GTAC Observation Log 1. Date : 22/05/2021 2. Observation Sr. No. : 13109 3. Observer : ARUN KUMAR NAIDU, Shriharsh P. Tendulkar, Yashwant Gupta, Biny Sebastian, Sushma Kurapati 4. Observer\'s Email : arun@ncra.tifr.res.in, shriharsh@physics.mcgill.ca, ygupta@ncra.tifr.res.in, biny@ncra.tifr.res.in, sushma@ncra.tifr.res.in 5. Project Name : The uGMRT follow-up of CHIME Repeaters. 6. Project Code : 39_100 7. Operator(s) : Deepak, Shilpa, Shriram, Surender 8. Command File : /data1/gtac/cmd/39_100/obs_21may21.py 9. LTA File : /gwbifrdata2/22may/39_100_22may2021_gwb.lta 10. LogFlag File : 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/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) : 591 591 540 540 51 51 30. Integration Time : 2.0132 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C06 : : Painting. E05 : : LMC -down. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 22 May 2021 12:00:00 - 22 May 2021 16:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :26 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------------------------------------------------- GPU_MODE : Realtime GPU_LTA : 1 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 : VOLTAGE GPU_BEAM_2 : IA GPU_BEAM_3 : OFF GPU_BEAM_4 : OFF GPU_BM_INT : 32 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_ENV : RELEASED -------------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # BEAM-1:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # BEAM-2:130 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=27 # BEAM-2:175 :: C00 C01 C02 C04 C05 C08 C09 C10 C11 C12 C13 C14 E02 E03 E04 E06 S01 S02 S03 S04 S06 W01 W02 W03 W04 W05 W06 Total=27 -------------------------------------------------- 12:00:00 : Started set-up. 12:07:44 : Started scan on 3C147 for ~ 3.087 min. 12:15:35 : Started scan on 3C147 for ~ 9.82025 min. 12:26:34 : Started scan on 3C147OFF for ~ 3.42255 min. 12:36:11 : Started command file. /data1/gtac/cmd/39_100/obs_21may21.py 15:35 : C08 LMC down, so due to this AGN1 hung. Stopped command file. 15:45 : Restarted AGN1. 15:50 : Started scan on 0410+769. 16:00 : Stopped scan and observing session over.