GTAC Observation Log 1. Date : 02/12/2022 2. Observation Sr. No. : 14840 3. Observer : Kenda Knowles, Andrew Jordan Baker, Chiara Ferrari, Christoph Pfrommer, Francesco de Gasperin, Gianfranco Brunetti, Gianni Bernardi, John P. Hughes, Joseph Whittingham, Kavilan Moodley, Matt Hilton, Mziyanda Mngqibisa, Nadeem Oozeer, Oleg Smirnov, Rossella Cassano, Sinenhlanhla Precious Sikhosana, Tiziana Venturi, Virginia Cuciti 4. Observer\'s Email : kendaknowles.astro@gmail.com, ajbaker@physics.rutgers.edu, chiara.ferrari@oca.eu, cpfrommer@aip.de, fdg@hs.uni-hamburg.de, brunetti@ira.inaf.it, giannibernardi75@gmail.com, jph@physics.rutgers.edu, jwhittingham@aip.de, moodleyk41@ukzn.ac.za, matt.hilton@mykolab.com, mziyandamngqibisa@yahoo.com, nadeem@sarao.ac.za, osmirnov@gmail.com, rcassano@ira.inaf.it, sneprec@gmail.com, tventuri@ira.inaf.it, vcuciti@hs.uni-hamburg.de 5. Project Name : G-MERGHERS: Spectral studies of MERGHERS sources with the GMRT 6. Project Code : 43_026 7. Operator(s) : Deepak, Navnath, Shriram 8. Command File : /data1/gtac/cmd/43_026/43_026_02Dec2022_1500_cmd.py 9. LTA File : /gsbifrdata1/02dec/43_026_02dec2022_gsb.lta, /gwbifrdata1/02dec/43_026_02dec2022_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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/TGC 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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Dec 2022 15:00:00 - 02 Dec 2022 22:00:00 35. ONLINE Machine : TGC 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 : 400.0000 GPU_FINAL_BW : 400 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 43_026 GPU_CNTRL : ONLINE/TGC 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 : ON GPU_TPA : From online/TGC tpa GPU_BITS : 4 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF GPU_PFB : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED ------GWB RFI Filter Setting----- FILTERED_SIGNALS: RFI_ALL # RFI_ALL=All signals filtered / RFI_CH1 =Channel 1 only / RFI_CH2=Channel 2 only EXTERNAL MEDIAN : 0 # integer value(-128 to 127) THRESHOLD VALUE : 4 # integer value(0 to 127) CONSTANT VALUE : 0 # integer value(-128 to 127 FILTERING OPTION: DIGITAL NOISE # BYPASS / CONSTANT=constant value is used / THRESHOLD / DIGITAL_NOISE DDC_STATUS : OFF # DDC = ON/OFF -------------------------------- 15:00 : Started settings. 15:20 : started command file, \'/data1/gtac/cmd/43_026/43_026_02Dec2022_1500_cmd.py\' 22:00 : Command file stopped and observation session over.