GTAC Observation Log 1. Date : 01/10/2022 2. Observation Sr. No. : 14656 3. Observer : Visweshwar Ram Marthi, Shriharsh P. Tendulkar, Preeti Kharb, Yi Feng, Di Li 4. Observer\'s Email : vrmarthi@ncra.tifr.res.in, shriharsh.tendulkar@tifr.res.in, preeti.kharb@gmail.com, yifeng@nao.cas.cn, ithaca.li@gmail.com 5. Project Name : Demonstration of GMRT-FAST VLBI with FRB 20190520B 6. Project Code : ddtC244 7. Operator(s) : Deepak, Shilpa 8. Command File : /data1/gtac/cmd/DDTC244/DDTC244_01Oct2022_1100_cmd.py 9. LTA File : /gwbifrdata/01oct/ddtc244_01oct2022_gwb.lta.1, /gwbifrdata/01oct/ddtc244_01oct2022_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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 : TGC 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 : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1371 1371 1320 1320 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C11 : Feed not rotating. E02 : Servo problem. S02 : Maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 01 Oct 2022 11:00:00 - 01 Oct 2022 14:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : Pulsar Data Files On :- GWBH8 : /nvme0/gpuuser/DDTC244_nvme0_01oct2022/* /nvme1/gpuuser/DDTC244_nvme1_01oct2022/* ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100 GPU_FINAL_BW : 100 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1456 1456 GPU_DDCLO4 : 0.000000 0.000000 GPU_SB4 : 1 1 GCODE4 : DDTC244 GPU_CNTRL : TGC GPU_FSTOP : ON GPU_BEAM_1 : OFF GPU_BEAM_2 : VOLTAGE GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 8 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF GPU_PFB : OFF 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 : 3 # 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 : ON # DDC = ON/OFF -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-2:130 :: C00 C01 C04 C05 C06 C08 C09 C10 C12 C13 C14 S01 W01 Total=13 # BEAM-2:175 :: C00 C01 C04 C05 C06 C08 C09 C10 C12 C13 C14 S01 W01 Total=13 -------------------------------------------------------------------------- 11:00 : Started settings. 11:28 : Power equalized and phasing done on J1512-0905. 11:36 : \'/data1/gtac/cmd/DDTC244/DDTC244_01Oct2022_1100_cmd.py\' command file started. 14:00 : Stopped command file and observing session over.