GTAC Observation Log 1. Date : 11/05/2018 2. Observation Sr. No. : 10245 3. Observer : Veena V.S., Sarita Vig, Nirupam Roy 4. Observer's Email : veenagangothri@gmail.com, sarita@iist.ac.in, roy.nirupam@gmail.com 5. Project Name : HI mapping study of the prospective SNR candidate associated with G351.7-1.2 6. Project Code : 34_014 7. Operator(s) : Deepak, Shilpa 8. Command File : /odisk/gtac/cmd/34_014/10may18/obs_10may.cmd 9. LTA File : /gsbifrdata1/10may/34_014_10may2018.lta, /gwbifrdata2/10may/34_014_10may2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/34_014.FLAGS.1, /odisk/online1/logflags/34_014.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1427 MHz ,RF2 : 1427 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1490 MHz, ILO2 : 1490MHz , IVLO1 : 63 MHz, IVLO2 : 63 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 16 MHz,ON, IF-CH2 : 4+14 dB, 16 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 : 16.666666 MHz 24. Final BW : 4 MHz; Step # 1 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137 28. LO5 -2 : 168 29. Frequency Parameters (TPA) : 1427 1427 1490 1490 63 63 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) : C11 : No fringe. W03 : Frequently getting reset. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 10 May 2018 23:00:00 - 11 May 2018 06:31:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. Comments (During Observations) : ------------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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 34_014 GPU_CNTRL : ONLINE GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : OFF GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 32 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- Note : Line observation with full stokes is not working in GSB. --------------------------------------------------------------------------- 23:00 : Started settings. 23:32 : Started scan on 3C286 for 12 mins. 01:05 : W03 started working. 02:25 : Command file stopped. 02:30 : Started scan on 3C286 for 12mins. 02:45 : Restarted command file. 06:09 : Stopped command file. 06:16 : Started scan on 3C48. 06:31 : Stopped scan and observing session over.