GTAC Observation Log 1. Date : 21/03/2018 2. Observation Sr. No. : 10170 3. Observer : Tiziana Venturi, Dharam Vir Lal, Mariachiara Rossetti, Fabio Gastaldello, Lawrence Rudnick, Giacintucci Simona, Annalisa Bonafede, Gianfranco Brunetti, D Eckert 4. Observer's Email : tventuri@ira.inaf.it, dharam@ncra.tifr.res.in, mchiara.rossetti@gmail.com, gasta@lambrate.inaf.it, larry@astro.umn.edu, simona@astro.umd.edu, abonafede@ira.inaf.it, brunetti@ira.inaf.it, Dominique.Eckert@obs.unige.ch 5. Project Name : Probing the unique structure of the composite radio halo in Abell 2142 and the role of the radio galaxy population 6. Project Code : 33_052 7. Operator(s) : Deepak, Pramod, Shilpa 8. Command File : /odisk/gtac/cmd/33_052/20mar18/20mar18_obs.cmd 9. LTA File : /gsbifrdata1/20mar/33_052_20mar2018_gsb.lta, /gwbifrdata2/20mar/33_052_20mar2018_gwb.lta 10. LogFlag File : /odisk/online1/logflags/DDTB304.FLAGS.8, /odisk/online1/logflags/33_052.FLAGS.2 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1454 MHz ,RF2 : 1454 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1505 MHz, ILO2 : 1505MHz , 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 : 256 26. Channel Numbers : 0:255:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 1454 1454 1505 1505 51 51 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C00 : Feed jam. C12 : Feed jam. S01 : Low fringe to 175 pol at 1390MHz in GSB only 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Mar 2018 23:00:00 - 21 Mar 2018 10:50:00 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 : 2 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 8192 GPU_CHAN_NUM : 0:8191:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 33_052 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 : OFF GPU_TPA : From GWB GUI. GPU_BITS : For 32 inputs GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF --------------------------------------------------------------------------- 23:00 : Started settings. 23:26 : Started scan on 3C286. 23:44 : Stopped scan. 23:47 : '/odisk/gtac/cmd/33_052/20mar18/20mar18_obs.cmd' command file started. 07:38 : C14 taken for Mech Work. 09:14 : Stopped command file. 09:18 : Started scan on 3C468.1 for 10mins. 09:30 : Started scan on 3C48. 09:30 : C00 & C12 released for observation. 09:40 : Stopped scan and observing session over.