GTAC Observation Log 1. Date : 14/09/2021 2. Observation Sr. No. : 13495 3. Observer : Dipanjan Mitra, Rahul Basu, Sk Minhajur Rahaman, Giorgi Melikidze 4. Observer\'s Email : dmitra@ncra.tifr.res.in, rahulbasu.astro@gmail.com, rahaman.minhajur93@gmail.com, G.Melikidze@ia.uz.zgora.pl 5. Project Name : Single pulse polarization study of young pulsars 6. Project Code : 40_036 7. Operator(s) : Nilesh, Rupsing, Surender 8. Command File : /data1/gtac/cmd/40_036/40_036_polcal.py,, /data1/gtac/cmd/40_036/40_036_list1_cmd.py,, /data1/gtac/cmd/40_036/40_036_list2_cmd.py,, /data1/gtac/cmd/40_036/40_036_list3_cmd.py,, /data1/gtac/cmd/40_036/40_036_list4_cmd.py, 9. LTA File : /gwbifrdata/13sep/40_036_13sep2021_10s_gwb.lta, /gwbifrdata2/13sep/40_036_13sep2021_2s_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 : ON 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 : 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. C14 : BLDC. S06 : Elevation Gear Box replacement. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 13 Sep 2021 13:00:00 - 14 Sep 2021 00:10:00 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 : 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 : 500 500 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : SUBA4 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BEAM_1 : PA GPU_BEAM_2 : OFF 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_WALSH : OFF GPU_ENV : RELEASED -------------------------------- 13:20 : Setup done. ------------------------------------------------------------------------ # GWB GAC configuration is as follows : # BEAM-1:130 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 W01 W02 Total=18 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C10 C11 C12 C13 E02 E03 S01 S02 W01 W02 Total=18 ------------------------------------------------------------------------ 13:22:28 : Started scan on 3C286 for ~ 19.8642 min. ------------------------------------------------------------------------ 13:50 : Started command file \"/data1/gtac/cmd/40_036/40_036_polcal.py\" 14:20 : Stopped command file. ------------------------------------------------------------------------ 14:28 : Started command file \"/data1/gtac/cmd/40_036/40_036_list1_cmd.py\" -------------------------------------------------------------------------- 15:24-15:36 : GAB LO changed automatically. Bad data. Raised callsheet. GAB LO restored. -------------------------------------------------------------------------- 17:30 : Command file stopped. 17:35 : Started command file, \'/data1/gtac/cmd/40_036/40_036_list2_cmd.py\' 20:56 : Command file stoped. 21:04 : Started command file, \'/data1/gtac/cmd/40_036/40_036_list3_cmd.py\' 22:44 : Stopped command file. 22:47 : Started command file. \'/data1/gtac/cmd/40_036/40_036_list4_cmd.py\' 00:10 : Stopped command file and observation closed.