GTAC Observation Log 1. Date : 15/08/2020 2. Observation Sr. No. : 12309 3. Observer : Virginia Cuciti, Rossella Cassano, Ruta Kale, Andrea Botteon, Francesco de Gasperin, Ignesti, Marcus Bruggen, Gianfranco Brunetti, Reinout Johannes vanWeeren, Shimwell 4. Observer\'s Email : vcuciti@hs.uni-hamburg.de, rcassano@ira.inaf.it, ruta@ncra.tifr.res.in, botteon@strw.leidenuniv.nl, fdg@hs.uni-hamburg.de, alessandro.ignesti2@unibo.it, mbrueggen@hs.uni-hamburg.de, brunetti@ira.inaf.it, rvweeren@strw.leidenuniv.nl, shimwell@strw.leidenuniv.nl 5. Project Name : A systematic spectral study of diffuse radio emission in galaxy clusters with the uGMRT and LOFAR 6. Project Code : 38_025 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/38_025/aug2020/15aug.cmd 9. LTA File : /gsbifrdata1/15aug/38_025_15aug2020_gsb.lta, /gwbifrdata2/15aug/38_025_15aug2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_025.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , 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 : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 16.1061 Sec 31. No of Antennas Working(Fringing) at the beginning :29 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 15 Aug 2020 09:00:00 - 15 Aug 2020 14:20:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :29 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 2 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200.0000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 38_025 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 : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF -------------------------------- 09:03:53 : Started scan on 3C147 for ~ 8.41097 min. 09:13:55 : Started scan on 0834+555 for ~ 5.27923 min. 09:20:31 : Started scan on P181+48 for ~ 41.6969 min. 10:03:34 : Started scan on 0834+555 for ~ 5.27923 min. 10:10:23 : Started scan on P181+48 for ~ 41.518 min. 10:53:28 : Started scan on 0834+555 for ~ 5.54766 min. 11:00:21 : Started scan on P181+48 for ~ 41.7864 min. 11:43:31 : Started scan on 0834+555 for ~ 5.3687 min. 11:50:16 : Started scan on P181+48 for ~ 41.6969 min. 12:33:08 : Started scan on 0834+555 for ~ 5.3687 min. 12:39:50 : Started scan on P181+48 for ~ 41.6075 min. 13:22:50 : Started scan on 0834+555 for ~ 5.45818 min. 13:29:31 : Started scan on P181+48 for ~ 41.7864 min. 14:12:40 : Started scan on 0834+555 for ~ 6.26349 min. 14:22:36 : Started scan on 3C286 for ~ 8.32149 min. Closed observation session.