GTAC Observation Log 1. Date : 19/01/2020 2. Observation Sr. No. : 11817 3. Observer : Nayana AJ, Hidetoshi Sano, Yasuo Fukui, Poonam Chandra, Narendra Nath Patra, Naslim Neelamkodan 4. Observer\'s Email : nayan89deva@gmail.com, sano@a.phys.nagoya-u.ac.jp, fukui@a.phys.nagoya-u.ac.jp, poonam@ncra.tifr.res.in, naren.ncra@gmail.com, naslim.n@uaeu.ac.ae 5. Project Name : Unveiling the shocked neutral hydrogen associated with the synchrotron X-ray bright supernova remnant RX J1713.7−3946 6. Project Code : 37_118 7. Operator(s) : Rupsing, Sachin, Shriram, Surender 8. Command File : /odisk/gtac/cmd/37_118/19jan2020.cmd 9. LTA File : /gsbifrdata1/19jan/37_118_19jan2020_gsb.lta, /gwbifrdata2/19jan/37_118_19jan2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_118.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1410.1535 MHz ,RF2 : 1410.1535 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1350 MHz, ILO2 : 1350MHz , IVLO1 : 60.1535 MHz, IVLO2 : 60.1535 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 6 MHz,ON, IF-CH2 : 4+12 dB, 6 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 # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 139.8465 28. LO5 -2 : 165.1535 29. Frequency Parameters (TPA) : 1410.1535 1410.1535 1350 1350 60.1535 60.1535 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C04 : MCM 14 Time out. W06 : Very low fringe. S01 : Phase and amplitude jump @175 pol. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 19 Jan 2020 06:00:00 - 19 Jan 2020 14:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 37_118 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 : 128 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ------------------------------------------------------------------ 06:16 : Started scan on 3C286. 06:31 : Stopped scan. 06:35 : Source rise @06:48. 06:40 : Started command file. 06:41 : W06 started working. 11:18 : C04 Released for observation. 12:52 : Stopped command file due to source/phase below horizon. 13:10 : Started scan on 3C48 for ~ 50.7343 min. 14:00 : Stopped scan and observing session over. ------------------------------------------------------------------