GTAC Observation Log 1. Date : 15/12/2020 2. Observation Sr. No. : 12681 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) : Sachin 8. Command File : /odisk/gtac/cmd/39_078/obs.cmd 9. LTA File : /gsbifrdata1/15dec/39_078_15dec2020_gsb.lta, /gwbifrdata/15dec/39_078_15dec2020__10s_gwb.lta 10. LogFlag File : /odisk/online1/logflags/39_078.FLAGS.1 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1399 MHz ,RF2 : 1399 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1450 MHz, ILO2 : 1450MHz , 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) : 1399 1399 1450 1450 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S06 : Feed problem. W02 : Feed problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Dec 2020 00:00:00 - 15 Dec 2020 02:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 400.0000 GPU_FINAL_BW : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_078 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 : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 16 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 23:43:43 : Started scan on 3C48 for ~ 9.1268 min. 00:00:22 : Started scan on 0744-064 for ~ 4.96605 min. 00:06:10 : Started scan on SN2020UEM for ~ 29.9305 min. 00:37:07 : Started scan on 0744-064 for ~ 4.96605 min. 00:42:53 : Started scan on SN2020UEM for ~ 29.9305 min. 01:13:59 : Started scan on 0744-064 for ~ 4.83183 min. 01:19:58 : Started scan on SN2020UEM for ~ 22.4143 min. 01:44:02 : Started scan on 0744-064 for ~ 4.83183 min. 01:56:10 : Started scan on 3C48 for ~ 4.16075 min. 02:00 : Closed observation session.