GTAC Observation Log 1. Date : 02/06/2023 2. Observation Sr. No. : 15462 3. Observer : Ajay Kumar, Yash Bhusare, Shriharsh P. Tendulkar, Yogesh Maan, Visweshwar Ram Marthi, Arpan Pal, Banshi Lal 4. Observer\'s Email : akumar@ncra.tifr.res.in, ybhusare@ncra.tifr.res.in, shriharsh.tendulkar@tifr.res.in, ymaan4@gmail.com, vrmarthi@ncra.tifr.res.in, apal@ncra.tifr.res.in, blal@ncra.tifr.res.in 5. Project Name : Continued monitoring of the active repeating FRB 20220912A with uGMRT 6. Project Code : 44_116 7. Operator(s) : Shriram, Surender 8. Command File : /data1/gtac/cmd/44_116/44_116_02Jun2023_0600_cmd.py 9. LTA File : /gwbifrdata/02jun/44_116b_02jun2023_subar2_b4_gwb.lta, /gwbifrdata/02jun/44_116a_02jun2023_subar1_b3_gwb.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) : W02 : Taken for Mech Work. W04 : Feed Jammed. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 02 Jun 2023 06:00:00 - 02 Jun 2023 08:26:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : ******************************************************************* Important Note for Observer: The refurbishment work of the W02 antenna reflector surface is currently in progress. The refurbishment of the inner sectors will commence from 16th May 2023 onwards. Please note that this ongoing work may affect the sensitivity of the antenna and could also alter the primary beam pattern depending on the size of the holes present on the surface. We advise exercising caution in using the antenna, particularly if your targets are extended or if you are using a wide field. ******************************************************************* ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 8 GPU_ACQ_BW : 200.0000 GPU_FINAL_BW : 200 GPU_EDGE_FRQ : 0 GPU_CHAN_MAX : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : -1 -1 GPU_RF2 : 500 500 GPU_DDCLO2 : 0.000000 0.000000 GPU_SB2 : 1 1 GCODE2 : 44_116A GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 44_116B GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : VOLTAGE GPU_BEAM_3 : PA GPU_BEAM_4 : VOLTAGE GPU_BM_INT : 16 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : RFI Filterring OFF GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 4 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C02 C05 C08 C10 C12 C14 E02 S01 S02 W01 Total=11 # BEAM-1:175 :: C00 C02 C05 C08 C10 C12 C14 E02 S01 S02 W01 Total=11 # BEAM-2:130 :: C00 C02 C05 C08 C10 C12 C14 E02 S01 S02 W01 Total=11 # BEAM-2:175 :: C00 C02 C05 C08 C10 C12 C14 E02 S01 S02 W01 Total=11 # BEAM-3:130 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W03 Total=10 # BEAM-3:175 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W03 Total=10 # BEAM-4:130 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W03 Total=10 # BEAM-4:175 :: C01 C04 C06 C09 C11 C13 E03 E04 S03 W03 Total=10 ------------------------------- 06:00 : Started set-up. 06:19 : Started cmd file. /data1/gtac/cmd/44_116/44_116_02Jun2023_0600_cmd.py 08:26 : Command files topped and observation session over.