GTAC Observation Log 1. Date : 22/09/2019 2. Observation Sr. No. : 11481 3. Observer : Kenda Knowles, Sinenhlanhla Precious Sikhosana, Andrew Jordan Baker, Neeraj Gupta, Matt Hilton, John P. Hughes, Huib T Intema, C.H. IshwaraChandra, Kavilan Moodley, Erik Reese, Cristobal Sifon, Jon Sievers 4. Observer's Email : kendaknowles.astro@gmail.com, sneprec@gmail.com, ajbaker@physics.rutgers.edu, ngupta@iucaa.in, hiltonm@ukzn.ac.za, jph@physics.rutgers.edu, intema@strw.leidenuniv.nl, ishwar@ncra.tifr.res.in, moodleyk41@ukzn.ac.za, ereese@vcccd.edu, sifon@astro.princeton.edu, Sieversj@ukzn.ac.za 5. Project Name : Low frequency radio study of a complete mass-selected sample of SZ clusters from ACTPol 6. Project Code : 36_050 7. Operator(s) : Sachin, Surender 8. Command File : /odisk/gtac/cmd/36_050/21sep/obs.cmd 9. LTA File : /gsbifrdata1/21sep/36_050_21sep2019_gsb.lta, /gwbifrdata2/21sep/36_050_21sep2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_050.FLAGS.10 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 : Full_Stokes 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 : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C13 : FE problem. E04 : ABC timeout. C02 : Feed jammed. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Sep 2019 22:00:00 - 22 Sep 2019 06:15:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_050 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 : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 22:00:00 : Started set-up. 22:14:50 : Started scan on 3C48 for ~ 9.39523 min. 22:28:55 : Started command file. 05:55 : Closed command file after phase cal. 05:58 : Started scan on flux cal 3C48. 06:13 : Stopped scan on 3C48 and closed observation session.