GTAC Observation Log 1. Date : 18/06/2018 2. Observation Sr. No. : 10351 3. Observer : Nissim Kanekar, Jayaram Narayanan Chengalur 4. Observer's Email : nkanekar@ncra.tifr.res.in, chengalur@ncra.tifr.res.in 5. Project Name : %latex%A search for HI 21cm emission from a strongly-lensed, massive galaxy at $z=1.0271$. 6. Project Code : 34_056 7. Operator(s) : Rupsing, Sachin 8. Command File : /odisk/gtac/cmd/nissim/hatlas.cmd 9. LTA File : /gsbifrdata1/17jun/34_056_17jun18_gsb.lta, /gwbifrdata/17jun/34_056_17jun2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/34_066.FLAGS.4, /odisk/online1/logflags/34_056.FLAGS.11 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 686 MHz ,RF2 : 686 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 635 MHz, ILO2 : 635MHz , 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 686 686 635 635 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C12 : fringe fluctuation. C06 : Stronge RFI line in GSB. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Jun 2018 21:00:00 - 18 Jun 2018 02:10:00 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 : 2 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 100.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 635 635 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 34_056 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 : 8 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 64 inputs. GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------------------------------------------------- 21:22 : Started command file. 01:50 : Stopped command file and took phase cal. 02:00 : Started scan on 3C468.1 for 7 mins. 02:07 : Stopped observation session and closed observation session.