GTAC Observation Log 1. Date : 07/05/2021 2. Observation Sr. No. : 13059 3. Observer : Jayanta Roy, Paul Ray, Bhaswati Bhattacharyya, Ben Stappers, Jayaram Narayanan Chengalur, Sanjay S. Kudale, Tyrel J. Johnson, Matthew Kerr, Patrick Weltevrede, Paulo Cesar Freire 4. Observer\'s Email : jroy@ncra.tifr.res.in, paul.ray@nrl.navy.mil, bhaswati@ncra.tifr.res.in, Ben.Stappers@manchester.ac.uk, chengalur@ncra.tifr.res.in, ksanjay@gmrt.ncra.tifr.res.in, tyrel.j.johnson@gmail.com, matthew.kerr@gmail.com, Patrick.Weltevrede@manchester.ac.uk, pfreire@mpifr-bonn.mpg.de 5. Project Name : Long-term timing follow-up for the third transitional redback millisecond pulsar J1227-4853 6. Project Code : 40_067 7. Operator(s) : Deepak 8. Command File : /data1/gtac/cmd/jroy/40_067_7may.py 9. LTA File : /gwbifrdata1/07may/40_067_07may2021_gwb.lta 10. LogFlag File : /odisk/online1/logflags/ 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 : 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. W04 : Mechanical work 33. Note for Backup : 34. Start and End Time of Obs.(IST): 07 May 2021 20:00:00 - 07 May 2021 21:40:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : GPU_LTA = 8 /* LTA values can be : 1,2,4,8,16,32 etc. */ GPU_ACQ_BW = 200.0000 /* 100 MHz, 200 MHz, and 400 MHz etc. */ GPU_FINAL_BW= 1 /* 1,2,4,8,16,32,64 As divisor of ACQ_BW, Val = 200 */ GPU_EDGE_FRQ= 0.000000 /* Freq Entry in steps of Nyq, Val = 0 */ GPU_CHAN_MAX= 4096 /* 1024, 2048, 4096, 8192 and 16384. */ GPU_CHAN_NUM= 0:4095:1 /* any range i:j:1;for i,j