GTAC Observation Log 1. Date : 11/11/2021 2. Observation Sr. No. : 13643 3. Observer : Jayprakash Kamble 4. Observer\'s Email : jprakash@gmrt.ncra.tifr.res.in 5. Project Name : SSC at band 5 6. Project Code : TST2451 7. Operator(s) : Pramod, Shriram, Surender 8. Command File : /odisk/gtac/cmd 9. LTA File : /gsbifrdata/11nov/tst2451_pntg_11nov2021_gsb.lta, /gsbifrdata1/11nov/tst2451_11nov2021_pol_iso_gsb.lta, /gwbifrdata/11nov/tst2451_11nov2021_pol_iso_gwb.lta 10. LogFlag File : ANTENNA SETTINGS : 11. RF Band(MHz) & Solar Attn(dB)- RF1 : 1371 MHz ,RF2 : 1371 MHz, SA1 : 14 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 1320 MHz, ILO2 : 1320MHz , 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) : 1371 1371 1320 1320 51 51 30. Integration Time : 8.053 Sec 31. No of Antennas Working(Fringing) at the beginning :26 32. Name of Non-Working Antennas (with reason for each) : C03 : Mechanical Work. C00 : RF not set. E04 : Feed not rotating. E05 : No fringe. 33. Note for Backup : 34. Start and End Time of Obs.(IST): 11 Nov 2021 07:00:00 - 11 Nov 2021 10:30:00 35. ONLINE Machine : TGC 36. No of Antennas Working(Fringing) at the end :24 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 : Total_Intensity GPU_SIDEBAND : 1 1 GPU_RF4 : 1450 1450 GPU_DDCLO4 : 0.0000 0.0000 GPU_SB4 : 1 1 GCODE4 : TST2451 GPU_CNTRL : ONLINE/TGC GPU_FSTOP : ON GPU_BM_INT : 8 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 -------------------------------- 07:05 : Pointing over. 07:35 : IF power equalized on JCRAB. 07:36 : deflection test started for 1390. 07:47 : Deflection test over. ---------------------------------------------------------------- 08:05 : Power equalized on 3C147. 08:08 :Started polarization isolation test for 1390 sub-band. ----------------------------------------------------------------------- 08:07:54 : Started scan on 3C147 for ~ 10.2005 min.(all unswapped) 08:19:13 : Started scan on 3C147 for ~ 10.2005 min.(C08 swapped) 08:31:19 : Started scan on 3C147 for ~ 9.30575 min.(S04 swapped) ----------------------------------------------------------------------- 09:25 :Power equalized on Jvirgo. 09:30 :Started polarization isolation test for 1290 sub-band. 09:35 : West arm power failure, W05 and W06 power off for maintenance. -------------------------------------------------------------------------- 10:00 :Power equalized on Jvirgo. 10:03 :Started polarization isolation test for 1160 sub-band. 10:30 :Deflection test over.