GTAC Observation Log 1. Date : 23/07/2017 2. Observation Sr. No. : 9596 3. Observer : Ruta Kale, Viral Parekh 4. Observer's Email : ruta@ncra.tifr.res.in, viral.iucaa@gmail.com 5. Project Name : A SoUthern Cluster sCale Extended Source Survey (SUCCESS) 6. Project Code : 32_043 7. Operator(s) : Deepak, Nilesh, Shilpa, Surender 8. Command File : /odisk/gtac/cmd/32_043/32_043_cmdfile-23jul.cmd 9. LTA File : /gsbifrdata/23jul/32_043_23jul2017.lta.2, /gsbifrdata/23jul/32_043_23jul2017.lta.1, /gsbifrdata/23jul/32_043_23jul2017.lta, /gwbifrdata2/23jul/32_043_23jul2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_043.FLAGS.6, /odisk/online1/logflags/32_043.FLAGS.5, /odisk/online1/logflags/32_043.FLAGS.4, /odisk/online1/logflags/32_043.FLAGS.3 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 : 540MHz , 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_shivneri 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 : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 591 591 540 540 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) : C04 : Servo problem. S02 : Servo problem. W03 : Strong RFI. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 23 Jul 2017 06:10:00 - 23 Jul 2017 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 06:00 : Started settings. 06:10 : Started scan on 3C48. 06:15 : GSB problem. Fringe vanished for following antennas. 130:(C00,C01,C02,C03) and 130:(C09,C10,C11,C12) 06:28 : Halted GSB. 06:50 : Restarted GSB, problem persists. 06:55 : Started scan on 3C48. 07:15 : Started command file. /odisk/gtac/cmd/32_043/32_043_cmdfile-23jul.cmd 09:31 : Due to GSB problem, halted GSB. 09:58 : GSB problem solved (130:(C00,C01,C02,C03) and 130:(C09,C10,C11,C12) started working), restarted GSB. C04 started working. 10:00 : Restarted command file. 10:42 : Stopped command file. 10:47 : Started scan on 3C48. 11:00 : Stopped scan and observing session over.