GTAC Observation Log 1. Date : 21/07/2021 2. Observation Sr. No. : 13316 3. Observer : Magdalena Kunert-Bajraszewska, Mooley, Aleksandra Wołowska, Preeti Kharb 4. Observer\'s Email : magda@astro.uni.torun.pl, kmooley@caltech.edu, ola@astro.umk.pl, preeti.kharb@gmail.com 5. Project Name : Low frequency observations of switched-on AGNs 6. Project Code : 40_089 7. Operator(s) : Deepak, Navnath 8. Command File : /data1/gtac/cmd/40_089/15jul21/obs.py 9. LTA File : /gsbifrdata/21jul/40_089_21jul2021_gsb_b3.lta, /gwbifrdata/21jul/40_089_21jul2021_gwb_b3.lta 10. LogFlag File : 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/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) : 306 306 255 255 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) : C03 : Mechanical Work. W01 : Feed not rotating/Temp high. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 21 Jul 2021 16:00:00 - 21 Jul 2021 22:00:00 35. ONLINE Machine : TGC 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 : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 2048 GPU_CHAN_NUM : 0:2047:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 470 470 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : SUBA4 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : IA 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 : 8 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 -------------------------------- 16:00:00 : Started setup. 16:24:31 : Started scan on 3C286 for ~ 12.0796 min. 16:40:00 : Started cmd file. /data1/gtac/cmd/40_089/15jul21/obs.py 21:48:23 : Started scan on 1640+12 for ~ 7.24775 min. : cmd file stopped. 3C486.1 is not above horizon. 22:00:03 : Started scan on 3C286 for ~ 2.14748 min. 22:13:00 : Observation session over. -----------------------------------------------------