GTAC Observation Log 1. Date : 27/09/2020 2. Observation Sr. No. : 12465 3. Observer : Maryam Arabsalmani, Sambit Roychowdhury, Emeric Le Floc`h 4. Observer\'s Email : mar.arabsalmani@gmail.com, sroychowdhury@uwa.edu.au, elefloch@cea.fr 5. Project Name : Interaction between the massive host galaxy of GRB 190829A and its companion 6. Project Code : 38_097 7. Operator(s) : Navnath, Nilesh 8. Command File : /odisk/gtac/cmd/38_097/27sep20/38_097_Sep27_cmd.txt 9. LTA File : /gsbifrdata1/27sep/38_097_27sep2020_gsb.lta.1, /gsbifrdata1/27sep/38_097_27sep2020_gsb.lta, /gwbifrdata2/27sep/38_097_27sep2020_gwb.lta.1, /gwbifrdata2/27sep/38_097_27sep2020_gwb.lta 10. LogFlag File : /odisk/online1/logflags/38_097.FLAGS.5 ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1322.5 MHz ,RF2 : 1322.5 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1385 MHz, ILO2 : 1385MHz , IVLO1 : 62.5 MHz, IVLO2 : 62.5 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 : 16.666666 MHz 24. Final BW : 4 MHz; Step # 1 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 137.5 28. LO5 -2 : 167.5 29. Frequency Parameters (TPA) : 1322.5 1322.5 1385 1385 62.5 62.5 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. S04 : Mechanical Work C12 : Maintenance. W03 : No Fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Sep 2020 01:00:00 - 27 Sep 2020 08:15:00 35. ONLINE Machine : Shivneri 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : 01:00 : Started settings Using TGC. ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 GPU_ACQ_BW : 100.0000 GPU_FINAL_BW : 12.5000 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1250 1250 GPU_DDCLO4 : 59.9500 59.9500 GPU_SB4 : -1 -1 GCODE4 : 38_097 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 : 8 GPU_GAINEQ : ON GPU_TPA : From GWB GUI. GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 0 GPU_VLT_BIT : 8 GPU_ENV : RELEASED -------------------------------- 01:40 : Very poor fringe counts with TGC, switched control to ONLINE. 01:50 : Started settings using ONLINE. 02:01 : Started scan on 3C147 for ~ 10 min. 02:14 : Started command file. /odisk/gtac/cmd/38_097/27sep20/38_097_Sep27_cmd.txt 07:48 : Stopped command file. 07:52 : Started scan on 3C147. 08:07 : Stopped scan and observation session is over.