GTAC Observation Log 1. Date : 26/07/2021 2. Observation Sr. No. : 13336 3. Observer : Wasim Raja, Avinash A. Deshpande 4. Observer\'s Email : Wasim.Raja@csiro.au, desh@rri.res.in 5. Project Name : Multi-frequency polarimetry of supernova remnant Cassiopeia A using the upgraded GMRT 6. Project Code : 40_014 7. Operator(s) : Nilesh, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata1/25jul/40_014_25jul2021_gsb.lta, /gwbifrdata1/25jul/40_014_25jul2021_gwb.lta, /gwbifrdata1/25jul/40_014_25jul2021_2.6s_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 : 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) : 306 306 255 255 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. C10 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 25 Jul 2021 22:00:00 - 26 Jul 2021 05:00:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :28 37. RFI Status : 38. Comments (During Observations) : 21:00 : Started settings. ------------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 : 40_014 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 : 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 : ON 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 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 # BEAM-1:175 :: C00 C01 C02 C04 C05 C06 C08 C09 C11 C12 C13 C14 E02 E03 S01 S02 S03 W01 W02 W03 Total=20 22:12:52 : Started scan on 3C286 for ~ 8.18727 min. 22:23:58 : Started scan on 3C345 for ~ 5.18975 min. 22:32:04 : Started scan on 3C303 for ~ 5.23449 min. 22:40:54 : Started scan on 3C468.1 for ~ 2.72909 min. 22:44:07 : Started scan on 3C468.1 for ~ 6.80036 min. 22:52:00 : Started scan on Cas-A for ~ 1.56587 min. stopped scan, scan without power eq. 23:00 : power eq done and restarted command file. 05:09 : Stopped command file and observing session over ------------------------------ 05:19 : Started moon observation. ------------------------------- 05:20 : Started moon.py command file. 06:25 : Started norate_moon.py command file. 06:45:43 : Started scan on 3C48 for ~ 10.2453 min. 07:00:01 : Started scan on DA240. 08:00 : Stopped scan and observation session is over. --------------------------------