GTAC Observation Log 1. Date : 21/07/2017 2. Observation Sr. No. : 9589 3. Observer : Namitha Issac, Anandmayee Tej, Sarita Vig, C.H. IshwaraChandra, Swarna Kanti Ghosh 4. Observer's Email : namiann@gmail.com, anandmayee.tej@gmail.com, sarita@iist.ac.in, ishwar@ncra.tifr.res.in, swarna@ncra.tifr.res.in 5. Project Name : Ionized emission associated with G12.42\\+0.50 6. Project Code : 32_063 7. Operator(s) : Navnath, Rupsing 8. Command File : /odisk/gtac/cmd/32_063/obs_21july17.cmd 9. LTA File : /gsbifrdata/21jul/32_063_21jul2017.lta 10. LogFlag File : /odisk/online1/logflags/32_063.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 : 540MHz , 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 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 :26 32. Name of Non-Working Antennas (with reason for each) : C01 : : Servo Problem C06 : : AZ run flag absent S04 : : ABC Time out W03 : : Strong RFI. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Jul 2017 17:00:00 - 21 Jul 2017 23:05:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 17:30 : Started setup. 18:03 : Started scan on 3C286 for 20min. 18:25 : scan stopped. 18:30 : Started command file. /odisk/gtac/cmd/32_063/obs_21july17.cmd -------------------------------------------------------------------------- 19:32 : C01 and C06 Started working. -------------------------------------------------------------------------- 22:42 : Stopped command file 22:49 : Started scan on 3C286. 23:00 : Stopped scan and observation over.