GTAC Observation Log 1. Date : 20/03/2020 2. Observation Sr. No. : 11990 3. Observer : Poonam Chandra, Nayana AJ, Deepak Chandra Joshi, Roger Chevalier, Peter Brown, Claes Fransson 4. Observer\'s Email : poonam@ncra.tifr.res.in, nayan89deva@gmail.com, djoshi@ncra.tifr.res.in, rac5x@virginia.edu, grbpeter@yahoo.com, claes@astro.su.se 5. Project Name : Understanding young supernovae interacting with their progenitor winds with the aid of low frequency observations: a ToO proposal 6. Project Code : 37_091 7. Operator(s) : Nilesh, Sachin, Shriram 8. Command File : /odisk/gtac/cmd/37_091/obs.cmd 9. LTA File : /gsbifrdata1/20mar/37_091_20mar2020_gsb.lta, /gwbifrdata1/20mar/37_091_20mar2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/37_091.FLAGS.13 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 :24 32. Name of Non-Working Antennas (with reason for each) : C03 : Maintenance. C04 : FPS problem. C14 : ABC time out. E03 : FPS problem. E06 : FPS problem. W01 : ABC time out. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 20 Mar 2020 08:00:00 - 20 Mar 2020 11:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :23 37. RFI Status : 38. Comments (During Observations) : 08:00 : Started settings. ------------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 : 37_091 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 : 16 GPU_GAINEQ : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 08:55 : Observations delayed due to multiple problems for various systems viz. ONLINE, TELEMETRY, FPS and RF systems (C08,W03). 09:01:55 : Started scan on 3C48 for ~ 5.23449 min. 09:09:42 : Started scan on 2022+616 for ~ 4.83183 min. 09:15:56 : Started scan on SN19ACC for ~ 35.4334 min. 09:26 : C06 taken for painting. 09:52:48 : Started scan on 2022+616 for ~ 4.96605 min. 09:59:08 : Started scan on SN19ACC for ~ 40.9364 min. 10:41:31 : Started scan on 2022+616 for ~ 4.96605 min. 10:49:34 : Started scan on 3C48 for ~ 9.79788 min. 11:00 : Stopped scan and observation closed.