GTAC Observation Log 1. Date : 22/01/2019 2. Observation Sr. No. : 10828 3. Observer : Meera Nandakumar, Prasun Dutta 4. Observer's Email : meeranandakr.rs.phy17@itbhu.ac.in, pdutta.phy@itbhu.ac.in 5. Project Name : Density and velocity of turbulent HI in spiral galaxies 6. Project Code : 35_004 7. Operator(s) : Deepak, Rupsing, Sachin 8. Command File : /odisk/gtac/cmd/35_004/ngc4736.cmd 9. LTA File : /gsbifrdata1/22jan/35_004_22jan2019_gsb.lta, /gwbifrdata1/22jan/35_004_22jan2019_gwb_gwb.lta 10. LogFlag File : /odisk/online1/logflags/35_004.FLAGS ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1425.2499 MHz ,RF2 : 1425.2499 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1490 MHz, ILO2 : 1490MHz , IVLO1 : 64.7501 MHz, IVLO2 : 64.7501 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_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 # 1 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 135.2499 28. LO5 -2 : 169.7501 29. Frequency Parameters (TPA) : 1425.2499 1425.2499 1490 1490 64.7501 64.7501 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C00 : Taken for FE work. C02 : ABC time out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 Jan 2019 03:00:00 - 22 Jan 2019 09:00:00 35. ONLINE Machine : Lenyadri 36. No of Antennas Working(Fringing) at the end :28 37. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 12.5000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 25.0000 25.0000 GPU_SB4 : 1 1 GCODE4 : 35_004 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 : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF ------------------------------------------------------------------------- 03:23 : Started command file. 09:00 : Command file stopped. 09:04 : Started scan on 3C286 for 10mins. 09:14 : Observation stopped.