GTAC Observation Log 1. Date : 30/09/2022 2. Observation Sr. No. : 14649 3. Observer : Shyam Sunder, Jayanta Roy, Shubham Singh, Bhaswati Bhattacharyya 4. Observer\'s Email : ssunder@ncra.tifr.res.in, jroy@ncra.tifr.res.in, ssingh@ncra.tifr.res.in, bhaswati.bhattacharyya78@gmail.com 5. Project Name : Probing off-pulse radio emission of pulsars using gated imaging 6. Project Code : 42_116 7. Operator(s) : Rupsing 8. Command File : /data1/gtac/cmd/jroy/42_116_30sep.py 9. LTA File : /gwbifrdata1/30sep/42_116_30sep2022_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 : 24+4 dB, 32 MHz,OFF, IF-CH2 : 24+4 dB, 32 MHz,OFF 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 : 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 :25 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C04 : FPS feed Jammed. S04 : Servo problem. W01 : Large Tracking Offsets. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 30 Sep 2022 00:00:00 - 30 Sep 2022 01:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :25 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 : 4096 GPU_CHAN_NUM : 0:4095:1 GPU_STOKES : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 550 550 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : 42_116 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : IA GPU_BEAM_2 : OFF GPU_BEAM_3 : PA GPU_BEAM_4 : OFF GPU_BM_INT : 4 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 : RELEASED ---------------------------------------------------------------------- # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 E04 S01 S02 S03 W02 W03 W04 Total=20 # BEAM-1:175 :: C00 C01 C02 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 E04 S01 S02 S03 W02 W03 W04 Total=20 E04 S01 S02 S03 W02 W03 W04 Total=20 # BEAM-3:130 :: C00 C01 C02 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 E04 S01 S02 S03 W02 W03 W04 Total=20 # BEAM-3:175 :: C00 C01 C02 C05 C06 C08 C09 C10 C12 C13 C14 E02 E03 E04 S01 S02 S03 W02 W03 W04 Total=20 ------------------------------------------------------------------------ 00:15 : Setup done for GSB. 00:18 : Power eq. on 3C48 00:20 : GSB halted. ------------------------------------------------------------------------ 00:25 : Started GWB. 00:30 : Power eq. and phasing 3C48. ------------------------------------------------------------------------ 00:35 : Phasing on 0432+416. ------------------------------------------------------------------------ 00:38 : Phasing not working properly due to scintillation. ------------------------------------------------------------------------ 00:40 : Started command file. 01:00 : Stopped command file and observation closed.