GTAC Observation Log 1. Date : 08/12/2020 2. Observation Sr. No. : 12652 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) : Navnath, Nilesh 8. Command File : /odisk/gtac/cmd/39_064/08dec/obs.cmd 9. LTA File : /gsbifrdata1/08dec/39_064_08dec2020_gsb.lta, /gwbifrdata1/08dec/39_064_08dec2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_064.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1406.8835 MHz ,RF2 : 1406.8835 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1345 MHz, ILO2 : 1345MHz , IVLO1 : 61.8835 MHz, IVLO2 : 61.8835 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 : 4 MHz; Step # 2 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 138.1165 28. LO5 -2 : 166.8835 29. Frequency Parameters (TPA) : 1406.8835 1406.8835 1345 1345 61.8835 61.8835 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): 08 Dec 2020 04:00:00 - 08 Dec 2020 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : 03:55 : Started settings. ------------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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_064 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 : 64 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : ON GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 04:13:56 : Started scan on 3C147 for ~ 14 min. 04:33:00 : Started command file. /odisk/gtac/cmd/39_064/08dec/obs.cmd 10:13:00 : E02 taken for Mechanical Work. 10:43:41 : Started scan on 3C286 for ~ 14.8982 min. 11:00:00 : Observation session over. -----------------------------------------------