GTAC Observation Log 1. Date : 27/11/2021 2. Observation Sr. No. : 13699 3. Observer : Ramesh Bhat, Samuel James McSweeney, Sanjay S. Kudale, Nicholas Anthony Swainston, Nikita Agarwal, Parul Janagal 4. Observer\'s Email : ramesh.bhat@curtin.edu.au, sammy.mcsweeney@gmail.com, ksanjay@gmrt.ncra.tifr.res.in, nickaswainston@gmail.com, nikitaagar2503@gmail.com, parulj3795@gmail.com 5. Project Name : GMRT follow-up of a new sub-pulse drifting pulsar PSR J0026-1955 6. Project Code : 41_105 7. Operator(s) : Sachin 8. Command File : /odisk/gtac/cmd/obs.py 9. LTA File : /gsbifrdata/27nov/41_105_27nov21_gsb.lta, /gwbifrdata/27nov/41_105_27nov21_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 :28 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C10 : Feed problem. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 27 Nov 2021 19:00:00 - 27 Nov 2021 23:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : ------------GWB Setting--------- GPU_MODE : Realtime GPU_LTA : 4 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 : Full_Stokes GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 41_105 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : PA GPU_BEAM_3 : OFF GPU_BEAM_4 : PA GPU_BM_INT : 64 GPU_GAINEQ : ON GPU_TPA : From online/TGC tpa GPU_BITS : 8 Bits GPU_FILRFI : Voltage Detection GPU_BEAM_S : OFF GPU_PFB : OFF GPU_PFB_TAPS : 4 GPU_BEAM_BIT : 16 GPU_VLT_BIT : 8 GPU_WALSH : OFF GPU_ENV : RELEASED -------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 Total=12 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 Total=12 # BEAM-2:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-2:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 S01 W01 Total=15 # BEAM-3:130 :: Total=0 # BEAM-3:175 :: Total=0 # BEAM-4:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 W01 W02 W03 Total=21 # BEAM-4:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 E04 S01 S02 S03 W01 W02 W03 Total=21 ----------------------------------------------------------------------- 19:25:17 : Started scan on 3C48 for ~ 10.3795 min. 19:42:40 : Started scan on 0025-260 for ~ 2.86331 min. 19:45:53 : Started scan on 0025-260 for ~ 2.19222 min. 19:49:55 : Started scan on B2327-20 for ~ 15.7929 min. 20:07:25 : Started scan on 0025-260 for ~ 2.81857 min. 20:10:38 : Started scan on 0025-260 for ~ 2.63961 min. 20:14:58 : Started scan on J0026-1956 for ~ 55.745 min. 21:12:22 : Started scan on 0025-260 for ~ 2.86331 min. 21:15:36 : Started scan on 0025-260 for ~ 2.59487 min. 21:19:38 : Started scan on J0026-1956 for ~ 55.745 min. 22:16:47 : Started scan on 0025-260 for ~ 2.77383 min. 22:19:57 : Started scan on 0025-260 for ~ 2.59487 min. 22:23:58 : Started scan on J0026-1956 for ~ 37.8494 min. 23:00 : Stopped command file and closed observation session.