 : Started scan on 3C286 for 10 min. 23:06 : Observation session over. --------------------------------------------------------------