GTAC Observation Log 1. Date : 15/09/2021 2. Observation Sr. No. : 13503 3. Observer : Michal Jerzy Michalowski, Daniel Perley, Kuntal Misra, Martin Blazek, Michael Bremer, ANKUR GHOSH, Luca Izzo, David Alexander Kann, Resmi Lekshmi, Ruben Sanchez Ramirez, Steve Schulze, Christina Thoene, Antonio deUgartePostigo 4. Observer\'s Email : mj.michalowski@gmail.com, d.a.perley@ljmu.ac.uk, kuntal@aries.res.in, alf@iaa.es, bremer@iram.fr, ghosh.ankur1994@gmail.com, luca.izzo@gmail.com, kann@iaa.es, l.resmi@gmail.com, ruben@sramirez.es, steve.schulze@weizmann.ac.il, cthoene@iaa.es, adeugartepostigo@gmail.com 5. Project Name : Continued monitoring of the brightest radio afterglow detected by GMRT 6. Project Code : 40_047 7. Operator(s) : Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/15sep/40_047_15sep2021_gsb.lta, /gwbifrdata1/15sep/40_047_15sep2021_gwb.lta 10. LogFlag File : 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/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) : 1399 1399 1450 1450 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. E05 : : Feed jammed. S06 : : Mech Maintenance. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Sep 2021 08:00:00 - 15 Sep 2021 09:08:00 35. ONLINE Machine : TGC 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 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 : SUBA4 GPU_CNTRL : ONLINE/TGC 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 online/TGC tpa GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : ON GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- 08:13:39 : Started scan on 3C147 for ~ 10.2005 min. 08:33:23 : Started scan on 1130-148 for ~ 5.10027 min. 08:40:18 : Started scan on GRB171205A for ~ 22.1459 min. 09:03:56 : Started scan on 1130-148 for ~ 4.96605 min. 09:08:00 : Stopped scan and observing session over. ----------------------------------