GTAC Observation Log 1. Date : 29/11/2020 2. Observation Sr. No. : 12614 3. Observer : Poonam Chandra, Ayan Biswas, Sonalika Purkayastha, Nayana AJ, Roger Chevalier, Keiichi Maeda, Peter Brown, Alak Ray 4. Observer\'s Email : poonam@ncra.tifr.res.in, ayan.scc2@gmail.com, spurkayastha@ncra.tifr.res.in, nayan89deva@gmail.com, rac5x@virginia.edu, keiichi.maeda@kusastro.kyoto-u.ac.jp, grbpeter@yahoo.com, akr@tifr.res.in 5. Project Name : Understanding young supernovae interacting with their progenitor winds with the aid of low frequency observations 6. Project Code : 39_078 7. Operator(s) : Shilpa, Shriram 8. Command File : /data1/gtac/cmd/poonam/39_078/obs.py 9. LTA File : /gsbifrdata1/28nov/39_078_28nov2020_gsb.lta, /gwbifrdata/28nov/39_078_28nov2020_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1409 MHz ,RF2 : 1409 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1460 MHz, ILO2 : 1460MHz , 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 : TGC 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) : 1409 1409 1460 1460 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :24 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C10 : FECB in disconnected status. E06 : RF not set. S03 : Fibre cut. S04 : Fibre cut. S06 : Fibre cut. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 28 Nov 2020 23:00:00 - 29 Nov 2020 01:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :24 37. RFI Status : 38. Comments (During Observations) : GPU_PFB,0 GSB_CHAN_NUM,0:255:1 GSB_ACQ_BW,33.333333 GSB_FINAL_BW,0 GPU_PFB_TAPS,16 GSB_ENV,1 GPU_CHAN_NUM,0:2047:1 GPU_BEAM_S,0 GSB_STOKES,2 GSB_CNTRL,1 GPU_EDGE_FRQ,0 GSB_BEAM_1,0:1 GSB_BEAM_2,0:1 GPU_BEAM_3,0:1 GPU_BEAM_2,0:1 GPU_BEAM_1,0:1 GPU_BEAM_4,0:1 GSB_GAINEQ,1 GSB_BB_LO,149000000:156000000 GPU_FINAL_BW,1 GPU_VLT_BIT,8 GSB_LTA,8 GPU_FSTOP,1 GPU_FILRFI,0 GPU_BM_INT,8 GSB_HOSTS,0 GPU_DDC,0 GPU_CNTRL,1 GPU_GAINEQ,1 GPU_LTA,4 GSB_FSTOP,1 GPU_CHAN_MAX,2048 GSB_EDGE_FRQ,0 GPU_ENV,1 GPU_HOSTS,2 GPU_MODE,0 GPU_STOKES,2 GSB_CD_MODE,0 GSB_CHAN_MAX,256 GPU_TPA,0 GPU_ACQ_BW,400.0000 GPU_BEAM_BIT,16 GSB_MODE,0 BANDMASK,3 GPU_BEAM4_DATASERVER,gwbh10 CORRMASK,8 ANTENNAMASK,3fffffff -------------------------------------------------------------------------- 23:05 : Taken control from ONLINE to TGC. 23:06 : Started setup. 23:30 : Power equalized on 3C48 @ 120 counts for GWB. 23:37 : Started scan on 3C48 ~ 8 min. 23:47 : \'/data1/gtac/cmd/poonam/39_078/obs.py\' command file started. 23:51 : Goto source command did not wait till 5 min. Not reached the calibrator, but scan started. So, stopped command file. 23:51 : Scan-1 is bad. 23:54 : Restarted command file. 01:03 : Stopped command file and observing session over.