GTAC Observation Log 1. Date : 25/09/2019 2. Observation Sr. No. : 11499 3. Observer : Nicola Locatelli, Kamlesh Rajpurohit, Franco Vazza, Annalisa Bonafede, Marcus Bruggen, Lawrence Rudnick, Reinout Johannes vanWeeren, Daniele Dallacasa, Shane Patrick O`Sullivan, D Eckert 4. Observer's Email : locatelli@ira.inaf.it, phy.kamlesh@gmail.com, f.vazza@jacobs-university.de, a.bonafede@ira.inaf.it, mbrueggen@hs.uni-hamburg.de, unused-larry@umn.edu, rvweeren@strw.leidenuniv.nl, daniele.dallacasa@unibo.it, shane@hs.uni-hamburg.de, Dominique.Eckert@obs.unige.ch 5. Project Name : Mapping the magnetized cosmic web around A2744 through with Faraday rotation 6. Project Code : 36_015 7. Operator(s) : Navnath, Pramod, Surender 8. Command File : /odisk/gtac/cmd/36_015/GMRT_cmd_files/A2744-cmdfile-1_cmd 9. LTA File : /gsbifrdata/24sep/36_015_24sep2019_gsb.lta, /gwbifrdata1/24sep/36_015_23sep2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_015.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 156 MHz ,RF2 : 156 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 218 MHz, ILO2 : 218MHz , IVLO1 : 62 MHz, IVLO2 : 62 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 : 16.666666 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 138 28. LO5 -2 : 167 29. Frequency Parameters (TPA) : 156 156 218 218 62 62 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C13 : : FE problem S03 : : MCM 4 Time out. E04 : : No fringe in both GSB and GWB. C02 : : Feed jammed. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 Sep 2019 21:00:00 - 25 Sep 2019 04:20:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :24 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 : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 300 300 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_015 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 -------------------------------- 21:00 : Started setup 21:13:24 : Started scan on 3C48 for ~ 9.66367 min. 21:25 : Started command file /odisk/gtac/cmd/36_015/24sep.cmd 22:59 : Electrical power glitch to all antennas. 00:46 : Electrical power failure to East arm antennas. 00:46 : E06 ABC time out. 02:40 : W06 ABC time out. 03:54 : Stopped command file. 04:02 : Started scan on 3C147. 04:07 : Stopped scan and observation session is over.