GTAC Observation Log 1. Date : 24/05/2019 2. Observation Sr. No. : 11100 3. Observer : Kshitija Kelkar, Narendranath Patra, Dwarakanath K.S. 4. Observer's Email : kshitija@rri.res.in, narendra@ncra.tifr.res.in, dwaraka@rri.res.in 5. Project Name : Hi and continuum survey of spirals in the merging cluster A3376 6. Project Code : 36_098 7. Operator(s) : Deepak, Sachin, Shilpa 8. Command File : /odisk/gtac/cmd/narendra/36_098/24may/a3376.cmd 9. LTA File : /gsbifrdata1/24may/36_098_24may2019_gsb.lta, /gwbifrdata2/24may/36_098_24may2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_098.FLAGS.8 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1341 MHz ,RF2 : 1341 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1290 MHz, ILO2 : 1290MHz , 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 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1341 1341 1290 1290 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :25 32. Name of Non-Working Antennas (with reason for each) : C00 : Mechanical work. C05 : Phase jump in GSB. C10 : 175 pol no fringe. C11 : Low fringe in GSB. W01 : Servo problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 24 May 2019 11:00:00 - 24 May 2019 17:15:00 35. ONLINE Machine : Shivneri 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 : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 36_098 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 -------------------------------- 11:00 : Started settings. 11:25 : Satellite on 3C147, so moved to 3C48. 11:38 : Started scan on 3C48 for ~ 12.0796 min. 11:56 : '/odisk/gtac/cmd/narendra/36_098/24may/a3376.cmd' command file started. 14:00 : C00 released for observation 15:30 : C10 started working 17:00 : Started scan on 3C147 for 15mins 17:15 : Observation stopped.