GTAC Observation Log 1. Date : 13/12/2021 2. Observation Sr. No. : 13750 3. Observer : Manisha Caleb, Jayanta Roy, Bhaswati Bhattacharyya, Kaustubh Milind Rajwade, Ben Stappers, Mayuresh Surnis, Fabian Jankowski, Vincent Morello, Laura Nicole Driessen, Tiaan Bezuidenhout, Rob Fender, Patrick Woudt, Ian Heywood, Mateusz Malenta, Jakob van den Eijnden, Michael Kramer, Ewan Barr 4. Observer\'s Email : manishacaleb@gmail.com, jroy@ncra.tifr.res.in, bhaswati@ncra.tifr.res.in, rkaustubh10@gmail.com, Ben.Stappers@manchester.ac.uk, msurnis@gmail.com, fabian.jankowski@manchester.ac.uk, vmorello@gmail.com, Laura.Driessen@Postgrad.Manchester.ac.uk, mechiel.bezuidenhout@postgrad.manchester.ac.uk, Rob.Fender@physics.ox.ac.uk, pwoudt@ast.uct.ac.za, ian.heywood@physics.ox.ac.uk, mateusz.malenta@manchester.ac.uk, jakob.vandeneijnden@st-hildas.ox.ac.uk, mkramer@mpifr-bonn.mpg.de, ebarr@mpifr-bonn.mpg.de 5. Project Name : Low frequency observations of a new 76-s period neutron star with the uGMRT 6. Project Code : 41_055 7. Operator(s) : Pramod 8. Command File : /data1/gtac/cmd/jroy/new_41_055_13dec.cal.polar.py, data1/gtac/cmd/jroy/new_41_055_13dec.polar.py 9. LTA File : /gwbifrdata1/13dec/41_055_13dec2021_band4_gwb.lta, /gwbifrdata2/13dec/41_055_13dec2021_band3_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 : OFF 20. Stokes : Total_Intensity 21. Beam - 1 : IA 22. Beam - 2 : OFF 23. ACQ BW : 33.333333 MHz 24. Final BW : 0 MHz; Step # 0 25. Maximum Channels : 512 26. Channel Numbers : 0:511:1 27. LO5 -1 : 149 28. LO5 -2 : 156 29. Frequency Parameters (TPA) : 306 306 255 255 51 51 30. Integration Time : 4.0265 Sec 31. No of Antennas Working(Fringing) at the beginning :27 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C11 : Self power fluctuation. C14 : Servo problem 33. Note for Backup : 34. Start and End Time of Obs.(IST): 13 Dec 2021 04:00:00 - 13 Dec 2021 06:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :27 37. RFI Status : 38. Comments (During Observations) : ------------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 : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF3 : 500 500 GPU_DDCLO3 : 0.000000 0.000000 GPU_SB3 : 1 1 GCODE3 : 41_055 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 41_055 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : IA GPU_BEAM_3 : PA GPU_BEAM_4 : PA 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 : 8 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : TRIAL -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C01 C02 C06 C08 C12 E02 S01 W01 Total=8 # BEAM-1:175 :: C01 C02 C06 C08 C12 E02 S01 W01 Total=8 # BEAM-2:130 :: C00 C04 C05 C09 C10 C13 E03 E04 E05 S02 S03 S04 W02 W03 W04 Total=15 # BEAM-2:175 :: C00 C04 C05 C09 C10 C13 E03 E04 E05 S02 S03 S04 W02 W03 W04 Total=15 # BEAM-3:130 :: C01 C02 C06 C08 C12 E02 S01 W01 Total=8 # BEAM-3:175 :: C01 C02 C06 C08 C12 E02 S01 W01 Total=8 # BEAM-4:130 :: C00 C04 C05 C09 C10 C13 E03 E04 E05 S02 S03 S04 W02 W03 W04 Total=15 # BEAM-4:175 :: C00 C04 C05 C09 C10 C13 E03 E04 E05 S02 S03 S04 W02 W03 W04 Total=15 03:00 : Started set up. 04:35 : Power equalized and phasing done. 04:05 : Started command file. \'/data1/gtac/cmd/jroy/new_41_055_13dec.cal.polar.py\' 04:23 : Stopped command file and started next command file. \'data1/gtac/cmd/jroy/new_41_055_13dec.polar.py\' 06:36 : Stopped command file and observation session is over.