GTAC Observation Log 1. Date : 10/09/2019 2. Observation Sr. No. : 11430 3. Observer : Poonam Chandra, Dipankar Bhattacharya, Nayana AJ, Stephen Bradley Cenko, Alessandra Corsi 4. Observer's Email : poonam@ncra.tifr.res.in, dipankar@iucaa.in, nayan89deva@gmail.com, brad.cenko@nasa.gov, Alessandra.Corsi@ttu.edu 5. Project Name : Follow up observations of GRB 171205 - lowest frequency GRB detected with the uGMRT 6. Project Code : 36_058 7. Operator(s) : Navnath, Sachin 8. Command File : /odisk/gtac/cmd/poonam/36_058/band4/obs.txt 9. LTA File : /gsbifrdata1/10sep/36_058_band4_10sep2019_gsb.lta, /gwbifrdata1/10sep/36_058_band4_10sep2019_gwb.lta 10. LogFlag File : /odisk/online1/logflags/36_058.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 591 MHz ,RF2 : 591 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 540 MHz, ILO2 : 540MHz , 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 : Full_Stokes 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) : 591 591 540 540 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :28 32. Name of Non-Working Antennas (with reason for each) : C00 : : Painting Work C14 : : Strucral Repair work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 10 Sep 2019 14:40:00 - 10 Sep 2019 17:00:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :28 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 : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : -1 -1 GCODE4 : 36_058 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 : OFF GPU_TPA : From GWB GUI. GPU_BITS : 4 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF -------------------------------- 14:40 : Started setup. 14:55 : Started scan on 3C286 for 10 min. /odisk/gtac/cmd/poonam/36_058/band4/obs.txt 14:56:12 : Started scan on 3C286 for ~ 10.2005 min. 15:16:48 : Started scan on 1130-148 for ~ 4.83183 min. 15:29:50 : Started scan on GRB171205 for ~ 35.9703 min. 16:11:42 : Started scan on 1130-148 for ~ 4.83183 min. 16:24:59 : Started scan on GRB171205 for ~ 28.1857 min. 16:54:15 : Started scan on 1130-148 for ~ 5.3687 min. 17:00 : Closed observation session.