GTAC Observation Log 1. Date : 17/11/2020 2. Observation Sr. No. : 12582 3. Observer : Sonalika Purkayastha, Poonam Chandra 4. Observer\'s Email : spurkayastha@ncra.tifr.res.in, poonam@ncra.tifr.res.in 5. Project Name : Follow-up Observations of Three Gamma Ray Bursts at uGMRT Frequencies 6. Project Code : 39_047 7. Operator(s) : Navnath 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/17nov/39_047_17nov2020_gsb.lta, /gwbifrdata/17nov/39_047_17nov2020_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 : 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) : 1409 1409 1460 1460 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. W03 : FE Work. C11 : Feed jam. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 17 Nov 2020 15:00:00 - 17 Nov 2020 17:00:00 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 : 400.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1460 1460 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 39_047 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 : 128 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 -------------------------------- 15:00:00 : Started setup using TGC. 15:20:53 : Started scan on 3C286 for ~ 8.23201 min. 15:25:00 : E06 Started working. 15:30:00 : Started cmd fil.e /data1/gtac/cmd/39_047/obs_17nov20_1500.py 15:35:32 : Started scan on 1745+173 for ~ 5.01079 min. 15:44:19 : Started scan on GRB200219C for ~ 30.7806 min. 16:23:18 : Started scan on 1745+173 for ~ 5.01079 min. : scan 4 is bad scan ... chaged to outer track 16:45:13 : Started scan on GRB200219C for ~ 9.84262 min. 16:57:24 : Started scan on 1745+173 for ~ 7.15827 min. 17:05:00 : observation session over. -----------------------------------------------------------------------