GTAC Observation Log 1. Date : 31/12/2020 2. Observation Sr. No. : 12743 3. Observer : Narendra Nath Patra, Nirupam Roy, Prerana Biswas, Mousumi Das, Juliana Saponara 4. Observer\'s Email : naren.ncra@gmail.com, roy.nirupam@gmail.com, prerana.biswas1994@gmail.com, chandaniket@gmail.com, juliana.saponara@gmail.com 5. Project Name : HI observation of dark matter deficient galaxies 6. Project Code : 39_064 7. Operator(s) : Rupsing 8. Command File : /data1/gtac/cmd/39_064/31dec/ugc6438.py 9. LTA File : /gsbifrdata1/31dec/39_064_31dec2020_gsb.lta, /gwbifrdata/31dec/39_064_31dec2020_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1408.8501 MHz ,RF2 : 1408.8501 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 63.8501 MHz, IVLO2 : 63.8501 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 16 MHz,ON, IF-CH2 : 4+12 dB, 16 MHz,ON GSB SETTINGS : 14. GSB Host : gsbm1 15. GSB Mode : Realtime 16. GSB LTA : 8 17. GSB CTRL : ONLINE 18. GSB Fstop : ON 19. GAIN EQ : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : IA 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1408.8501 1408.8501 1345 1345 63.8501 63.8501 30. Integration Time : 8.053 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): 31 Dec 2020 23:45:00 - 31 Dec 2020 07:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : GSB_LTA,8 GSB_CHAN_NUM,0:511:1 GSB_ACQ_BW,16.666666 GSB_FSTOP,1 GSB_ENV,1 GSB_HOSTS,0 GSB_STOKES,2 GSB_CNTRL,1 GSB_FINAL_BW,4 GSB_BEAM_1,0:1 GSB_BEAM_2,0:1 GSB_EDGE_FRQ,0.25 GSB_GAINEQ,1 GSB_CD_MODE,0 GSB_BB_LO,136149900:168850100 GSB_CHAN_MAX,512 GSB_MODE,0 ------------------------------------------------------------------------ GPU_FSTOP,1 GPU_PFB,0 GPU_FILRFI,0 GPU_CNTRL,1 GPU_PFB_TAPS,16 GPU_CHAN_NUM,0:4095:1 GPU_BEAM_S,0 GPU_DDC,0 GPU_GAINEQ,1 GPU_EDGE_FRQ,0 GPU_BM_INT,8 GPU_BEAM_3,0:1 GPU_BEAM_2,0:1 GPU_BEAM_1,0:1 GPU_CHAN_MAX,4096 GPU_BEAM_4,0:1 GPU_ENV,1 GPU_HOSTS,2 GPU_MODE,0 GPU_STOKES,2 GPU_TPA,0 GPU_VLT_BIT,8 GPU_LTA,4 GPU_BEAM_BIT,16 GPU_FINAL_BW,1 GPU_ACQ_BW,200.0000 GPU_BITS,8 ------------------------------------------------------------------------- 23:51 : Started scan on 3C147. 00:06 : Stopped scan. 00:15 : Started command file. 06:43 : Stopped command file 06:49 : Started scan on 3C286. 07:00 : Stopped scan and observation session over.