GTAC Observation Log 1. Date : 18/07/2017 2. Observation Sr. No. : 9582 3. Observer : Mousumi Das, Huib T Intema, Dwarakanath K.S. 4. Observer's Email : chandaniket@gmail.com, intema@strw.leidenuniv.nl, dwaraka@rri.res.in 5. Project Name : Low Frequency Imaging of Nearby Star Forming Galaxies 6. Project Code : 32_029 7. Operator(s) : Deepak, Nilesh, Pramod, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/32_029/obs.cmd 9. LTA File : /gsbifrdata/17jul/32_029_17jul2017_gsb.lta, /gwbifrdata1/17jul/32_029_17jul2017_gwb.lta 10. LogFlag File : /odisk/online1/logflags/32_029.FLAGS 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 : 255MHz , 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) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C01 : : very low Fringe. W03 : : Strong RFI lines. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Jul 2017 22:05:00 - 18 Jul 2017 09:40:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : 22:00 : Started settings. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 510 510 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 32_029 -------------------------------- 22:08 : Started scan on 3C286 for ~ 16min. 22:28 : Started command file. /odisk/gtac/cmd/32_029/obs.cmd 03:18 : Stopped command file due to source transit. 09:03 : Stopped command file. 09:07 : Started scan on 3C48. 09:25 : observation closed.